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Search: Posts Made By: David Z
Forum: RV General Discussion/News 06-19-2021, 05:59 PM
Replies: 3
Views: 223
Posted By David Z
Generally I see stuff go for about 50% of what it...

Generally I see stuff go for about 50% of what it is worth brand new. Not sure why this is. The seller is happy because it is gone and they don't have to pay shipping to return the item to Van's (or...
Forum: Safety 06-16-2021, 07:04 PM
Replies: 21
Views: 1,086
Posted By David Z
Every plane I've flown with feathering props had...

Every plane I've flown with feathering props had a pretty obvious gate or detent to overcome before feathering occurred. If rigged properly, this prevents inadvertent feathering. I've never heard of...
Forum: Safety 06-16-2021, 11:58 AM
Replies: 21
Views: 1,086
Posted By David Z
Suppose I should have continued my statement. The...

Suppose I should have continued my statement. The governor will be able to control the prop with engine rotation WITHIN the governing range of the system. Can't go more coarse than the coarse pitch...
Forum: RV Building Tips/Techniques 06-16-2021, 05:28 AM
Replies: 5
Views: 537
Posted By David Z
I have a dozen black clecos and wish I had more....

I have a dozen black clecos and wish I had more. 18 or 20 would suffice.

They're good for #8 screw holes that are found on many interior panels and covers throughout the fuselage.
Forum: Safety 06-16-2021, 05:25 AM
Replies: 21
Views: 1,086
Posted By David Z
As long as the engine is turning, the oil pump...

As long as the engine is turning, the oil pump and governor will be able to control a hydraulically actuated prop. This goes for windmilling too as the pumps and accessories don't know what the...
Forum: Primers 06-14-2021, 05:40 AM
Replies: 10
Views: 790
Posted By David Z
What happens if you scuff in circles?

What happens if you scuff in circles?
Forum: Canada 06-14-2021, 05:36 AM
Replies: 22
Views: 18,388
Posted By David Z
USPS/Canada Post shipping doesn't charge the $400...

USPS/Canada Post shipping doesn't charge the $400 handling fee. I know your pain. I bought a $60 item off the VAF classifieds. Shipping was $15, picked it up and paid the Canadian tax then 6 weeks...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-14-2021, 05:13 AM
Replies: 11
Views: 1,686
Posted By David Z
Eyeball Swivel Vents

Hard to tell from the picture. Ate the eyeball vents the plastic or aluminum ones? I'm interested if they're aluminum.
Forum: Instrument Flight Rules 06-10-2021, 10:02 PM
Replies: 7
Views: 874
Posted By David Z
In the work plane (DH8) I have the small scrap of...

In the work plane (DH8) I have the small scrap of paper clipped to the yoke and write things down. Notes turn into chicken scratch, but as long as I can read it, that's okay. In general, my mind...
Forum: RV-14 06-10-2021, 09:43 PM
Replies: 27
Views: 3,805
Posted By David Z
I heard the same thing about canopies when I...

I heard the same thing about canopies when I asked about the RV8. UV is standard.

Are alternators part of the Finish Kit? I'd double check that, could be FWF. Either way, the recent general...
Forum: RV Building Tips/Techniques 06-10-2021, 04:32 AM
Replies: 12
Views: 565
Posted By David Z
How did the Air Tractor and Agwagon keep fuel in...

How did the Air Tractor and Agwagon keep fuel in the header tank? Were the fuel tanks still high enough to gravity feed the header?
Forum: RV-8/8A 06-09-2021, 07:56 PM
Replies: 882
Views: 1,158,653
Posted By David Z
Were you going through my doodles of potential...

Were you going through my doodles of potential paint schemes for my plane? Looks great, clean and simple. I like them.
Forum: RV-14 06-09-2021, 07:52 PM
Replies: 33
Views: 3,034
Posted By David Z
When I flew Navajos, I figured they were around...

When I flew Navajos, I figured they were around $500-600/hr. We flew them for a charter operator, so utilization was pretty high (~1000hrs/yr) and fixed costs spread out dramatically. I'd believe...
Forum: RV Building Tips/Techniques 06-07-2021, 07:36 PM
Replies: 16
Views: 965
Posted By David Z
That looks pretty slick. I've been doing the same...

