Prespin Question
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Prespin Question
I know there are several patents active for introducing prespin to landing gear prior to touchdown to save tyre wear and damage which is especially prevalent on larger aircraft.
Is anyone aware of any aircraft, commercial or military that has adopted any of these patents, and if so what impact has it had (forgive the pun) ?
Is anyone aware of any aircraft, commercial or military that has adopted any of these patents, and if so what impact has it had (forgive the pun) ?
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I used to find that a quick, light bounce or two before the final arrival achieved this quite satisfactorily. This technique has the merit of being applicable to a large variety of aircraft types without expensive mods.
Is the additional effort, cost and most of all weight involved really worthy of saving a little tyre tread?
This may explain why they are not commonplace but I am happy to be convinced otherwise.
This may explain why they are not commonplace but I am happy to be convinced otherwise.
ratty1
Thanks for clearing that up.
Correct me if I'm wrong MostlyHarmless but your post did have a slght hint of sarcasm about it...am I right? Or are you landings simply crap?!
TF
Thanks for clearing that up.
Correct me if I'm wrong MostlyHarmless but your post did have a slght hint of sarcasm about it...am I right? Or are you landings simply crap?!
TF
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There I was, wondering why this was on the Mil Forum and not the Eng and Tech Forum when, lo and behold, it has opened up a whole rich vein of humour.
We should really ask the Cabinet Office this question. After all, spinning is their speciality.
We should really ask the Cabinet Office this question. After all, spinning is their speciality.
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I'm going to patent my idea...
...spin them backwards and if you can get them going fast enough, you won't need any of that horribly noisy reverse thrust
...spin them backwards and if you can get them going fast enough, you won't need any of that horribly noisy reverse thrust
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And yes, that was sarcasm / humour; but I find it hard to differentiate myself sometimes...
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ratty1
Try highlighting all of the post by MostlyHarmless and you'll see the following...
You see. I told you, crap landings.
And yes, that was sarcasm / humour; but I find it hard to differentiate myself sometimes...
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On the old large aircraft (eg Hastings) they used to put scoop dimples in the tread which had a limited success in running the wheels up before landing. Bit of a bu$$er if the fitter put them on the wrong way round though.
ACW
ACW
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On no, totally serious. In fact, one trip I dispensed with that troublesome landing bit entirely, saving countless millimeters of tyre wear. Seem to recall they had a bit of an issue locating the tyres afterwards, though.
And yes, that was sarcasm / humour; but I find it hard to differentiate myself sometimes...
And yes, that was sarcasm / humour; but I find it hard to differentiate myself sometimes...
