dark light

AgCat

Forum Replies Created

Viewing 8 posts - 331 through 338 (of 338 total)
  • Author
    Posts
  • in reply to: Historic Glider collection #1350863
    AgCat
    Participant

    RAF GSA

    The RAF GSA Centre has moved out to Halton. Bicester is now the home (since July 2004) of the Windrushers Gliding Club, a civilian club. The airfield is on the market as a listed site, with expressions of interest due in no later than next week.

    in reply to: Buccaneer Pics #1357755
    AgCat
    Participant

    FAA MUSEUM – XV333’S SERIALS

    Plazz has posted a pic of XV333 in the carrier deck display in the FAA Museum showing its rear fuselage and underwing serials. Where on earth did they get the idea that Buccaneer serials should look like that? The Museum has lost all its credibility for historical research and accuracy on this one.

    Happy New Year!

    in reply to: Bolt info needed #1438681
    AgCat
    Participant

    That’s very interesting AgCat. Would you happen to know when the change over from the A1 to the A25 specs took place?

    Another thing. I’m having a blond moment 😮 What does peen-ing mean?

    Galdri, not sure when the change took place but I am sure that the Gemini would have been specced with A1 bolts – that is what they used in those days.

    Peening meeans that you use a plain nut on the bolt and to lock it to prevent it becoming loose in flight you deform the end of the bolt by burring the thread over with a hammer. Alternatively, the nut could be ‘staked’ at about four points around the thread circumference by burring the nut into the thread using a centre punch. Try to do that with an A25 high tensile steel bolt without proper support for the bolt and wooden structure can be easily damaged.

    in reply to: RAF Queen Mary Trailers #1438710
    AgCat
    Participant

    Here’s a question.

    Are there two lengths of Queen Mary? Of the pics I’ve been looking st, the panel aft of the mainwheel seems either to be short or long; i.e. the cross bracing seems more of a X than >< – but the pics and drawings I’ve got seem unclear on this point. While thise seems daft, it’s not unprecidented; the world famous Routmaster London Bus comes in 2 lengths, easilly distinguisable by the centre window being square or rectangular. You’d never notice, then when it’s pointed out, you can’t miss it.

    As to why Queen Mary, I have no idea – perhaps cos it looked as long as an Ocean Liner?

    The QM has been through many iterations and many were built during the war and many after the war. There have therefore been a number of subtle changes to the design because of changes over the years to the road transport Construction and Use Regulations. For example, I think the QM pictured at East Kirkby is not a genuine WW2 example, but it was built in the late 50s/early 60s. The bit sticking out behind the wheel is different to the WW2 ones, and so is the trailer wheel. I think that the East Kirkby trailers were rescued from a farm at Willoughby (near the coast) and that when in service they were pulled by S-Type Bedford tractor units.

    In the late 70s/early 80s there was a different version of the QM trailer which had the wheel right at the very back of the load deck (I think Bruntingthorpe had an example of one of these a few years ago). These trailers were very difficult to handle on the road, especially round tight corners, and I did hear that these trailers may have been dubbed “Queen Elizabeths”.

    Latterly, the basic QM configuration has been retained but with the use of twin normal-sized lorry wheels at the back. Whilst the QMs were generally built by Taskers of Andover (and later by, I think, Trailmaster after Taskers went under), the twin-wheeled versions have been built by the likes of King, Oldbury and also Trailmaster (I think).

    Would welcome contact with anyone who has more data on QM and other vehicles of RAF.

    Keep on Trucking.

    in reply to: Bolt info needed #1438725
    AgCat
    Participant

    I do have a copy of the aforementioned book, and could copy it for you if need be.

    Are extensive drawings still available? I am not a Miles expert, so dont know what is around. They would give bolt sizes. The only thing to note is that some of the numbers have changed since they were first produced – for example, A1 (Bolt) has become A25. There are cross references, or just ask!

    Bruce

    There is a trap here. If the Gemini was specced with A1 bolts, take care when substituting A25. The A1 bolt was sized by overall length. The A25 bolt is sized by the length of the plain shank. This is an issue which affects old DH aircraft such as the Tiger Moth. There is an approved mod to change from A1 to A25 bolts on the Tiger and other Moth aircraft, but care is needed in the substitution. Care is also needed if the method of locking is by peening. A25 bolts are much harder than A1 bolts, and if peened wrongly, wooden structure can be easily damaged.

    in reply to: Silly question #1551939
    AgCat
    Participant

    Gp. Cpt. Cunningham also managed to land a Vulcan there as well so I am told, so you can land anything there once…

    Are there any piccies of the above event floating around anyone’s hard drive?

    JC landed, I think, the first of the two Comets to be used as training airframes at Halton.

    Halton had a total of three Vulcans, the last (B1A XH479) flown in from Waddo by a crew from AAEE. The date was 28th June, but I’m not sure what year – probably 1967. There was an article in ‘Air Clues’ describing the preparations for the mission, including pics of the landing.

    in reply to: Bolt info needed #1551971
    AgCat
    Participant

    Is the restoration to airworthy standard? If so, use British hardware.

    in reply to: US Use of Tallboy / Grand Slam… #1612737
    AgCat
    Participant

    In 1946/47 as part of Project Ruby, USAAF B-17s and B-29s operated from Marham, dropping a series of bombs onto the U-boat pens at Farge. the B-17s carried Disney rocket-powered bombs on external bomb racks mounted under the wing root area.

    The B-29s were used to carry Tallboy, Grand Slam and Amazon bombs (the Amazon a US equivalent of the Grand Slam in terms of weight, I believe). To load these biggies, the 29’s bomb doors were removed and special releases were fitted. To get the bombs into the aircraft a hole was dug in the ground, the bomb put in the hole and then the aircraft was towed over the top of the bomb which was then winched up to be carried semi-submerged in the belly of the aircraft.

    The Grand Slam was designed to be dropped from an altitude that the Lancaster could not get to. Only the B-29 could get it to its optimum release height (35,000 + ft?). There were some pics of the Marham-based B-29s published in Flight at the time.

Viewing 8 posts - 331 through 338 (of 338 total)