That looks pretty slick. I've been doing the same thing for the 1/8" AN470s, factory heads CAREFULLY placed in the cup of the die. Not the quickest as I'm constantly checking placement after every...
Forum: RV-8/8A 06-06-2021, 06:40 PM
Replies: 9
Views: 537
Posted By David Z
The rudder pedals won't be too terribly...

The rudder pedals won't be too terribly difficult. Everything is fairly accessible.

The throttle is more invasive surgery. I'm working on mine at present and that's with the fuselage partially...
Forum: RV-14 06-06-2021, 06:35 PM
Replies: 33
Views: 3,034
Posted By David Z
This is almost exactly what I do. Put $1000/month...

This is almost exactly what I do. Put $1000/month into the "airplane fund". Mess up a part and need to re-order from Vans? That comes out of "airplane fund". Coming time to order the Finish Kit? Lets...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-06-2021, 06:22 PM
Replies: 18
Views: 1,118
Posted By David Z
That's a pretty slick set-up and solution. The...

That's a pretty slick set-up and solution. The threads we all keep discussing are also tapped by the builder. So it's quite realistic to deviate from the plans and use a different hole size/tap....
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-05-2021, 07:05 PM
Replies: 18
Views: 1,118
Posted By David Z
I'm pretty sure I have an extra set. But as...

I'm pretty sure I have an extra set. But as other's have pointed out, you can buy a set at the local hardware store's "aviation section". Any eyebolt with 3/8-16 threads will work. Shipping alone...
Forum: RV General Discussion/News 06-05-2021, 06:56 PM
Replies: 81
Views: 14,466
Posted By David Z
Not just octane, but more-so vapour pressure....

Not just octane, but more-so vapour pressure. Mogas boils at a much lower temperature. Takeoff and a balked landing cause the highest fuel flow, highest fuel line suction, thus highest chance of...
Forum: Safety 06-04-2021, 08:46 PM
Replies: 57
Views: 5,149
Posted By David Z
There's also lots of talk about how great RVs are...

There's also lots of talk about how great RVs are on short runways. Long runways provide more option to land straight ahead, or to make it back to some part of the airfield. The thing about long...
Forum: VAF Classifieds (posts in here deleted after 30 days) 06-04-2021, 08:35 PM
Replies: 6
Views: 1,741
Posted By David Z
Never heard of an over-powered airplane. Way too...

Never heard of an over-powered airplane. Way too power much is just about right. Also means they're a lot more to hang onto when the go-fast lever is forward, easy to overspeed the airframe. More...
Forum: RV General Discussion/News 06-04-2021, 08:56 AM
Replies: 33
Views: 5,352
Posted By David Z
I'm surprised nobody has mentioned reading the...

I'm surprised nobody has mentioned reading the label on the truck. People make honest mistakes, and sometimes jumping in the Jet A truck that usually fuels helicopters before filling an avgas plane...
Forum: RV-14 06-03-2021, 04:12 AM
Replies: 19
Views: 2,628
Posted By David Z
Now THAT would be a rocket. However a baby PT-6...

Now THAT would be a rocket. However a baby PT-6 burns 15gph at idle and full beans is about 75gph. On any RV airframe, the engine will cruise just off idle, so be somewhere in the middle, maybe...
Forum: RV General Discussion/News 06-03-2021, 03:57 AM
Replies: 51
Views: 4,846
Posted By David Z
Define Airworthy

While VAF is a great community, it's not the written airworthiness standard. For that there is the Van's Builder's manual, section 5 has a lot of good info. Next there's AC 43.13 and a couple quick...
Forum: RV-8/8A 06-02-2021, 07:08 PM
Replies: 2
Views: 347
Posted By David Z
Not an RV, but I helped an old boss install an...

Not an RV, but I helped an old boss install an R-1340 on a Norseman. We used ratchet straps to pull, squeeze and twist the engine mount to line up with the holes. Wasn't pretty, but if that old thing...
Forum: RV Building Tips/Techniques 06-02-2021, 06:57 PM
Replies: 17
Views: 2,021
Posted By David Z
I have a similar one. "you can do it fast the...

