|
RE: GP CAP232 Build
Oct. 14th
Sorry for the slow updates. I started on the fuse Friday here are some pics... Sub assembly of the formers and fuse sides... http://www.gumhead.com/rc/cap232/Img0045_097.jpg Here is the fuse pined upside down over the plans. I checked for square and tacked it with CA and the wing mounts were epoxied in... http://www.gumhead.com/rc/cap232/Img0045_101.jpg |
RE: GP CAP232 Build
Oct. 15th
Saturday night I mounted the wing.... http://www.gumhead.com/rc/cap232/Img0045_099.jpg http://www.gumhead.com/rc/cap232/Img0045_100.jpg http://www.gumhead.com/rc/cap232/Img0045_098.jpg |
RE: GP CAP232 Build
Very nice, gumhead, seems to be going together fast. You ever figure out what engine you're going to use? Reason I ask, I recently crashed my Super Sportster 40 and was looking at replacing it with this plane. The SS was a good flyer with a .46--not great vertical but still fast and plenty of fun. I'm wondering if I'll get similar performance with the CAP. Maybe people reading this thread will have an opinion on it.
|
RE: GP CAP232 Build
Well, you asked for tips and the time is now. I highly recommend strengthening the gear mount. After having my gear removed by a fast landing on a grass field, I had the chance to rework mine. Using the scrap plywood from the fuselage doubler as a pattern, I made an 1/8" thick plywood tripler that extended from F-3 forward. This gives the landing gear base a larger gluing surface to adhere to. I also added corner gussets where the base meets the tripler.
Also, instead of installing the 8-32 nut insert, install 1/4-20 inserts and use nylon bolts to secure the landing gear. 1/4-20 nylon bolts are more than adequate for this plane, they will withstand any landing the stock landing gear mount will. |
RE: GP CAP232 Build
Oct. 16th
Way ahead of ya Devo ;) I made a another piece to triple up the side walls and glued everything with 60min epoxy last night. I really went nuts with the epoxy. I put fillets of epoxy all over, I even epoxied under the landing gear brace on the bottom panel. I will take your advice and use nylon bolts instead of the steel. If I do have a real hard landing hopefully the bolt will break before tearing the bottom panel out. Here are the pics http://www.gumhead.com/rc/cap232/Img0045_105.jpg http://www.gumhead.com/rc/cap232/Img0045_106.jpg http://www.gumhead.com/rc/cap232/Img0045_108.jpg http://www.gumhead.com/rc/cap232/Img0045_110.jpg |
RE: GP CAP232 Build
You'd think the fuse would have a vertical load-carrier where the LG mounts, instead of a gaping hole in the sides. I guess the triangles at the bottom corners of the hole are supposed to help. In any case, it looks like your doublers and triplers will do the job.
|
RE: GP CAP232 Build
What rips out the gear is the that a hard landing trys to twist out the gear plate. So what is needed to keep the gear on is something that will withstand the twisting. I added one piece of ply extending from the firewall to the wing mount former which had a slot in it for the gear plate.
I have actually bent the metal gear backwards on a landing in a pothole in our grass field. The gear did not rip off. Tom |
RE: GP CAP232 Build
Oct. 17th
I glued the wing cap/fillers thingies on tonight. I finally found a good use for my sons yu-gi-oh cards :D http://www.gumhead.com/rc/cap232/Img0045_111.jpg |
RE: GP CAP232 Build
Oct. 18th
Last night I drilled out the landing gear and and replaced the 8-32 tee nuts with 14/-20 tee nuts. This way I can use nylon 1/4-20 screws to hold the gear on (thanks Devo). If there is a hard landing the screws will hopefully snap instead of the landing gear bending or the floor twisting out... http://www.gumhead.com/rc/cap232/Img0045_113.jpg http://www.gumhead.com/rc/cap232/Img0045_115.jpg |
RE: GP CAP232 Build
I also finished up the wing caps...
http://www.gumhead.com/rc/cap232/Img0045_118.jpg http://www.gumhead.com/rc/cap232/Img0045_116.jpg |
RE: GP CAP232 Build
Push rods tubes were also installed...
