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  1. tlrussell

    Aircraft engines are supposed to be simple..

    dyno is not what it is using on the road. Car engines use 25-35% power at 55mph. Dyno is a false loading system. The math isn't hard but this will help
  2. tlrussell

    Aircraft engines are supposed to be simple..

    Wrong. Do the math. 7.7l@230hp at 65% = 150hp/470ci = .32hp/ci 4.0l@270hp at 25% = 81hp/244ci = .28hp/ci Airplane motors are limited by more than the propeller speed. The physics of limiting maximum speed have many variables. Car engines average 20-30% max load capability in a lifetime...
  3. tlrussell

    How many of you fly at night regularly?

    I plan my night flying around more than 50% moon, clear nights. I never take off at night. I never land at night at an unfamiliar airport.
  4. tlrussell

    EI CGR-30P Engine Analyzer

    subscribe
  5. tlrussell

    Engine Run Ups

    Why wouldn't you? A ton of really bad things can happen between now and then.
  6. tlrussell

    A quick and fun prop math riddle

    how fast is bird flying?
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