I have now completed two good flight sessions with my NTM NAMC Mig-35, for a total of 12 flights. I think I have things pretty much dialed in the way I want them for how I like to fly. Although the quality is not the best, I did also manage to shoot some video so hopefully you can get an idea of how fast this plane is with this setup.
My current control surface deflections are as follows. It is also important to keep in mind that using precision techniques of airplane and radio setup learned from Dave Scott's Airplane and Radio Setup manual, I have only 15% expo in all three axes. This allows for a much better feel of the airplane and when the sticks are moved on the transmitter, response is smooth and quick in my experience -
- pitch - I have 7/8" travel one way (1 3/4" both ways) in the elevons, this also allows for a little extra emergency throw if I need to avoid any sort of immovable object in a hurry;
- roll - I like to fly with elevons and ailerons working together all the time, if I was going to fly elevons only or wanted to have certain phases of flight where I wanted elevons only, I would certainly increase the deflection of the elevons in the roll. I have again 7/8" travel one way (1 3/4" both ways) in the elevons in the roll and 3/8" deflection in the ailerons. This allows for very crisp, balanced turns and very tight, precise rolls; and
- yaw - I have 3/4" travel one way (1 1/2" both ways) in the rudders, this allows for great rudder response when needed for coordinated turns and allows for good authority and response when doing "rudder centric" maneuvers like stall turns. I have found through thorough testing of the rudders on the Mig-35 that much more deflection than this can cause issues with "rudder rolls", so this is for me about the best deflection on the rudders regardless of the motor setup.
So of course, now onto the important stuff, how fast does it go? :)
I managed to clock four good speed runs with the HK datalogger app on my phone and ended up with the following results 98/98/97/96 mph, very fast on 3S, so I am excited to see how fast it will be on 4S! :)
I cranked on some pretty hard high speed turns and saw no wing flex, or any flutter, speed wobble or bad habits at speed, so I am confident it will handle the 4S power without problem. In fact the faster this plane goes, the more stable it seems to become, it just really "locks in". Built stock with good light building techniques and a good sanding job, this is the fastest stock park jet I have ever flown. To get any other planes to go anywhere near this fast, I have had to highly modify them. The NAMC Mig-35 is just fast "out of the box" as they say if you are looking for a real speedster to add to your hangar.
At the other end of the spectrum, I can comfortably cruise around at 45-50% throttle, but have to be a bit more careful with throttle management, the extra weight and higher wing loading does require a little more focus when trying to maneuver at slower speeds. But then "hot rodders" don't put big block V8s in their cars to cruise around in second gear all day. This setup is more about having a heavy left thumb (I fly Mode 2) and being able to really rip up the sky and still have amazing maneuverability. Even though this plane is 2.5-3 oz heavier than my other Mig-35s, it still feels "light on the sticks". As mentioned, I do need to carry a bit more speed, but the plane responds quickly and efficiently regardless of it's weight.
The extra bit of weight also helps in the wind. The first day I flew it the wind got up to about 20 mph and as you could imagine it was a handful, but up to about 10-15 mph, this setup handles the wind without much problem at all, I just keep it a little higher and a little faster and can still have a lot of fun with speed and great aerobatic maneuvers. It will be my "go to" plane if I know there is going to be a bit more wind at the field.
My CG ended up about 1/8" ahead of stock, but it flies very well balanced, performs very well in the arc test and can fly inverted with just a bit of forward pressure on the stick to keep it level. I have kept the battery back quite far and then adjusted the ESC forward to get it to balance, thus keeping the most mass (the battery at 7 oz) as close to the CG as possible. This picture shows where everything is in flight to keep the plane neutrally balanced. I'm also suspecting that it balances a bit forward of stock CG to compensate for the fact that the motor weighs 23 gr/0.8 oz more than the motor on my other Mig-35s. No matter, it feels very well balanced and it's flight performance indicates that through very quick and agile handling for a 24 oz plane. I have one click of nose down trim to help keep the nose down in high speed runs and two clicks of right trim in the roll to help with torque roll.
More to follow.