Simviation Forum - 35,000 ft in a VII

Reply #45 - Nov 17^th, 2003 at 9:54am

fido Offline
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No way, I struggled just ot get to 41,088, noticed we all have slightly different textures on our aircraft. Wonder if they are all the same under the skin?

Fido

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Reply #46 - Nov 17^th, 2003 at 10:03am

Wing Nut Offline
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I dumped all of the fuel except for about 42 pounds(25% in each wing tank) and changed the pilot weight from 200 to 175 and that helped a small bit. Flight dynamics that high are really strange. There were times I would actually be pushing down on the stick and it would cause me to go up. ???

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Reply #47 - Nov 17^th, 2003 at 10:24am

fido Offline
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I'd give the fuel changes a try, but I struggled so hard for that last 88ft I don't think it would help. I even tried using flaps, h_ll, I was only going 76 KIAS. Wonder if a full on Photo Recon would do better, maybe a Merlin71 or a Griffon powered Mk XIX?

Fido Roll Eyes

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Reply #48 - Nov 17^th, 2003 at 11:00am

Hagar Offline
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Quote:

WHERE ARE THE CHIPS?????????????????????????

I thought all pommy food has chips?

Another common misconception although chips are popular among the youngsters. I like them occasionally myself but not with every meal. Kids all over the world seem keen on all sorts of junk food I wouldn't even look at. After seeing the common sterotypes & misinformation the media are so fond of I often wonder what impression you guys have of the average Brit. People of my & Fozzer's generation would prefer a good traditional roast dinner. 8) Wink

Quote:

No way, I struggled just ot get to 41,088, noticed we all have slightly different textures on our aircraft. Wonder if they are all the same under the skin?

Fido

I believe Ozzy's shots are of the original CFS2 textures in FS2002. The same textures might look different in FS2004 due to the different graphics engines. From what I've seen of the FS2004 "updates" the textures look garish & might have been modified.

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Reply #49 - Nov 17^th, 2003 at 11:57am

HawkerTempest5 Offline
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Quote:

I'd give the fuel changes a try, but I struggled so hard for that last 88ft I don't think it would help. I even tried using flaps, h_ll, I was only going 76 KIAS. Wonder if a full on Photo Recon would do better, maybe a Merlin71 or a Griffon powered Mk XIX?

Fido Roll Eyes

Well Fido pal, the highest recorded altitude for a Spitfire was recorded by a PR MkXIX at 51,500ft.

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Reply #50 - Nov 17^th, 2003 at 1:14pm

ozzy72 Offline
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With the maximum possible fuel load after a speed climb to altitude the VII could whizz along at 40,000ft. This was the maximum accepted practical altitude, obviously as she burnt fuel she would float higher (I checked my Spitfire bible earlier Grin

)
Roger is right on the altitude record Wink

Mk VIIs served until 1947 as meterological aircraft. Amazing bit of kit Shocked

But then hey, its a Spitfire Wink

There are two types of aeroplane, Spitfires and everything else that wishes it was a Spitfire!

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Reply #51 - Nov 17^th, 2003 at 1:29pm

aeronut Ex Member

For the benefit of Hagar and Foz-Your 'Meals on Wheels'will be starting next week Grin

(Without the Chips,Pomme frites or Fries Wink

)

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Reply #52 - Nov 17^th, 2003 at 5:20pm

C Offline
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I believe the highest interception of WW2 was made by a Mk VII by Prince Emanuel Galitzine (who passed away late last year or earlier this year) against a JU-86.

I can't fine the exact figure online, but I believe it was in the region of 37,000-39,000ft

Charlie

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Reply #53 - Nov 17^th, 2003 at 5:29pm

Wing Nut Offline
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I'll tell you what. Fozzer, why don't you fix us all dinner, freeze it, then send it out overnight UPS. Then we can all heat it and have a nice Simviation dinner all at the same time! Grin

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Reply #54 - Nov 17^th, 2003 at 5:55pm

fido Offline
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hey Hawker I swear the MkXIX thing was just a lucky guess. Hope the de-froster worked and the pilot had a good heater. Roll Eyes

Fido

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Reply #55 - Nov 17^th, 2003 at 10:44pm

Guruswarmyoz Offline
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According to the book figures that i have (from the book: Aircraft of WW2, by S Wilson):

Mk VII
Max Level Spd (MPH TAS) 408mph @ 25,000 ft
Service Ceiling: 43,000Ft.
The HF Mk VII is a presurised high Alt fighter powered by either a Merlin 64 or a Merlin 70 of 1710HP & 1655HP respectively. The aircraft uses the "B" type wing with extended wing tips.

Mk VI
The Mk VI was the 1st Spitfire to use cabin/cockpit pressurisation to counter the High Alt Ju-86P Recon aicraft used by the Luftwaffe at the time.
Max Spd (MPH TAS) 364 MPH @ 22,000ft
Service ceiling: 39,200Ft
Powerplant: Merlin 47 of 1415HP.
The aircraft uses the "B" type wing with extended wing tips.

Note here: Service ceiling was defined as when the climb rate falls to 100fpm --> this is also used for the service ceiling definition for modern light aircraft. For modern military (i.e. Jet fighters) the service ceiling is defined as i understand it as when the climb rate is 1,000 fpm.
Also note, these figures are for a standard Atmosphere of 15 degrees Celcius and a pressure of 101325 pascals (1013.3 millibars//hectopascals) at sea level and nil wind.

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Reply #56 - Nov 18^th, 2003 at 11:31am

HawkerTempest5 Offline
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Quote:

hey Hawker I swear the MkXIX thing was just a lucky guess. Hope the de-froster worked and the pilot had a good heater. Roll Eyes

Fido

Well Fido pal, the pilot decided to see how high he could go and got upto 51,500ft but was forced to make a rappid decent due to a loss of cabin preassure. On the way down he reached a speed of 690mph (Mach .94) and landed without incident! This is also a speed record for a Piston engin aircraft.
I tried to get a PR MkXIX beyond 40,000ft last night, but my engine quit at 38,500ft because I did not put in quite enough fuel. OOPS Wink

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Reply #57 - Nov 18^th, 2003 at 11:45am

Hagar Offline
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Quote:

hey Hawker I swear the MkXIX thing was just a lucky guess. Hope the de-froster worked and the pilot had a good heater. Roll Eyes

Fido

I think any WWII pilot would tell you the cockpit heating was unreliable even if it was fitted. Heating the guns to prevent them jamming was considered more important than the pilot's comfort.

Quote:

For the benefit of Hagar and Foz-Your 'Meals on Wheels'will be starting next week

(Without the Chips,Pomme frites or Fries )

Thanks Aeronut. I look forward to the first delivery. 8)

Maybe Foz would be more interested in Pippin's suggestion. It might add a few extra pennies to his pension to pay for fuel for his motorbike. Wink

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Reply #58 - Nov 18^th, 2003 at 11:52am

fido Offline
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Hawker
Better you than he, I think if he had both lost cabin preassure, and run out of fuel at 51-5 he would have had more to say than, OOPS. Grin

Fido

P.S. Better luck next time.

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Reply #59 - Nov 18^th, 2003 at 12:02pm

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Has any propellor driven craft ever officially broken the speed of sound? I know there are rumours of it being done in a Thunderbolt in a steep dive, but nothing I've seen that's official...

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