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RV-12iS #121708

gemivnet

Member
Patron
Hi All,

Here's the first post for our RV-12iS #121708 build log. While we don't technically need this due to us going the E-LSA route, I figured it would be nice to get some opinions from the community as we build that we can either choose to listen to or ignore, haha.

I've wanted to build a plane for a couple of years now, and I was sitting on the couch one weekend in January when I asked the wife (will refer to her as the YL going forward, as it's simpler and I like the amateur radio term) if she wanted to build a plane. Now, both of us don't have pilot's licenses yet, so it's a bit of an ambitious question, but she agreed.

Choosing the RV-12iS​

We did some research on what we wanted to build and explored a bunch of options. RV-7? Tailwheel with a sliding canopy and super fast! RV-10? Super spacious and fast! Sling TSi? Of course those are cool planes, but they're not good trainers and involve a lot of decisions for people who have spent less than an hour in a GA plane. Eventually we narrowed it down to the Sling LSA and RV-12iS. I really liked the Sling LSA but with the significantly longer lead times and less domestic builder support, we ended up choosing the RV-12iS.

So on January 14, four days after we decided to build a plane, we put the deposit down on the fastener kit, empennage kit, and wing kit. The goal is to build it quickly. I'm sure that's what everyone says, but we have free time to dedicate to it. Hoping that the two of us can put in at least 25 hours each a week. We'll see how realistic this becomes by the time we're finished. It will be interesting to go back and re-read this post in a year or two, but because of the planned speed, we're ordering kit parts fast. In early February we also put the deposit down on the fuselage kit and avionics kit (we're going with the Garmin IFR setup). We'll be placing the powerplant and finishing kit deposits in a couple of weeks. This should allow the timing to work so we could finish in January 2027 at the earliest. Of course, it will probably go longer than that.

Learning to Fly​

Now you might be thinking, we don't know how to fly... well, we're working on that. We found a semi-local flight school with RV-12s, and I did 4 lessons and the YL did 2 lessons. Now we're switching to a very local school to get our tickets. The YL will be going the sport pilot route and I'll start with my PPL with the goal to go further down the track later on. Hopefully we'll be done and ready to fly the plane once it's built. What will we use it for? I'd like to train to CFII eventually, she is interested in CFI-S, and we'll do weekend local trips and some longer XC trips to visit family.

Workshop and Workspace​

We're in the process of having our basement remodeled. It's 980 sqft and was previously empty. We're having it finished with a bathroom, bedroom, laundry room, mechanical room, and most importantly a 300 sqft workshop. While it won't be big enough to hold an entire plane, and we'll eventually have to move to the garage, it's going to be a great place to prep parts and assemble smaller structures. This also means we're going to start building a plane while under construction. There's a lot of downtime in construction while waiting for inspections, so it's not super crowded down there with contractors most of the time.

Priming​

Speaking of the garage, we will be using it for priming. Yes, we want to prime the entire interior of the plane. Why? Because if we're spending this much money on the plane, we want it to be as long-lasting as possible. We've decided on Stewart Systems EkoPoxy in ZC Green because we both feel like plane primer should be green. Since it's cold outside, we purchased a Mr. Heater 30k BTU indoor propane heater. The plan is to use plastic sheeting to create a paint wall in the garage, heat the garage up to the minimum temp required for the primer, turn off the heater, vent using the man door and garage door, spray the parts, and then bring them inside to cure for 1-2 days. I did buy a CO detector and will monitor temperature and humidity in the garage. Thankfully this is only temporary until spring arrives, but right now it's cold and there's snow on the ground.

Costs​

Speaking of money, I have a spreadsheet with everything we've purchased plane-related. Tools, the plane itself, etc. Since estimating the cost of a kit build is difficult, I wanted to share exact numbers as much as possible. To date we're at $4,325.52 for tools/consumables and $33,043.75 on the kit. I'll share a more detailed list of everything we bought as time goes on and I figure out the best way to share that information, but we're expecting about $190,000 for the finished (unpainted) plane. Yes, it's a lot in tools, but we purchased everything on the tool list as well as some essential items for the upgraded workshop. We could have gone cheaper if we had wanted. Most tools were purchased from Harbor Freight, Menards, and Aircraft Tool Supply.

