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Author Topic: Fw190 Speed Testings for AH2  (Read 1816 times)

Offline Kweassa

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Fw190 Speed Testings for AH2
« on: May 16, 2005, 04:52:24 AM »
*Deck speed test alt: 100ft (+/-10ft)
*Fuel: 100%fuel, no fuel burn
*All ordnance loadout tested with cfg1(configuration1)



-Fw190A-5-
cfg1(MG151/20 x2, MG-FF x2): 339mph
cfg1 @ 21,000ft: 406mph
cfg2(MG151/20 x2): 339mph

w/bombrack(bomb intact(500kg)): 322mph (-17mph)
w/bombrack(bomb dropped): 330mph (-9mph)

w/WGr21(rockets intact): 319mph (-20mph)
w/WGr21(rockets fired): 323mph (-16mph)


-Fw190A-8-
cfg1(MG151/20 x4): 351mph
cfg1 @ 19,000ft: 405mph
cfg2(MG151/20 x2): 351mph
cfg3(MG151/20 x2, MK108x2): 350mph

w/bombrack(bomb intact(500kg)): 334mph (-17mph)
w/bombrack(bomb dropped): 345mph (-6mph)

w/WGr21(rockets intact): 330mph (-21mph)
w/WGr21(rockets fired): 334mph (-17mph)


-Fw190F-8-
cfg1(MG151/20 x2): 351mph
cfg1 @ 19,000ft: 403mph
w/bombrack(bomb intact(500kg)): 335mph (-16mph)
w/bombrack(bomb dropped): 347mph (-4mph)
w/rail(bombs intact(50kgx4)): 331mph (-20mph)
w/rail(bombs dropped)): 349mph (-2mph)
w/PB1(rockets intact): 336mph (-15mph)
w/PB1(rockets fired): 349mph (-2mph)


-Fw190D-9-
cfg1(MG151/20 x2): 375mph
cfg1 @ 21,000ft: 427mph
w/bombrack(bomb intact(500kg)): 355mph (-20mph)
w/bombrack(bomb dropped): 367mph (-8mph)




Interesting observations:

* The added drag of external equipments is the least with the F-8. Only -4 mph with empty bomb rack, and -2 mph with empty rocket rails...!

* No difference in speed between 2x 20mm load outs and 4x 20mm loadouts for the A-5 and A-8. Maybe HTC forgot to add in(or remove) weights for those two guns, or maybe the weight of the guns and ammo for 2x 20mms isn't as much as we would expect.

* Only about 1mph speed difference for the A-8 when equipped with MK108. I guess the MK108 isn't really much heavy.

* The weight/drag of the 500kg bombs, seem to effect speed by 8~12mph.

* The weight/drag of 2x WGr21 rockets, seem to effect speed by 4mph. Thus, roguhly each rocket would be equivalent -2mph from the top speed when inside the pod tube.

* The weight/drag of 12x PB1 rockets, seem to effect speed by 13mph. Thus, roughly each rocket is equivalent to -1mph from top speed.
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Offline bunch

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Fw190 Speed Testings for AH2
« Reply #1 on: May 16, 2005, 05:17:27 AM »
I dont think adding weight without adding drag (i.e. internal guns) shouldn't effect top speed, only acceleration, unless the weight move the CG enough to change Ao'A
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Offline GScholz

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Fw190 Speed Testings for AH2
« Reply #2 on: May 16, 2005, 06:05:33 AM »
More weight = more lift needed = more AoA = more drag = less speed.
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Offline bunch

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Fw190 Speed Testings for AH2
« Reply #3 on: May 16, 2005, 06:43:15 AM »
190 negative Ao'A at high speed = no factor.
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Offline GScholz

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Fw190 Speed Testings for AH2
« Reply #4 on: May 16, 2005, 07:17:43 AM »
Negative AoA would produce negative lift = crash. Learn a little about aerodynamics.
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Offline GScholz

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Fw190 Speed Testings for AH2
« Reply #5 on: May 16, 2005, 07:21:03 AM »
... and why do you have a link to this forum in your sig?
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Offline Schutt

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Fw190 Speed Testings for AH2
« Reply #6 on: May 16, 2005, 07:29:17 AM »
Negative AoA does not necessaryly produce negative lift. Some profiles give still some lift at -2 degrees AoA.

Increasing wight a bit does not matter much for the top speed.
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Offline GRUNHERZ

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Fw190 Speed Testings for AH2
« Reply #7 on: May 16, 2005, 07:32:20 AM »
Pretty silly that D9 loses the most speed from its DT rancj considering it's the most aerodynaic DT rck of all FW190 by far.
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Offline GScholz

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Fw190 Speed Testings for AH2
« Reply #8 on: May 16, 2005, 07:34:48 AM »
No it does not matter much, but you can't add weight and not have it affect performance. If that was true it wouldn't matter how much weight you add.
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Offline MANDO

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Fw190 Speed Testings for AH2
« Reply #9 on: May 16, 2005, 04:24:14 PM »
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Offline Flyboy

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Fw190 Speed Testings for AH2
« Reply #10 on: May 16, 2005, 04:45:06 PM »
thats interesting... i just did an offline test for the P51b and i was suprised to discover that the DT rack of the pony doesnt hurt its speed at all.
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Offline Schaden

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Fw190 Speed Testings for AH2
« Reply #11 on: May 16, 2005, 04:48:04 PM »
Pony will be gelded after it gets redone - only 190's for now.....
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Offline Bodhi

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Fw190 Speed Testings for AH2
« Reply #12 on: May 16, 2005, 04:48:48 PM »
Quote
Originally posted by GScholz
Negative AoA would produce negative lift = crash. Learn a little about aerodynamics.


wrong.

GS, some minimal aoa's that are negative still produce minimal lift... ie enough to maintain straight and level flight.
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Offline TAK@JG1

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I think that Dora is under modeling.
« Reply #13 on: May 16, 2005, 05:21:36 PM »
I support the opinion of the author on this site. :mad:

http://jagdhund.homestead.com/files/DoraData/horizontalgeschwindigkeiten.htm

Dora of AH is "4 - Sonder - Notleistung (B4) mit Laderdruckerhoehung mit MW50 u. 1.8ata. ".

For speeds without the ETC 501 ordanace rack add 8 km/h (5 mph) below and 12 km/h (7.5 mph) above critical engine (6.5km). Since the ETC 504 had a slightly better drag coefficient I would estimate speed penalty of about 6km/h (3.7mph)to 10km/h(6.2mph).
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Offline MANDO

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Fw190 Speed Testings for AH2
« Reply #14 on: May 16, 2005, 05:29:20 PM »
That site ALSO indicates 377 mph at sea level WITH (mit) ETC 504, 383 mph WITHOUT ETC 504.
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