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|RLWP

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Viewing 15 posts - 466 through 480 (of 531 total)
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  • |RLWP
    Participant

    In that thread it says:

    According to A.P.1086, Section 27A, a AHO5048/IX wheel was fitted to some Albemarles, Ansons, Defiants, Hurricanes and Lysanders

    So it could be a Hurricane wheel, or it could be from another aircraft in that list

    Richard

    in reply to: Caption time #1049892
    |RLWP
    Participant

    GOAL!!!!!

    in reply to: Caption time #1049936
    |RLWP
    Participant

    Well, the undercarriage is gone, no hope of landing. I just hope I can grab that branch OK

    Richard

    in reply to: Flippin Doodlebugs! #1050387
    |RLWP
    Participant

    That makes it even more confusing then. If the low pressure isn’t there, then surely you could ignore pressure effects completely. Unless you get a constriction between the wingtips which would suck the wings together.

    I’m not trying to be awkward here, just trying to understand how it worked. I was OK when it was the wingtip of the interceptor raising the wingtip of the bomb, that I could understand…

    Richard

    in reply to: Flippin Doodlebugs! #1051526
    |RLWP
    Participant

    If there’s physical contact between the interceptor and the V1, the piloted aircaft is far better placed to recover the situation than the one which is merely gyro-stabilised.
    If there’s no contact, then perhaps it’s a matter of the trailing vortex from the interceptor’s wingtip proving a stronger destabilising influence on the V1 rather than the pressure distribution over the two wings.
    Well, that’s my two-pennyworth, anyway.

    So it could be the upwash from the lower to the upper side of the wingtip that is destabilising the bomb. That would have the advantage of tipping it away from the interceptor.

    Richard

    in reply to: Flippin Doodlebugs! #1051826
    |RLWP
    Participant

    {snip}

    These included using the airflow over an interceptor’s wing to raise one wing of the V-1, by sliding the wingtip to within 6 in (15 cm) of the lower surface of the V-1’s wing. If properly executed, this manoeuvre would tip the V-1’s wing up, overriding the gyros and sending the V-1 into an out-of-control dive.

    {snip}
    Hope this helps.

    This has got me scratching my head because I must be missing something. If you put your wing tip under the wingtip of the V1, you’re introducing a low pressure area (above your wing) into what was a high pressure area (below the V1 wing). Doesn’t the bomb wingtip drop and veer into your plane?

    There’s more to this than meets the eye.

    Richard

    in reply to: New Dambusters Programme on CH4 #1053761
    |RLWP
    Participant

    Oh, I see what you mean.

    No, attach the drill to the bomb release and spin it up to the required 750rpm whilst airborne and continue spinning until release (like the Lancs did)

    Baz

    Where would they get an extension cable long enough to plug it into the generator, silly??

    Richard

    in reply to: Spitfire at Reno Air Races #1057014
    |RLWP
    Participant

    http://www.vintagewings.ca/Portals/0/Vintage_Stories/ArchivedStories/SL72121.jpg

    SL271 from their website

    Don’t think she raced though

    Richard

    in reply to: New Dambusters Programme on CH4 #1060202
    |RLWP
    Participant

    {snip}

    At one point in the documentary, the pilot thought he was at 80ft, , he was actually at 180ft!

    {snip}

    I think that bit got rather confused. My guess is that the plane was at 80 feet, but not over the markers. The post and string height gauge would only work properly if the plane was actually in the right place. If it was too close to the shore, the posts and strings would measure it as being too high

    Richard

    |RLWP
    Participant

    This would give it a good run for it’s money on a rolling take-off

    http://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Dr1repl.jpg/800px-Dr1repl.jpg

    Richard

    wikipedia photo

    in reply to: New Dambusters Programme on CH4 #1060734
    |RLWP
    Participant

    I thought the opposite – by releasing later than he should, the mine almost bounced right over the dam.

    The much-maligned professor (yes he was irritating) had calculated the drop point exactly to achieve the desired result – the pilot almost ruined it.

    Great flying though…..

    Ken

    I guess my point is that this is what usually happens between design engineers and experienced ‘end-users’*. There’s a fascinating interplay between theory and practice. And you’re right, the pilot nearly lobbed it over the top

    Reflecting on the programme, I think it gave a fair insight into solving engineering problems on the fly – the short cable and the long stays, cutting down the shield to get air over the bomb, constantly upgrading the drills and grinders to spin the bomb, posts and strings to measure the height of the aeroplane. This all seems very familiar to me and showed the thinking on your feet aspect of engineering

    I wouldn’t have stood in front of the wooden bomb spun up to over 1000 rpm in the workshop mind. If that thing had got loose they’d still be chasing it now 😮

    Richard

    *sorry, I’ll go and wash my mouth out…

    in reply to: New Dambusters Programme on CH4 #1061177
    |RLWP
    Participant

    ..and the point was?

    Damn, you’re right. They could have made a whole series of celebrity cookery make-over competition programmes for the price of that two hours

    Richard

    in reply to: New Dambusters Programme on CH4 #1061179
    |RLWP
    Participant

    It’s a small thing, but I liked how eventually it was the guy holding the stick who decided where the bomb was to be dropped, not the engineer. What was it “I think that marker is too far away” or something, so he dropped later, lower and made a sure hit.

    I bet it was like that back in the war too.

    Richard

    Good engineering programme

    in reply to: New Dambusters Programme on CH4 #1061189
    |RLWP
    Participant

    I thought that was pretty good!

    Richard

    in reply to: Identity of aerial photographs #1071639
    |RLWP
    Participant

    Hi all,
    I am trying to identify the locations where the attached photographs were taken.
    (snip)
    Gerry

    So, the answer is – on the ground!

    :p

    Richard

    Good fun that, and I learned about British Restaurants too. What’s next?

Viewing 15 posts - 466 through 480 (of 531 total)