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Sunday, August 2, 2020

General Electric F414

The General Electric F414 is an American afterburning turbojet within the 22,000-pound (98 kN) thrust class produced by GE Aviation. The F414 originated from GE's widely used F404 turbofan, enlarged and improved to be used within the Boeing F/A-18E/F Super Hornet. The engine was developed from the F412 non-afterburning turbofan planned for the A-12 Avenger II, before it had been canceled.
The General Electric F414-GE-400 may be a 22,000-pound class afterburning turbojet . The engine features an axial compressor with 3 fan stages and seven high-pressure compressor stages, and 1 high-pressure and 1 low-pressure turbine stage. At a weight of two ,445 pounds, the F414-GE-400 features a thrust-to-weight ratio of 9. The F414 is one among the U.S. Navy's newest and most advanced aircraft engines. It incorporates advanced technology with the proven design base of its F404 predecessor - for instance the F414 features a FADEC (Full Authority Digital Engine Control) system - to supply the Boeing F/A-18E/F Super Hornet and therefore the EA-18G Growler with a durable, reliable and easy-to-maintain engine.

The F/A-18E/F Super Hornet may be a carrier-based, twin-engine, high-performance, multi-mission, tactical fighter and fighter . With its selected external equipment the aircraft are often optimized to accomplish both fighter and attack missions. The F/A-18E/F provides a 40 percent increase in combat radius, a 50 percent increase in endurance, 25 percent greater weapons payload, 3 times more ordnance, and is five times more survivable than the F/A-18 A/C models. These major performance improvements are mainly thanks to the F414-GE-400 engine, which is more powerful than the F404 used on the F/A-18 A/C Hornet.

The engine entered production in 1998 after a successful engineering, research, and development program. So far, the F414-GE-400 has proven itself as a highly reliable power station . In June 2015, GE Aviation delivered its 1,500th F414 engine. The F414 engine fleet has surpassed quite 3 million flight hours.

The F414 delivers 35% more thrust than the first F404, which significantly improves the range, payload and survivability of Boeing F/A-18E/F Super Hornet aircraft and EA-18G Electronic Attack Fighters.

In 2006, Saab selected the F414 to feature range and other capabilities to their Gripen Next Generation (NG) fighter jet - now Gripen E. The F414 has been selected to power 60 fighters for Sweden and 36 for Brazil. the assembly Gripen E is powered by the F414-GE-39E. In October 2010, the F414-INS6 derivative of the F414 was selected to power the Mk2 version of India's HAL Tejas Light Combat Aircraft (LCA). India expects to get up to 99 installed engines. In May 2016, South Korea selected GE Aviation to provide F414 engines for its indigenous KF-X next-generation fighter.

General Electric is developing a F414 Enhanced Engine variant, which includes an increased flow, all-blisk fan, new six-stage high-pressure compressor and an improved high-pressure turbine. With the support of the U.S. Navy, multiple rig and ground engine tests are completed. Benefits include 18% more thrust (26,000 lbs vs. 22,000 for current F414 variants), lower fuel burn, increased bleed air for avionics cooling, and double horsepower extraction for electrical growth. GE Aviation is pitching the F414 Enhanced Engine as an upgrade for the U.S. Navy's F/A-18E/F Super Hornet and EA-18G Growler fleet.

Sources Used: U.S. Department of Defense (DoD) and General Electric Co.
Why are jet engines so expensive?
You are right - jet engines are expensive. They are highly optimised machines containing thousands of parts. The parts used are made of expensive, exotic materials, which are often very expensive. ... Then the engine has to be assembled by skilled mechanics over many hours.

Manufacturer: General Electric Co.
Thrust: 22,000 pounds
Overall Pressure Ratio at Maximum Power: 30
Thrust-to-Weight Ratio: 9
Compressor: Two-spool, axial flow, three-stage fan
LP-HP Compressor Stages: 0-7
HP-LP Turbine Stages: 1-1
Combustor Type: Annular
Engine Control: FADEC
Length: 154 in (3.91 m)
Diameter: 35 in (88.9 cm)
Dry Weight: 2,445 lbs (1,109 kg)
Platforms: F/A-18E/F Super HornetEA-18G Growler
Price/Unit Cost: $3.71 million
First Run: 1993
First Flight: November 29, 1995

How much does a GE jet engine cost?
General Electric GE90
Number built2,800 by July 2020
Program cost$2 billion, high thrust: $500 million
Unit costUS$27.5 million list price (2011)
Developed intoGeneral Electric GEnx Engine Alliance GP7000 General Electric GE9X
Why did Kaveri engine fail?Let's start with the problems the Kaveri engine faces — decayed performance at high altitude, combustion flicker, insufficient thrust and noise at high throttle testing. Leaving out the noise, the rest of the issues are with the engine core, where the main phenomenon is high pressure combustion.

1 comment:

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