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Old 09-22-2006, 12:36 PM   #1
fbrdphreak
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

http://www.spacewar.com/reports/Mighty_...htning_2_Engine_Roars_To_Life_999.html

Quote:
The Lockheed Martin F-35 Lightning II completed its first series of engine runs on Monday afternoon, culminating in a full-afterburner test that unleashed 40,000 pounds of thrust - the most ever from a jet-fighter engine. The testing began on Friday, Sept. 15, when Chief Pilot Jon Beesley moved a cockpit switch to the "run" position and brought the Pratt and Whitney [NYSE: UTX] F135 engine to life.

While F135 engines already have logged thousands of successful hours on test stands, Friday's engine start marked the first time the engine had run in the F-35 aircraft. The milestone kicked off a final series of ground tests that will lead to the jet's first flight later this year.

"This is an exciting time for Pratt and Whitney and the entire F-35 team," said Bill Gostic, vice president of F135 engine programs for Pratt and Whitney. "Running this engine in the aircraft puts us one step closer to watching the F-35 fly. We are proud that the Lightning II will be powered by Pratt and Whitney."

"Starting and running the F135 engine means we're now in the final stretch leading to first flight, and also that we have greater insight into the F-35's design as an integrated system," said Dan Crowley, Lockheed Martin executive vice president and F-35 program manager. "This team continues to prove that the F-35 is a mature system that is poised to enter flight test, and soon thereafter, production."

A unique Integrated Power Package (IPP), produced by Honeywell Aerospace Electronic Systems, is used to start the engine. The installed IPP was started for the first time on Sept. 7. It combines a starter, electrical power supply and environmental control system in a single unit - systems that in previous aircraft have been separate, stand-alone units.

Doug Pearson, vice president of the F-35 Integrated Test Force, characterized the IPP and engine testing as another example of the F-35's ability to integrate teams and complex systems on a timely basis. "Previous legacy programs have needed months to progress from initial onboard power to engine start and full afterburner mode. The rapid progression on the F-35 is a good indication that the program's investments in laboratories and early ground testing are paying off," Pearson said.

The engine runs mark the first time that the F-35 has been completely functional on its own power systems. As the tests proceeded, Beesley incrementally advanced the throttle until the engine achieved military power (full power without afterburner) on Sunday night, and full afterburner on Monday.

Before today's engine start, nine F135 development engines had run for more than 5,500 hours on test stands. The F135 is an evolution of the Pratt and Whitney F119 engine, which powers the F-22 Raptor, Lockheed Martin's other 5TH Generation Fighter. Pratt and Whitney has delivered three flight test engines to support the F-35's first flights. As the most powerful single-engine fighter in history, the F-35 Lightning II produces more thrust than most twin-engine fighters.

The stealthy F-35 is a supersonic, multi-role, 5TH Generation fighter designed to replace a wide range of existing aircraft, including AV-8B Harriers, A-10s, F-16s, F/A-18 Hornets and United Kingdom Harrier GR.7s and Sea Harriers.

Lockheed Martin is developing the F-35 with its principal industrial partners, Northrop Grumman and BAE Systems. Two separate, interchangeable F-35 engines are under development: the Pratt and Whitney F135 and the GE Rolls-Royce Fighter Engine Team F136.

Fifteen F-35s will undergo flight testing, seven will be used for static/ground testing and another will validate the aircraft's radar signature.
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Old 09-22-2006, 12:44 PM   #2
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

I'm curious to see how things will turn out. I'm suspecting the F-22 will end up in very limited numbers and then this thing will be the main fighter of the first 50 years of the 2000's.
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Old 09-22-2006, 01:18 PM   #3
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

As a multipurpose, new generation (seventh I think) aircraft, the F-35 is necessary, but the F22, is significantly better suited as an air superiority weapon. The F135's 40,000lbs of thrust is impressive, but considering the F-22 has two F119s at at least 35,000 each, it's really not that overwhelming. The F22 has a faster supercruise at mach 1.7 than the maximum speed of the F35 at mach 1.6. Not to mention the range of the F22 is 2000 miles whereas the F35 is under a thousand. It's also inferred that the F22 has a much faster acceleration due to its engines, but it also handles much better too. Frankly, I'd be scared shitless to be in an F35 and have a raptor after me.
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Old 09-22-2006, 01:19 PM   #4
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

The F22 also costs 3.5x as F35.
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Old 09-22-2006, 01:39 PM   #5
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

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The stealthy F-35 is a supersonic, multi-role, 5TH Generation fighter designed to replace a wide range of existing aircraft, including AV-8B Harriers, A-10s, F-16s, F/A-18 Hornets and United Kingdom Harrier GR.7s and Sea Harriers.
There is no way a multipurpose aircraft can fulfill the antitank / ground support role even half as well as the purpose built A-10.But the aircraft does sound cool other than that.
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Old 09-22-2006, 01:44 PM   #6
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

Quote:
Originally posted by: drinkmorejava
As a multipurpose, new generation (seventh I think) aircraft, the F-35 is necessary, but the F22, is significantly better suited as an air superiority weapon. .
Considering the F22 was more designed to be an Air Superiority fighter, that's hardly a surprise.
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Old 09-22-2006, 02:02 PM   #7
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

Quote:
Originally posted by: bernse
Quote:
Originally posted by: drinkmorejava
As a multipurpose, new generation (seventh I think) aircraft, the F-35 is necessary, but the F22, is significantly better suited as an air superiority weapon. .
Considering the F22 was more designed to be an Air Superiority fighter, that's hardly a surprise.
Exactly.

Plus having the F22 as a completely US developed and owned design has its own benefits.
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Old 09-22-2006, 02:05 PM   #8
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

Bah! I like the F40 better.
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Old 09-22-2006, 02:14 PM   #9
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

I think the F35 is going to replace planes like the F16 while the F22 is going to replace planes like the F15 and F18. While thier roles overlap a bit, there is places where eachother excels.

As far as replacing the A-10, there is no replacing that plane. There was nothing like it before, and there will be nothing like it again. The A-10 will go down in history as the world's only true flying tank.
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Old 09-22-2006, 02:16 PM   #10
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

The F-35 is an amazing plane. The X-32 never stood a chance.

The F-35 will replace the F-16, F/A-18 (which itself replaced the F-14), and Harrier, beginning in 2011.

The F-22 is the F-15 replacement.
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Old 09-22-2006, 02:36 PM   #11
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Default F-35 Lightning II Engine Tested - 40,000 lbs thrust

Quote:
Originally posted by: Demon-Xanth
As far as replacing the A-10, there is no replacing that plane. There was nothing like it before, and there will be nothing like it again. The A-10 will go down in history as the world's only true flying tank.
Well said

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