RE: Realistic Propeller Thrust Calculator?
Francis,
What you have there is essentially a ducted propeller.
The duct around it increases the effectiveness of the prop dramatically.
This is especially so in a static situation, where an 'open' prop may just churn the air, not making much effective thrust...
Besides, what diameter, pitch and most importantly, factor did you dial in.
Surely not the factor for a 'standard' 4.1x5 MA, with those very wide (in proportion to the diameter) blades...
So there are two things; the factor must be ~3 times as large and the duct...