English Electric Lightning

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:01

The new engines and fin made the F.3 the highest performance Lightning yet, but with an even higher fuel consumption and resulting shorter range.

The next variant, the F.6, was already in development, but there was a need for an interim solution to partially address the F.3’s shortcomings.

The F.3A was that interim solution.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:02

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:04

F-6

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:07

The F.3A introduced two improvements: a new, non-jettisonable, 610 gal (2,770 l) ventral fuel tank,[7] and a new, kinked, conically-cambered wing leading edge—of course, incorporating a slightly larger leading edge fuel tank, raising the total usable internal fuel to 716 gal (3,250 l).

The conically-cambered wing noticeably improved maneuverability, especially at higher altitudes, and the ventral tank nearly doubled available fuel.

The increased fuel was very welcome, but the lack of cannon armament was felt to be a deficiency.

It was thought that cannon were desirable to fire warning shots in the intercept mission.[
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:10

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:10

The F.6 was the ultimate Lightning version to see British service.

Originally, it was nearly identical to the F.3A with the exception that it had provisions to carry 260 gal (1,180 l) ferry tanks on pylons over the wings.

These tanks were jettisonable in an emergency, and gave the F.6 a substantially improved deployment capability.

There remained one glaring shortcoming: the lack of cannon.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:13

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:13

This was finally rectified in the form of a modified ventral tank with two ADEN cannon in the front.

The addition of the cannon and their ammunition decreased the tank's fuel capacity from 610 gal to 535 gal (2,430 l), but the cannon made the F.6 a “real fighter” again.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:21

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:21

The final British Lightning was the F.2A.

This was an F.2 upgraded with the cambered wing, the squared fin, and the 610 gal ventral.

The F.2A retained the A.I.23 and Firestreak missile, the nose cannon, and the earlier Avon 211R engines.

Although the F.2A lacked the thrust of the later Lightnings, it had the longest tactical range of all Lightning variants, and was used for low-altitude interception over Germany.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:25

Le 30 mm Aden, utilisé aussi sur les Hawker Hunter, Saab Draken mais encore dans sa dernière mouture sur le Hawk

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:27

The F.53 was the “Export Lightning.” It was an attempt to add multi-role capability to the optimized point defense interceptor design.

The F.53 was based on the F.6 airframe and avionics, but incorporated an additional pair of hardpoints on the outer wing.
These hardpoints could be fitted with pylons for air-to-ground ordnance, though in practice, they were rarely used.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:28

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:28

The Export Lightning had all of the advantages of the British Lightnings: exceptional climb rate, well-mannered maneuvering, and a hard-hitting punch. Unfortunately, the Export Lightning also retained the difficulty of maintenance, and serviceability rates suffered.

Still, the F.53 was generally well regarded by its pilots, and its adaptation to multiple roles is a testimony to the exceptional talent of its designers.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:29

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 12:30

In 1963, BAC Warton worked on the preliminary design of a two-seat Lightning development with a variable-geometry wing, based on the Lightning T.5 with a revised undercarriage.

Initially proposed as a carrier-based aircraft, the VG Lightning concept was revised into a land-based interceptor intended for the RAF the following year.

However no VG Lightning was ever built.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 13:57

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 13:57

In September 2008, the Institution of Mechanical Engineers conferred on the Lightning its "Engineering Heritage Award".

Former pilots and engineers, who were involved with the plane during the 1950s and 1960s, gathered at the BAE Systems site at Warton Aerodrome to mark the engineering feat.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 13:59

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 13:59

Operational history

The first operational aircraft, a pre-production P 1B (XG336), arrived at RAF Coltishall in Norfolk in December 1959. From 1960 the production F.1 served initially with 74 Squadron. An improved variant the F.2 first flew on 11 July 1961 and entered service with 19 Squadron at the end of 1962.

The F.3 was first flown on 16 June 1962 and the longer-range F.6 on 16 June 1965.

The versions sold to Saudi Arabia were essentially similar to the T 5 and F.6 models in UK service and this final production batch reverted to the classic natural metal external finish which lasted well in the drier Arabian climate.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 14:01

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 14:01

During the 1960s, as strategic awareness increased and a multitude of alternative fighter designs were developed by Warsaw Pact and NATO members, the Lightning's range and firepower shortcomings became increasingly apparent.

The withdrawal of McDonnell Douglas F-4 Phantoms from Royal Navy service enabled these slower but much longer-ranged aircraft to be added to the RAF's interceptor force alongside those withdrawn from Germany which were being replaced by SEPECAT Jaguars in the ground attack role.

Later the Tornado F3s also arrived to defend UK airspace.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 14:02

Nine Lightning F.1 of No.74 Squadron RAF display at the 1961 SBAC show, Farnborough

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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 14:02

While slower and less agile than the Lightning, the Tornado carries a much larger armament load and much more advanced avionics.

Lightnings were slowly phased out of service between 1974 and 1988, although much testing and modification was needed to keep them in air-worthy condition due to the high number of flight hours accumulated.
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Re: English Electric Lightning

Message par O'Dart le Dim 05 Sep 2010, 14:03

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Re: English Electric Lightning

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