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Sukhoi P-1 (Perekhvatchuk-1)


Interceptor Prototype Aircraft


Soviet Union | 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; No A.I. was used in the generation of this content.
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.

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Sukhoi P-1 (Perekhvatchuk-1) Interceptor Prototype Aircraft.
1 x Lyulka AL-7F turbojet engine with afterburner developing up to 22,000lb of thrust.
Propulsion
1,274 mph
2,050 kph | 1,107 kts
Max Speed
63,976 ft
19,500 m | 12 miles
Service Ceiling
1,243 miles
2,000 km | 1,080 nm
Operational Range
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Sukhoi P-1 (Perekhvatchuk-1) Interceptor Prototype Aircraft.
2
(MANNED)
Crew
69.9 ft
21.30 m
O/A Length
32.2 ft
(9.80 m)
O/A Width
14.8 ft
(4.50 m)
O/A Height
22,046 lb
(10,000 kg)
Empty Weight
37,479 lb
(17,000 kg)
MTOW
Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.
RANGE
ALT
SPEED
Armament
Available supported armament and special-mission equipment featured in the design of the Sukhoi P-1 (Perekhvatchuk-1) Interceptor Prototype Aircraft .
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).
Variants
Notable series variants as part of the Sukhoi P-1 (Perekhvatchuk-1) family line.
P-1 - Base Series Designation; single prototype completed.
Operators
Global customers who have evaluated and/or operated the Sukhoi P-1 (Perekhvatchuk-1). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 1 Units

Contractor(s): Sukhoi - OKB
National flag of the Soviet Union

[ Soviet Union (cancelled) ]
Relative Max Speed
Hi: 1300mph
Lo: 650mph
Aircraft Max Listed Speed (1,274mph).

Graph Average of 975 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
1
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
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
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
1 / 1
Image of the Sukhoi P-1 (Perekhvatchuk-1)
Image from the Public Domain.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
INTERCEPTION
X-PLANE
Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.
Going Further...
The Sukhoi P-1 (Perekhvatchuk-1) Interceptor Prototype Aircraft appears in the following collections:
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