Curtiss XP-62: Difference between revisions
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{|{{Infobox Aircraft Begin |
{|{{Infobox Aircraft Begin |
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| name = XP-62 |
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| image = XP-62_-_Ray_Wagner_Collection_Image_(28023153805).jpg |
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|image= File:Curtiss XP-62 061024-F-1234P-022.jpg |
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| caption = A Curtiss-XP-62 on the tarmac |
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}}{{Infobox Aircraft Type |
}}{{Infobox Aircraft Type |
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| type = [[Fighter aircraft|Fighter]] [[Interceptor aircraft|interceptor]] |
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| manufacturer = [[Curtiss-Wright]] |
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| designer = |
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| first flight = 21 July 1943 |
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| introduced = |
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| retired = |
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| status = Cancelled 21 September 1943 |
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| primary user = [[United States Army Air Forces]] |
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| more users = |
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| produced = 1943 |
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| number built = 1 |
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| unit cost = |
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| variants with their own articles = |
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}} |
}} |
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The '''Curtiss XP-62''' was a [[prototype]] |
The '''Curtiss XP-62''' was a [[prototype]] single-engine [[interceptor aircraft]], that was built for the [[United States Army Air Forces]], by the [[Curtiss-Wright Corporation]]. It first flew in 1943. |
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The design sought to have an improved high-altitude performance and higher speeds, at all altitudes, which was to be assisted by the 18-cylinder [[Wright R-3350 Duplex-Cyclone]] engine. It was to be armed with four {{cvt|20|mm}} [[autocannon]]s, a heavier armament than contemporary USAAF fighter aircraft, and was fitted with a [[pressurized cabin|pressurized cockpit]]. |
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The maximum level flight speed at 27,000 ft (8,230 m) had to be at least 468 mph (753 km/h). |
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#Maximum level flight speed at {{cvt|27000|ft}} had to exceed {{cvt|468|mph}}. |
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Two [[prototype]]s were ordered; the first designated '''XP-62''' and the second designated '''XP-62A'''. |
Two [[prototype]]s were ordered; the first designated '''XP-62''' and the second designated '''XP-62A'''. |
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On 2 August 1941, the specifications were |
On 2 August 1941, the specifications were amended for the XP-62, reducing the maximum speed to {{cvt|448|mph}} with eight {{cvt|20|mm}} cannons, and increasing the loaded weight by {{cvt|1537|lb}}. |
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During a project review of 1 January 1942, the |
During a project review of 1 January 1942, the specification was again revised, with the loaded weight reduced by eliminating four cannons and removing the [[propeller (aircraft)|propeller]] [[de-icing]] equipment. |
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On 25 May 1942 a contract for 100 P-62 fighters was awarded. |
On 25 May 1942 a contract for 100 P-62 fighters was awarded. However, on 27 July 1942, before production could begin, the contract for the P-62 was terminated (although not, apparently, the XP-62A) because of the effect on deliveries of Curtiss-built [[Republic P-47 Thunderbolt]]s. |
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While work on the XP-62A continued, it progressed slowly, owing to its low priority. Delays in delivery of the pressure-cabin supercharger and engine modifications delayed the first flight until 21 July 1943. Only a limited amount of flight testing was carried out before the XP-62A was canceled on 21 September 1943 and full performance characteristics were not obtained. The prototype was scrapped in early 1944. |
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Before construction could begin, the contract was terminated on 27 July 1942, as it would affect deliveries of urgently needed Curtiss-built [[Republic P-47 Thunderbolt|P-47 Thunderbolt]]s. |
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==Testing== |
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Delays in delivery of the unique pressure-cabin supercharger and engine modifications delayed the first flight of the XP-62 until 21 July 1943. The XP-62A was canceled on 21 September 1943 and only a limited amount of flight testing was conducted with the XP-62. Owing to its low priority, work progressed slowly and in the autumn of 1944 the XP-62 was scrapped. Because of insufficient flight testing, full performance characteristics were never obtained. |
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==Specifications (XP-62)== |
==Specifications (XP-62)== |
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{{Aircraft specs |
{{Aircraft specs |
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|ref=Curtiss Aircraft 1907–1947<ref name=Bowers>{{cite book |last1=Bowers |first1=Peter M. |title=Curtiss aircraft, 1907-1947 |date=1979 |publisher=Putnam |location=London |isbn=0370100298 |pages= |
|ref=Curtiss Aircraft 1907–1947<ref name=Bowers>{{cite book |last1=Bowers |first1=Peter M. |title=Curtiss aircraft, 1907-1947 |date=1979 |publisher=Putnam |location=London |isbn=0370100298 |pages=327–331}}</ref> |
