On Sat, 26 Jul 2003 06:45:00 -0400, David Megginson
<[EMAIL PROTECTED]> wrote:

>Jon Stockill writes:
>
> > They are - I started out in them when I was 14, and didn't have any
> > problem handling it then.  Also fully aerobatic, provided you remember
> > that there's no inverted fuel system on them, so leaving it upside down
> > with no +ve G on results in a bit of a chugging noise from the front - it
> > starts again when you roll it back the right way up though.
>
>Just like the Spitfire -- the ME-109's fuel-injected engine was one of
>the few advantages it had over the Spitfire's gravity-fed, carbureted
>engine, if I recall correctly.

Once again, like everything with the Spitfire, it depends on the
Mark and mod status. I don't remember the details but there were
at least three inverted flight 'states' for the Spitfire. These
were: Unmodified, Modified to improve time inverted (Miss Pennys
Orifice IIRC! :) ) and with an inverted flight system (still
time limited IIRC). I don't remember which Mks had which.

<gets carried away>

The Spitfire went from Mk I to Seafire Mk 45! Always remember
that the late mark Spitfires had a different wing design and
engine type (Griffon vice Merlin) to the early marks and had a
weight greater than the Mk.I and 12 passengers and baggage.

As far as mod state goes, if you are looking at the Battle of
Britain, this is important. The same aircraft might, for
example, have begun the battle with a fixed, two bladed, wooden
prop and ended it with a changeable pitch (two position), metal,
three blade unit, giving a significant change in performance

Mk I: 998 HP Merlin Mk II driving (initially) a two bladed
wooden prop
Mk 24: 2340 HP Griffon 64
Seafire Mk 47: 2200 HP Griffon 87 driving a contra-prop

Mk I max TAS at 20,000 ft (where it was fastest): c. 350 mph
Mk 21 max TAS at 20,000 ft : c. 430 mph

The Bf-109 had a fuel injected engine, which had maintenance
implications (especially on a 'field' strip) but gave it no
problems inverted.

Rick
-- 

David Farrent and Dougie O'Hara on the Cold War 
role of the ROC: 'What a world of sorrow is hidden 
in those few words - "[Post attack] crew changes 
would have been based on crew availability."'

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