The tumble explained, with applicable maths, by engineers

[Asterix]

To once and for all get the myths and the facts seperated: (If you are an engineer this might make VERY interesting reading - if not - you will still understand well enough:

http://www.hgfa.asn.au/resources/tumble1.pdf

[John Boucher]

Let's add this to the post... Just to demonstrate a "whip-stall"... the entry and the tumble and the result....


http://www.youtube.com/watch?v=U_vbrMUCuZE

Really a scary place to be!

[Asterix]

This clip is already famous as the only known one that illustrates what a tumble looks like. The problem is that there are four broad categories of conditions that can lead to it - the guy in this clip falls under the category of "pilot induced" - aka "Darwin's Law in Action". (trying to loop a trike and running out of inertia, LONG before he reaches the top of his loop, not having READ, HEARD, and UNDERSTOOD that a trike is NOT RATED for aerobatics. The problem is that "non-cowboys" may also fall victim in innocent flight. This is rare - but it can happen. Therefore - PEOPLE - READ THE PAPER!!"

(The guy in this particular clip died in the testosterone - fueled believe that his balls is bigger than nature - therefore Darwin's Law intervened and set him right... )

[Bundy]

Hi James,

I cant seem to open the above link...may just be my 1960's model PC though.

If it is indeed written by Engineers...there is 99% chance that I'll be completely confused by page 1

To add to this very valuable subject, here is another link to Jean d'Assenville's article on the same subject:

http://microlighters.co.za/download/fil ... d3ab520c25

The vector diagram's clearly explain the forces involved for dummies like me.

[jtresfon]

Thanks guys, some great articles that give a clearer understanding especially to us non-trike pilots out there...

Rgds
Jean.