checked the balance per the manual of 1 1/2" back from
the leading edge and my P-40 was nose heavy. I added 1 1/2"oz
of lead to the tail underneath the stab and it balanced perfect.
The control throws were setup per the manual but I found I
could not get enough Aileron throw with the wing in place,
my torque rods were hitting the wood where the wing mount
blind nuts were. I used my Dremel to sand away some of the
wood in the middle and then they cleared.
control throws are as follows:
Low Rate - 1/8" up & down
Aileron High Rate - 3/16" up & down
Elevator low rate 1/4" up and down
Elevator high rate 1/2" up and down
Rudder low rate 1/2" left and right
Rudder high rate 3/4" left and right
also added around 60% Expo on my Futaba 14MZ for the
Elevator and 40% on the Ailerons.
fired up the O.S.25 and ran a tank thru it before flying, it
ran perfect just like all my OS engines. I used a 9x6 APC
prop and it fit the included spinner with no cutting.
set the P-40 on the runway and hit the throttle. The P-40
tracked pretty straight, there is no steerable tail wheel of
course so it can take a few seconds for any rudder inputs to
have effect, plus you need to be moving.
takeoff the P-40 needed more Expo on the Ailerons as they
were way too touchy. After the first flight I moved the Expo
up to 65% on them and they felt fine after that. I recommend
following the rates in the manual exactly as they seem
perfect for the model.
.25 pulled the P-40 around like a missile, I flew it as a
sport flyer but you could also fly it as a pylon racer. I
suppose you could do Combat with it like its intended
purpose but who wants to take a chance of destroying such a
rolls were a blur on high rates, loops could be made fairly
tight but if you tried to pull too tight on high rate it
will snap out.
CG felt perfect and the P-40 slowed down nicely for landing,
but can bounce a bit on the runway, or my landings need work
the P-40 Warhawk