*Unofficial* FT A-10 Warthog

CappyAmeric

Elite member
The CG is now located at 25% wing. (I moved it forward and backward and no luck). Had the same type of problem with the 64 mm SR-71 which I solved. Yes, I have high rates to save my plane, if you notice the first video, I made it around the field and it smooth out for the landing pulling to the left. Has to be something else.

So I am exploring further until it flies right or bites the dirt.
It does look like aft CG.

Since I fly alone, I am almost ready to give up on flying large models that require hand-launches. My MS F-16, MS A-10, and MS P-38 are rarely flown because 1 out of 3 hand launches are sketchy. Over 1.3 meters or 1 kilo, give me landing gear.
 

L Edge

Master member
It does look like aft CG.

Since I fly alone, I am almost ready to give up on flying large models that require hand-launches. My MS F-16, MS A-10, and MS P-38 are rarely flown because 1 out of 3 hand launches are sketchy. Over 1.3 meters or 1 kilo, give me landing gear.

There are 3 designs that are tough to solve, SR-71, A-10 and the F-117 using 64 EDF's. I solved the SR-71problem and I am hoping the issues are the same for the A-10 edf. So far, making some progress, flys different each time I change something. I still want the static CG at about 25 % of the wing. Will try the F-117 in the future.

Here's the first test flight of the S-71 that looks like the CG is aft. It wasn't the problem. Go to 0:40 sec.

 

Tzicul

New member
It does look like aft CG.

Since I fly alone, I am almost ready to give up on flying large models that require hand-launches. My MS F-16, MS A-10, and MS P-38 are rarely flown because 1 out of 3 hand launches are sketchy. Over 1.3 meters or 1 kilo, give me landing gear.
I also fly alone and all my models are over 1,5 meters. P38, A10, Spitfire, Corsair, Mustang and a few others, all are FT scaled up to around 130%. And I don't have problems with hand launching for a simple reason, more traction than weight 😀. And, usually, belly landing is not a problem as I only fly on grass. One modification though, aileron control/servo is located above the wing, not under. I made this modification after I had to change a few stripped servos.
I am already on my third A10. The first one was built with a locally purchased foam, it was very heavy with a very thick paper/glue. Ended up nose down into the ground, my fault though. The second one was built with original FT foam, but very expensive for us, Europeans. And very hard to find, maybe twice a year on stock at Lindinger. Those two was/are powered by four motors, two in each nacelle. Enough power, close 1:1 weight/traction. The third one I built this spring and flew only once, with two 4S 80mm EDFs. It was very nose heavy and I kind of crushed it, not very bad, it is already repaired, but I didn't find the time to fly it since then, I'm out of town with work until next spring. This last A10 ( as the rest of my newest planes) is build form 5 mm polistyren bought from DIY store, laser cut and covered with that PE sheet heated with my wife's iron, don't know the exact name in english. Extremely tough and very light. And extremely cheap, maybe a $20-25 airframe. Can't wait to fly it again, probably next spring. Well, enough babbling. The idea is never stop trying new things
 

L Edge

Master member
I also fly alone and all my models are over 1,5 meters. P38, A10, Spitfire, Corsair, Mustang and a few others, all are FT scaled up to around 130%. And I don't have problems with hand launching for a simple reason, more traction than weight 😀. And, usually, belly landing is not a problem as I only fly on grass. One modification though, aileron control/servo is located above the wing, not under. I made this modification after I had to change a few stripped servos.
I am already on my third A10. The first one was built with a locally purchased foam, it was very heavy with a very thick paper/glue. Ended up nose down into the ground, my fault though. The second one was built with original FT foam, but very expensive for us, Europeans. And very hard to find, maybe twice a year on stock at Lindinger. Those two was/are powered by four motors, two in each nacelle. Enough power, close 1:1 weight/traction. The third one I built this spring and flew only once, with two 4S 80mm EDFs. It was very nose heavy and I kind of crushed it, not very bad, it is already repaired, but I didn't find the time to fly it since then, I'm out of town with work until next spring. This last A10 ( as the rest of my newest planes) is build form 5 mm polistyren bought from DIY store, laser cut and covered with that PE sheet heated with my wife's iron, don't know the exact name in english. Extremely tough and very light. And extremely cheap, maybe a $20-25 airframe. Can't wait to fly it again, probably next spring. Well, enough babbling. The idea is never stop trying new things

Here is latest video with no cg change.


Have you played around with STOL planes?
 
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Tzicul

New member
Nope.
Just try to move the cg to the front, maybe 1 cm at a time. I would say maybe 3-4 cm cam make a difference. Since now it still is kind of controllable, worst case scenario it will barely lift off. Best case you will find the sweet spot. If you don't like, just move the battery back to its initial position.
 

L Edge

Master member
Nope.
Just try to move the cg to the front, maybe 1 cm at a time. I would say maybe 3-4 cm cam make a difference. Since now it still is kind of controllable, worst case scenario it will barely lift off. Best case you will find the sweet spot. If you don't like, just move the battery back to its initial position.

Did you notice the other problem?
 

L Edge

Master member
Do you have counter rotating props?

I am using 64 EDF's which no has really no one has yet(no videos showing full flight) successful done. If I do solve it, I will present my findings.
If I don't I will explain.

I have four projects, A-10, a VTOL, flying wing with no vertical struts, a STOL Chinnok . That's what keep me happy.
 
I'm starting to create supports for EDF 64mm, how did you mount them?
 

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L Edge

Master member
I am finished with necessary changes to get the A-10 Warthog airworthy. Even with 2 5 bladed 65mm EDf's, it is flyable within a 300 ft square at about 2/3 to 3/4 throttle. By chucking it, it was solid and performed well even getting it do right turns and going slow. Even landed down wind.

When I can get to an open flying field, going to check out the full flight environment. So now, I am confident what needs to be done to get a FT A-10 Warthog and a Sr-71 to fly. Now attacking the F-117 problem.

 
Just started laser cutting the plans for a twin EDF build. I can't find anywhere that shows what size wheels this uses. Can anyone share?
Also did anyone add a nose wheel? What about skids for the bottom of the vert stabs? I always use a paved runway.
 
MY SOLUTION
 

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My scratch build is proceeding well with the black paper foam.
Have the wing nearly complete.
Making an A-10 Black Snake with 64mm EDFs.
I am a former A-10 avionics mechanic back in my enlisted days.
This is the first step in my journey to RC pilot all 5 airframes that I worked on from 1987 thru 2001.
RF-4C, A-10, C-130, MH-53J, and the C-9

Since I am scratch building the A-10, I need someone to let me know what size wheels are used in the kit.
Also what are folks doing for the nose gear?
I fly on a full sized paved runway (7000 feet) so I need to add something up front (wheel, skid, etc) to keep from damaging the nose against the pavement.
I don't want to add retracts as I am trying to keep the weight down.
 

topher65

New member
Hi,
I have searched but can not find any directions text or video on how to build the wings on the master series A10.
Can anyone provide A link?