And for those NZ builders listening in - carb heat is mandatory in NZ on
normally aspirated engines.
Tony
-----Original Message-----
From: Graham Singleton <100421.2123@compuserve.com>
Date: Tuesday, January 19, 1999 11:14 AM
Subject: Carb heat for 912
>Message text written by John Wigney
>>Is it imagination or did I read/hear that the standard
>configuration 912 is not susceptible to carb icing. <
>
>The 912 IS susceptible to carb icing in some types of aircraft, for
>instance rag wing microlights where the engine is not cowled.
>
>The Europa installation effectively uses warm air at all times so has not
>been susceptible. However, since more power is available in hot/high
>conditions by using a "Cold Air Box" the possibility returns that icing may
>occur, although again the factory cold air box has not shown any
>susceptibility. Possibly because the carb bodies are warmed by in cowling
>engine heat. There have been some reports of icing during start up. Jim?
>
>Those of us designing our own cold air systems would be well advised to fit
>carb heat systems especially if cowling design is changed.
>
>Graham
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