[rebel-builders] nose bowl intake size

[Jim Cole]

Hi Mike, I can't answer your question but since your talking about nose
bowls I'm just starting to research the type to order for my 912 Rebel.
The Rotax has water cooled heads and air cooled cylinders. Has anyone
found the ideal nose bowl that allows you to mount the rad underneath
the engine and have two air intakes close to the spinner?

Thanks
Jim
Rebel 333

Jones, Michael wrote:

hi all

well since no one is talking i will ask a question, according to the eaa
book tony bingelis on engines the cooling air intake size is the horsepower
multiplied by .35,

so my 160 hp lycoming needs 160 x .35 = 56 in square so 24 sq inches each
side,

well the nose bowl from spruce m-3bc (or some number like that) has an area
of 43 x 2 + 86 inc square (approx) , so why is no one using smaller openings
and reducing the drag a little bit,

i am think of filling in my openings now

mike#007




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[Bob Patterson]

Hi Mike !

I used the Thorp T-18 nosebowl from AS - it has smaller openings,
and looks quite sleek ! No problems with inlet air - needed larger
outlet air opening than originally set up, though ...

Have a look at mine at the Builders Meeting next Sunday ! There
are pics in the archives, too ...

--
......bobp
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.qbeautyzone.com

-------------------------------orig.-------------------------
On Wednesday 06 September 2006 05:40 pm, Jones, Michael wrote:

hi all

well since no one is talking i will ask a question, according to the eaa
book tony bingelis on engines the cooling air intake size is the horsepower
multiplied by .35,

so my 160 hp lycoming needs 160 x .35 = 56 in square so 24 sq inches each
side,

well the nose bowl from spruce m-3bc (or some number like that) has an area
of 43 x 2 + 86 inc square (approx) , so why is no one using smaller openings
and reducing the drag a little bit,

i am think of filling in my openings now

mike#007

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[Angus McKenzie]

Builders Meeting??Next Sunday??




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[Drew Dalgleish]

Mines a tri-pacer nose bowl and it is pretty close to the formula IIRC and
I haven't had any cooling problems since enlarging the exit. Put up the
builders meeting date please Bob.

At 01:40 PM 9/6/2006 -0400, you wrote:

hi all

well since no one is talking i will ask a question, according to the eaa
book tony bingelis on engines the cooling air intake size is the horsepower
multiplied by .35,

so my 160 hp lycoming needs 160 x .35 = 56 in square so 24 sq inches each
side,

well the nose bowl from spruce m-3bc (or some number like that) has an area
of 43 x 2 + 86 inc square (approx) , so why is no one using smaller openings
and reducing the drag a little bit,

i am think of filling in my openings now

mike#007




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Drew



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[Dale Fultz]

Already----Gee time sure passes ... Dale SR-033
----- Original Message ----- >

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