Zdenek on3d plane, proppeler must be 4-10 angle degree down right to eliminate moment from proppeler (to right watching from back to front of plane in flight direction). On slower gliders, usually 2 degree is enough. Depends on propeller size and weight and rpm, usually need some further debug (adding washers below motor mount screws). Landing gear mount is not long enough, i suppose some longitudinal carbon plate lengthwise with fuselage solid fixed to plastic holder of the landing gears

Zdenek Frontwheel out are OK, could be adjusted. For throttle, there should be a neutral adjustment position knob on transmitter, and maybe reverse switch also. Reverse switch should be consistent all the time, whileas neutral throttle adjustion should allow light adjustment from time to time. Sometimes the TX is capable for braking also (for brushless motor only), when some TX throttle trigger backward moving create negative pulses to drive train - act as brake to stop the car. Start with manual for your TX