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-   -   Looping a lynx - control inputs? (https://www.pprune.org/rotorheads/337397-looping-lynx-control-inputs.html)

[email protected] 2nd Aug 2008 06:56

Yes - just imagine - full forward cyclic, losing height quite quickly; 90 deg nose down, really going down quick now; inverted but still going down very very fast, where did that 1000 feet go? Not to mention the negative 'G' and the fact that both the engines would have been starved of oil and blown up.

I suspect that the Red Bull pilot will do it from a high rate of vertical climb or from climbing backwards flight. Good luck:ok:

Back to the flip, so to speak, I believe it was GW and others who started off doing a version of the manoeuvre to get from the high hover (NI Ops) down to low level quickly, a sort of 'over the shoulder' transition. Then it was a case of well if it will do that, will it do this? and the back flip was born.

sunnywa 2nd Aug 2008 15:40

During the Eurocopter Tiger visit to Australia in 98 or 99, the pilot flipped the Tiger in a backwards loop from the hover (kind of over the shoulder ) back to the hover from no more than 200ft ht. Very impressive.:ooh::ooh::ooh::ooh:
Then the tiger was crashed near Townsville a week or so later. :sad:

oldbeefer 2nd Aug 2008 19:55

More balls than I've got!

Mr_G_Box 8th Aug 2008 02:08

Back flip
 
It was down to Graham Waddington, who was being crewed by Ken Beveridge for the Eagles team of 1987 (although it might have been 86) I believe it started as an over the shoulder sort of thing and gradually became more and more upright until it was going straight over. Bit like being in a washing machine on the spin cycle as it goes around very quickly. Little finesse about it, cyclic 'yanked' back as far as it will go. Exciting though. Hi Diginagain, you well?

EESDL 8th Aug 2008 11:43

AB - have you sussed it yet - high-rate control inputs being applied at low loading in a back flip - whereas if you push cyclic forward from hover...........you do know what a cyclic is?

tongue out of cheek now

starflex fixer 9th Aug 2008 09:03

Old beefers balls!
 
I am sure you and I have done those sorts of things old beefer??

SFF

[email protected] 9th Aug 2008 10:36

Shhh Starflex - don't mention getting Pumas upside down;)

starflex fixer 9th Aug 2008 11:33

Never had the fortune of a ride in the queen of the skies with OB, would like to have though!!

If all else fails 11th Aug 2008 03:41

The 'over the shoulder' technique assuming a good rate of rearwards climb could actually result in little more than 50' height loss - just depended on the combination of aft and lateral cyclic (and rate of application). Technically then of course it was more a 'twist' than a back flip.

212man 11th Aug 2008 05:50


Then the tiger was crashed near Townsville a week or so later
Doing something totally unrelated - it was at low level on NVG and had an electrical failure.

Sid447 5th Sep 2008 12:23

Quote.
"...........G.W. told me back in May that he was the first person to carry out this maneuver.
He was not shooting the sh1t, but the tale came out as a follow up to the conversation we where having, we had not seen each other since we both served on the same Sqn 20 years before.
john........"

If he did it before 1982, then he may well have been the first.

erang5 9th Sep 2010 17:21

Helicopter loop
 
how do you loop a helicopter like the BO-105 redbull? at what air speed do you start pulling? colective settings during each segment?.....

roundwego 9th Sep 2010 17:43

Never mind a Bolkow - they are easy with their rigid heads and only weighing about 1.7tonnes. Have a look at the EC225 (circa 8tonnes) about 20 seconds into this clip



Spanish Waltzer 9th Sep 2010 18:49

You get a very good instructor to teach you in the aircraft rather than asking on here otherwise you will only try it once :(

Mungo5 9th Sep 2010 20:06

As SW said - don't try it on your own.

But, this may help Looping a Lynx - control inputs?

RMK 9th Sep 2010 20:57

OK now lesson #2, what are the inputs for the barrel roll? Of course for information purposes only; we all promise not to try it in a R22.

What Limits 10th Sep 2010 04:33

Lesson #3

Highly experienced helicopter aerobatic pilot doesn't get away with it this time



Anyone thinking of doing any of this, give your own head a shake!

whodictus 10th Sep 2010 07:49

Hi Guys
For some reason I had Mick Favinger in the frame for the flip :D

206Fan 10th Sep 2010 11:35


SixAxis 10th Sep 2010 15:34

First back flip...
 
Not that it helps the first date discussion, but in 1987 I flew the Lynx in all bar the last few displays of the season as got posted to UNFICYP and wasn't about to say no to that! However we only did the over the shoulder pull at that time, although it did get more pitchy and less roll as we got used to it...


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