ORIGINAL: spirco
Hi guys
Is there any general rule about what kind of propeller matches in a specific engine or i'll have to experiment with several sizes?
Read the manual, it will give a range of prop sizes for your engine. These props will satisfy the engine requirement to run at the optimal max RPM (i.e. they will not overload, nor over-rev the engine).
The range will be a combination of prop size and pitch. The smaller the prop size, the larger the pitch will be in the range. For example, and OS.46FX has the recommended prop ranges: 10.5x6 through 12x7...
If you want a FAST plane, go with something like a 10.5x8, if you want a powerful plane, go with something like a 12x5
gus