Spit 1a

[furbs]

Been flying the Spit 1a this morning on the SYN server and been struggling to get it going more than 250MPH at sea level.
This is with a full load of fuel, 100 Prop pitch and boost on.

Anyone managed any better?

[Plt Off JRB Meaker]

Are you using complex engine management?I believe there is a bug in the non cem model making it slow.

If using cem,one small tip,presumably you're rad is are open,if not,it should be,but and it's a big but,you must ensure it's not fully open,as the drag with it being fully open totally kills you're speed,almost the same as an airbrake being applied.

To answer you're question,yes I have had my Mk1a well over 250mph.

[furbs]

Full real, Rad open 70%, boost on prop pitch 100.

Il give it a go at different rad settings.

Can you check your speed again and tell me you max at sea level?

cheers.

[skouras]

the spit is buggy in my opinion
only the spit II has the real speed

[ATAG_Snapper]

Originally Posted by furbs

Been flying the Spit 1a this morning on the SYN server and been struggling to get it going more than 250MPH at sea level.
This is with a full load of fuel, 100 Prop pitch and boost on.

Anyone managed any better?

Hi Furbs,

I did a speed trial at Brealistic's request over on the other forum at the optimum alts (per manufacturer) using CEM : http://vimeo.com/26706198

Much of my Spit flying is at sea level/low alt and my experience mirrors yours.

[Ze-Jamz]

Originally Posted by Plt Off JRB Meaker

Are you using complex engine management?I believe there is a bug in the non cem model making it slow.

If using cem,one small tip,presumably you're rad is are open,if not,it should be,but and it's a big but,you must ensure it's not fully open,as the drag with it being fully open totally kills you're speed,almost the same as an airbrake being applied.

To answer you're question,yes I have had my Mk1a well over 250mph.

I doubt very much you've had it 'way' over...if you have it's news to me and I've probably sent 80/90 hours flying it online with CEM on

[ATAG_Dutch]

I concur.

Tried this with both mixture settings but couldn't sustain any more than 250-ish.

http://www.youtube.com/watch?v=OpT8Oh9aQPE

[furbs]

I might have missed it, but has Luthier ever spoken about why the aircraft perform this way?
maybe different engines? fuel?

How can they be so off?

[ATAG_Dutch]

I don't think there's been a statement regarding the performance of the aircraft, but 30mph at sea level and 10,000ft in altitude performance is a fair old chunk!

Here's a nice link;

http://www.spitfireperformance.com/spit1vrs109e.html

[furbs]

So its not 60MPH its 100 MPH off what it should be, same with the 109.

Just thinking thats why were not hitting the right heights as well.

Spit 1a should be getting 360MPH and 31.000 ft

Crazy stuff.