I have a similar one. "you can do it fast the first time and right the second time, or you can take your time and do it right the first time"
Forum: RV Building Tips/Techniques 06-02-2021, 06:53 PM
Replies: 13
Views: 829
Posted By David Z
I found my tube of torque seal hard as a rock....

I found my tube of torque seal hard as a rock. Since then, I've been torquing the nut, then drawing a red line with sharpie from the bolt end down onto the part. Once my torque seal finally gets...
Forum: RV General Discussion/News 06-01-2021, 04:12 AM
Replies: 39
Views: 4,162
Posted By David Z
We need a fuel that keeps the TIO-540 happy at...

We need a fuel that keeps the TIO-540 happy at 49inHg, the 10:1 compression performance engines as well as the not so crazy engines that can burn mogas. Currently 100LL is that fuel. It has high...
Forum: RV-8/8A 05-31-2021, 07:29 PM
Replies: 20
Views: 1,628
Posted By David Z
I've got similar priorities as well. Once...

I've got similar priorities as well. Once priority 1 satisfied (safety), weight and cost are often contradictory. I've got a rough figure in my mind of $50/lb for weight savings. Aluminum landing...
Forum: RV-9/9A 05-30-2021, 09:46 AM
Replies: 67
Views: 5,637
Posted By David Z
Not quite as big as your cargo pod idea, they did...

Not quite as big as your cargo pod idea, they did put a fuel pod on the belly of an RV8. This is the plane that flew around the world north-south, crossing both...
Forum: RV-8/8A 05-30-2021, 06:38 AM
Replies: 14
Views: 1,006
Posted By David Z
Look into the tailwheel assembly as well. Flyboys...

Look into the tailwheel assembly as well. Flyboys Accessories has some very nice options for the tailwheel. If you do delete the Van's tailwheel assembly, don't forget to re-add the tail spring mount...
Forum: RV Building Tips/Techniques 05-30-2021, 06:28 AM
Replies: 16
Views: 965
Posted By David Z
I have a fairly large steel plate. Maybe 1x2...

I have a fairly large steel plate. Maybe 1x2 feet. The problem is its 1/4" thick, so flexes ever do slightly. Doesn't cause any issues with the plane, but the rivets don't drive very quickly. I'd...
Forum: Alternative Engines 05-29-2021, 05:47 AM
Replies: 25
Views: 2,916
Posted By David Z
That will be interesting for bigger planes. For...

That will be interesting for bigger planes. For us, not so much, since max takeoff and max landing weight are the same. A circuit burns 5 or 10 lbs of fuel, so hardly noticeable. The bigger problem...
Forum: Alternative Engines 05-28-2021, 08:09 PM
Replies: 25
Views: 2,916
Posted By David Z
I'd jump all over the electric bandwagon. Just...

I'd jump all over the electric bandwagon. Just need comparable range and capability. No more exhaust staining or leaks, no more oil changes. My favourite part is no more mess from dirty slimy stinky...
Forum: RV General Discussion/News 05-28-2021, 07:43 PM
Replies: 39
Views: 4,162
Posted By David Z
I've heard somewhere, but can't find the...

I've heard somewhere, but can't find the reference. 100LL without the lead is mind 90s for octane rating. Good enough for most of us, which is the problem. Not good enough for everybody. I wish it...
Forum: Primers 05-27-2021, 02:00 PM
Replies: 10
Views: 790
Posted By David Z
I use Alimiprep for everything. Apply it with...

I use Alimiprep for everything. Apply it with scotchbrite pads, rinse off and look for the clean water sheeting.

Next, I bought a gallon of Prekote. We'll see how that goes. Going to do some more...
Forum: Instrument Flight Rules 05-25-2021, 09:23 PM
Replies: 18
Views: 1,104
Posted By David Z
What speed do you carry over the threshold when...

What speed do you carry over the threshold when VFR? Probably around 1.3 x Vs (or Vso). The approach speed should be a speed that you can easily and comfortably transition from after breaking out at...
Forum: RV General Discussion/News 05-25-2021, 11:15 AM
Replies: 20
Views: 1,648
Posted By David Z
I'm in this camp. There's so many variables too,...

