TopRC giant P-47 Thunderbolt ARF
07-05-2023, 01:35 PM
#457
The following 4 users liked this post by Colt4570:
09-04-2023, 05:16 AM
#460
[QUOTE=Colt4570;12781062]Took some time to get the ground handling straightened out, but she's flying good these days. A short video of the P-47 filmed by a friend a few weeks ago.
What did you do to improve ground handling? Seems to be a challenge with these warbirds.
What did you do to improve ground handling? Seems to be a challenge with these warbirds.
09-08-2023, 10:34 PM
#461
[QUOTE=jimkron;12782314]
My Top Flite P-47 never had a ground looping issue, so I was surprised when this one did. Not sure if the slight angle of the gear (in at the bottom) affects it either, but I couldn't seem to keep up with the direction changes by way of the rudder and I was always behind it on the landing roll out. The only thing that helped consistently was a Demon Cortex Pro gyro. On approach I switch to the bank 2 setting which I have set to normal gain on elevator and ailerons, but 100% on the rudder and tailwheel.
Even though this model is stable enough at low speed that you can almost 3 point the landings, I seem to have slightly more control when she lands with a little speed on the mains and with more air over the rudder, although the gyro seemed to be the only way to consistently eliminate the ground looping issue. Hope that helps.
Even though this model is stable enough at low speed that you can almost 3 point the landings, I seem to have slightly more control when she lands with a little speed on the mains and with more air over the rudder, although the gyro seemed to be the only way to consistently eliminate the ground looping issue. Hope that helps.
09-22-2023, 06:07 AM
#463
Finally did the maiden of the Thunderbolt.
TopRc P-47 with Stingr gear reduction
48 lbs flying weight with batteries
(4) 8100mah lipos provides power
Tribunus 300 amp ESC
26 x 14 x 4 Biela prop
7-8 minute flight times
105mph top speed
TopRc P-47 with Stingr gear reduction
48 lbs flying weight with batteries
(4) 8100mah lipos provides power
Tribunus 300 amp ESC
26 x 14 x 4 Biela prop
7-8 minute flight times
105mph top speed
Last edited by jimkron; 09-22-2023 at 07:37 AM.
09-22-2023, 07:53 AM
#464
Also, spent a lot of time balancing the plane with a Xicoy "balancing pucks". This thing is very accurate, easy to set up, and great with large heavy planes. (no more hanging from rafters) 
Despite the 4 big lipos, I had to add 1.5 pounds to the very front of cowl.
As stated already, 159mm from leading edge is neutral.
Our CG test in the air confirmed neutral. Might add a couple more ounces to get the plane slightly nose heavy.
jim
Despite the 4 big lipos, I had to add 1.5 pounds to the very front of cowl.
As stated already, 159mm from leading edge is neutral.
Our CG test in the air confirmed neutral. Might add a couple more ounces to get the plane slightly nose heavy.
jim
09-22-2023, 01:16 PM
#465
+1 on the Xicoy scales, especially for large planes, they work great. Nice weathering on that one. That's a whole lot of batteries!
Last edited by Colt4570; 09-22-2023 at 01:18 PM.
11-25-2023, 07:21 PM
#468
My Feedback: (2)
Still no Sierra gear from Darryl. He did tell me a few weeks ago that he does still have those in his “Que” and will try to get to them this fall.
I think what would help is if anyone here wants a set you give him a call and let him know you are interested in buying a set.
I think what would help is if anyone here wants a set you give him a call and let him know you are interested in buying a set.
11-27-2023, 03:06 PM
#469
Here are the basics based on data collected from the Tribunus ESC:
RPM: 5012 max
Amp draw: 198 max
Flight Time: 8 minutes
Batteries: Not even warm
The Stingr 3:1 Gear Reduction system has been a joy. Bolt has plenty of power. Easy to set-up. Truly plug n' fly.
jim
RPM: 5012 max
Amp draw: 198 max
Flight Time: 8 minutes
Batteries: Not even warm
The Stingr 3:1 Gear Reduction system has been a joy. Bolt has plenty of power. Easy to set-up. Truly plug n' fly.
jim
