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lumpy

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  • in reply to: Flippin Doodlebugs! #1050661
    lumpy
    Participant

    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

    I believe it may be because there is a high pressure area above the wing too . Its not as high pressure , but is generated just behind the leading edge , before the pressure reduces to form lift ( think of it as the leading edge slamming into the oncomming air , its going to form a little high pressure wave on the top too ) . Ever seem a “cloud “form on top of a wing on a humid day – it doesnt start till about a quarter across the wing , where the lowest pressure is .
    I think if you were to approach a V1 from behind , this high pressure might be enough to destabilise it ( but if you were too far forward I would think you would be correct , they would suck together , not the end of the world , just a dented wing as you flip it manually )

    in reply to: Oil or Fuel #1053699
    lumpy
    Participant

    From a wartime publication for Bristol aero-engines:

    The guys that ( ground ) run the local B170 Bristol Freighter pull the props through ” 8 blades ” by hand . If it goes through ok then its fine to use the starter .

    in reply to: What Liquid is Leaking? (SE.5a) #1055142
    lumpy
    Participant

    Venting a little coolant doesn’t necessarily mean there is a problem; with older cars I always used to fill the cooling system and let the excess be ejected.

    Same with racing dirt bikes , you just fill the radiator up , and let it blow off the excess ( it will only do it the once , till the level has gone down to a certain level ) . Road bikes ( and newer cars ) use an expansion tank which does ensure the radiator stays full at all times ( with some benifits ) , but mostly is just there to ensure antifreeze isnt dropped onto roads .
    If the engine was allowed to get a little hotter than it ever has been since the radiator was last filled , then ejecting some coolant will be normal .

    in reply to: The sound of a Focke Wulf Fw190 #1072334
    lumpy
    Participant

    Personally I thought the Ash engined FW190 sounded good . Whilst it wasnt the same sound as a Corsair , it certainly wasnt like an I 16 either .
    I would suspect that much of the noise you hear in flight is prop noise , and since its a different configuration from the Corsair its bound to sound different . Just my opinion , but I liked it .

    in reply to: Help to identify aircraft type #1088314
    lumpy
    Participant

    A stall is simply caused by the wing having too much angle of attack . It can be caused by trying to fly too slow , as would have been the case here , but can also be caused by miss useing the elevator control ( hauling the stick back really hard – known as a high speed stall ) . Sometimes pilots will induce a second stall , by pulling back too hard on the stick when recovering from a previous stall . So its not just about air speed ( but in most cases thats where people go wrong )

    in reply to: Airframe cleaning with WD40 #1106679
    lumpy
    Participant

    WD 40 is nothing more than Kerosine ( I think about %80 from memory ) with a few additives

Viewing 6 posts - 31 through 36 (of 36 total)