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|prime units?=imp |
|prime units?=imp |
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General characteristics |
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|crew=1 |
|crew=1 |
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|capacity= |
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|span ft=53|span in=8 |
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|length note= |
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|span ft=53 |
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|span in=8 |
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|span note= |
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|height in=3 |
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|height note= |
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|wing area sqft=420 |
|wing area sqft=420 |
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⚫ | |airfoil='''root:''' [[NACA airfoil|NACA 66-118]]; '''tip:''' [[NACA airfoil|NACA 66-113]]<ref name="Selig">{{cite web |last1=Lednicer |first1=David |title=The Incomplete Guide to Airfoil Usage |url=https://m-selig.ae.illinois.edu/ads/aircraft.html |website=m-selig.ae.illinois.edu |access-date=16 April 2019}}</ref> |
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|wing area note= |
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|aspect ratio=<!-- sailplanes --> |
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⚫ | |airfoil='''root:''' [[NACA airfoil|NACA 66-118]]; '''tip:''' [[NACA airfoil|NACA 66-113]]<ref name="Selig">{{cite web |last1=Lednicer |first1=David |title=The Incomplete Guide to Airfoil Usage |url=https://m-selig.ae.illinois.edu/ads/aircraft.html |website=m-selig.ae.illinois.edu | |
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|empty weight note= |
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|gross weight lb=16650 |
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|gross weight note= |
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|max takeoff weight lb= |
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|max takeoff weight note= |
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|fuel capacity= |
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|more general= |
|more general= |
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Powerplant |
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|eng1 number=1 |
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|eng1 name=[[Wright R-3350-17 Duplex Cyclone]] |
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|eng1 hp=2300 |
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|prop blade number=6 |
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|prop dia ft=<!-- propeller aircraft --> |
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|prop dia in=<!-- propeller aircraft --> |
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Performance |
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|max speed mph=448 |
|max speed mph=448 |
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|max speed note=at {{cvt|27000|ft}} |
|max speed note=at {{cvt|27000|ft}} |
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|cruise speed mph= |
|cruise speed mph= |
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|cruise speed note= |
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|stall speed mph= |
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|stall speed note= |
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|never exceed speed mph= |
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|never exceed speed note= |
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|range miles=1300 |
|range miles=1300 |
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|range note= |
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|combat range miles= |
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|combat range note= |
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|ferry range miles= |
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|endurance=<!-- if range unknown --> |
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|ceiling ft=37500 |
|ceiling ft=37500 |
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|ceiling note= |
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|g limits=<!-- aerobatic --> |
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|roll rate=<!-- aerobatic --> |
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|glide ratio=<!-- sailplanes --> |
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|climb rate ftmin= |
|climb rate ftmin= |
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|climb rate note= |
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|wing loading lb/sqft=35 |
|wing loading lb/sqft=35 |
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|wing loading note= |
|wing loading note= |
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|fuel consumption lb/mi= |
|fuel consumption lb/mi= |
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|power/mass={{cvt|0.16|hp/lb}} |
|power/mass={{cvt|0.16|hp/lb}} |
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|more performance= |
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|avionics= |
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Latest revision as of 09:32, 13 March 2024
XP-62 | |
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A Curtiss-XP-62 on the tarmac | |
Role | Fighter interceptor |
Manufacturer | Curtiss-Wright |
First flight | 21 July 1943 |
Status | Cancelled 21 September 1943 |
Primary user | United States Army Air Forces |
Produced | 1943 |
Number built | 1 |
The Curtiss XP-62 was a prototype single-engine interceptor aircraft, that was built for the United States Army Air Forces, by the Curtiss-Wright Corporation. It first flew in 1943.