Practice Kits​

We bought two practice kits from Vans. We spent a lot of time using the kits to learn a lot. We also watched the Metal Magic series on the Kitplanes Magazine YouTube channel which was very helpful. We've practiced cutting, deburring, drilling, cleaning, etching, priming, riveting, etc. I definitely suggest these practice kits. The first time doing a task, it feels overwhelming and impossible. The second time it feels manageable and easier. Way better to mess up on these than the actual airplane.

EAA and Community​

We reached out to a local EAA Technical Counselor and had breakfast with him at the airport a couple of weeks ago. I'm sure he'll be over soon once the empennage arrives to give us feedback on our initial work. It sounds like he's interested in being involved and we definitely appreciate that. One of the reasons we want to get into aviation is to meet people and build our social circle. We're going to an EAA Chapter soup potluck and attending our first chapter meeting soon as well. We're both very excited about this and have already met a ton of great people in just the month and a half since we decided to build an airplane.

Building as a Team​

The YL is helping build. For the practice kit so far, she's way better than I am at deburring. She also enjoys the cleaning, etching, and priming process. I like the building and clecos are fun (for now, but I'm sure I'll get sick of them), so I'm sure we'll make a good team. Hopefully having both of us working will help mitigate the overhead of priming the entire interior. We've also picked out the tail number and have it reserved already. N1798, because the YL's birthday is exactly that tail number when read phonetically.

What's Next​

The first kit arrived in our city today and is scheduled to arrive on Thursday. We have a couple more things to figure out (such as spraying the primer, our first attempt was awful, much like our first attempt at everything thus far). We'll inventory the parts once they arrive, figure out where to put them in the construction zone that is our house, and then start on the empennage. There's not a huge rush since the wings aren't scheduled to arrive until the end of May, so we have almost three months to build the empennage. That will help us get comfortable with all of the processes before starting the bigger pieces.

Images​

The basement under construction.

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The workshop as we're working on the practice kit. The new shop lights were installed so it's a lot brighter down there now.

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A bunch of tools when they arrived and we picked up the others
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The first practice kit we completed without primer. We made a lot of mistakes on this one!

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Working on the second practice kit

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As promised, here is my spreadsheet data for cost and hours. I want to be as transparent as possible with this to help others estimate the true cost and time needed to build a plane. Sorry for the large amount of data.

This is as of April 5, 2026. I will update this post through the build process so it stays current and will show the grand total at the end.

Cost Summary​

CategoryAmount
Direct Costs$83,063.30
Indirect Costs$7,944.74
Grand Total$91,008.03

Hours Summary​

SectionMyselfYLTotal
Workshop12.513.526.0
Practice Kit11.011.022.0
Empennage39.036.675.7
Wings0.00.00.0
Fuselage0.00.00.0
Finishing0.00.00.0
Avionics0.00.00.0
Powerplant0.00.00.0
Total62.561.1123.7

Direct Costs​

ItemAmount
Kits
Fastener Kit$900.00
Empennage Kit$5,600.00
Wing Kit$14,700.00
Fuselage Kit$12,800.00
Finishing Kit$6,860.00
Powerplant$17,500.00
Garmin G3X Touch IFR Package$17,325.00
Options
3-Blade Propeller$1,120.00
Wheel Fairing Kit$472.50
Sidewalls$260.75
Carpet$190.75
Baggage Compartment Trim$136.50
Canopy Trim Kit$120.00
Glareshield Kit$63.00
Paint
Evoke Paint Scheme Design$1,800.00
Tax
Fastener Kit Tax$56.25
Empennage Kit Tax$350.00
Wing Kit Tax$918.75
Fuselage Kit Tax$800.00
Shipping
Empennage & Fastener Shipping$947.75
Wing Kit ShippingTBD
Fuselage Kit ShippingTBD
Finishing Kit ShippingTBD
Powerplant ShippingTBD
Avionics ShippingTBD
Replacement Parts
VS-1212-L$25.29
HS-01233$27.93
R-01203-1$18.59
HS-1206 (x3)$52.64
HS-1216$17.60
Direct Costs Total$83,063.30

