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Archer

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  • in reply to: Your first Spitfire #963980
    Archer
    Participant

    As I mentioned in a previous post, it was MK959 for me too, but I can now post the photo as well:

    http://www.vc10.net/div/MK959_EHV_1989.jpg

    My best guess is that this was sometime in the fall/winter of 1989, it had just been placed back on the pole after refurbishment. The gear was retracted a few days or weeks later.

    in reply to: That VERY low DC-8… Video "The Human Fly"… #965190
    Archer
    Participant

    From the quotes under the Youtube video:

    from Clay Lacy: “We made a mount for him,” said Lacy. “He couldn’t have gotten off if he wanted to. He always told people he was up there at 300 mph, but we never flew that fast. The fastest I ever flew him was 220 knots, once, just for a short burst. Most of the time, we were flying at 175 knots.”

    in reply to: Your first Spitfire #969486
    Archer
    Participant

    I guess the first one I saw was MK959, then still on a pole outside Eindhoven Airbase, The Netherlands. I’ve got a photo somewhere but I haven’t scanned that negative yet. I’m currently working my way through several years of negatives, running them through a decent scanner one at a time until I get bored of it again or my better half starts objecting to the mess on the dining table.

    One I did scan is the image below. I’ll argue that this is the first time I saw a Spitfire in its element. A lot more impressive than seeing one stuck on a pole!
    http://www.vc10.net/History/Images/Spit_MK732.jpg

    This was its first foray outside the UK after restoration, with Dan Griffith flying her to Leeuwarden for the 50th of 320 Sqn. This photo was taken on the way back (13 June 1993) somewhere over The Netherlands between Leeuwarden and Rotterdam (I wasn’t really paying attention to the route I’m afraid).

    I took the photo below a few weeks later on 2 July 1993, when it was back in The Netherlands for the Airforce Open Day at Eindhoven.
    http://www.vc10.net/div/MK732_Hercules_020793.jpg

    in reply to: Mossie KA114 #969665
    Archer
    Participant

    Mosquito KA114 is Avweb’s Refurb of the month: http://www.avweb.com/avwebflash/refurbotm/RefurbOfTheWeek_JerryYagen_deHavillandDH98Mosquito_207992-1.html

    Looks like mr. Yagen has a sense of humour. There are some nice photos included, I like the cockpit shot at full size, it is large enough to read all the small print. Really gives an impression of the attention to detail on this restoration.

    in reply to: VC-10 Retirement Thread (merged) #971429
    Archer
    Participant

    Indeed, it was built to test the fuselage structure under different pressurisation and temperature conditions. I’ve got some info and photos on this test section here: http://www.vc10.net/History/Individual/testspecimen.html

    So fuselage-wise Brooklands has 2.5 VC10s, but they’re short on wings… 😉

    in reply to: VC-10 Retirement Thread (merged) #971608
    Archer
    Participant

    The Cosford VC-10 wasn’t entirely scrapped, the forward fuselage is now at Brooklands.

    Correction: the complete fuselage is at Brooklands and has now been restored. It houses a new exhibition about the VC10.

    Photos and story here: http://www.vc10.net/History/Individual/GARVM.html

    in reply to: Mosquito KA114 Take Off Handling Questions #972249
    Archer
    Participant

    Archer;cavitation; look at the photos of any heavy prop job on a moist atmospheric day on take-off…

    No, that’s condensation, a sudden drop in pressure which causes moisture in the air to change phase from gaseous to liquid.

    Or listen to a Harvard/Texan!

    And that is the result of local supersonic flow over the prop blades, which because of the sudden change in pressure can cause condensation.

    Cavitation is the situation where the local pressure in a liquid drops enough to cause vapour bubbles to form, which then collapse.

    in reply to: Mosquito KA114 Take Off Handling Questions #973601
    Archer
    Participant

    Torque is proportional to the power being put into the props. The more power the engine puts into turning the props in a clockwise direction, the more the engine wants to turn the other way (and, as it is attached, the aircraft). This is more pronounced on single engine airplanes as this torque acts around the CG. The prop doesn’t let you know that it is in its governing range, but you will notice as the rpm remains constant. Below a certain power setting the governor is trying to increase the prop rpm but is unable as the blades are at the fine pitch setting, as the power increases the prop gets into the set rpm range and then the governor keeps it there by increasing the blade pitch. As from that point on the rpm stays the same (and the mass of the prop as well) the amount of torque also stays more or less the same.

    So with the engines stabilised before brake release you are keeping the number of variables during take off to a minimum. There may still be a bit of swing from P-effect as the aircraft gets its tail up but that’s another thing again.

    Ie the pitch becomes coarser as the boost is increased indicating higher altitude and thinner air? But this would then be cavitating at GL… with poor performance but high torque reaction.

    Cavitation only happens in liquids, so we don’t get that with props. As altitude increases the prop meets less resistance from the air but also delivers less thrust as the mass of air it can accelerate decreases.

    in reply to: BBMF Lancaster tail fins #976588
    Archer
    Participant

    Have a read through this thread: http://forum.keypublishing.com/showthread.php?t=117969

    And welcome!

    in reply to: VC-10 Retirement Thread (merged) #978473
    Archer
    Participant

    Not straight away but if you keep an eye on this thread on my forum (see below) then someone will post an update of the movements at Brize sometime. You’ll be able to pick out the date and if you’re lucky there’ll be only one VC10 movement on that date.

    http://www.vc10.net/forum/viewtopic.php?f=4&t=544&start=105

    There are six VC10s still active but one of them is at the Falklands (ZD241) so there are five options.

    in reply to: VC-10 Retirement Thread (merged) #980138
    Archer
    Participant

    Yes, there are several survivors already, but the ones at Brooklands and Duxford do show a lot of corrosion. The fact that non of them will likely go inside in the near future is somewhat worrying.

    Indeed that is worrying, and it would be a shame to discount them and move on to the ones coming from the RAF sometime in 2013 (if current plans are to be believed). The Super VC10 at Duxford is the only one which is preserved as an airliner and therefore a unique example. Both the Brooklands Standard VC10 and the Hermeskeil one are in VIP fit, and the C1K which will go to Cosford, as well as the one which will stay at Bruntingthorpe will be tanker/transport variants. So that’s three (or four) different VC10 versions. As the VC10 was originally designed and built as an airliner I wouldn’t mind a bit of attention for the civil VC10s preserved in the UK. I prefer to look at it from a different angle: the ones which will be delivered to the museums in the future will be in good nick and will therefore be safe for a while, it’s the ones already preserved that need our attention now.

    in reply to: Mossie in NZ film #993103
    Archer
    Participant

    Great video!

    The guy that did the Ghosts calendars is Philip Makanna, this seems to be someone else.

    See here: http://www.ghosts.com/

    in reply to: Spitfire HF Mk.9 RR232 #1002287
    Archer
    Participant

    Chris, you may want to buy his book: http://www.spitfiresurvivors.co.uk/

    in reply to: Brooklands aircraft tooling #1011754
    Archer
    Participant

    For reference, these lumps are still around and are indeed TSR.2 skin formers:
    http://www.vc10.net/div/skinformers.jpg

    in reply to: Brooklands aircraft tooling #1011965
    Archer
    Participant

    Cannot see anything when I click that link, the forum requires me to register first. Could you explain a bit more, or provide a different link to the images?

Viewing 15 posts - 601 through 615 (of 1,614 total)