i found in the flight simulator, you can edit your aircraft. you can turn the f16 into a spaceplane, but it only goes 600-610 mph in space... anyone know why

from C:\Program Files\Google\Google Earth\res\flightsim\aircraft\f16.acf

new settings !

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%
% Power plant.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%
% Jet engine: power lever controls thrust.
P_max = 999e7
F_max = 999e3
P_ratio_reverse = 0
P_ratio_alpha = 1.2
p_T_v = [ [ -14.5 0 -1.83 ] ]
d_T_v = [ [ 1 0 0 ] ]

_______________________________________________

% Mass/cm/inertia.

m = 120

J = [
[ 12800 0 1330 ]
[ 0 57600 0 ]
[ 1330 0 85500 ]
]