Pinnacle of Piston fighter: Last US piston fighters vs Spiteful Mk XVI?

Which is the better piston fighter if they both gone to production?

  • XP-72

    Votes: 4 40.0%

  • Spiteful F.16

    Votes: 6 60.0%
  • Total voters
    10
Ronny said:
Do we have any information about spiteful time to altitude ?
All I could see about spiteful is climb rate at 2000ft

Spiteful: 4890 ft/min (24.8 m/s) at 2000 ft. No additional information

XP-72 with twin props: 5250 ft/min (26.67 m/s) at sea level, take 3.8 min to climb to 20,000 ft

P-51H: 5120 ft/min (26 m/s) at sea level, take 4.58 min to climb to 20,000 ft

XP-51G: take 3.58 min to climb to 20,000 ft

F4U-5: 4840 ft/min (24.58 m/s) at sea level, take 4.7 min to climb to 20,000 ft
Click to expand...
Spiteful XIV 4m54s to 20000ft
 
Ronny said:
Thank you but where did you got that number from? I can't find Spiteful climb rate anywhere
Click to expand...
Took it down so long ago I thought it might be from a book. Just searched those most likely, but didn't find anything, so sorry idk. Can only assure that I'm not making it up. Inital climb for the F.15: 24,1m/s btw, again ? source; never thought anybody would ask or that I would have any answer on the subject.
 
Kugelblitz said:
Took it down so long ago I thought it might be from a book. Just searched those most likely, but didn't find anything, so sorry idk. Can only assure that I'm not making it up. Inital climb for the F.15: 24,1m/s btw, again ? source; never thought anybody would ask or that I would have any answer on the subject.
Click to expand...
Thank you alot anyway
 
The Spiteful never entered service. The few that actually flew were used for testing and evaluation. Apparently with different engines and propellers. I'm not so sure firm numbers for a production or "in-service" Spiteful really exist. There are speed and climb rate numbers for particular aircraft but I didn't spot any time to 20,000 feet figures in the Morgan and Shacklady book.
 
perttime said:
The Spiteful never entered service. The few that actually flew were used for testing and evaluation.
Click to expand...

I have no doubt that if the War had lasted another six months the Spiteful would've entered production.
 
The XP-47J was handed over to AAF and arrived at Wright Field, Ohio on 9 December 1944. During flight tests, the AAF was unable to get maximum power from the R-2800 engine. The AAF recorded a speed of only[!] 484 mph (779 km/h) at 25,350 feet (7,727 m) and with the engine producing 2,770 hp (2,066 kW). Near the end of flight testing, the exhaust manifold system had a serious failure while the aircraft was at 36,000 ft (10,943 m). The cause of the failure was the increase in pressure and temperature from the CH-5 turbosupercharger acting upon the unstrengthened exhaust system.

Old Machines press

Most likely the exhaust system was leaking when the AAF "only" got 484 mph. As good as it was the J model was only a test bed and not meant for production, although the higher output engine was later used for the P-47M and P-47N.







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