RE: Learjet .40 Build
most 70mm E that i saw gave about 4lb/s[*2=8lb/s] on the highest RPM i dont think it should be a problem, but maybe control will be difficult due to the engine positioning im guessing the whole plane is about 5lbs [i dont know exactly but i think most .40's are like that ... >.>] i think the weight was around 1.48 lb
it might not be good enough cause the plane might end around 6-7lbs but then again there is a jet forum on here.... ill just keep watching this build [BTW GL with the EDF LJ]