Indirect Costs​

ItemSourceAmount
Reference Materials
The AeroElectric ConnectioneBay$35.28
The Sportplane BuildereBay$10.65
Firewall ForwardeBay$10.65
Sportplane Construction TechniqueseBay$10.65
Aircraft Inspection, Repair & AlterationsSporty's$48.17
Memberships & Registrations
VansAirForce Forum MembershipPayPal$25.00
1-Year Family EAA MembershipEAA$60.00
N-Number ReservationsFAA$30.00
Training
LSRM Course Deposit (x2)Joby Aviation$1,000.00
Practice Blind Rivet Kits (x2)Vans$175.70
Other
RV-12iS Shirts (x2)Vans$63.75
Tools & ConsumablesVarious$6,474.88
Indirect Costs Total$7,944.74

Tools & Consumables Detail​

ItemQtyTotal
Aircraft Tool Supply
ATS Pro Pneumatic "C" Squeezer (3" yoke)1$687.94
ATS Pro Super Duty Rivet Squeezer (3")1$137.95
Parker 37° Flaring Tool1$139.95
3M Cut & Polish Wheel (6"x1"x1/2")1$136.95
Hand Fluting Pliers1$60.36
Imperial Roto-Lok 180° Tube Bender1$58.95
Countersink Microstop2$57.90
Speed Deburr & Countersink Tool1$43.34
#30 Clecos350$297.50
#40 Clecos50$42.50
Imperial Ratcheting Tube Cutter1$29.95
Cleco Pliers, Spring Loaded1$28.95
3M Roloc Holder (2")1$27.20
ATS Sheet Metal Hand Seamer1$26.95
Shop Head Rivet Gauge Set1$26.25
Deluxe Fluting Pliers1$22.95
Flush Head Rivet Set (tall, 1/2")1$9.95
1/8 Protruding Head Rivet Set (tall, 1/2")1$9.95
Flush Head Rivet Set (short, 1/8")2$19.90
12" Extension Drills (#30, #40)2$13.90
Drill Bits (#3, #11, #16, #20, #27, #36, #43, #52, 1/4", 5/16", Q, 3/8")12$81.30
Drill Bits (#12, #19, #30, #40) Extras for high-use sizes11$82.00
100° Countersink Cutters (#12, #19, #27, #30, #40 pilots)5$52.75
120° Countersink Cutter (#30 pilot)1$22.95
Taps (1/4-28, 5/16-24, 3/8-16, 3/8-24, 4-40, 6-32, 8-32, 10-24)8$61.60
Scotch-Brite Roloc Disc, 2" A Med4$12.81
Deburring Blade, Internal/External (B30)3$10.01
Boelube Stick (1.6 oz)1$7.95
Aircraft Tool Supply Subtotal$2,162.16
Aircraft Spruce
Stewart Systems EkoClean (1 Gallon)1$77.96
Stewart Systems EkoEtch (1 Quart)1$35.26
Avery Edge Rolling Tool1$31.19
Avery Double Edge Deburr Tool1$28.05
Aircraft Spruce Subtotal$172.46
Cleaveland Aircraft Tool
3/32 Rivet Dimple Die Set (reduced dia. female die)1$51.43
1/8 Rivet Dimple Die Set (100°)1$51.43
#8 Screw Dimple Die Set1$51.43
Hex Shank Hole Deburring Tool1$33.43
3 Pc. Aluminum Deburr Handle Set1$26.43
Sharpie Marker 3 Pk (Blue)1$6.43
Cleaveland Subtotal$220.58
Harbor Freight
