Aces High Bulletin Board
General Forums => Aircraft and Vehicles => Topic started by: Bark0 on May 10, 2009, 11:21:37 AM
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Ive been having a few questions in my mind the last few days that need answers. All comments welcome.
1) What was the last Propeller driven plane made for the US Army?
2) How many Spitfire Mk''s were there?
3) Is there any proof that the Airfields we use In-game were Historicaly Used in WWII?
4) Is it true that there was a 262 with swept back wings?
5) How many Models of the P-51 Were made?
6) was there a plane in WWII that only had 2 Propeller blades that was used in combat?
7) Did Pilots in WWII set their Altimeter to their height or Sea level?
8) if Japan knew the A6M's wings would catch fire easily why didn't they fix it Immediately rather than let it be?
9) what is the Airscoop under the P-51 for if the engine is in front of the plane?
10)Why did earlier models of US Aircraft not have a "Bubble" Canopy when people knew you could see better out of them?
11) Was their an F4U with a "Bubble" Canopy?
thank you
:salute
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3-No, they are just AH fields, nothing historical about 'em.
8-The Japanese knowingly sacrificed armor protection for more speed and maneuverability. No self-sealing fuel tanks, no pilot protection, etc.
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11. Yes, it was built by goodyear under the designation FG-2.
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4) Yeah... the production model.
6) Lots.
Ex. the Bayerische Fleugzeugwerke Bf. 109C and D
(http://upload.wikimedia.org/wikipedia/commons/6/6e/Bundesarchiv_Bild_101I-379-0015-18%2C_Flugzeuge_Messerschmitt_Me_109_auf_Flugplatz.jpg)
Polikarpov I-16 (and the I15, I153 etc)
(http://upload.wikimedia.org/wikipedia/commons/f/f9/OSH2003_Polikarpov_I-16.jpg)
FIAT CR.32
(http://upload.wikimedia.org/wikipedia/en/d/d7/Fiat_CR32.png)
And others.
9) I believe it's just the radiator intake. Few inline engines had the radiator in the front, the only example that was commonly used in this configuration that I can think of off of the top of my head was the Junkers Jumo 213.
10) I would imagine it had something to do with the manufacturing process.
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8-The Japanese knowingly sacrificed armor protection for more speed and maneuverability. No self-sealing fuel tanks, no pilot protection, etc.
And range. Mitsubishi was handed a design requirement so harsh that Nakajima declined to even try to meet it. The fighter had to have two 20mm cannon and two 7.7mm machine guns, do more than 311mph, have a radio, be exceptionally manueverable and have a range with drop tanks somewhere in the 1800 mile area on a 900hp engine.
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1) The US Army still uses several types of propeller driven aircraft, most
notably the C-12 aka the Raytheon/Beechcraft Kingair 200.
4) Yes...all 262s had swept wings
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Ive been having a few questions in my mind the last few days that need answers. All comments welcome.
1) What was the last Propeller driven plane made for the US Army?
Trick answer? USAAF changed to USAF in 1947. The Air Force is still operatig propeller driven aircraft today. :D
2) How many Spitfire Mk''s were there?
The last production Spitfires were the Mk. 21, 22, and 24. The Equivalent Navy models were the Seafire F Mk. 45, 46, and 47
3) Is there any proof that the Airfields we use In-game were Historicaly Used in WWII?
No
4) Is it true that there was a 262 with swept back wings?
262's wings are swept, a little.
5) How many Models of the P-51 Were made?
Production Models: Mustang I; P-51/Mustang IA/F-6A; A-36; P-51A/Mustang II/F-6B; P-51B/C/Mustang III/F-6C; P-51D/K/Mustang IV/F-6D/K; P-51H Prototypes and Non-Production: NA-73X; XP-51F; XP-51G; XP-51J; P-51L; P-51M
6) was there a plane in WWII that only had 2 Propeller blades that was used in combat?
Early in the war. See above. (They flew biplanes too. :O)
7) Did Pilots in WWII set their Altimeter to their height or Sea level?
8) if Japan knew the A6M's wings would catch fire easily why didn't they fix it Immediately rather than let it be?
Less weight = more speed or manuverability. Compromises. If you can't be shot, what difference does it make if the plane catches fire. It won't get the opportunity to.
9) what is the Airscoop under the P-51 for if the engine is in front of the plane?
Radiator. It's back behind the pilot. Allison and Merlin engines are inline cylinder, water cooled engines. Like in a car.
10)Why did earlier models of US Aircraft not have a "Bubble" Canopy when people knew you could see better out of them?
