What prop size for .15 Sport UC plnes?
Hi All:
.
What prop size would you suggest for the following engines, Fox .15 with DDD head, ST G-20 .15 D and a MVVS D7?
In the past I have used 7x4, 7x6 ,8x4 and 9x4 props. My favourite props were the old Cox black plastic 9x4 and the Taipan 8x4 gray plastic. Sad to say, these are no longer availablle.
I have been advised to go to a 10X4 but I an a bit leery of overloading the crank pin with this large prop.
It seems that the 7x6 props turn up too much speed! How does an 8x5 sound as a possible solution! The 8x6 may be too much of a load on these small engines.
Suggestions?
Tia,
Franchi