DOYLE 6" Swivel Vise with Anvil & Pipe Jaws1$221.49
BLACK WIDOW HVLP Gravity-Feed Spray Gun (1.7 mm)1$197.54
CHIEF 1/4" Professional Air/Hydraulic Riveter1$166.11
STOREHOUSE 74-Bin Mobile Double-Sided Floor Rack1$166.11
CENTRAL MACHINERY 1"x30" Belt & 5" Disc Sander1$77.51
BAUER 6" Bench Grinder with LED Lights1$44.29
BAUER 3 Gallon Wet/Dry Vacuum1$43.89
BAUER Cyclone Dust Separator Kit1$43.89
GERSON Paint & Body Respirator Kit (Medium)1$40.60
GERSON Paint & Body Respirator Kit (Large)1$40.97
HERCULES Cobalt Step Drill Bit (1/4" to 3/4")1$33.21
Clear Poly Sheeting (20 ft x 25 ft)1$32.91
BAUER Premium Vacuum Accessory Kit1$32.91
2" C-Clamps10$30.90
BAUER HEPA Wet/Dry Vacuum Filter1$29.62
MERLIN NPT Air Flow Control Valve with Gauge2$26.32
WARRIOR Titanium HSS Numbered Drill Bit Set (60-Piece)1$21.94
MERLIN 3/8"x25 ft PVC/Rubber Hybrid Air Hose1$21.94
MERLIN Color-Coded Industrial Coupler & Plug Set (14-Piece)1$21.94
12-Outlet Metal Power Strip (4 ft)1$21.94
Painter's Tape (0.94" x2, 1.88" x1)3$19.17
BRAUN 500 Lumen Professional Swivel Headlamp1$16.60
SPECTRUM 20 oz Paint System Starter Kit1$16.45
White Shop Towels (50-Pack)1$16.45
HERCULES 3" Impact-Rated Magnetic Bit Holder2$15.48
File and Rasp Set (12-Piece)1$15.49
ICON 16 oz Soft Face Dead Blow Hammer1$15.49
Sanding Belts (80-grit x2, 120-grit x1)3$13.26
3" Steel Spring Clamps4$13.25
SPECTRUM 20 oz Paint System Refill Kit1$13.28
Nitrile Gloves (XX-Large, 100-Pack)1$13.16
MERLIN Automotive Quick Coupler & Plug Set (4-Piece)1$11.06
Stainless Steel Lock Wire (1 lb Coil)1$10.96
Letter/Number Stamping Set (36-Piece)1$10.96
Paint Strainers (100-Pack)1$9.87
MERLIN Inline Desiccant Dryer/Filter1$9.87
Pin Punch Set (8-Piece)1$9.86
Needle File Set (10-Piece)1$8.85
QUINN 7" Diagonal Cutters1$8.85
Oil/Water Separator1$8.77
Nut & Bolt Assortment (240-Piece)1$8.77
BAUER Cotton Buffing Wheels (2-Piece)1$8.77
Spray Bottles (2-Pack)1$7.67
Nut & Washer Assortment (460-Piece)1$7.12
MERLIN Air Tool Oil (16 oz)1$6.63
Nitrile Gloves (Small, 100-Pack)1$6.58
Soldering Iron (30W)1$6.57
Disposable Drop Cloth (9 ft x 12 ft)3$6.55
String Knit Gloves (6-Pair)1$5.53
Construction Line Reel (325 ft)1$4.75
Stubby Ball Peen Hammer (8 oz)1$4.38
Auto Center Punch (Brass Handle)1$4.38
Micro Spring Clamp Set (6-Piece)1$2.18
5 Gallon Bucket (Red) Free1$0.00
Harbor Freight Subtotal$1,653.04
Menards
Chrome 5-Tier Mobile Shelving Unit1$98.57
