Borders model boat club about dc electric motors and speed controllers motor size designation a motor is often designated by a number such as “540”.. A reduction gearbox will reduce rpm from any motor but increase it's torque. this applies to slow and fast electric motors and ic engines so reduction gears are not uncommon in model boats. size of a motor is commonly an indication of it's output power but not of it's speed.. Standard 385 5 pole motor for use with rc cars, boats. 385 electric motor. however, this will only apply where the item has been subject to normal usage and has not suffered any form of misuse..
3 x 540/550 size electric motors. model boats / robots etc lot 2. british ww2 motor torpedo boat model . no reserve . £4.99. 1 bid + £3.50 p&p. 16 watching; beautifully constructed & hand painted with excellent detail. thought to be at least 30 years old. length approx.. In the electric model aircraft world there seems to be much more information with advice on thrust available from various battery and propeller sizes for a given motor. my second boat was a three motored pt boat (snogg as described in the sept issue of model boats) and that turned out to be a bit of a disaster initially.. Fast electric boats . rc electric boats – guide for successful electric boating; rc boat calculator. motor kv: lipo cell count: prop size in (mm) enter motor kv and cell count it assumes proper hull size, weight and motor size selections with motors larger than the 540 size. prop selections will not be calculated for unloaded rpm’s.
