MR Aerodesign Cap10 build thread - RCCanada - Canada Radio Controlled Hobby Forum
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Old 03-20-2010, 11:03 AM   #1
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MR Aerodesign Cap10 build thread


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Hi All, before to go with the building thread, I want to give you a little historic about my Cap10 design... It is one of my first design, in 1998. I made the plan from 3-view with AutoCad. The result was very nice and the model flew incredibly well !! You can see a video on youtube : http://www.youtube.com/watch?v=ipVodVGj9IM (Badfully, sound was removed because my brother use a Rush music in the background... So, you can't hear the beautiful Zenoah G-45 sound too...)
Recently, the French magazine MRA ( http://www.mra-magazine.com/ ) wanted to make a review of my Cap 10. Because it's a old design, the plan not show the quality of my new design like the Beaver, PC-6 and Turbo Beaver. This new design was made with a 3D software and have a building manual. I also take a lot of experience since this time... So, I ask to MRA Magazine to give me some time to make a major update on my plan before to make a review on it.. This is what I do and I completly redraw the Cap 10 on the 3D software. By the time, I got factory drawing of the Cap 10 and I use it to make some change to be more accurate from the real aircraft. Tail section was slightly modified, flap are increased and now use scale hinges location. Shape of the wing are also a little bit modified but I keep the same airfoil because the flight charasteristic was perfect and I want to keep it intact. Also, some modification was done on the fuse and I will also have a scale tail wheel.
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Old 03-20-2010, 11:09 AM   #2
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Re: MR Aerodesign Cap10 build thread

Now, I have begun to build the new prototype. I start by the flap and aileron. Not so much trouble for this parts.
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Old 03-20-2010, 11:15 AM   #3
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Re: MR Aerodesign Cap10 build thread

Now, it's time to put the brass tube in the flap hinges parts. I put a long brass tube in all the parts, perfectly aligned. I put a lot of thin CA to glue the tube and add strenght to the wood. When all was dry, I saw the brass tube. After that, just sand the tube flush with a metal file and debur the inside of the tube. When I glue the hinge in the flap I use a long tube to be sure that all the bushing are perfectly straight !
After that, I finish the sheeting and leading edge of the flap. The hole for the servo arm will be cut later..
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Old 03-20-2010, 06:52 PM   #4
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Re: MR Aerodesign Cap10 build thread

I will follow this thread with interest.
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Old 03-21-2010, 02:03 PM   #5
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Re: MR Aerodesign Cap10 build thread

Looks great. I still have one of the old Yellow Aircraft Cap 10B versions I'm in the middle of electrifying. Does the best Lomcevacs and knifedge spins of any plane I've ever owned. I'll be watching this one carefully in case I need another one.
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Old 03-23-2010, 05:44 PM   #6
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Re: MR Aerodesign Cap10 build thread

Snap roll and knife edge pin are really incredible with this aircraft ! Your right about that ! But, surprisingly, they are nice for the landing and on slow flight. The flap help, but even without the flap they are easy to fly at slow speed ! The fun fact with the Cap 10 are it's one of the very few aerobatic plane who have flap ! Can't wait to see the new flying caracteristic of my new model, because the flap are a little bit bigger but also have the scale rotation point...

I'v start the wing this week end. I begun by the center section. I glue the wing joiner with the main spar first. After that, I put the airfoil section and the top sheeting.
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Old 03-28-2010, 11:50 AM   #7
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Re: MR Aerodesign Cap10 build thread

During the small spare time I had in the evening of last week, I build the right wing section.

1- I begun by gluing the doubled wing spar.

2- Put the first airfoil with the dihedral gage.

3- Add the other wing section and stringer

4- Add the leading, trailling edge and wood stringer for the servo.
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Old 03-28-2010, 12:01 PM   #8
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Re: MR Aerodesign Cap10 build thread

5- I glue the shear web. They are laser cut, so no wasted time to cut it !

6- I cut and glue the top sheeting. 4 sheet of 3/32 basla, previously glued and sanded. I use the Ontarion adhesive Super Phatic glue. This glue give me enough time to apply it on each ribs, spar and stringer, and make a very strong bond. I put all the weight I have found all around my shop and let it dry for a 1 hour.

7- Remove the weight...

8- All corner are filled with Super Phatic to be sure to have a perfect bond. It's now time to cut the tab, make a little bit of sanding and prepare for servo installation....
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Old 04-01-2010, 06:27 PM   #9
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Re: MR Aerodesign Cap10 build thread

1- I have check if the right section fit correctly with the center section and the main spar. With some little sanding to remove dried glue drop, all are perfect !

2- Time to install flap. I put a long brass tuping to be sure to have the hinge pivot correctly aligned and I glue the hinge pivot.

3- I put the servo and temporary make the pushrod and move the flap. All are correct !
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Old 04-01-2010, 06:30 PM   #10
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Re: MR Aerodesign Cap10 build thread

1- Now I make the aileron servo installation.

2- And check the if the hole of the aileron door access are correct. No problem here...

Now, before to make the bottom sheeting, I want to make the right wing... Few pics in the next days..
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