A-4 / A-7 Question

On Wed, 08 Oct 2003 19:46:27 GMT, Guy Alcala
wrote:


On that note, anyone got any idea of how much did the A7s long long legs
reduce by when fitted with the bigger blower ?

The A-7F, Corasair III, Strikefighter, etc. all included an airframe stretch
and extra fuel in addition to an F100 or F110.

Interesting, I didnt know about the F110 being considered for it.

The airframe stretch was to
allow the a/c to be supersonic (Mach 1.4 level IIRR), and the extra fuel was
to keep the range/endurance in the same ballpark.

Any idea of the peformance improvement on the 'lo' part of an attack
mission with the F110/F100 ?


For instance, here's the proposed Corsair III changes, which was designed to
use rebuilt A-7A/A-7B airframes from the Boneyard, although A-7D/Es would be
easier to convert: An F110-GE-100, 16,700 lb. mil and 27,600 lb. A/B; A
constant-section plug of 29.5" to extend the fuselage around the wing root
area; another plug of 7.5" to the aft fuselage to tailor the airframe to the
F110 and its remote accessory gearbox. Rear fuselage canted upwards 5 degrees
to provide ground clearance for the longer tailpipe. A more sharply-pointed
nose cone (see F-8); the original was made blunter to reduce length on
carriers. Internal configuration changed to increase fuel capacity.

Did the USN have any interest in looking at a turbocharged E model ?





greg



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Greg Hennessy wrote:

On Wed, 08 Oct 2003 19:46:27 GMT, Guy Alcala
wrote:

snip

The airframe stretch was to
allow the a/c to be supersonic (Mach 1.4 level IIRR), and the extra fuel was
to keep the range/endurance in the same ballpark.

Any idea of the peformance improvement on the 'lo' part of an attack
mission with the F110/F100 ?

No. It might describe this in one of the AI articles, but I'd have to go digging
through 10 years or so of mags to find the right one, and I'm just feeling too
lazy.

For instance, here's the proposed Corsair III changes, which was designed to
use rebuilt A-7A/A-7B airframes from the Boneyard, although A-7D/Es would be
easier to convert: An F110-GE-100, 16,700 lb. mil and 27,600 lb. A/B; A
constant-section plug of 29.5" to extend the fuselage around the wing root
area; another plug of 7.5" to the aft fuselage to tailor the airframe to the
F110 and its remote accessory gearbox. Rear fuselage canted upwards 5 degrees
to provide ground clearance for the longer tailpipe. A more sharply-pointed
nose cone (see F-8); the original was made blunter to reduce length on
carriers. Internal configuration changed to increase fuel capacity.

Did the USN have any interest in looking at a turbocharged E model ?

No, they had the F-18. The stretches were mainly aimed at the ANG and (they hoped)
possible foreign customers.

Guy

On Thu, 09 Oct 2003 18:02:17 GMT, Guy Alcala
wrote:



No. It might describe this in one of the AI articles, but I'd have to go digging
through 10 years or so of mags to find the right one, and I'm just feeling too
lazy.

No worries :-), I was just curious.


Did the USN have any interest in looking at a turbocharged E model ?

No, they had the F-18.

True, but something with 2 maybe 3 times the unrefuelled range carrying the
same a2g load.

The stretches were mainly aimed at the ANG and (they hoped)
possible foreign customers.


Neither the greeks or the portuguese took them up on that.


greg

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