Quote:
Originally Posted by winny
The RL data for a mk I (if it's the data usually quoted, top speed 363mph) was taken from a Spitfire that was at least 300 lb lighter than a mkI in Battle of Britain trim. It was around 5,800 lb as opposed to 6,100 lb (ish). It was the eight gun version, didn't have the pilot armour, bullet proof windscreen ( reckoned to cost 3-4 mph) or the IFF aerial (again another 2-3 mph). The only reference I've seen to it is by Dr Alfred Price. He says in "Spitfire in combat" that the top speed was closer to 350 mph for a BoB era MkI. It's a bit vague, I know, but does highlight how difficult it is to get accuracy. He knows his Spits though..
|
On that note..
Differences in weight typically affect the ROC results much more than the TSPA results..
That is to say you may not notice a difference (percent difference would be small) in TSPA due to a little weight change, but, you will notice it in an ROC test.
08-29-2012, 11:47 PM
Threaded Mode