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#1
09-25-2011, 12:00 AM
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Ok I am more in the average climb rate regarding time to 6Km or 20kft
That said 5000ftm seemed impressive to me with a calculated time of 4 min to 20kft witch I hve never heard about  Regarding CAM launches, well you know how stories goes... I hve to dig the book and see. 
Last edited by TomcatViP; 09-25-2011 at 12:19 AM. 
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#2
09-27-2011, 08:29 PM
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Hi guys,
I hve in mind that some of you are waiting for my answer (yeah I am that selfish). However I took some time to re-read some of my earlier post since I am a newborn on CoD forum in the last couple of days and I am pretty sure that I did alrdy give the arguments you cld be waiting for. Look, for height , wide open throttle, Supercharging and 2nd thermodynamic principle... Have fun ! Last edited by TomcatViP; 10-01-2011 at 08:54 PM.
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#3
09-27-2011, 11:05 PM
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A supercharger that can produce 12lb boost at 10000 feet (~full throttle altitude for a Merlin III) can produce about 17lb boost at sea level. A fairly accurate estimate is really simple maths, just divide boost at altitude by pressure at altitude in atmos, in this case ~0.7.
Doesn't mean the engine can handle it. Sea Hurricanes modified for 16lb were not throwaway planes, they were primarily used from carriers with the full intend of repeated use and to my knowledge only from 1942 onwards with the 16lb boost.
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#4
09-27-2011, 11:27 PM
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Ok here we go again
Merlin XX from RR doc WOT at 15000 9lb What means WOT ? At tht height : max flow = max ro *V At sea level ro > ro at alt then ro* V max is LESS (max ur eng can handle) SO less OT -> less Flow -> less air -> less fuel -> less SHP -> less flywheel rpm (THX mother nature or there will had been a prob) -> less max theo HP By teh way as I hev alrdy raised soem of your dat (Spitdotcom atc...) are confusing abt HP and SHP as testing was done static without S/C (tht's all abt the source I hve) As you can see the only way to outsource the most HP of a Merlin in that conditions is to have variable geo (for ex the size of the ducting). It's all abt the Merlin for low alt , the Merlin for med alt and the Merlin for high alt.... Does is sound anything like familiar to you ? Oh and by the way I didn't mention here the temp raise you'd get in the conversion. But I am sure you'd get enough time for a forum search. Some hve been down to the details more than me (I hve in mind some Crump's posts). Feel free to read them too. Huh Yeah pls devs give them their 12lb now tht they will be left with 2lb only late Spits when you'll do that 44 add-on 
Last edited by TomcatViP; 09-27-2011 at 11:33 PM.
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#6
10-01-2011, 03:10 PM
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Quote:
__________________
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#7
10-01-2011, 09:07 PM
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Ok boys. I am fed up with both of u. I don't know why I keep replying as if the point you raise had any sense.
Seems your not there to debate but only to impose your point of view on the Spitfire trough questionable docs, wall of smokes or even insults and bad mouthing. Lol figure what ? I did know how it ends. Not because I am that clever but because I hve alrdy seen the movie : you act always the same on this specific debate  . So argue, raise your point of view, makes this a conversation that we can all share what it seems only you know.
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