Spit/109 sea level speed comparisons in 1.08 beta patch

[Crumpp]

Psyle says:
Sorry if this creates loads of work....

No problem at all. In fact I am going to clean up the sheet and post it so others can use it. It just runs the math for the conditions given.

I wish I was more computer savvy to make it more user friendly. Perhaps some in the community can improve upon it.

The 990 hp comes directly from the RAE.

SUMMARY OF TRIALS

AEROPLANE Spitfire I No. N.3171
SPEC. NO. 16/36
CONTRACTOR Vickers-Armstrong (Supermarine)Ltd.


TYPE Landplane DUTY Single Seater Fighter.

ENGINES. Merlin III Normal B.H.P 950/990 at Rated Altitude 12,250 ft

http://www.spitfireperformance.com/n3171.html

Once I get good engine data on 100 Octane, I will do the estimate.

On these charts the data does not line up. The FTH do not even come close to assume RAM effect.

Level speed - FTH MS Gear = 11,000 ft

http://www.spitfireperformance.com/s...-rae-12lbs.jpg

Engine power estimate at Vmax (RAM effect) shows a FTH MS Gear = 8,000 ft

http://www.spitfireperformance.com/merlin3curve.jpg

Not saying the data is bad, just that this engine does not match this airplane. We need to find the same engine in the same airplane to get good data points.