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 on: Today at 04:43:19 AM 
Started by Matt Piatkowski - Last post by Matt Piatkowski
I got a roll of Doculam foil from the Oregon Laminations Company ( The material is identified as 1C01.5G12x500, has 1.5 mil. thickness and is fully covered on one side with the heat activated glue. One side of the foil is glossy, the other dull. The dull side is covered with glue.

I have ironed the 12" long piece of Doculam to the medium density 1/4" thick 4" wide balsa plank using the maximum heat from my Hangar9 iron (280-290 deg.F). I had to use such high heat as, according to the Oregon Laminations Company, the glue activation temperature is~270 deg.F.

Material covered the unprepared balsa surface well, is smooth and there are no wrinkles. Peel test showed that the adherence is satisfactory but weaker than that for Ultracote that I normally use for wings.

Material shrinks very little, though, and the ironing must be careful and gradual in order not to leave larger wrinkles.

Then, I run the shrink test. I made a rectangular 5x6" cutout in larger piece of paper-foam-paper board (PFP, 1/5" thick foam board bought in Dollar Store) and attached the piece of Doculam to the edges of this cutout. I purposely created small (~1/32" high) diagonal wrinkles while attaching Doculam to check if they disappear when heated. They did disappear but slowly and only after six iron passes. The temperature of the iron was again ~280-290 deg.F.

The Doculam "window" created is drum tight and looks good but the foam core of the PFP was partially melted by heat so the PFP surface is sort of wavy.

I was told that, after roughing up the Doculam exposed surface with #200 sand paper, this surface can be primed and then painted with "everything". I do not know, though, what primer has to be used to avoid peeling, cracking etc.

I would be grateful for more information about Doculam use on balsa, covering the open cells and painting.

1. Can the heat gun be used on Doculam to achieve higher shrinkage and better "accidental wrinkles removal"?
2. Will Doculam stay safely attached to the unprepared balsa after, say, two years? Some say the glue dries with time and Doculam will start peeling.
3. How to paint it and with what?
I am considering to use Doculam on the full size (62" total span) wing with six open cells per side. Cells size: ~5"x~3".
I will not even try to cover the hollowed soft balsa wing tips with Doculam as I do not think this material will cover properly the surface with 3D curvature.
Or maybe there is some neat trick to do it?



 on: Today at 04:33:52 AM 
Started by Ty Marcucci - Last post by CL-flyer
Thank you, I'm taking notes. Have you ever done an electric Ares?

 on: Today at 12:58:08 AM 
Started by Gerald Schamp - Last post by Gerald Schamp
Was wondering if this design is on Nostalgia 30 list yet?

 on: Today at 12:52:18 AM 
Started by Don Hutchinson AMA5402 - Last post by Gerald Schamp
I have most of Don's plans and they are great. I've built the T-34C and its a great plane, easy to build. Next will be the BT-13 and then the T-28. Have part cut for the Corsair. Don made me a bellcrank for it, the rest should be easy enough. Thanks again Don.

 on: Yesterday at 11:26:37 PM 
Started by Tim Wescott - Last post by Tim Wescott
Hey  I blew right past the ESC question and went right to making a Quad do the pattern,, and I aint no Hick from the stix,, just cause I live in farm land,,

Given how few trees there are out that way maybe I should have said "stick".

 on: Yesterday at 11:05:25 PM 
Started by Don Hutchinson AMA5402 - Last post by wwwarbird


 on: Yesterday at 11:02:50 PM 
Started by Mike Griffin - Last post by Mike Griffin
My mistake Doug.  Force of habit.  I will change it.


 on: Yesterday at 10:20:53 PM 
Started by Dane Martin - Last post by Dane Martin
When I posted this, I guessed at a price. They aren't very expensive new. So I would like to drop the price, because I'd like it to go to someone who will use it.
45$ and I'll cover shipping.

 on: Yesterday at 10:05:20 PM 
Started by Don Hutchinson AMA5402 - Last post by Dane Martin
Don's Warbirds

1   North American T-6G / SNJ-7 Texan
2   Douglas SBD Dauntless
3   Curtiss P-40C Tomahawk & P-40Q Warhawk
4   Grumman F6F Hellcat
5   Lockheed P-38J Lightning
6   Chance Vought F4U-1 Corsair & Goodyear F2G Race 57  
7   Stearman PT-17 / N2S-3 Kaydet/Yellow Peril
8   Beechcraft D17 Staggerwing
9   Douglas A-1H Skyraider
10   Grumman TBF Avenger
11   Republic P-47 Thunderbolt
12   North American P-51 Mustang
13   North American P-51H Mustang
14   Piper J-3 Cub
15   Beechcraft T-34C Mentor
16   F-86
18   Spitfire
19   Helldiver
20   Navion
21   Vultee BT-13
22   Chipmunk
23   T-28

A complete list can be obtained by emailing Don and asking for it. But for now this is what I found.

John McFayden

Thanks for posting this list. I didn't know what Don had going on.  I emailed Don and he promptly replied with a set of plans. My dream plane. The piper cub! January build scheduled, with a four stroke.
Thanks John!

 on: Yesterday at 09:55:57 PM 
Started by RC Storick - Last post by Jared Hays
The Slo-mo is cool, really shows where improvements can be made.  I may have to setup my gopro on a tri pod and try that.

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