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  #711  
Old 01-02-2013, 06:25 PM
Mike S's Avatar
Mike S Mike S is offline
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Join Date: Sep 2005
Location: Dayton Airpark, NV A34
Posts: 16,096
Default

Quote:
Originally Posted by Rupester View Post
- peel ply after each glass layer (that's huge in reducing the sanding time)
As I read this, it appears you did multiple layups for the fairing??? Let each one cure, then added another???

I have done a couple of RV 10 windshields, and we just do all ten or so plys at the same time, then let the whole thing cure.

Yes, peel ply is good to smooth the final layer too.
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Mike Starkey
VAF 909

Rv-10, N210LM.

Flying as of 12/4/2010

Phase 1 done, 2/4/2011

Sold after 240+ wonderful hours of flight.

"Flying the airplane is more important than radioing your plight to a person on the ground incapable of understanding or doing anything about it."
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  #712  
Old 01-02-2013, 08:05 PM
Rupester Rupester is offline
 
Join Date: Dec 2005
Location: Mahomet, Illinois
Posts: 2,195
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My wording could have been better. I did all the FG layers at one time, but had succeeding layers of micro to eliminate "undulations" in the surface. I used peel-ply to reduce sanding required on some of the micro applications ... Especially around the sides of the layup area.
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Terry Ruprecht
RV-9A Tip-up; IO-320 D2A
S. James cowl/plenum
(Dues paid thru Nov '18)
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  #713  
Old 01-03-2013, 12:10 PM
Loman Loman is offline
 
Join Date: Feb 2008
Location: Dublin, Ireland
Posts: 180
Default Smoothing with a spoon on top of peel ply

My canopy was bonded on with Sikaflex. After that, I sanded the plexi and used 409 Microfiller to create the basic shape of the fillet.

On a whim, I put peel ply directly on to the 'un-shaped' microfiller and used a big spoon on top of the peel ply to push the microfiller along and create the shape, working from the centre outwards. It was like squeezing toothpaste in a tube. Where the fairing is less concave around the 'notch', I switched to a cheap nylon tiling 'squeegee' that was lying around.



When it set and the peel ply was removed, the resulting surface was perfect for the main FG cloth lay-ups, which consisted of the standard 9 layers, each one stepping out 1/8inch on each side working up from 1/2 to 2 1/2 inch wide strips. When all of these were applied (together), I put on fresh peel ply and used my spoon to do some more smoothing. As the profile was less concave at this stage, I simply used a bigger spoon.

Whether or not the spoon was responsible, I needed very little sanding and almost no micro to perfect the shape. The final finish was achieved using DanH's pinhole filling method (3/4 coats of pure epoxy applied with a squeegee).
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Loman O'Byrne
RV9 TU. O-320-E2D. Engine hung, working on FWF, Arklow, Ireland
=VAF= dues paid through Dec 2021
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  #714  
Old 01-21-2013, 04:33 PM
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airguy airguy is online now
 
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,590
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Getting closer - hung the engine mount and I'm starting to work on the engine a bit. Not ready to hang the engine yet, but getting close. I pulled it out of the crate and was checking it out yesterday prior to ordering some parts for it. This is a 105TTSN IO360B1B with LS1 EI and Bendix injection, I'm going to put the Superior horizontal induction sump on it, keep the Bendix injection, mount an SD8 in place of the vacuum pump and use a Jihostroj governor for the WW200RV prop.

Here's a shot of the engine with one of my hangar-helpers looking on.

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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 900 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #715  
Old 01-21-2013, 04:57 PM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,858
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Greg, Your build is looking great. I am getting ready to hand my engine too. I have been considering doing a couple layers of Fiberfrax and a second SS plate for fire protection - heat transfer. Maybe overkill and I am just considering it - not sold on it yet. I don't like the foil-to easy to damage and with a FP, an extra 5-7 lbs is not an issue for me.

