View Full Version : Ultrafly PC-9 + Eflite 370?

09-10-2005, 11:03 PM
Hi ya, I am just about finished with my Ultrafly PC-9 (T-6A II). I am thinking about using my E-flite 370 with the stock gears in place of the stock 400 that comes with it. Has anybody done this, and will it work? I have a 1900 MaH Lipo and a 50Amp Speed controller. Thanks in advance...

Matt Kirsch
09-13-2005, 06:15 PM
More information is necessary. What are "stock gears?" Is it a 2S or 3S LiPoly?

The Eflite 370-4100 is good for flying a ~12oz plane 3D, or up to 18 ounces in a scale fashion, IFF you use the right gearbox, prop, and battery.

09-13-2005, 06:43 PM
Good lord! Why such a huge speed controller?
also, try to put the cg as far back as you can and still maintain level flight. The Ultrafly PC-9 has a tendency to want to drop a couple feet when turning. putting the cg back a bit helps a little. We had two at our club, one was mine, and they both exhibited the same behavior. FYI


09-15-2005, 02:31 AM
Sorry I am late getting back, I was out TDY on a mission. I have such a big speed controller because, well... hmm... Not real sure, I just figured if I went that big I would never have an issue.

I have a 3C 1900 Mah battery as well.

09-15-2005, 06:22 AM
I'm unsure of the amp draw for your setup. But I'm guessing you could get away with an 18-25 amp esc. It would just suck if you killed that esc in a crash. Thats a lotta bucks for an otherwise inexpensive setup.:) But hey; if you got it, use it!:)
Hope all goes well. pls tell us how the maiden goes.;)


09-15-2005, 07:53 PM
Yes please do keep us informed about it's maiden flight. I have been a fan of the PC9 for a long time and would like to get one of the Ultrafly kits but am concerned about the CG and flight characteristics.

09-15-2005, 09:03 PM
Just down to paint and finish. I am doing it after the bird my buddy flew while he was a T-6 instructor at Laughlin AFB before he came over to the tanker world.

09-15-2005, 09:58 PM
I can give you a little info on the PC-9's flight characteristics. I had only two complaints with this particular aircraft. Firstly, Most Ultrafly models are a beast to launch. They have a tendency to torque roll when hand launching. Not a slight roll, but a major one. It's best to toss it with the right wing slightly down, or toss it straight up in the air at near full throttle. Secondly, was the one I mentioned above. All planes loose altitude when turning without up elevator, but the PC-9 actually "drops" a couple feet when making turns.

Another guy in our club has one and he has the same problem. He doesn't even fly it anymore. Now, I guess you could say these things are minor, and you'd be correct. However, I can fly my modified E-Starter and it really has no bad behaviors in flight. I really dig the PC-9 as well, but at 70 bucks, I could do better. Hope this helps.:)

You know what would be great? It would rock if Ultrafly would start selling Slopers. 40-45.00 slope version. That works for me. They say they will in the future. How far away that is? I've no clue:(


09-15-2005, 10:00 PM
Just down to paint and finish. I am doing it after the bird my buddy flew while he was a T-6 instructor at Laughlin AFB before he came over to the tanker world.

Can you post a pic of your plane when you're done with the painting? I really do love the way this plane looks.:D

09-16-2005, 01:37 AM
Here is one pic in progress, I am down to adding another cote of blue, detailing the cockpit, adding the "XL" tail letters, tail number, tail stripe and pilots name on the side. The bad thing is that no matter what you do, it still looks like foam up close and I want it to fly so weight is an issue.



09-16-2005, 01:45 AM
Foam. Still sweet looking! Me like. Me like!

09-16-2005, 06:27 AM
Very nice. Whats interesting is that my friend's PC-9 has a very, very similar paint scheme. I think thats cool!:D


09-16-2005, 08:00 AM
Took these this past weekend while down in Roswell NM for some USAF flying. Here is the real one that I am doing mine after (except the tail # on my buddys is 3603). Should be done tomorrow (I hope)


09-16-2005, 10:09 AM
I like that plane!:) Thanks for the pics.

09-17-2005, 01:41 AM
I've had my PC9 for a year now. I have no complaints. It's held up relatively well for being an all-season flyer. Belly landing in the snow! I've gone through 2 sp400 motors and think it's pretty fast with the stock setup. The stock gear ratio is 3:1, somebody asked. I may go with an outrunner to eliminate the gb entirely.


09-17-2005, 03:03 AM
You're right, It does fly well stock. I flew mine stock for a few weeks. But I eventually swiched over to brushless.


09-17-2005, 06:26 AM
Well except for the lower fairing (T-6 only option), the VHF antennas on the stab and the exhaust stacks, and the 1st flight, I think I can just about call this project complete. Not quite as big as my larger F-16s or as fast as my little pusher F-16, but I can't wait to see it fly...Here are the pics...


09-17-2005, 09:08 AM
Very nice fleet. Kc, you do great work. They all look mahvelous! That is by far the best PC-9 I've seen.