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Sukhoi Su-9 / Su-11 / Su-13 (1946)


Fighter / Fighter-Bomber / Night-Fighter Prototype Aircraft


Soviet Union | 1946



"Captured German wartime technology allowed the Soviets to advance their jet fighter programs such as the Sukhoi Su-9 series."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Sukhoi Su-9 (1946) Fighter / Fighter-Bomber / Night-Fighter Prototype Aircraft.
2 x RD-10 (Junkers Jumo 004) turbojet engines developing 2,000lb thrust each.
Propulsion
550 mph
885 kph | 478 kts
Max Speed
41,995 ft
12,800 m | 8 miles
Service Ceiling
746 miles
1,200 km | 648 nm
Operational Range
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Sukhoi Su-9 (1946) Fighter / Fighter-Bomber / Night-Fighter Prototype Aircraft.
1
(MANNED)
Crew
34.6 ft
10.55 m
O/A Length
36.7 ft
(11.20 m)
O/A Width
11.2 ft
(3.40 m)
O/A Height
8,951 lb
(4,060 kg)
Empty Weight
13,228 lb
(6,000 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the Sukhoi Su-9 / Su-11 / Su-13 (1946) Fighter / Fighter-Bomber / Night-Fighter Prototype Aircraft .
STANDARD:
1 x 37mm Nudelman N-37 cannon OR 1 x 45mm Nudelman N-45 cannon.
2 x 23mm Nudelman-Suranov NS-23 automatic cannons.

OPTIONAL:
2 x 500lb conventional drop bombs.
Variants
Notable series variants as part of the Sukhoi Su-9 / Su-11 / Su-13 (1946) family line.
Su-9 - Original prototype; single example produced.
Su-9UT - Proposed two-seat conversion trainer of Su-9 production fighter.
Su-11 - Su-9 fighter with Lyulka TR-1 series engines; single prototype example.
Su-13 - Su-9 fighter with Klimov RD-500 series engines; never produced.
Authored By: Staff Writer | Last Edited: 05/20/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

While the concept of the turbojet engine lingered for some time, it was not put into practical use until the latter part of the 1930s with engineers in Britain and Germany both leading the way. The United States and the Soviet Union - all to become major participants in aircraft development during World War 2 - were relatively slower players to emerge with viable turbojet-powered solutions. For the latter, one of the earlier jet-powered fighter attempts became the Sukhoi Su-9 developed from captured German technology by Sukhoi OKB. Work on the type began in 1944 as the Red Army progressed through its bloody offensives, taking German-held ground - and all booty therein - in the process.

The Soviet copy made no qualms about its German design origins for the lines of the famous Messerschmitt Me 262 "Schwalbe" - aviation history's first operational jet fighter - were clearly apparent in the Sukhoi submission. The aircraft was given a well-contoured and smooth fuselage encapsulating the required avionics, cockpit, armament and fuel stores. Wings were straight appendages with underslung engine nacelles, one engine to a wing. The tail consisted of a rounded vertical tail wing and high-set horizontal planes providing an overall traditional arrangement. The pilot sat just ahead of amidships under a three-piece canopy with light framing. The undercarriage consisted of a wholly retractable tricycle arrangement with two single-wheeled main legs and a twin-wheeled nose leg. When at rest, this gave the Su-9 a pronounced "nose-up" appearance. The Su-9 was also completed with an ejection seat, this based on the design of the German Heinkel He 162 "Volksjager" emergency jet fighter.

Armament was concentrated in the nose assembly with barrels protruding a short distance ahead. The arrangement was a mixture consisting of 1 x 37mm Nudelman N-37 cannon and 2 x 23mm Nudelman-Suranov NS-23 cannon. The 37mm fitting was afforded 40 rounds while the twin 23mm installations were fed by 200 projectiles per gun. Such a cannon-only arrangement would become a staple of Soviet jet-powered fighters of the near future. Beyond its dedicated fighter role it was envisioned that the Su-9 would also carry up to 1,100lbs of external stored for when in the fighter-bomber role - a role which saw the airframe outfitted with cockpit armoring for added protection. The original 37mm nose cannon could also be replaced by a larger-caliber 45mm Nudelman N-45 series weapon - though at the cost of total ammunition allowed onboard.

From the outset, it was expected that the Sukhoi design would be powered by a pair of in-house Lyulka TR-1 series turbojets. The TR-1 would become the first Soviet-designed turbojet engine in history and attributed to engineer Arkhip Lyulka himself. Despite its promising scope, the engine ultimately failed due to its poor thrust output (2,800lbs). During early development, the Su-9 was outfitted with outright Soviet copies of the German Junkers Jumo 004B series turbojet.

The war in Europe had ended in May of 1945 and the Pacific War wound down in August of that year. Work progressed on the Sukhoi fighter. The first prototype was not completed until October of 1946 and saw its first flight recorded the following month, proving the design sound for the whole. There continued output thrust issues with the engines which would never be officially resolved before the end of the program. The Su-9 prototype was then featured in an August 1947 flyby over Tushino Airfield. This was also joined by the Su-11 prototype, an Su-9 offshoot fitting Lyulka TR-1 turbojets.

By this time, competing designs from Mikoyan-Gurevich and Yakovlev began to outshine the Sukhoi development. Soviet authorities therefore began to focus on these newer, faster aircraft which essentially forced the Sukhoi fighter project to come to naught - only two prototypes ever being completed (Su-9 and Su-11). The Su-9UT designation would have covered a proposed two-seat trainer of the base Su-9 fighter featuring a second cockpit and limited armament and internal volume. The Su-13 was another proposed evolution of the series, intended to solve the thrust output issue even more so. A night-fighter variant would have been born of this initiative as well.

The Su-9 designation later resurfaced in the Sukhoi Su-9 "Fishpot" of 1959, a supersonic jet-powered interceptor/fighter development which saw 1,150 examples produced.

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Operators
Global customers who have evaluated and/or operated the Sukhoi Su-9 / Su-11 / Su-13 (1946). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 2 Units

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

[ Soviet Union ]
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Image of the Sukhoi Su-9 / Su-11 / Su-13 (1946)

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