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Thread: 503 ?

  1. #1

    503 ?

    Can anyone tell me if there is such a thing as a 503 LC ? If so . What does it mean ? As apposed to DCDI ?

  2. #2
    Diamond geezer 500 Club
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    503 ?

    Mike Gregory wrote: Can anyone tell me if there is such a thing as a 503 LC ? If so . What does it mean ? As apposed to DCDI ?
    DCDI = Dual Capacitive Discharge Ignition, IIRC.

  3. #3

    503 ?

    Hi Steve that was quick . Yeh but what about LC ??

  4. #4
    not real name 500 Club
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    503 ?

    Rotax usually use LC to indicate Liquid Cooled ........ but the 503 is free-air or fan cooled !

  5. #5

    503 ?

    Hi Alan . Ah ok thankyou . Just a bit puzzled at seeing an ad on afors for a plane with a 503 LC ? Bit odd . Thanks anyway
    Mike

  6. #6
    not real name 500 Club
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    504

    503 ?

    Using Google I find that you can buy pistons etc for a snowmobile fitted with a Safari Rotax 503 LC engine from 1986 - 1994.

    No details on the engine though as to whether air or liquid cooled.

    Confused.com :smhair:

  7. #7

    503 ?

    Ah . Ok Allen thanks . Just my curiosity . Thanks again
    Mike

  8. #8

    503 ?

    Anyone know much about 532 watercooled ? I didn't think there was any 503 watercooled used in aircraft ?

  9. #9
    Diamond geezer 500 Club
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    503 ?

    Hi Mike,

    If it's a permit plane then you should be able to back track from the TADS/HADS.

    Anything else is a major mod.

    Also worth cross checking what G-INFO says is installed.

    Pm me a link to the plane ad?

  10. #10
    not real name 100 Club
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    503 ?

    462 532 582 water cooled, 447 503 air cooled sometimes fan assisted. 503 with single ignition single carb was quite common. adding a second carb and very small amount of fiddling upped the power noticably but never heard of an aircraft with a water cooled 503

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