Masterforce 12" Variable Speed Drill Press Rebate applied1$96.84
Swivel Casters (for workbenches, two sets)8$86.52
2x4s for EAA Workbenches (x2)14$61.71
1/2" Galvanized Hardware Cloth (4' x 25')1$55.36
1/2" Plywood Sheets3$53.13
6' Fold-in-Half Banquet Table1$49.80
Mr. Heater Remote LP Installation Kit1$43.97
Workbench Screws (8x2 and 2.5")-$33.40
2x4x8' Construction Lumber7$30.85
Tool Belt1$31.05
Ear Protection (EP3, EP5, Corded)3$30.02
Aluminum Handle Tension Hacksaw1$22.58
Masterforce 3/8"x25' Rubber Air Hose1$22.14
3M Anti-Fog Clear Safety Glasses2$39.84
1/2" x 2x4 OSB3$19.90
Drywall Screws (5 lb Box)1$17.70
Aviation Tin Snips Set (3-Piece)1$15.99
32 TPI Hacksaw Blades (10-Pack)1$15.05
Nitrile Gloves (X-Large)3$11.16
Vise Mounting Hardware (washers, nuts, bolts)-$11.15
T-Handle Tap Wrench (1/4"-1/2")1$10.34
Inline Air Oiler1$9.89
11" 45° Bent Nose Pliers1$8.85
Lacquer Thinner (1 qt)1$7.74
Masterforce 1/4" NPT Mini Regulator with Gauge1$7.74
General Tool 6" Stiff Ruler1$5.41
3.5 Gallon Bucket1$3.51
7-Quart Collapsible Crate1$3.31
All-Purpose Sprayer Bottles (32 oz)2$2.19
Staples (1/2" Crown, 1,000 Count)1$1.10
Menards Subtotal$906.81
Omega Technologies
3/4 x 1 Cleco Side-Grip Clamps25$52.98
3/4 x 1/2 Cleco Side-Grip Clamps5$14.78
Omega Technologies Subtotal$67.76
Stewart Systems
EkoPoxy (1 Gallon, ZC Green)1$444.41
EkoPrime (8 oz, Smoke Gray)1$31.30
EkoEtch (8 oz)1$19.82
EkoClean (8 oz)1$17.34
Stewart Systems Subtotal$512.87
Blain's Farm & Fleet
30K BTU Vent Free Blue Flame Dual Fuel Heater1$314.64
Blain's Subtotal$314.64
Lowe's
First Alert CO Detector1$26.44
MOXIE Terry Towels (48-Pack)1$19.27
MOXIE Trash Bags (13 Gallon, 130-Count)1$19.27
1-Quart Mixing Buckets4$10.94
1-Gallon Paint Mixing Arm1$8.14
2-Gallon Buckets2$6.57
Putty Knives, Stir Sticks-$4.58
Lowe's Subtotal$95.21
Other Sources
Ryobi BS-900 Bandsaw (Facebook Marketplace)1$75.00
3M Scotch-Brite Maroon Hand Pads, 60-Pack (eBay)1$71.66
Bandsaw Blades (bandsawbladecenter.com)2$68.17
SEM Self Etching Primer, 20 oz Aerosol (NAPA)1$46.07
Vent Free Blower Fan Kit (eBay)1$30.79
DYMO LetraTag 100H Label Maker (Target)1$28.04
DYMO Label Tape Refill (eBay)1$16.31
Pneumatic Rivet Gun Jaws (eBay)2$13.27
Casio Calculator (Target)1$8.30
Highlighters, Pencils, Marking Tags (Target)-$9.23
Distilled Water (Jewel-Osco)1$2.45
Other Sources Subtotal$369.29
Tools & Consumables Total$6,474.88

