starviking said:For the bigger files, I seem to recall the forum has a section for them. Can any mods help?
CJGibson said:Wolverine - BAe Dynamics Anti-Tactical Ballistic Missile system based on VL Seawolf using a guidance system called Missile Reference Command to Line Of Sight (MRCLOS) and fitted with a flechette warhead.
From Late 80s/early 90s (but may be post-Granby) I think. I've seen it mentioned in a copy of Janes.
Chris
Sometime in the early 1970s it seems to have been decided that the "low-level" threat mandated the reintroduction/sustainment of the Bloodhound force in the UK with deployments that look like they were intended to defend USAF and RAF force concentrations in East Anglia and to a lesser extent in Lincolnshire. By the late 1980s this threat perception was such that there was an active replacement effort (MSAM); which based on the proposed solutions looks a lot like GAST.1210 from twenty years earlier (1967-68).
There was an ulterior motive though; NATO would fund hardened aircraft shelter construction under it's Physical Protection Programme if certain requirements were met. The Bloodhounds brought back from Germany helped to meet those requirements.
Wolverine is a curious beast, I have only ever seen it mentioned in old magazines from the late 1980s. I originally assumed it had something to do with MSAM but I am starting to wonder if it was as much private venture as anything else as it was apparently submitted to a US Army Strategic Defense Command Invite-Test-Show programme. Either way Wolverine seems to come about twenty years after Landpax.
In 1969 Hawker Siddley Dynamics (HSD) proposed an anti-ship sea-skimming variant in which the ramjet sustainer would have been fuelled with Shelldyne instead of kerosene. As Shelldyne was denser it would have given the missile a significantly greater range, approximately 37km (the same range as the missile in the conventional 'up and over' trajectory) as opposed to 24km. The missile would have used the same CW radio altimeter as proposed for Seaslug; this altimeter was fitted to the Phantoms built for the FAA. It was intended to fit a semi-armour-piercing warhead immediately behind the nosecone, and move the electronics back into the space normally used by the radio fuze.
The proposal included a diagram of a suggested stowage order so as not to detract from the ship's ability to provide air defence.
Looked at a file about Landpax yesterday, very interesting but can't add too much to what is in BSP4 aside from diagrams of proposed system components that I have belatedly realised I failed to photograph. Basically the objective was a medium range SAM system for the Army and RAF to sit above ET316/DN181 (to be Rapier) and this was developed as a requirement in the late 1960s under GAST.1210 (the document I looked at is dated 1968).
I was only looking at a Landpax document rather than a the full requirements document but it appears that five solutions were considered; four PX430 variants and a land based version of Sea Dart. Of the PX430 versions the "Landpax 20" version was favoured simply because it got closest to the GAST.1210 requirements (though as far as I can tell was still short of them). The four different versions of the proposed Landpax missile seem to have varied almost entirely in the length of the VL booster (yes, Vertical Launch) they used- longer boosters giving greater range. It was also proposed to use a different booster burn sequence compared to regular PX430.
If anybody has a requirements number or some other hook for SAM.72 or XPX.430 I would love to go looking for that.
BS 645 - GAST 1210 Joint services surface to air weapon system. A preliminary feasibility design study of propulsion requirements: The preliminary proposals are made for two variants of a booster/sustainer packaged liquid propellant rocket engine to fulfil the requirements of GAST 1210 surface to air missile specification. Page 12: In 1600 firings over the temperature range -54 deg to +71degC, the LR 58 engine for Bullpup 'A' established a reliability rating better than 99.7%. There is naturally no relevant reliability figures for the engines proposed in this study. The Stentor and Gamma units have an excellent reliability record. For all Blue Steel R and D rounds fired, the Stentor engine has a reliability rating of 92.6%. This figure has naturally improved as the programme has progressed
Some notes on the preliminary feasibility study of a joint services surface-to-air weapon system: In a study of future weapon system needs, there is seen to be a requirement for a joint services, point defence, surface-to-air tactical weapon system. It is envisaged for the protection of sensitive military targets covering a ground area of about 2 Km in diameter against a variety of airborne weapons. Provisional missile design data: (a) The weapon system comprising a battery of 24 missiles complete with their carrier, and the integrated control and tracking systems, should be air transportable and 10,000 lb max all-up weight, (b) The missile should be capable of being vertically launched from its carrier, (c) A range of 30 Km is required. Engine design considerations: The boost/sustainer rocket engine considered in this feasibility study is a packaged liquid bi-propellant unit and the selected propellants are the hypergolic combination of mixed hydrazine fuel 3 and chlorine trifluoride. The distinctive characteristics of these engines is that the tanks are filled and hermetically sealed at the factory during manufacture so that there is no danger of leakage
I assuming that the USN Talos and the aborted Typhon Missile has similar issues with their ramjets? Seems like it be obvious but you never read of them...The challenge with Sea Dart for any launch was getting the ramjet going. On the basic Sea Dart its Chow booster burned for 2.2s with about 80% of the propellant (double base NG/NC) was expended in the first 0.7s. This first phase was to get thing off the rail, stabilise it and punch it through the sound barrier drag rise. The remaining propellant (Composite AP/Al) held the missile at about a steady 1.3Mach to allow ramjet light up.
The Sea Dart 2 was to have the Extended Chow booster with TVC, but didn’t remember it was vertical launch. Although it had been cancelled by the time I joined, I remember being told it had about a 0.5s extension to the second stage burn to permit a period of manoeuvred prior ramjet light up. The problem this created was an even larger minimum engagement range;- not good. Extended Chow was ground tested by ICI because I remember seeing a film of a ground test. I also remember comments about vertical launch but I don’t think it got very far as study.
As I’ve said on here before, nobody in the industry liked the load, point and shoot rail launcher;- way too much to go wrong but the Navy were keen. The Falklands experience validated the industry point of view.
This?
I have quite a lot of material for a variety of British missiles which never made it for a variety of reasons – obsolescence, financial, or whatever. However, although it might be of great interest to those on this forum, it is hardly likely to be a great best seller.
I can supply a PDF of the full report to anyone who is interested, but it will be a large file, and so I will have to send it via something like Wetransfer, which means giving me an email address.
I'd certainly appreciate a copy. If you want to, the file could be hosted on the forum server.At the time, I think there was interest in what might be called "package propellants", and so Bristol Siddeley was given some money to look into the idea. Versus solids, there are arguments either way.
The Skybolt book began as a work on stand-off missiles, but Skybolt expanded to such an extent that squeezed everything else out.
I have quite a lot of material for a variety of British missiles which never made it for a variety of reasons – obsolescence, financial, or whatever. However, although it might be of great interest to those on this forum, it is hardly likely to be a great best seller.
I can supply a PDF of the full report to anyone who is interested, but it will be a large file, and so I will have to send it via something like Wetransfer, which means giving me an email address.
Lightweight Sea Dart cannister. From a paper by Captain R Villar to the 1980 High Speed surface Craft conference.