Who would like to tell me how many swing-wing vertions of F-4 PhantomII has existed? Would you please take trouble to show me those drawing?
Thanks in advance
Phantom FV Challenging F-111B
THE MCDONNELL PHANTOM development studied as an alternative to the GD/ Grumman F-111B for the US Navy is understood to be designated the Phantom FV. A Navy-funded project study has been under way at St Louis for some months, reflecting official doubts about the prospects of the F-111B intercepter ever reaching fleet service in the face of severe difficulties with its Phoenix missile system, and on the score of excessive weight. The Phantom FV has increased wing area and is projected around the -10 development of the J79 engine. This powers the new F-4J Phantom now proceeding along the early stages of the St Louis assembly line in parallel with the first YF-4Ks for Britain. The -10 has about 9001b more static sea-level thrust that J79s in current production Phantoms. Another major innovation projected for the FV is a discriminatory multi-shot fire-control system (see Sensor, December 16) with a capacity to lock on to as many as six targets simultaneously. The most threatening target at any one time is selected automatically for attack and the process continues in a descending order of threat.
STRETCHED PHANTOM ENTERS LISTS
A STRETCHED MCDONNELL PHANTOM, with potentially an even greater proportion of British equipment and components than the present F-4Ks and Ms ordered by Britain, has been submitted by McDonnell as an eleventh-hour contender in the TSR.2 replacement battle. Following the virtual elimination of the Buccaneer S.2* from serious consideration for the RAFs primary strike/recce role, the choice now lies between the all-American F-111 and the partly-anglicised Spey-Mirage and Spey-Phantom FV, with the Air Staff doggedly sticking to its preference for the first-named type. Both MoD (Air) and MoA press officers hastened last week to deny that the stretched Phantom was being seriously considered. The Air Department, in its pressing for the F-111, could hardly say otherwise, but evidence suggests that the proposal is far from dead elsewhere. The Phantom FV (first mentioned in Flight for December 30) began life as a $1 million (£357,000) USN-funded feasibility / preliminary design study which is due for completion in August this year and for which extra funds are expected imminently. Intended essentially as an alternative to the problematical,over-weight F-111B, the Phantom FV would be about 20,000lb lighter. It would have an improved -10 version of the J79 engine and a larger wing area than present Phantoms, and be equipped for the air-superiority fighter role with Sparrow missiles, in place of the F-111B's Phoenix. It would have significant increases in ferry range (and CAP endurance), speed and payload over existing F-4 versions. The Phantom FV could be rolled out in the summer of 1968 if the present study is followed by a development contract. The essential changes to present USN Phantom versions, through which the Phantom FV is evolved, are equally applicable to the anglicised F-4Ks and Ms, for the RN and RAF respectively. The fuselage is little changed in the stretched version; having already been substantially redesigned in the case of the K and M to accommodate the Spey 25R, the K/M fuselage structure would carry over into a British version of the FV. The powerplant would be the RB.168-27R, a projected development of the current engine in which changes are made mainly to the afterburner and nozzle with, possibly, an extra compressor stage being added for increased mass flow. The thrust is little changed over the -25R but the s.f.c. is significantly improved.
The Spey-powered Phantom FV could carry the advanced air-to-ground radar, head-up display, terrain-following and map-matching systems developed for the Buccaneer S.2*, together with the inertial-navigation system, the navigation computer and the weapons-release computer which are going into the F-4M. (There would be ample space, too, for reconnaissance systems to be carried internally). Such heavy British participation on the electronics side, together with the logical extension to the FV of British sub-contract arrangements already made for the F-4K and M (e.g., outer wings by Shorts, rear fuselage and tail surfaces by BAC) would raise the value of British manufacture to about 60 per cent of the total aircraft cost. The present value of British participation in the F-4K and M is about 52 per cent of total cost.
McDonnell is pushing strongly the high level of British participation if the Spey-Phantom FV were chosen in preference to the F-lll, with the political attractions of extending work for the British industry, the logistic advantages of local component production and wide spares interchange with the K and M, and the economic attractions of its overall cost This is claimed to be less than 50 per cent of any recent, realistic estimate of the F-lll's cost, which is now approaching £3 million. There would be little conversion training for pilots experienced on the earlier Phantoms lready ordered, and the Spey-Phantom FV could be ready in 1969. It is claimed that the aircraft would meet 90 per cent of the requirements of OR.343, the TSR.2 specification—a claim which, if valid, represents scarcely any greater shortfall of the TSR.2 OR than that required to "fit" the F-111, and probably less than the shortfall which would result from adoption of the Spey-Mirage.
Hard to eject at high speed, unless you make other plans...
Note how the maximim cord of the wing in slow speed mode can
become the high speed span.
Mark Nankivil said:Here's one more that fits here better than any other thread. From a September 1, 1970 summary report, here are a couple of pages of the proposed single seat version of the F-4E(F) for West Germany. I always had in mind a single canopy version for the initially proposed single seater but as shown, the canopy stayed the same but the aft cockpit is fully stripped out so as to save weight. The listing of weight reductions is interesting too.
Mark Nankivil said:I've scanned another report in the same batch at the museum "F-4 Modernization Program - Phantom II+ For The 21st Century" dated January, 4, 1985. This was a proposal to the USAF for a thorough overhaul to the Phantom including new avionics, glass cockpit, new engines (PW1120, F404 and an improved J-79) and various other tricks and upgrades to get the most out of the basic airframe.
kaiserbill said:I notice that they were talking about an increase in thrust in the new J-79 version, but omit to mention what exactly the total thrust improvement was. Anybody know?