Just to give you an idea of the torque a Diesel can make, here is a shot of my Enya .25d turning a Graupner 12x5. According to YYK's post my rpm is ideal.
SS25DBB TN (Diesel) For middle size scale or sport plane
Power 0.8 HP, Revo. range 2,500~9,000 rpm
Last edited by Hobbsy; 02-05-2016 at 06:45 AM.