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Robert Hilton

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Viewing 15 posts - 436 through 450 (of 673 total)
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  • in reply to: Phantom Phantoms ? #1248333
    Robert Hilton
    Participant

    The lightning is XI(F) sqn’s gate guard, now with them at conningsby – the long running gag on the squadron was for new guys to be sent to ‘BF the lightning’. Bloody hilarious….

    (BF – Before Flight servicing)

    The phantoms were apparently painted on after the real ones were chopped. The remaining one is alledgedly inside a hangar now…. and may not have to be killed i.a.w. salt II…. ๐Ÿ˜‰

    We used to send the new boys to check the tyre pressures on the gate guard at Honington. Always garanteed to get them a bollocking from the SWO.

    in reply to: Thrust Vectoring…..is it all really worth it? #2490816
    Robert Hilton
    Participant

    You folks in the UK didn’t learn how to summarize (or it it an issue with comprehension) ? If its “half a page” you can surely “checkmate” my attitude by informing ALL of us what the article said about the MKI. Who did they speak to from the No.20/30? Is is really that hard?

    If its that hard…send me a pdf or jpeg I will do it for you.

    But its quixotic to assert that this article will be the reference standards when a lot of stuff is just assumed.

    Also OP….AFM is from UK? You need to be a bit more innovative when it comes to excuses. TVC from UK too?

    Having read all the posts I would like to point out that in the “old days” when the Harrier was still the ‘Bionic Budgie’ viffing (vectoring in forward flight) was first tried out by the US Marines. They stated that it improved their kill rates. The RAF did some trials in the late ’70’s early ’80’s and were less than charmed. They found that while it was good for getting out of difficult (ie dangerous) situations, it wasn’t very good for getting the other guy in your sights. Mind you, fly by wire wasn’t fitted to all a/c then it might give you the edge when you’re in a dogfight but some dogfighting rules seem set in stone.
    Gain height
    See him before he sees you
    Attack from the sun
    Hit once
    If you don’t succeed get the hell out

    in reply to: RAF future tankers #2492490
    Robert Hilton
    Participant

    Well, when the Victor K2’s were our only assets there were 24 at most.The Victor had a much smaller fuel load than the present aircraft have and there were far more aircraft in the inventory that needed servicing. I canยดt see why 14 airframes shouldnยดt suffice.

    in reply to: RAF future tankers #2492513
    Robert Hilton
    Participant

    The simple answer I suppose, is money.

    in reply to: Aircraft engineering #433574
    Robert Hilton
    Participant

    This is almost certainly XH668 although no tail number has been applied

    in reply to: Aircraft engineering #433581
    Robert Hilton
    Participant

    Ive just done reserch into the aircraft and couldnt think of anythink else….i use it all over the forums

    is there a problem?

    None whatsoever, it’s just the tail number and your avatar don’t match.
    I was curious that’s all.

    in reply to: Aircraft engineering #433583
    Robert Hilton
    Participant

    A silly question but why do you use the tail number of the (ill fated) Victor B2 prototype?

    in reply to: VULCAN B1 & B2 Difference's #1256636
    Robert Hilton
    Participant

    I don’t know much about the Victor 1’s, but I would think there were some similarities electrical system wise which were remedied in the Victor 2’s.

    Indeed, the B1 used 115v dc gennies and the B2 200v ac run through CSDU’s. The small intakes under the mainplane are the oil coolers for them.

    in reply to: VULCAN B1 & B2 Difference's #1258259
    Robert Hilton
    Participant

    Now thats exactly what i wanted, great info chaps, much appreciated. whilst were on the subject what about the B1 & 2 Victors ๐Ÿ˜‰

    The major differences were.
    The 18″ stub wing, the mk 1 had intakes blended into the fuselage the mk 2 you see a parallel section of mainplane before the intake

    Longer span, indeed when they were converted to K2 they were cropped slightly.

    Conway engines instead of Sapphires

    RATs the scoops are visible on the top fuselage.

    Extended intake in front of fin

    Shock bodies (window boxes, Whitcomb pods etc) on trailing edge of mainplane.

    AAPP mounted in stbd side stub wing.

    Internally.
    An improved electrical system

    Improved avionics

    No 2 tank fitted

    No 9 tank fitted

    in reply to: MH434 Rivets #1259309
    Robert Hilton
    Participant

    That wouldn’t surprise me, it still happens.

    in reply to: MH434 Rivets #1259631
    Robert Hilton
    Participant

    Yes…but not this one. ๐Ÿ™‚

    Mark

    MH434, part of 9th order to contract no.981687/39/C23(c) for mk Vc’s but built as mk IX. Built at Castle Bromwich.

    in reply to: MH434 Rivets #1259693
    Robert Hilton
    Participant

    Started as MK V and at the end it was MK IX, during the war these guys got to be very drunk or stoned or thinking about their wifes…no idea, but something went wrong… ๐Ÿ˜‰ :dev2:
    Tom

    Actually, the first mk IX’s were converted from mk V’s.

    in reply to: Victor XL231 And Nimrod XV250 Work Diary #1260269
    Robert Hilton
    Participant

    Hi Robert,

    Unfortunatly we do not have a Zero stage measuring device, I have never heard of such a thing! What was its purpose and is there any other method of detecting an imminant faliure (unusual vibrations etc?). Making me nervous all this talk of zero stage faliure!

    Ollie

    The zero stage measuring device was a Heath-Robinson contraption consisting of a base with two datum points fore, a perspex strip perpendicular to the base with three lines on it. The lines were one black and two red (if I remember correctly) marking out the nominal and acceptable twist limits of the blade. There was a rod mounted to it to help you place it on the base of the blade. The thinking was that if the zero stage started to twist it would fail iminently. I personally never found a single blade ven close to the limit. The two main reasons a zero stage can fail is if it falls off the front bearing (it hangs in front of the bearing if I remember correctly) or if one blade stops moving and the rest catch it up ie breaks off.
    How do you detect a zero stage failure? Generally by the time you think that something doesn’t sound right, there is a big bang and it’s happened.
    The most important whenever doing high rpm runs, directly into wind.

    in reply to: Victor XL231 And Nimrod XV250 Work Diary #1261196
    Robert Hilton
    Participant

    Yes, we have always been concerned about the high rate of zero stage failures on Conways. We keep a close eye on them and do a visual check before and after every run. We also make sure we don’t run the engines with no forward movement above 60% in order to minimize the stresses on the compressor stages of the engines.
    Ollie

    Always, always directly into wind when running. One airframe (the number escapes me) had two engines with a strain gauge fit in the mid ’80’s. It showed that the strain rose considerably when there was a cross wind over the intakes. The intakes on the mk2’s had always been abit small for the airflow and fitting the zero stage made it even worse. It’s not for nothing that they screech so hard at max rpm. Don’t you have a zero stage measuring device? Not the easiest thing to use, but it gave you a rough idea when they would let loose.

    in reply to: Victor XL231 And Nimrod XV250 Work Diary #1261395
    Robert Hilton
    Participant

    so another 4000 hours added onto her airframe thats a fairly impressive figure, spare conways wont be hard to come by, since the VC10’s are on their way out soonish, when ive made my millions, ill be in touch ๐Ÿ˜€

    You’ll have to stock up on Conways, ‘cos when them zero stages start failing you’ll be busy. One bit of luck at least it isn’t XL164, no 4 engine was always a pig to fit.

Viewing 15 posts - 436 through 450 (of 673 total)