 
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Kit Arrival

The empennage arrived on Thursday, February 26. Pretty quick shipping from Vans. The kit tracker estimated it would ship on 2/12 and I received the ABF Freight pickup email on 2/17. Shipping came to $947.

I was expecting a wooden crate like I've seen in various build videos, but it seems that Vans now uses a cardboard crate with a wooden pallet for this kit. We opened it up and inventoried the whole thing Thursday night. It didn't take as long as I was expecting and we were only missing one bag with some electrical connectors.

First Weekend: Vertical Stabilizer

On Saturday we jumped right in and started on the first section: the vertical stabilizer. I cut, drilled, and fit everything together while the YL deburred. We made a couple of small learning mistakes on the first few pieces and may replace them, still debating. Some of our initial deburring was too aggressive on the rudder mounts (we've already refined that technique) and we accidentally nicked a long piece of metal when deburring it into a different grinding wheel. We've since removed that other wheel, but might replace that piece as well.

Overall our confidence grew as we worked through the vertical stabilizer and I think it's turning out pretty good! Between Saturday and Sunday we both put in around 11 hours each. We ended the weekend with all of the vertical stabilizer parts primed and curing for assembly. I was also able to fit and drill the rudder pieces, which are currently cleco'd in place. Next step is getting those pieces ready for priming as well.

Priming Notes

Speaking of priming, it went okay. Not enough paint was coming out of the gun, even with the flow completely open. It's going to take some fine-tuning, but I'm sure we'll figure it out. If anyone else sprays EkoPoxy, would appreciate any tips you might have!


The kit arrived in the garage! Lift-gate service was included in the shipping.

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All of the pieces inventoried in my office and then moved to the workshop.

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Working on the vertical stabilizer. Also the rudder all cleco'd together.

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The vertical stabilizer pieces primed. Might need some touch-ups, but I'm pretty happy with how it looks.

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And here's the mistake piece. It's the flange side of the lower spar cap. It's about half way down the spar. I'll ask Vans what their thoughts are, but I'll probably just end up buying a new one anyways. It was easy enough to make.

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No building update this time, but a couple of administrative notes.

Replacement Part

We decided to just replace the left lower spar cap for the horizontal stabilizer. For $25.29, it was an easy decision.

Kit Shipping Timeline

I got an email last night from Vans that both the wing and fuselage kits are expected to ship in May. They asked for the final deposit, so I paid that this morning. It officially looks like we have until May to finish the empennage kit, which should be no problem at all. After that we'll have plenty to keep us busy once we get back from our vacation in early May.

All Kits Purchased

We also purchased the powerplant and finishing kits, so now we have all the kits bought. We wanted to make sure there were no unexpected price increases, supply chain issues, or any other factors that might delay the build, so we bought everything as soon as possible.

Interior Customization

We reached out to Abby at Flightline Interiors and we're going to do significant customization to the interior. We'll be able to head up and visit her in WI closer to the finishing kit shipping time to pick out materials and designs!
 
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It's been a while since we've had any updates. Between the basement remodel, family visiting, and flight lessons, the build took a back seat for a few weeks. We're back in full swing now.

Another 6.5 hours for me, 8 hours for the YL on the empennage. At 36.5 combined so far.

Kit Delivery Estimates

Vans provided estimated ship dates for the remaining kits: wings 5/7, fuselage 5/19, finishing kit 8/4, and avionics 9/8. No estimated date for the powerplant yet.

LSRM Course

The YL and I signed up for Joby Aviation's LSRM course. It's about 10 weeks online followed by one week in person in California. Part of the course includes doing an annual inspection on an RV-12 and we also get Rotax maintenance certificates. The in-person portion is in September, which is good timing for us in terms of installing the powerplant.

Paint Scheme

We contracted with Evoke for a paint scheme design. We talked with both Scheme Designers and Evoke and decided on Evoke because every time we saw a painted plane we loved, it ended up being an Evoke scheme. Not sure who will paint it yet. I'd love to go with Evoke for that as well but they are quite expensive.

Build Progress

The replacement left spar cap arrived and I quickly re-drilled the holes. We then deburred all the rudder pieces. The rudder skin took almost an hour and a half on its own as it's too large for the scotchbrite wheel and the burrs were pretty bad. Now that it's warmer out, the YL set up a table outside and did the EkoClean and EkoEtch out there.

I spent a good amount of time researching spray painting and dialing in the paint gun. I built a priming table out of hardware cloth in about 45 minutes and it works great. I've found that 75 PSI on the regulator at the air compressor and 25 PSI with the trigger pulled on the spray gun itself works nicely. Still dialing in the paint and fan controls but I'm a lot happier with the results. I re-primed the vertical stabilizer pieces (after sanding them with scotchbrite) and all of the rudder internals. Definitely an improvement over last time.

We're going to let these dry for two days and rivet things together on Saturday, then start the stabilator on Sunday. I practiced squeeze riveting for the first time and wasn't too happy with the results. I need a lot more practice, but the few I did might have convinced me to buy a squeeze riveter. I'll try some more tomorrow and might head to Aircraft Spruce on Friday to pick one up.

