Folks,
I have a tiny .01 cubic inch 2 cycle model airplane
motor that runs on nitro glow fuel. It has a 1/2" or shorter rod.
Even at 20,000 rpm it puts out much less than 1/8 HP.
I have also seen a diesel boat motor with 6 foot long rods
that puts out over 2000 HP at less than 1000 RPM. It runs
on bunker fuel.
Given the above information I can conclude:
1. Longer rods make more horsepower.
2. Bunker fuel makes more horse power than nitro.
3. Lower RPM makes more horsepower.
4. Boats make more horsepower than airplanes.
5. Both motors were 2 cycle, so no conclusion could
be reached about 2 verses 4 cycle.
I hope this information clears up the confusion about
short and long rods and provides some insight into other
misconceptions related to RPM, fuel etc.
Just trying to help ;-)
James Barrett Tiger II 351C and others
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