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Home > Archive > Flight simulator > July 2005 > OT Upside down engines
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OT Upside down engines
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| My boss has got a few of planes all of which are 50-60 years old. Tiger
Moth, Bucker and a Focker. He was showing me some diagrams of the Bucker
engine and I asked why it was upside down and he said it was so you could
see. His reasoning was that the cylinder heads would stick up and block the
pilots view (bit like the Jenny in FS200) so the engine was turned upside
down. I went away and thought after while "what crap" the engine is the same
height either way up so fitting it either way in the engine bay doesn't make
any difference. I think its because mounting it upside down gives the prop
more ground clearance and allows larger props. I got this idea after reading
about the bent wings on the Cosair.
Hope my diagram survives the mail system. It shows (very simply) the engine
cowling, under carriage and landing wheel
----------------
|- <- upside down engine
|
|
|- <- normal way up
----------------
\ /
\ /
\/
----
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----
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| Lakeview Bill 2005-07-21, 8:37 pm |
| Measure from the centerline of the prop flange to the top or bottom of the
engine and you will notice quite a difference. And the centerline of the
prop flange must remain the same (relative to the aircraft) no matter which
position the engine is in.
"Paul" <paul@opes.com> wrote in message news:42df5e74$1@quokka.wn.com.au...
quote:
> My boss has got a few of planes all of which are 50-60 years old. Tiger
> Moth, Bucker and a Focker. He was showing me some diagrams of the Bucker
> engine and I asked why it was upside down and he said it was so you could
> see. His reasoning was that the cylinder heads would stick up and block
the
quote:
> pilots view (bit like the Jenny in FS200) so the engine was turned upside
> down. I went away and thought after while "what crap" the engine is the
same
quote:
> height either way up so fitting it either way in the engine bay doesn't
make
quote:
> any difference. I think its because mounting it upside down gives the prop
> more ground clearance and allows larger props. I got this idea after
reading
quote:
> about the bent wings on the Cosair.
>
> Hope my diagram survives the mail system. It shows (very simply) the
engine
quote:
> cowling, under carriage and landing wheel
>
> ----------------
> |- <- upside down engine
> |
> |
> |- <- normal way up
> ----------------
> \ /
> \ /
> \/
> ----
> | |
> ----
>
>
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