http://www.gumhead.com/rc/cap232/Img0045_119.jpg Glued with epoxy and micro balloons... http://www.gumhead.com/rc/cap232/Img0045_120.jpg After sanding... http://www.gumhead.com/rc/cap232/Img0045_121.jpg |
RE: GP CAP232 Build
Oct. 27th
Wow it's been a while since I've updated this thread. I have been very busy in work lately, Tuesday I worked 13 hours! I have still been working on the bird tho... Here is the fuze with the firewall mounted and the glue sparse for the front deck... http://www.gumhead.com/rc/cap232/Img0045_123.jpg Sheeting the front deck... http://www.gumhead.com/rc/cap232/Img0045_124.jpg Glued up and ready for trimming and sanding... http://www.gumhead.com/rc/cap232/Img0045_125.jpg |
RE: GP CAP232 Build
The stab was aligned and epoxied on...
http://www.gumhead.com/rc/cap232/Img0045_126.jpg Next it was on to the turtledeck. The formers and the glue spares where atached... http://www.gumhead.com/rc/cap232/Img0045_127.jpg http://www.gumhead.com/rc/cap232/Img0045_129.jpg |
RE: GP CAP232 Build
I took some aggression out this night :)
http://www.gumhead.com/rc/cap232/Img0045_130.jpg Lets hope this chick can fly [:o] http://www.gumhead.com/rc/cap232/Img0045_131.jpg |
RE: GP CAP232 Build
I edge glued 3 pieces of balsa for the turtledeck sheeting. Hey nice butt... joints.
http://www.gumhead.com/rc/cap232/Img0045_132.jpg Cut to size... http://www.gumhead.com/rc/cap232/Img0045_133.jpg All glued up! http://www.gumhead.com/rc/cap232/Img0045_135.jpg |
RE: GP CAP232 Build
|
RE: GP CAP232 Build
Wow, that's progress! Looks like covering isn't far off.
|
RE: GP CAP232 Build
Looks great!
However, I don't like the pusrods patent going through the balsa. I have one of these on my Goldberg's Eagle and it's very fragile. After a tough landing, one of the pushrods has broke and I had to rip off half a wing to fix it.... I also think that only one servo on the ailerons isn't enough for a plane like this... Keep updating, I'll keep following the thread closely! |
RE: GP CAP232 Build
ORIGINAL: moneymaker Looks great! However, I don't like the pusrods patent going through the balsa. I have one of these on my Goldberg's Eagle and it's very fragile. After a tough landing, one of the pushrods has broke and I had to rip off half a wing to fix it.... ORIGINAL: moneymaker I also think that only one servo on the ailerons isn't enough for a plane like this... |
RE: GP CAP232 Build
The issue I have had with torque rods and one servo has flutter. The solution was always to have dual servos, one for each aileron. The issue is torque only when there is a big surface to control.
My 2 cents. |
RE: GP CAP232 Build
1 Attachment(s)
gumhead, if you're wondering how much your new Saito 91 is going to stick out...
|
RE: GP CAP232 Build
ORIGINAL: Devo gumhead, if you're wondering how much your new Saito 91 is going to stick out... Is that Metallic Plum? I picked up a can last week, I'm thinking of half white and half metallic plum with metallic green trim for my color scheme. Did you need any lead in the back with the 91? |
RE: GP CAP232 Build
That is one big prop, devo. Isn't this a .40-size plane?
|
RE: GP CAP232 Build
ORIGINAL: nickj That is one big prop, devo. Isn't this a .40-size plane? |
RE: GP CAP232 Build
Oct. 30th
I only did a little work on the plane this weekend. I mostly worked on the fin.... First was to glue the fillet blocks on the fuse and start carving... http://www.gumhead.com/rc/cap232/Img0045_137.jpg After a little ruff sanding... http://www.gumhead.com/rc/cap232/Img0045_138.jpg |
| All times are GMT -8. The time now is 09:47 PM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.