Technology and cost. Blow glass canopies were still being developed and perfected. First used on Spitfires, just the sliding part over the pilot vs. individual, framed panels.
11) Was their an F4U with a "Bubble" Canopy?
F2G-1 (They made 10 before they were cancelled)
(http://webzoom.freewebs.com/cafcorsair/Images/History/Production/Don%20Armstrong%20archives.jpg)
thank you
:salute
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10)Why did earlier models of US Aircraft not have a "Bubble" Canopy when people knew you could see better out of them?
A bubble canopy sticking out actually is significantly draggier than a canopy faired into the fuselage. And the cut down fuselage of later P-51Ds and P-47Ds tended to lead to less yaw stability, to the point of adding a ridge to the fuselage of such planes as the 47N to regain some of that stability.
Experience proved that a bubble canopy is worth these costs, however.
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Ive been having a few questions in my mind the last few days that need answers. All comments welcome.
1) What was the last Propeller driven plane made for the US Army?
2) How many Spitfire Mk''s were there?
3) Is there any proof that the Airfields we use In-game were Historicaly Used in WWII?
4) Is it true that there was a 262 with swept back wings?
5) How many Models of the P-51 Were made?
6) was there a plane in WWII that only had 2 Propeller blades that was used in combat?
7) Did Pilots in WWII set their Altimeter to their height or Sea level?
8) if Japan knew the A6M's wings would catch fire easily why didn't they fix it Immediately rather than let it be?i think because their attitude was such that they assumed that there would never be an enemy behind them to take a shot.
9) what is the Airscoop under the P-51 for if the engine is in front of the plane?engine coolant radiator was there, and (i think) engine oil cooler wee placed inside of this scoop.
10)Why did earlier models of US Aircraft not have a "Bubble" Canopy when people knew you could see better out of them?
11) Was their an F4U with a "Bubble" Canopy?
thank you
:salute
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2) How many Spitfire Mk''s were there?
Spitfire fighter marks that saw wartime service:
Mk I (1,569 produced, Merlin II/III engine)
Mk II (921 produced, Merlin XII engine)
Mk V (6,480 produced, Merlin 45,46,50,55 engine)
Mk VI (100 produced, Merlin 46/47 engine)
Mk VII (140 produced, Merlin 61,64,71 engine)
Mk VIII (1,659 produced, Merlin 61,63,70 engine)
Mk IX (5,948 produced, Merlin 61,63,63A,70 engine)
Mk XII (120 produced, Griffon III/IV engine)
Mk XIV (944 produced, Griffon 61,66,65 engine)
Mk XVI (1050 produced, Packard Merlin 266 engine)
Mk XXI (120 produced, Griffon 65/66 engine)
Dedicated photo recon marks seeing wartime service:
PR X (Mk VII conversion, 16 produced)
PR XI (MK IX conversion, 471 produced)
PR XIX (Mk XIV conversion, 225 produced)
There were also a plethora of other conversions, both unarmed and armed. There were at least five different conversions of Mk Is and then there were the FR (Fighter Reconnaissance) Mk IXs, and FR Mk XIVs, as well as the PR XIII (converted Mk I/II/V airframes with 4 .303s retained, dedicated to low level recon), PR Mk IXs ( standard Mk IX with guns removed and cameras installed).
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9) what is the Airscoop under the P-51 for if the engine is in front of the plane?
(http://img154.imageshack.us/img154/5058/p51.png)
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1) What was the last Propeller driven plane made for the US Army?
(http://capitalpr.ca/wp-content/uploads/2007/02/C_2D130J.jpg)
4) Is it true that there was a 262 with swept back wings?
All 262s had swept wings...
5) How many Models of the P-51 Were made?
* NA.73X Prototype: One built
* P-51: 150 built
* P-51A: 310 built at Inglewood, California
* P-51B: 1,988 built at Inglewood
* P-51C: 1,750 built at Dallas, Texas
* P-51D: A total of 8,156 were built: 6,502 at Inglewood, 1,454 at Dallas and 200 by CAC at Fisherman's Bend, Australia
* XP-51F: Three built
* XP-51G: Two built
* P-51H: 555 built at Inglewood
* XP-51J: Two built
P-51D being assembled, Inglewood CA.[67]
* P-51K: 1,500 built
* P-51L: None built - cancelled
* P-51M: One built at Dallas
* Mustang Mk.I: 620 built
* Mustang Mk.III: 852 built
* Mustang Mk.IV: 281 built
* Mustang Mk.IVA: 595 built
6) was there a plane in WWII that only had 2 Propeller blades that was used in combat?
Yes, many.