The design sought to have an improved high-altitude performance and higher speeds, at all altitudes, which was to be assisted by the 18-cylinder Wright R-3350 Duplex-Cyclone engine. It was to be armed with four 20 mm (0.79 in) autocannons, a heavier armament than contemporary USAAF fighter aircraft, and was fitted with a pressurized cockpit.
Design and development[edit]
The terms of the contract proposal of 29 April 1941 called for the first flight within fifteen months of the award and meet the following objectives.
- Maximum level flight speed at 27,000 ft (8,200 m) had to exceed 468 mph (753 km/h).
- It was to feature an air-conditioned pressurized cockpit.
- Armament to be either eight 20 mm (0.79 in) cannons or twelve 0.50 in (12.7 mm) machine guns, mounted in the wings.
Two prototypes were ordered; the first designated XP-62 and the second designated XP-62A.
On 2 August 1941, the specifications were amended for the XP-62, reducing the maximum speed to 448 mph (721 km/h) with eight 20 mm (0.79 in) cannons, and increasing the loaded weight by 1,537 lb (697 kg).
During a project review of 1 January 1942, the specification was again revised, with the loaded weight reduced by eliminating four cannons and removing the propeller de-icing equipment.
On 25 May 1942 a contract for 100 P-62 fighters was awarded. However, on 27 July 1942, before production could begin, the contract for the P-62 was terminated (although not, apparently, the XP-62A) because of the effect on deliveries of Curtiss-built Republic P-47 Thunderbolts.
While work on the XP-62A continued, it progressed slowly, owing to its low priority. Delays in delivery of the pressure-cabin supercharger and engine modifications delayed the first flight until 21 July 1943. Only a limited amount of flight testing was carried out before the XP-62A was canceled on 21 September 1943 and full performance characteristics were not obtained. The prototype was scrapped in early 1944.
Specifications (XP-62)[edit]
Data from Curtiss Aircraft 1907–1947[1]
General characteristics
- Crew: 1
- Length: 39 ft 6 in (12.04 m)
- Wingspan: 53 ft 8 in (16.36 m)
- Height: 16 ft 3 in (4.95 m)
- Wing area: 420 sq ft (39 m2)
- Airfoil: root: NACA 66-118; tip: NACA 66-113[2]
- Empty weight: 11,775 lb (5,341 kg)
- Gross weight: 16,650 lb (7,552 kg)
- Powerplant: 1 × Wright R-3350-17 Duplex Cyclone 18-cylinder air-cooled radial piston engine, 2,300 hp (1,700 kW)
- Propellers: 6-bladed contra-rotating constant-speed propeller
Performance
- Maximum speed: 448 mph (721 km/h, 389 kn) at 27,000 ft (8,200 m)
- Range: 1,300 mi (2,100 km, 1,100 nmi)
- Service ceiling: 37,500 ft (11,400 m)
- Time to altitude: 15,000 ft (4,600 m) in 6.9 minutes
- Wing loading: 35 lb/sq ft (170 kg/m2)
- Power/mass: 0.16 hp/lb (0.26 kW/kg)
Armament
- Guns: 8 x 20 mm (0.787 in) cannon
See also[edit]
Related lists
References[edit]
- ^ Bowers, Peter M. (1979). Curtiss aircraft, 1907-1947. London: Putnam. pp. 327–331. ISBN 0370100298.
- ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
- Green, William. War Planes of the Second World War – Fighters, Volume 4. London: Macdonald. 1961.
External links[edit]
- Curtis XP-62 – National Museum of the USAF