UK 1960s fighter attacker VG, VSTOL or neither

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Readers of Project Cancelled, Tony Buttler's British Secret Projects and numerous books and articles since are all fascinated by what I shall call the fighter/attacker. This was a supersonic design to replace the RAF and RN fighter and tactical strike force in the 70s. Schemes inititially favoured complex swing wing and other fancy designs. By 1963 the front runner was the P1154 in both RAF and RN guises. As we know, the 1154 was abandoned in favour of F4s for the RN and then F4/1127RAF/Jaguar for the RAF.
Assuming a blank piece of paper and assured UK orders for your candidate, which would you propose?
 
Three engine options
SLE = Single Large Engine
Olympus, Gyron, Medway, Conway, RB.170 large.

TME = Twin Medium Engines
Avon, Sapphire, Spey, Bristol options

TSME = Twin Small Medium Engines
Gyron Junior, Bristol BE.30 BE.33 or later B.75, Armstrong P.172, RR RB.123 series, RB.153, RB.172 original.

Radar options
Developments of AI.23
Or new AI.24 FMICW (not Foxhunter)

Wing options
Conventional using blow.
Variable Incidence.
Variable Geometry.

Best case for then CV Fleet is either SLE or TSME.

Most affordable case is SLE.
Conventional Wing with blow is also cheapest and simplest option.

Further wing development
Delta wing and tail arrangement
Options from 40 degrees to 60 degrees or cranked/ compound type of high inner sweep (60-75 degrees) and lower outer (50-30 degrees).

Swept wing and tail
Range from 40-60 degrees sweepback.

Canard and swept or Delta
Wing from 25 to 70 degrees sweep or cranked/compound

Alternative complex ogive options.

Wing position options.
High single piece, forces main gear to pods or fusilage. Leave engine access ventrally highly desirable. Easy change of engines later on.

Mid twin piece, easier for internal main gear storage. Main spars limit engine diameter options after construction.

Low complex structure, main gear stores inside. Engines removed from rear, later engine changes impose fusilage issues.

AW.406 optimal wing is 58 degree tailed delta for fighter requirement but 42 degree swept wing better for Strike and Attack.

Further into AW406
Aircraft wing can be calculated to something between 300sqft to 400sqft for TSME or SLE
Weight dry between 22,000lb to 28,000lb
Loaded for fighter ops depending on endurance (fuel) desired and catapult limitations.
MkIV uprated 151ft stroke should launch between 35,000lb to 40,000lb for TO to sufficient for aircraft flight. Assuming reheat and various degrees of blow.

Landing with mk14 updated arrested system and 25kts WOD (ship speed sustainable) should recover aircraft with reserves for bolster, go around and second try.

Ideal is SLE due to most efficient fusilage weight/volume. Twin engines imposes less efficient fusilage as more structural metal needed to house and support them.
Heavier fusilage imposes increases in wing structural weight for no increase in wing area.

Ideal wing is still VG but if using the SLE Type then good enough fighter/attack type is achievable.

Essentially something between the Mirage F2/F3 or Mirage G/Type 585 delivers the most capability for something that will operate with wide margins from RN and MN CV Fleet.
 
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