Hi Elevator,
I have no idea what you are trying to use to design an airplane
but guess it provides instructions which ask for much info.
That would suggest you need to know the purpose first, then size, weight and anticipated power.
Would believe knowing those items you could fulfill the needed
info for the "thing" in use.
If it is computor oriented do know that the computor can not
create anything unless you tell it to and what you desire.
Need help, just ask!

Hal [email protected]