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Old May 19, 2014, 11:45 AM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
Joined Feb 2006
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Build Log
Fokker D~VII 48" SPAN w/Video

Here is another Fokker on the building table bigger than the others I have put together. All input gladly accepted. This is a Bau der Fokker . I am using the Clark Y airfoil. Foam was rolled to achieve the air foil Ribs and spar installed. Boxed in the Aileron cutout but unsure how to cut the proper hinge on Aileron. Going to start on bottom wing. I need assistance on the Aileron to wing connection normally I build flat wings . So the hinge is tape and the Aileron and wing are cut at an angle to allow full travel. This Aileron connection to the wing is 3/8 of an inch.
http://www.synprove.com/rc/Hexa_Plan1.jpg
http://www.synprove.com/rc/Hexa_Plan2.jpg

http://www.synprove.com/rc/DVIIDepron.htm
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Last edited by RITTMEISTER; Jul 24, 2014 at 05:40 PM.
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Old May 19, 2014, 02:15 PM
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United States, OH, Westlake
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That's nice. Not sure about anchoring the ailerons. I've used medical tape or the disk part of old floppy disks in the past, but that was for flat foamies. If I were building a plane like this, I think I would try CA hinges with foam-safe CA and test them for strength.

Are you putting servos in the wing for each aileron or building a bell-crank the way it was shown on the BAU website?
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Old May 19, 2014, 02:19 PM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
Joined Feb 2006
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Ailerons

I am using 2 servos but I am still insure about the aileron /wing connection the aileron gets cut at an angle not the wing??
That Bau der website is in German not sure how to make it translate.
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Old May 19, 2014, 03:40 PM
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You can translate with Google. Paste the url into translate.google.com
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Old May 19, 2014, 06:18 PM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
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Translation

Thanks !!
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Old May 19, 2014, 06:27 PM
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Bitte!
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Old May 20, 2014, 12:41 AM
Build straight - Fly twisty
Whiskers's Avatar
Australia, QLD, Little Mountain
Joined Feb 2010
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As old time way to do nice free-moving hinges is the Under and Over method.
Each hinge consists of a piece of thin fabric glued to the top surface of the wing and the bottom surface of the aileron, and another piece next to it glued to the bottom surface of the wing and the top surface of the aileron.
In the illustration below the mating edges are rounded, but this hinging method works when the edges are square edged. this makes a very neat looking structure.

Figure 8 thread hinges also work well.
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Old May 22, 2014, 11:42 AM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
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upper and lower wings

Here I have gotten the bottom wing put together without any issues.
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Last edited by RITTMEISTER; May 22, 2014 at 12:35 PM.
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Old May 22, 2014, 11:43 AM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
Joined Feb 2006
249 Posts
thanks!!

Quote:
Originally Posted by Whiskers View Post
As old time way to do nice free-moving hinges is the Under and Over method.
Each hinge consists of a piece of thin fabric glued to the top surface of the wing and the bottom surface of the aileron, and another piece next to it glued to the bottom surface of the wing and the top surface of the aileron.
In the illustration below the mating edges are rounded, but this hinging method works when the edges are square edged. this makes a very neat looking structure.

Figure 8 thread hinges also work well.
I appreciate it Whiskers!!
Will try it and post results
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Last edited by RITTMEISTER; May 22, 2014 at 12:36 PM.
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Old May 22, 2014, 12:59 PM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
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servos

What size servos to get for a 3-4 lb plane? Will 9g work? Recommendations??
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Old May 22, 2014, 04:06 PM
Build straight - Fly twisty
Whiskers's Avatar
Australia, QLD, Little Mountain
Joined Feb 2010
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Quote:
Originally Posted by RITTMEISTER View Post
What size servos to get for a 3-4 lb plane? Will 9g work? Recommendations??
The HXT 9g servos are rated at 1.6kg, and may get the job done.
Personally I'd be going for metal-geared servos in the next size up, rated at 2.2
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Old May 29, 2014, 10:57 AM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
Joined Feb 2006
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build

ok finished the upper and lower wings. Airfoil and washout came out great. The drawing of 5 color Lozenge pattern was challenging.
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Last edited by RITTMEISTER; May 29, 2014 at 11:36 AM.
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Old May 29, 2014, 11:44 AM
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That is some lozenge. Do you have any sanity left after painting that?
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Old Jun 12, 2014, 07:39 AM
Bipes Rule!
RITTMEISTER's Avatar
United States, LA, Pearl River
Joined Feb 2006
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Fokker

Here it is almost ready for maiden flight. My computer kicked the bucket so having trouble updating this build log. I will get
More pics and info uploaded as I can. All that is left is to make a pilot and some paint details.
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Old Jun 12, 2014, 02:23 PM
skumgummi dave
Gresham, OR.
Joined Mar 2004
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Looking good!
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