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Curtiss XP-53 (Model 88)


Lightweight Monoplane Fighter Proposal


United States | 1940



"The Curtiss Model 88 - or XP-53 - was another company attempt to improve upon its P-40 Warhawk family of fighters - it did no succeed."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Curtiss XP-53 Lightweight Monoplane Fighter Proposal.
1 x Continental XIV-1430-3 liquid-cooled inline-piston engine developing 1,600 horsepower and driving a three-bladed propeller unit at the nose.
Propulsion
429 mph
690 kph | 373 kts
Max Speed
30,512 ft
9,300 m | 6 miles
Service Ceiling
2,345 ft/min
715 m/min
Rate-of-Climb
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Curtiss XP-53 Lightweight Monoplane Fighter Proposal.
1
(MANNED)
Crew
34.4 ft
10.50 m
O/A Length
41.3 ft
(12.60 m)
O/A Width
12.3 ft
(3.75 m)
O/A Height
7,716 lb
(3,500 kg)
Empty Weight
9,998 lb
(4,535 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the Curtiss XP-53 (Model 88) Lightweight Monoplane Fighter Proposal .
PROPOSED:
6 x 0.50 caliber Browning air-cooled heavy machine guns (four guns to a wing).
Variants
Notable series variants as part of the Curtiss XP-53 (Model 88) family line.
XP-53 - Base Project Designation; single airframe completed but reused as engine testbed in the XP-60 program.
Model 88 - Internal company designation


Authored By: Staff Writer | Last Edited: 07/13/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

Curtiss Aeroplane attempted to improve upon its classic P-40 "Warhawk" fighter along many routes. This is what eventually pushed the XP-46 project for the United States Army. The lightweight design was ultimately hindered by Army meddling and Curtiss' ongoing commitment to the P-40 factory lines. As a result, the aircraft program was limited to just two prototypes for its time in history.

Nevertheless, engineers continued to find all that was good in their P-40 and extend these qualities into yet-another potential successor. This became the XP-53, known internally as "Model 88", and this offering garnered the interest of the Army as early as April of 1940. Later that year, specifications for the new monoplane fighter were fleshed out to include a (rather optimistic) maximum speed of 465 miles per hour (when fighting under 20,000 feet altitude), a ceiling reaching 30,500 feet and an armament of 6 x 0.50 caliber heavy machine guns (up from the originally-intended four-gun armament). Estimated empty weight was 7,650lb against an MTOW of 10,000lb. Self-sealing fuel tanks and armoring were to be standard. For power, the experimental Continental XIV-1430-3 series liquid-cooled inline piston engine of 1,600 horsepower was selected and this was to turn a three-bladed propeller at the nose.

October of 1940 yielded Curtiss a U.S. Army contract for a single flyable prototype to prove the design sound. The Army pushed for a second prototype to fit the Rolls-Royce Merlin 28 (V-1650-1) engine as insurance against the XIV-1430-3 should that engine fail in its development goals.

The end result was an aircraft very reminiscent of the classic P-40 though with somewhat longer, slender lines. The monoplane wing structure would run under the fuselage (ahead of midships) with a laminar-flow design and have rounded tips. The engine would be contained in the nose in the usual way and the tail was to be a traditional singe-finned arrangement. A tail-dragger undercarriage, wholly-retractable into the design, would allow for the necessary ground-running capability. The cockpit, seating one, was to be covered over in a heavily-framed canopy, the rear view dominated by the raised fuselage spine. Three machine guns were to be installed at each wing leading edge just outboard of the main landing gear leg well. It was proposed, at least for a short time, that armament be increased to four guns to a wing but this idea was stopped as it would have reduced the effectiveness of the wing.

The aircraft accordingly grew in weight, moving further away from its lightweight status to the point that the already-optimistic estimated speed was reduced by some 35 miles per hour even before the prototype was declared ready. Coupled with issues in bringing about the Continental engine online, the death knell for the XP-53 was struck. In November of 1941, the XP-53 was cancelled and its existing frame to be used in testing Merlin engine installations for the XP-60 program (detailed elsewhere on this site).

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Operators
Global customers who have evaluated and/or operated the Curtiss XP-53 (Model 88). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 1 Units

Contractor(s): Curtiss Aeroplane - USA
National flag of the United States

[ United States (cancelled) ]
1 / 1
Image of the Curtiss XP-53 (Model 88)
Image copyright www.MilitaryFactory.com; No Reproduction Permitted; XP-53 presented in fictional colors.

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