I'm in this camp.

There's so many variables too, that there's no one correct answer. In an extremely dry climate and only fly locally will need significantly less corrosion protection than a heavy...
Forum: RV-14 05-23-2021, 09:16 AM
Replies: 23
Views: 1,696
Posted By David Z
I've used small car warmers with reasonable...

I've used small car warmers with reasonable success on the TIO-540 (even did it on a R-985 once). Wrap the entire cowling in a blanket, cowl plugs for the cooling air intake and exit. Engine seemed...
Forum: RV Building Tips/Techniques 05-23-2021, 08:58 AM
Replies: 18
Views: 772
Posted By David Z
Cardboard

Cardboard. There's probably several boxes sitting around your house/workshop/hangar. Cut a small tab and shove it under the short leg. Might take 2 pieces. Certaintly a lot faster than driving to the...
Forum: Electrical Systems 05-20-2021, 06:25 AM
Replies: 11
Views: 924
Posted By David Z
I know of a situation where both alternators...

I know of a situation where both alternators failed. It was belt driven alternators on a twin, one on each engine. The first belt broke, taking that alternator. The remaining alternator's load...
Forum: Electrical Systems 05-19-2021, 08:43 PM
Replies: 11
Views: 924
Posted By David Z
Copy bigger airplanes with decent load shedding...

Copy bigger airplanes with decent load shedding designs.

Beechcraft has a triple fed bus system. In essence there's 3 primary busses. A left main bus, right main bus and essential bus. Each main bus...
Forum: RV General Discussion/News 05-18-2021, 07:39 PM
Replies: 8
Views: 757
Posted By David Z
I do a combination of the two tricks. Sometimes...

I do a combination of the two tricks. Sometimes the google trick of site:www.vansairforce.net works best. Sometimes I have better luck with the built-in search feature.
Forum: Safety 05-18-2021, 01:58 PM
Replies: 8
Views: 1,124
Posted By David Z
Looking a bit more into this, I don't see a...

Looking a bit more into this, I don't see a Canadian NOTAM. Don't take this for legal advice, I may have missed the NOTAM too. A Canadian registered aircraft flying in Canadian airspace over Canada...
Forum: Primers 05-18-2021, 01:44 PM
Replies: 9
Views: 669
Posted By David Z
I hang parts from safety wire as well.

I hang parts from safety wire as well.
Forum: Safety 05-18-2021, 01:33 PM
Replies: 8
Views: 1,124
Posted By David Z
I'd look for a complimentary Canadian NOTAM. A...

I'd look for a complimentary Canadian NOTAM. A foreign (US or otherwise) military aircraft being even remotely aggressive towards a Canadian civil aircraft wouldn't go over very well.
Forum: RV-8/8A 05-16-2021, 12:54 PM
Replies: 13
Views: 940
Posted By David Z
Do the ground adjustable pedals go further...

Do the ground adjustable pedals go further forward than the in-flight adjustable pedals?
Forum: RV-8/8A 05-13-2021, 07:51 PM
Replies: 13
Views: 940
Posted By David Z
GA pedals weight 54oz

My ground adjustable rudder pedals weigh 54oz. That's the whole kit as it comes from Vans, just took the bag of parts and set it on the scale.
Forum: Primers 05-13-2021, 07:43 PM
Replies: 7
Views: 1,518
Posted By David Z
I understand this to mean that I should use...

I understand this to mean that I should use Alumiprep to clean, followed by preKote as the adhesion promoter? Alodine instead of preKote would be additional corrosion protection plus adhesion...
Forum: Canada 05-13-2021, 07:31 PM
Replies: 7
Views: 944
Posted By David Z
I've also noticed a problem with stuff being back...

I've also noticed a problem with stuff being back ordered. Often it's more specific and odd things. Still comes fairly quick, so can't complain too much.
Forum: RV-8/8A 05-13-2021, 07:13 AM
Replies: 13
Views: 940
Posted By David Z
Installation of the ground adjustable pedals will...

Installation of the ground adjustable pedals will be more difficult on the QB fuselage. The kit and instructions are really set up for the in-flight adjustable pedals. Holes are pre-punched, just...
Forum: RV-14 05-13-2021, 06:50 AM
Replies: 35
Views: 3,136
Posted By David Z
I'm surprised the autopilot will fly the...

