Hi PAPA!
As Fuze already said.... you need to map
THROTTLE 1 to your Joystick throttle lever. That controls the Mainfold Pressure (basically your gas pedal).
The RPMs are tied to the pitch of your prop blades and can be used to reduce fuel consumption. Check your E6B (ESC for clipboard) for different RPM/MP settings to save fuel.
You can check if your going full throttle (ie full MP, not RPM!!) by pressing P key (WEP). In most fighter planes WEP (War Emergency Power) was extra emergency boost given for a short amount of time - danger of engine overheat!! Youll get WEP at lowered rpms (they are automatically set to full by that) but only at full MP.
To reduce rpms in flight either map that to an extra slider or rotary or use the +/- keys on your numpad.
More info and help can be found on
Hammer's Net Aces and in the games Help File.
For everything else this forum is the place to go
.
Welcome to your new addiction
.