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Thread: Flying without spinner

  1. #1

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    Flying without spinner

    I Think I remember reading here somewhere someone talking about saving 2 pounds of weight on a nose heavy airplane by flying without a spinner.

    What's the down side to flying without a spinner? How much speed loss, cooling considerations?

  2. #2
    G44's Avatar
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    Higher CHT (possibly).

  3. #3
    Cub Special Ed's Avatar
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    Some engine/prop/aircraft combinations require spinners for engine cooling purposes.
    "There are 3 kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." Will Rogers

  4. #4
    Steve Pierce's Avatar
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    I removed the spinner on my 150 hp Super Cub and saved 2.7 lbs. I haven't noticed any difference in cooling but don't have CHT/EGT instrumentation eaither. I know the engine will overheat on a Cessna 182 but have seen no issues with Super Cubs. I don't see the spinner on a required equipment list.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  5. #5

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    I could detect no real difference in speed loss or temps after removing the spinner. I was flying behind a cgr-30.....When your airspeed is measured in days instead of Mach #s, I don’t think deleting the spinner matters. Maybe you could detect a slight speed loss if you had a slicked up cub with a cruise prop and little tires?
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  6. #6
    jnorris's Avatar
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    I was flying without a spinner on my Pacer back in the day, and an FAA guy came up and said "Wasn't that airplane certificated with a spinner?" That's all he said, and he walked away, but I got the point. Check to make sure it's not required equipment per the TCDS if it's a standard category airplane.
    Joe

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  7. #7
    cgoldy's Avatar
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    I have had my spinner on an off a couple of times on an O.375 where I watch the temps carefully. Haven't noticed anything yet.
    Back Country O-375 wide body extended wing cub

  8. #8
    Binty's Avatar
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    No difference what-so-ever.
    If you force it, it will fit

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