Primer Weight

I weighed two pieces before and after priming to see how much primer I was putting on. One of the rudder ribs went from 21.9g to 23.9g (9.1% increase) and the rudder spar went from 204.2g to 217.2g (6.4% increase). This is a bit more than I was expecting. I was thinking 3% max. Everything I read said to put on more primer and go for a nice glossy coat, but maybe I'll dial it back a bit. Not too worried about the increase on these pieces. I'm still learning!

The new priming table

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Re-drilling the replacement lower spar cap

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Everything after priming. Still adjusting the fan control to prevent overspray. Not worried about the garage floor but will put down plastrc next time. We also primed the seam on the rudder skin where it overlaps. Trying to be as thorough as we can with the primer.

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Another 5 hours each on the empennage.

Mistakes Happen​

We started the dry fit for the stabilator and I messed up a piece (HS-01233, Stabilator Horn Attach Angle). The plans say to be extra cautious drilling. I thought I was cautious enough but apparently not and I elongated the hole. Oops. There's another $27 for a replacement part. The part itself is always cheap, it's the $15 minimum shipping that makes it expensive.

First Rivets​

What's more interesting is we finally started riveting! We ended up buying the squeezer from Aircraft Tool Supply. It came yesterday and after I opened it up, I realized it was missing the ram. We called ATS and they sent us a new one that arrived today. The pneumatic squeezer makes things so much easier, I would not want to squeeze all these by hand.

Vertical Stabilizer Complete​

We riveted all of the vertical stabilizer. Honestly it went pretty well. Getting the skin to fit without forcing it was quite difficult. If I were to do it again I would have done a better dry fit before priming all of the pieces because we had to file even more of the edges down to get the skin to fit without too much pressure. It should be fine though, just not as pretty inside as it could have been.

I also had to grind away part of my pull riveter to get it to work with the wedge tool, so that's tool modification #2 so far. I'm sure there will be more. The YL was definitely concerned when she saw me taking the belt sander to our perfectly good riveter. She's laughing as I'm typing this.

The vertical stabilizer is done! We'll move on to the rudder tomorrow. The YL said that building a plane is just cleco, uncleco, cleco, uncleco, cleco, uncleco and so on. She's not wrong.

The first rivets on the plane

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My riveter modification. It's not pretty, but it works.

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Expect lots of pictures of completed lines of rivets. I think they look cool.

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Before we closed up the vertical stabilizer. I love the green.

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All cleco'ed. Having two pairs of cleco pliers and two people helps a lot.

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All riveted. The YL removed each cleco and I riveted.

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The rest are just pictures of finished rivets and parts. They look cool.

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We've made a lot more progress. It doesn't look like much because we're priming everything, but it's one more bite of the elephant.

Our Process​

My process broken down a little bit. I first read through the instructions for a section and get a general understanding. Then I dry fit everything with clecos and do the required match drilling, cutting, etc. The goal is to have as much of the piece assembled with clecos as possible so any part modifications are completed. Then we make sure everything is labeled for re-assembly. Next we disassemble everything and deburr it all. Then clean with EkoClean, etch with EkoEtch, and prime. Let cure at least 48 hours. Then go back through the instructions and do the riveting. It feels like double the work, but there is one advantage. I've found a few mistakes after clecoing (and after where I was supposed to rivet) and since it's cleco'd, I can just fix the mistake!

Rudder​

I started riveting the rudder, but I made a mistake. I didn't like the way the rib connected to the rudder horn (I didn't use enough clecos during the riveting so there was a gap) and after drilling it out, I wasn't happy with the piece anymore, so I ordered a replacement. Finishing the rudder shouldn't take long once it arrives.

Stabilator​

I dry fit a majority of the stabilator. It's ready for deburring and priming now. I have to admit, I made a brutal mistake on the stabilator. When I was fluting the ribs, I was using too big of a fluter and ended up cracking four of the ribs. So those all needed to be replaced. Lesson learned. It was a careless mistake. But at least I haven't made the same mistake twice yet.

