5 ms·
> in V8 there is a cylinder firing at every 90° rotation which means 2 cylinder fire in one crankshaft rotation. Your method and math checks out even without t
by tgtweak 6y ago
> in V8 there is a cylinder firing at every 90° rotation which means 2 cylinder fire in one crankshaft rotation.
Your method and math checks out even without the tachometer observations - in a split-plane v8 (such as that in the scc tuatara) you have two cylinder fires per rotation of the engine. You have measured 251 cylinder fires per second (251hz) thus 125.5 rotations per second OR 7530/minute (RPM).
Hard to refute that.
- m4rtink 6y agoApparently (according to a YouTube video I watched :P) this is how they tell combustion engine powered torpedos apart via passive sonar. Analyzing the sound gives you the number of cylinders and number of propeller blades, which can identify the given torpedo type quite reliably.
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- m4rtink 6y agoInteresting! :)
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