Im not sure what the SD8 is to replace the vacuum pump is. I will have to look that up. Im still working on what I want for the panel. I see wires like crazy coming out of your panel area. Isn't the wiring fun!
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Williamston MI
O-320 D2A
Flying N376E
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  #716  
Old 01-21-2013, 05:07 PM
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airguy airguy is online now
 
Join Date: Oct 2006
Location: Garden City, Tx
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Quote:
Originally Posted by rockwoodrv9 View Post
Greg, Your build is looking great. I am getting ready to hand my engine too. I have been considering doing a couple layers of Fiberfrax and a second SS plate for fire protection - heat transfer. Maybe overkill and I am just considering it - not sold on it yet. I don't like the foil-to easy to damage and with a FP, an extra 5-7 lbs is not an issue for me.

Im not sure what the SD8 is to replace the vacuum pump is. I will have to look that up. Im still working on what I want for the panel. I see wires like crazy coming out of your panel area. Isn't the wiring fun!
The SD8 is a standby alternator, gives 8 amps nominal. I'm doing away with the engine-driven fuel pump and using dual electric pumps only, so my engine is electrically-dependent for fuel - so I am putting in a second alternator capable of pulling at least one fuel pump. If I lose the main alternator I've got Dynon screens with their backup batteries, so I'll just kill my avionics master to shed that load, let the Dynons go on their internal backup battery, and the SD8 keeps the fuel pumps going until I can get to a good spot to land. If the SD8 dies the main battery is still good for another 45 minutes. With both Dynon and MGL EFIS units I already have redundant flight instruments with gyro's, so I don't need the vacuum system.
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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 900 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.

Last edited by airguy : 01-21-2013 at 05:09 PM.
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  #717  
Old 01-21-2013, 06:39 PM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,858
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Thanks for the explanation. That sounds like a good way to go. I have considered adding FI to my engine, but not even sure where to start. I will probably just wait and think about it after I am flying.
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Williamston MI
O-320 D2A
Flying N376E
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  #718  
Old 02-11-2013, 09:20 AM
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airguy airguy is online now
 
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Location: Garden City, Tx
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I had no intention of working on my panel just yet - there are a thousand and one things that need to get done and that is just one of them - but this afternoon I picked up the actual panel piece and didn't have a good grip on it, it twisted and started to fall. I managed to catch it before it hit the ground, but in the process it took off a pretty good-sized chunk of skin on the left thumb.

After I got the bleeding stopped and the blood cleaned up and the thumb mostly bandaged up, I decided fair was fair - if the panel was going to cut me, then I was going to cut it back. So I did...

First two instruments are in, my backup MGL XTreme EFIS and my PMA audio panel. Final install will include dual 10" Skyviews and a 430W, as well as the Dynon comm radio (panel space reserved for it, whenever they finally release it).

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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 900 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.

Last edited by airguy : 02-11-2013 at 09:23 AM.
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  #719  
Old 02-11-2013, 09:59 AM
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pmccoy pmccoy is offline
 
Join Date: Jan 2006
Location: Orange County CA
Posts: 646
Default Weight & Balance

Ok, things are really starting to move along. This photo has my plane up on scales. Yep, I am a fat boy! The scales came in at 1,140 lbs. That creates a Center of Gravity (CG) of 77.51. For a Vans RV9A, that CG number works out just fine. At my current weight I can carry myself, fuel fuel and just under 200 more pounds in the 9A. Yes, 'I' am on a diet. That will be the best way to carry more load. Shed some pounds off the belly, and fly with additional weight in the plane. I am now walking 10,000 steps a day and watching what I eat. Five pounds down so far!

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Peter McCoy
RV9A N35PM S/N:91335
First Flight: April 2013
Hobbs: 400 hours after Oshkosh 2017
www.myrv9.com
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  #720  
Old 02-12-2013, 07:57 AM
Bill Palmer Bill Palmer is offline
 
Join Date: Apr 2006
Location: Arizona
Posts: 387
Default Lookin' Good!

Congratulations, Peter! You've motivated Rocky and I to build harder and faster! Also, it appears that I'll need to lose some weight, too!
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