>
>> Bobby J. Hughes wrote:
>>>  What airframe is it?   Glastar 2 place
>>>   What is the cruise speed? I think he said 130 knts\ 60% power
>>>
>>> What is the fuel burn at that speed? About 7 per hour. He also said
>>> he had plenty of engine left but the plane would not fly any faster.
>>
>> 7galx6lb per gal=42 lb/hr
>> at .45 lb per hp/hr, 42/.45=93.3 hp (BSFC might not be that good)
>>
>> If the 60% is real, that's 155.5 max hp
>>
>> Thanks,
>>
>> Charlie
>>
> Additionally, Charlie, At 155 HP, the 700+ cubic inch radiator core
> should have no problem cooling it at all.
>
> Ed
>
Bingo! :-)

He is obviously not using all of his engine. I was more puzzled by the
radiator ducts and all the turns they make on the way to the radiator. I
guess the subi's have minimal oil cooling needs so the little aluminum
tube oil to water heat exchanger works well.

Bobby



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