ORIGINAL: I-Love-Jets
Q1:
I was also asked if “USA faster than normal airframes” would harmonise well with oversquared props. My counterquestion: What exactly is the US- type?
Q2:
Second question was if the THRUST-HP software is able to calculate oversquared props correctly.
A2:
The answer here is no sadly, since the algorythms only match subsquared and squared prop sizes.
Q3:
Third Q was: At what point does an oversquared prop become a seriously oversquared prop?
Q4:
Is cutting down existing prop diameters desirable?
1. US- type speed planes are the types typically talked about in this forum. Cleaned up deltas, LR-1, Q-500 and other pylon airframes.
2. It sounds like you are just the guy that could write an algorithm for the load factor of speed props.
3. It sound like you are saying that "seriously over squared props" may begin when pitch exceeds diameter by more the 20%.
4. It seems to be common practice to cut down props in the pylon and sport world. Are you saying you shouldn't even trim off 1/4" or less to get in the sweet spot?
Thanks for your thoughts and knowledge.