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Aviation / Aerospace

Sukhoi P-1 (Perekhvatchuk-1)


Interceptor Prototype Aircraft [ 1957 ]



The Sukhoi P-1 was intended as an interceptor solution for the Soviet Union during the early-Cold War years - it failed in this regard as a single prototype was all that was completed.



Authored By: Staff Writer | Last Edited: 10/15/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

VIEW SPECIFICATIONS [+]
Because of the rise in capabilities of American and British bombers in the West during the Cold War years (1947-1991), the Soviet Union pushed a myriad of developments centered on air defense. This included both ground-based missile systems and dedicated, high-speed interceptors to which - one of the latter - became the Sukhoi "P-1". This example ended its days as a single prototype due mainly to delays in the intended radar and engine.

By 1954, the high-flying, jet-powered American bomber threat was a real one so Soviet engineers were charged with evolving design studies centered on new interception solutions. Alongside this was development of a new interception radar, the Uragan-1 ("Hurricane-1") X-band radar, which promised to aid in the role. However, this system's sophisticated nature came at a price - it was technologically complex and physically large - and would require an equally-technologically-complex and large aircraft to carry it. Sukhoi OKB was commissioned with development of the airframe and, along with what would become the P-1, engaged in development of a similar-minded interception form at the same time - the "T-3".

For power it was decided to focus on the in-development Lyulka AL-9 turbojet (proposed 23,370lb of thrust with afterburning) of which one would be installed in the new aircraft. As the radar fit would be housed in the nose, a nose-mounted intake was out of the question - leading Sukhoi engineers to devise a split, side-intake (lateral) arrangement in which two intakes aspirated the single engine with.

The fuselage took on a typical tubular form. Due to the added mission responsibilities concerning the new radar, a second crewman was added - the two seated inline in separate cockpits under heavy framing with restricted vision. The cockpit positions were set aft of the nosecone assembly and ahead of the intakes. The wing planform became a tailed-delta-wing configuration (following the arrangement seen in the parallel T-3 design), the mainplanes essentially triangular shapes given 57-degree sweep along their leading edges and straddling the fuselage. The tail unit was traditional, sporting a single vertical fin with low-set horizontal planes. A tricycle undercarriage completed the modern features of what was becoming a sleek-looking aircraft.

As the AL-9 engine was still in the works, the prototype was outfitted with the lower-powered Lyulka AL-7F turbojet for the interim. The Sukhoi prototype took on the designation of "P-1" (Perekhvatchuk-1 = "Interceptor-1").

It was proposed that the finalized version of the interceptor would carry 50 x 57mm spin-stabilized, unguided air-to-air rockets to contend with enemy bombers. This was in addition to a fixed, forward-firing 37mm Nudelman N-37 autocannon and eventual support for underwing Air-to-Air Missiles (AAMs) (the "K-7" radar-guided series).

First-flight of this test machine was recorded on July 12th, 1957 though the Soviet Air Force was not wholly sold on the design and mounting delays with the intended radar and engine ultimately restricted the flight test phase considerably. Only one prototype was completed and little could be done to salvage the now-dying program - including championing a twin-engined version under the "P-2"designation (this version reached the mock-up stage). With its end official, the P-1 airframe served in other low-key tests before being abandoned and scrapped.

Sukhoi engineers estimated their P-1 interceptor to showcase a maximum speed of Mach 1.93, a range of 1,240 miles, and a service ceiling of 64,000 feet. Dimensions included an overall length of 70 feet and wingspan of 32 feet.©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.

Specifications



Service Year
1957

Origin
Soviet Union national flag graphic
Soviet Union

Status
CANCELLED
Development Ended.
Crew
2

Production
1
UNITS


National flag of the Soviet Union Soviet Union (cancelled)
(OPERATORS list includes past, present, and future operators when applicable)
Interception
Ability to intercept inbound aerial threats by way of high-performance, typically speed and rate-of-climb.
X-Plane (Developmental, Prototype, Technology Demonstrator)
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.


Length
69.9 ft
(21.30 m)
Width/Span
32.2 ft
(9.80 m)
Height
14.8 ft
(4.50 m)
Empty Wgt
22,046 lb
(10,000 kg)
MTOW
37,479 lb
(17,000 kg)
Wgt Diff
+15,432 lb
(+7,000 kg)
(Showcased structural values pertain to the base Sukhoi P-1 (Perekhvatchuk-1) production variant)
Installed: 1 x Lyulka AL-7F turbojet engine with afterburner developing up to 22,000lb of thrust.
Max Speed
1,274 mph
(2,050 kph | 1,107 kts)
Ceiling
63,976 ft
(19,500 m | 12 mi)
Range
1,243 mi
(2,000 km | 3,704 nm)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the base Sukhoi P-1 (Perekhvatchuk-1) production variant. Performance specifications showcased above are subject to environmental factors as well as aircraft configuration. Estimates are made when Real Data not available. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
PROPOSED:
1 x 37mm Nudelman N-37 internal automatic cannon.
50 x 57mm Air-to-Air (AA) unguided, fin-stabilized aerial rockets.

OPTIONAL:
2 x K-7 radar-guided Air-to-Air Missiles (AAMs).


Supported Types


Graphical image of an aircraft automatic cannon
Graphical image of an air-to-air missile weapon
Graphical image of a short-range air-to-air missile
Graphical image of aircraft aerial rockets
Graphical image of an aircraft anti-radar/anti-radiation missile


(Not all ordnance types may be represented in the showcase above)
Hardpoint Mountings: 2


P-1 - Base Series Designation; single prototype completed.


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Images Gallery



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Image of the Sukhoi P-1 (Perekhvatchuk-1)
Image from the Public Domain.

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