8. if Japan knew the A6M's wings would catch fire easily why didn't they fix it Immediately rather than let it be?
A6M5s were fitted with automatic CO2 fire extinguishers. IIRC.
The pilots could also flood the fuel tanks with CO2 to help prevent fires.
Also to increase range, speed, and maneuverability.
10)Why did earlier models of US Aircraft not have a "Bubble" Canopy when people knew you could see better out of them?
The process of making bubble canopies was not yet refined.
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On an interesting side note. Read a design book on the Mustang several years ago and this stuck in my mind.
When the rear door of the scoop beneath a P-51 was opened, the air expanded after it was heated and passed through the radiator. This gave enough thrust to counteract the drag that the scoop created.
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On an interesting side note. Read a design book on the Mustang several years ago and this stuck in my mind.
When the rear door of the scoop beneath a P-51 was opened, the air expanded after it was heated and passed through the radiator. This gave enough thrust to counteract the drag that the scoop created.
Spitfire and Mosquito radiators are supposed to do that too. I don't think they worked very well on the Spitfire though.
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8: Japan suffered from a shortage of materials and the metal construction of their planes contained a large amount of magnesium which lends itself easily to initiating fires when struck by bullets.
9: The dual-purpose (oil and glycol) cooler of the P-51 is designed to add thrust and so it had to be placed somewhere at the center of the aircraft.
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Don't all radiators create some thrust as air passes through them?
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12. why did kamikaze pilots wear helmets?
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thank you all for the answers so far.
As for the 262, I mean Swept back like F-14 Tomcat's Swept back wings. Was their one that was simalar to the F-14's Swept back design.
:salute
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thank you all for the answers so far.
As for the 262, I mean Swept back like F-14 Tomcat's Swept back wings. Was their one that was simalar to the F-14's Swept back design.
:salute
You mean the variable geometry wings (I believe that's the proper technical term, someone may correct me on this though...)? Where the wings have two positions, for low and high speed flight (or however they vary, I'm sure someone will correct me on that :D ).
I think the first aircraft to incorporate that was the F-111.
Swept wings refer to the wings being angled backward, fixed in place at the fuselage. It helps with compressibility when approaching the speed of sound.
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Don't all radiators create some thrust as air passes through them?
No the first to do so was the P40 but the most efficient was the P51.
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"Don't all radiators create some thrust as air passes through them?"
Yes they do by the expansion of the heated air. The point is how effective the heat exchange is and how big is the inlet drag. In P-51 the inlet was built outside the fuselage boundary layer in non-turbulent airflow and the inlet could be kept relatively small, thus the exit of the heated air could negate much of the resulting drag.
10)Why did earlier models of US Aircraft not have a "Bubble" Canopy when people knew you could see better out of them?
Manufacturing was probably one factor but bubble canopy is not a problem free feature aerodynamically. Because of the uneven airflow behind it it may cause an uneven airflow around the rudder leading to stability problems, usually at high speed. Later on it was noticed that despite this disadvantage the ability to see well to 6o'c was far more important.
"12. why did kamikaze pilots wear helmets?"
Helmets? That puny brain bucket made out of leather used mainly to hold headphone speakers and oxygen-mask? Dunno, a habit maybe?
-C+
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I dont mean wings that go back and fourth to regular Position(s) I mean Permanantly fixed. it kind of looks like a F-14's wings swept back only on a 262. I saw a picture of it somewhere and had an Idea if it was photoshopped.
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Do you mean Me262 HG?
http://www.faqs.org/docs/air/avme262.html
-C+
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yea that's it, only it was a Picture with it camouflaged and in Real Life
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12. why did kamikaze pilots wear helmets?
That is probably one of the greatest mysteries that will never be answered.
ack-ack
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8: Japan suffered from a shortage of materials and the metal construction of their planes contained a large amount of magnesium which lends itself easily to initiating fires when struck by bullets.
9: The dual-purpose (oil and glycol) cooler of the P-51 is designed to add thrust and so it had to be placed somewhere at the center of the aircraft.
Shortage of materials (Japan wasn't suffering from shortages of material during the time the Zero was being designed (2nd Sino-Japanese War)) did not increase the likelihood of the Zero catching fire, nor the T-7178 aluminum alloy specially developed by the Japanese for the Zero. What did increase the chances of the Zero catching fire was the lack of self sealing fuel tanks.
US pilots would often aim for the back of the cockpit because that was the location where the oxygen bottles was stored on the Zero. The oxygen bottles would explode, usually killing the pilot and the shrapnel and/or would easily puncture the fuel tanks causing a fire.
ack-ack