Author Topic: Yakovlev Yak-3  (Read 1216 times)

Offline 321BAR

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Re: Yakovlev Yak-3
« Reply #30 on: July 06, 2011, 11:36:29 PM »
Spit IX is a 1942 fighter, Ki-84 is crippled by bad fuel and the F4U would have some distinct performance advantages and disadvantages against the Yak-3.  Remember, the WWII Yak-3 was powered by the same ~1200hp engine as the Yak-9T.  It was the post war Yak-3 powered by the ~1500hp engine our Yak-9U has that put up the nearly 5,000ft/min.   The Yak-3's increased performance on the same engines was due to lower weight and better streamlining.
Um, no.
how much lighter was the Yak 3 to the 9? because i believe it'd be more stable than the 9U and easier to handle
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Offline Debrody

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Re: Yakovlev Yak-3
« Reply #31 on: July 07, 2011, 07:12:47 AM »
Spit IX is a 1942 fighter, Ki-84 is crippled by bad fuel and the F4U would have some distinct performance advantages and disadvantages against the Yak-3.  Remember, the WWII Yak-3 was powered by the same ~1200hp engine as the Yak-9T.  It was the post war Yak-3 powered by the ~1500hp engine our Yak-9U has that put up the nearly 5,000ft/min.   The Yak-3's increased performance on the same engines was due to lower weight and better streamlining.
so, the jaks takeoff weight was around 5000 pounds, according to the wiki  (someone post a data from a reliable source plz)
Its an AMAZING little number, 1100 pounds less than the 109F and about the same as a light a6m5.
BUT
the Jaks wing area is even less than the 109Fs, 14.85 m3 vs 16.05m3, also the 109F has 1350 horses under the hood vs the Jaks 1200. I except very simmilar flight characteristics from theese numbers when the jak is a little bit more maneuverable but slower than the 109F. Also i "think" (speculation light on) that the jak had a very short flight time.
 :salute
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Offline 321BAR

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Re: Yakovlev Yak-3
« Reply #32 on: July 10, 2011, 08:22:07 AM »
how much lighter was the Yak 3 to the 9? because i believe it'd be more stable than the 9U and easier to handle
bump for answer?
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Offline Tilt

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Re: Yakovlev Yak-3
« Reply #33 on: July 10, 2011, 11:48:15 AM »
bump for answer?

Yak 3 (VK 105 PF 2 @1250 / 1290 hp) had an all up weight of approx 2675kg
Yak 9U  ( VK107A @ 1500 hp) had an all up weight of approx 3204 to 3227 kg (depending upon source)

btw

The VK 105 pF 2 was not available for other air craft (other than the Yak 3) until November 44 hence our Yak9T would have had the VK105 PF @ 1180 hp ( approx 3025 kg all up)
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