EviLCuLT25
04-12-2009, 05:52 AM
Hi everyone, this is my first post here.
Anybody knows twin-propeller open water efficiencies, similar to Schottel STP series?
http://www.schottel.de/eng/r_produkte/STP/uebersicht.htm
I need this information and I emailed Schottel but no reply :(
Help me pls.
I assume it will have less efficiency from large slow speed propellers (0.6-0.7) because it revolves at 1800rpm and is only 1.3m diameter, but is was hoping it could still achieve high efficiency because of the second in-lin propellor.
Anybody knows twin-propeller open water efficiencies, similar to Schottel STP series?
http://www.schottel.de/eng/r_produkte/STP/uebersicht.htm
I need this information and I emailed Schottel but no reply :(
Help me pls.
I assume it will have less efficiency from large slow speed propellers (0.6-0.7) because it revolves at 1800rpm and is only 1.3m diameter, but is was hoping it could still achieve high efficiency because of the second in-lin propellor.