Aces High Bulletin Board
General Forums => Aircraft and Vehicles => Topic started by: bozon on April 26, 2007, 11:16:09 AM
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Nice story I found on the web. Canadian FB-VI pilot doing daytime ranger raids:
http://findarticles.com/p/articles/mi_qa3897/is_200406/ai_n9455871/pg_1
Don't forget to occasionally remind HTC to fix the mossie:
http://forums.hitechcreations.com/forums/showthread.php?s=&threadid=200332&perpage=25&pagenumber=1
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Don't forget 'Cats Eyes' Cunningham
http://news.bbc.co.uk/1/hi/uk/2146171.stm
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Looking forward to the Mossie getting an update. :aok
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Originally posted by Furball
Don't forget 'Cats Eyes' Cunningham
http://news.bbc.co.uk/1/hi/uk/2146171.stm
Didn't he do a lot of work in Beau's as well?
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Yes, lots :)
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Top scoring Mosquito ace was Wing Cdr Branse Burbridge of 85 Sqn, with 21 kills, all in Mosquitos.
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Mossie!
(http://www.luftfart.museum.no/Utstillinger/Images_fly_2006/Mosquito_AU.jpg)
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What's that port above the MGs?
Guncam?
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What's wrong with Mossies flight model??
-C+
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The Center of Gravity is reportedly off by a bit. It causes that wierd tail stall sometimes.
There is no armor at all for the crew despite it having a bulletproof windscreen, armored seats and a fwrd armored bulkhead. It offers as much crew protection in game as a Zero, which is to say, none.
...and it would just be cool to get the graphic update on it as well.
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Mossie!
(http://www.raf.mod.uk/bombercommand/images/h1575.jpg)
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Something else is wrong, as many mossie advocates can explain much better than I can; something about our model having baffles installed in order to reduce nighttime visibility from engine exhausts. Reduces horsepower/speed and acceleration...
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I took the mossie up for a ride in H2H, and man I gatta say I pwnd alot of people with that mossie. Such a great plane to fly. I took alot of 20mm damage and was still flyable.
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CoG,pilot wounds and the zeroesk engine fires should be looked at.
No reason to have flamedampers,no night, but this will only add a little of speed.
I'd ask for the MK XVIII but this is the wrong forum.:O
Maybe,just maybe after the B25 is done the Mossie FM can be addressed.:aok
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The flame dampers reduce maximum speed by 15-20mph.
The difference between 337mph and 357mph on the deck is huge. Think of the number of fighters that can run down a 337mph aircraft but not a 357mph aircraft.
Here is a list from memory:
Bf109G-2
Bf109G-6
Bf109G-14
F4U-1
F4U-1A?
F4U-1C
F4U-1D
Fw190A-5
Fw190A-8
Fw190F-8
Ki-84-Ia
La-5FN
P-47D-11
P-47D-25
P-47D-40
P-38J
P-38L
Spitfire Mk VIII
Spitfire Mk XIV
Spitfire Mk XVI
Yak-9U
That is not a small list.
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Originally posted by Krusty
What's that port above the MGs?
Guncam?
Yes, that is where the Mossie's gun cam is located. It used G42 or G45 cameras.
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Originally posted by Karnak
That is not a small list.
Not only a long list but it also include some key areana planes: Spitfires, 109Gs, Ki84 and F4U. 20 mph is a little optimistic perhaps, but every mph will be appreciated. Getting rid of the swinging tail and deep stalls due to CoG is even more important. Not to mention it turns the combat-trim to a death device for those who use it. Those are real game breakers.
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Ok, here is a 10mph gain to 347mph list (and every Mossie pilot I've spoken with says it could hold over 350mph on the deck, so this is low I think):
Bf109G-2
Bf109G-6
Fw190A-5
P-38J
P-38L
P-47D-11
P-47D-25
P-47D-40
Ki-84-Ia
Spitfire Mk VIII
Spitfire Mk XVI
Even the pessimistic list has some major players in it, P-38J and L, Ki-84 and Spits 8 and 16.
More realistically we could expect a deck speed in the 350 to 355mph range.
All of this hinges, of course, on HTC finding new data about it.
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347 seems spot on according to reports,seems to have a sharp rise in speed below 4k showing 352 around 3k.
Although,it mentioned this plane may have had more drag than ussual:noid
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I heard 7-11 mph myself, but I'll even take that with a CoG fix.
Make sure you arent quoting the speed loss from the matt black paint they ended up not using on the Mossie NFs, it had too much drag and they went back to a semi-gloss black finish.
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"All of this hinges, of course, on HTC finding new data about it."
Aircraft and Armament Experimental Establishment Boscombe Down.
Mosquito FB. Mk. VI. HJ.679 (2 Merlin 25's) Brief Performance trials.
http://www.wwiiaircraftperformance.org/mosquito/hj679.pdf
De Haviland Aircraft Co. Ltd. Hatfield Aerodrome 20 September 1943.