Tailcone​

We also dry fit a majority of the tailcone. This one was fun because it really looks like an airplane. Everything fits and is match drilled, so soon it will be disassembled and prepped for priming. I'm going to try to get more of the ASTs and stabilator done first so we don't have too many pieces in the queue.

Priming​

Tonight we did a bunch of deburring and primed all the pieces for the ASTs and some of the stabilator. It's not everything, but as I said before, it's a bite of the elephant. That saying is going to come in handy for a project this big.

Timeline​

We have a soft deadline to finish the empennage. We're going on vacation in May and want to be done with it before we leave because when we get back we should have the fuselage and wings waiting for us. I think we'll be able to get this done in the next month.

Dry fitting the tailcone. It definitely wouldn't fit out of the basement assembled. I'll have to do final assembly in the garage.
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A bunch of pieces ready for cleaning, etching, and priming.

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Weighing and mixing the EkoPoxy.

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More pieces primed.

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It's been over a month since the last update. Not too much has changed on the build, but a lot has happened.

Flight Training

We spent 11 days in Carson City, NV at Sport Aviation Center with Paul Hamilton working on our sport pilot licenses in Sling 2s. I completed my first solo flight which was obviously exciting! The YL and I trained over 20 hours during the course of almost two weeks. Then we went on our pre-planned vacation to Australia where we did 22,000 miles and 40+ hours of flying, but obviously as passengers.

Wing Kit Delivery

We got back on Memorial Day and took delivery of the wing kit on May 26th.

Stabilator Troubles

Back in late April I started riveting the stabilator but ended up having a lot of trouble with the rivets for the upper and lower horn doublers. The body of the squeezer was in the way, making it really difficult to get a clean set on the rivets, and the hand squeezer doesn't work well on the 4-6 rivets. I tried to make it work but the rivets didn't set properly, and when I drilled them out I enlarged the holes and wasn't happy with the whole area. So I had to replace the doublers, horns, and all the rivets. That caused quite a bit of stress and frustration.

I ordered all the replacement pieces (HS-01233, WD-01207-1-PC, WD-01208-1-PC, and 24x RBSPQ-5-2). This is the second HS-01233 replacement I've needed now. Future builders, pay attention to this part and don't repeat my mistake. Vans sent the order out but it turns out they sent two 01208-1 pieces (one incorrectly labeled as the other part) so I had to wait further for them to send the correct one.

So that's where we stood. A partially assembled stabilator waiting on parts and a dry-fitted, in-the-deburring-process tailcone. The Carson City training was a bit last minute and the Australia trip was pre-planned, so between the two we were gone for most of April and May with little progress on the build.

Back in the Shop

This weekend we're back in full swing. We re-drilled the doublers very, very carefully. Both of us were quite nervous. Then we needed to prime them, and since we were priming we got a couple of tailcone pieces ready as well for the batch. Then we finished riveting the assembly of the stabilator. Done!

Tip: Stabilator Horn Doubler Rivets

The body of the pneumatic squeezer gets in the way when setting the rivets on the horn doublers. It does work, but it's difficult and the rivet setting isn't perfect. Due to clearance I had to set the top and bottom rivets from one direction and the two middle rivets from the other, two from the right and two from the left. It looks a bit inconsistent but it's functional. Take your time on these and be prepared for it to be stressful.

What's Next

Now that the stabilator is done we're on to assembling the tailcone in the garage because there's no way I could get it out of the basement assembled. For the wings I'll probably assemble them in the basement but take them out when the contractor replaces the window since I think they'll fit out the window but definitely not up the stairs.

Pieces of the trailcone after being etched outside
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More pieces primed
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The horn doubler which I'm happy is finally done
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Inside the stabilator
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The almost completed stabilator
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Not sure where you got your information on primer but you are using WAAAAAAY too much. Just one light coat to cover is sufficient.
This airplane is going to be heavy!
 
Not sure where you got your information on primer but you are using WAAAAAAY too much. Just one light coat to cover is sufficient.
This airplane is going to be heavy!

I know, I've been working on applying less each time. It's still a learning process.
 
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