I'm surprised the autopilot will fly the go-around. Of the certified autopilots I've flown, the go-around button disconnects the autopilot as well.
Forum: Primers 05-12-2021, 10:42 PM
Replies: 7
Views: 1,518
Posted By David Z
Reviving a somewhat old thread. I've been using...

Reviving a somewhat old thread.

I've been using Sherwin Williams fancy epoxy primer (got a good deal from work). Prep recommendation is Alumiprep and Alodine. Due to toxicity, I've been skipping the...
Forum: Electronic Ignition Systems 05-10-2021, 09:14 PM
Replies: 39
Views: 2,901
Posted By David Z
I'm building a VFR plane, but many people want...

I'm building a VFR plane, but many people want IFR capability. As much as people get into inadvertent icing, people will also get struck by lightning. Not sure there's any RVs with weather radar, and...
Forum: Traditional Aircraft Engines 05-09-2021, 04:30 PM
Replies: 1
Views: 459
Posted By David Z
Reduced Throttle

There's a concept I've been bouncing around in my head as a thought experiment. Not for or against the idea, just looking to explore the concept with those smarter than myself.

Old piston engine...
Forum: Electronic Ignition Systems 05-09-2021, 03:12 PM
Replies: 39
Views: 2,901
Posted By David Z
All this talk of lightening taking out an...

All this talk of lightening taking out an electronic ignition has me scratching my head. How do airliners harden their electronic systems against a lightening strike? Electronic engine control...
Forum: RV-10 05-08-2021, 09:05 PM
Replies: 6
Views: 907
Posted By David Z
Flyboys Accessories sells a bunch of really nice...

Flyboys Accessories sells a bunch of really nice throttle quadrants with throttle/prop options available. Can't speak to dimensions though.
Forum: Alternative Engines 05-08-2021, 08:55 PM
Replies: 8
Views: 999
Posted By David Z
What's wrong with a diesel, or Jet-A piston...

What's wrong with a diesel, or Jet-A piston engine operating at -55*c? Nobody would expect it to start if cold soaked. However if it's already running, kept at proper operating temperature and has...
Forum: RV-14 05-08-2021, 09:28 AM
Replies: 35
Views: 3,136
Posted By David Z
I skip the underlined part, at least until the...

I skip the underlined part, at least until the plane is more stabilized in the climb, or even level at pattern altitude. The folks in the tower can see the go-around most days. If the weather is bad,...
Forum: Primers 05-07-2021, 06:11 AM
Replies: 7
Views: 703
Posted By David Z
Aircraft Spruce sells various primers from PTI in...

Aircraft Spruce sells various primers from PTI in rattle cans. While there is Zinc Chromate available, I'd stay away from it and test their Zinc Oxide or Phosphate primer.

I used it on my wings and...
Forum: Safety 05-06-2021, 07:30 PM
Replies: 56
Views: 9,472
Posted By David Z
Lets not loose sight on the bigger risk here. A...

Lets not loose sight on the bigger risk here. A fire, especially in flight, is potentially fatal. Fire will also ruin the airframe. I'd rather blow off an ABC extinguisher and scrap the airframe than...
Forum: RV-8/8A 05-04-2021, 05:18 PM
Replies: 3
Views: 505
Posted By David Z
That's fantastic! Should be able to find...

That's fantastic! Should be able to find everything I need. Thanks
Forum: RV-8/8A 05-04-2021, 04:33 PM
Replies: 3
Views: 505
Posted By David Z
Rear Seat Throttle Parts

I have the deluxe DJM throttle quadrants from Flyboy Accessories. Both front and rear quadrants. Problem now is I'm trying to figure out how to install it into the fuselage as it's being built. I did...
Forum: Reviews 05-04-2021, 06:46 AM
Replies: 3
Views: 931
Posted By David Z
I've got about 4500 hours on my Zulu.2 headset....

I've got about 4500 hours on my Zulu.2 headset. Absolutely fantastic. Sure there's been wear and tear, but thats expected. Lightspeed rebuilt it for free at about 4 years old under warranty. Then...
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