D. H. Mosquito Mk. VI. (Merlin 25) HJ.679.
Tests carried out at Hatfield to check the Maximum Level Speed obtained in previous tests.
http://www.wwiiaircraftperformance.org/mosquito/hj679-dh.pdf
Aircraft and Armament Experimental Establishment Boscombe Down 1 February 1944
Mosquito FB. Mk. VI. HX.809 (2 Merlin 25's)
Level speed performance at normal & increased boost rating.
http://www.wwiiaircraftperformance.org/mosquito/hx809.pdf
Mosquito FB VI Tactical Trials.
http://www.wwiiaircraftperformance.org/mosquito/Mosquito-VI-tactical.pdf
Mosquito speeds at +18lbs and +25lbs boost.
http://www.wwiiaircraftperformance.org/mosquito/mosquito-performance-aussie.pdf
Rolls-Royce single stage two speed Merlin, power chart.
http://www.wwiiaircraftperformance.org/mosquito/merlin25-powercurve.jpg
Mosquito FB VI Pilot’s notes engine operating data.
http://www.wwiiaircraftperformance.org/mosquito/mosquito-vi-pilot-notes-op-data.jpg
Sea Mosquito (very similar to the FB VI ) RN performance data.
http://www.wwiiaircraftperformance.org/mosquito/sea-mosquito.pdf
Neil.
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Note that the graph at the end of Neil's first link only has a curve for the M.S. (low-level) max speeds with drop tanks on. As the remainder of the graph and the narrative demonstrate, dropping the tanks added speed.
Glad you posted Neil - am currently reading a book ("Night Fighter Over Germany") by a former member of 239 Squadron, 100 Group, who makes two references in the text to 150-octane fuel. Matches up with Lew Brandon's book ("Night Flyer") who also says 157 Sqn. stayed on 150-octane when it went back to ops over the continent after the V-1 scourge.
Cheers,
Scherf
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Hi Scherf
Glad you posted Neil - am currently reading a book ("Night Fighter Over Germany") by a former member of 239 Squadron, 100 Group, who makes two references in the text to 150-octane fuel. Matches up with Lew Brandon's book ("Night Flyer") who also says 157 Sqn. stayed on 150-octane when it went back to ops over the continent after the V-1 scourge
Thanks for the heads up!
Neil.
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Niel,
I have most of those charts, though not the reports, and the problem is that none of them, so far as I can see, cover a Mosquito FB.Mk VI with Merlian 25s, ejector stacks and at +18lbs boost other then the HS679 tests which they only coment on it being 10-15mph below average for it's type on those settings.
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ive landed 27 kills once when i decided to hit h2h and was in a considerably good room in terms of player skill its an amzing fighter only problem is with the tail stall/ falt spin
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now that I have a dual throttle joystick, fix the mossie please :)
I can't wait to have a formation of bomber mossies :D
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Originally posted by Neil Stirling
Hi Scherf
Glad you posted Neil - am currently reading a book ("Night Fighter Over Germany") by a former member of 239 Squadron, 100 Group, who makes two references in the text to 150-octane fuel. Matches up with Lew Brandon's book ("Night Flyer") who also says 157 Sqn. stayed on 150-octane when it went back to ops over the continent after the V-1 scourge
Thanks for the heads up!
Neil.
No worries Neil - nothing you could base an academic paper on, just some anecdotes, but nonetheless.
Cheers,
Scherf
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Hi Scherf.
Please check your pm.
Neil.
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Heya:
Done, reply sent.
Cheers,
Scherf
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Karnak
Check out the DH company test, carried out because of the poor results obtained by Boscombe Down:-
http://www.wwiiaircraftperformance....to/hj679-dh.pdf
It shows the original April 1943 HJ 679 test result (in red) no tanks and ejector exhausts. Plus 18 lbs boost, 371mph at 5,000ft and 384mph at 12,400ft.
Neil.
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Neil,
I am getting an error message when I try to open that PDF file.
I would love to read over that report though.
Thanks.
EDIT:
Got the PDF file from your earlier post.
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Hatfield tests on HJ679, no tanks, ejector exhausts, +18lbs boost, all up weight 19,100lbs:
5,000ft: 371mph
12,400ft: 384mph
Karnak's tests on Aces High Mosquito Mk VI, no tanks, saxaphone ducts, +18lbs boost (gauge read +14lbs at 50ft and 5,000ft and +10lbs at 12,400ft, but I think this is an error in the gauge model, like it is using a Merlin 21 or 23 FTH rather than the Merlin 25s its performance indicates it has), all up weight 19,100lbs:
50ft: 338mph
5,000ft: 362mph
12,400ft: 376mph
If those ratios hold, HJ679 would do 347 or 348mph at 50ft. Still a bit slower than the claims of the Mossie 6 pilots I have had the luck to recieve replies from. Each of them, with one exception, said it would do a little over 350mph at sea level. The one exception claimed over 370mph, but I think he was looking at one of the air speed indicators that de Haviland had warned would read about 20mph too fast at high speeds.
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Hi Karnak.
I have some more bits and bobs.
This from AVIA 6/5817
NF XIX ejector exhausts at 3,000ft
348mph +18lbs boost
377mph +25lbs boost.
AIR 11/52
NF XIX +25lbs boost
SL 363mph
1,500ft 364mph
3,000ft 362mph
4,000ft 367mph
AVIA 6/5594
NF XIII Merlin 25 +25lbs boost "Test results"
Low supercharger, 360mph at altitudes up to 5,300 ft.
High supercharger, 377mph.
Neil.
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Yowee - fast.
The significant thing about the NF.XIX (for AH purposes) is that it used the same Merlin 25 as was standard on the FB.VI, and also of course had the latter's flat windscreen.
Am tracking down those bits & pieces for you Neil, will try to PM them to you. I don't know how many words the PMs are limited to - might need to split them across a couple.
Cheers,
Mark