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Forum: Rumours & News

12th Jul 2013, 16:30

Replies: 2,403

Asiana flight crash at San Francisco

Views: 2,198,102

Posted By DaveKnell

Slightly out of the general flow, but I found...

Slightly out of the general flow, but I found this interesting - it's a Korean's view of Malcolm Gladwell's view of Koreans. Indirectly linked (i.e. you'll need to click through to the main article...

Forum: Rotorheads

1st Nov 2012, 15:23

Replies: 37

Shared Ownership - Help!!

Views: 5,848

Posted By DaveKnell

If anyone knows of (or is interested in helping...

If anyone knows of (or is interested in helping to start) a helicopter group in or around Cambridge, then I'd love to know!

--Dave

Forum: Rotorheads

10th Mar 2012, 22:55

Replies: 23

Need advice (PPL training)

Views: 3,526

Posted By DaveKnell

Judging from the price and location, you're...

Judging from the price and location, you're looking at Jerry Trimble's operation in McMinnville, Oregon. I got my PPL there (after a false start somewhere else) and I would recommend them to anyone...

Forum: Rotorheads

8th Feb 2012, 01:43

Replies: 85

FAA licenses?

Views: 15,910

Posted By DaveKnell

Back (bloody ages) to the visa thing - you only...

Back (bloody ages) to the visa thing - you only need a Mx visa if you're studying more than 20-odd hours per week. I got my PPL(H) perfectly happily and legally on tourist visas - there is, of...

Forum: Rotorheads

10th Apr 2011, 14:52

Replies: 23

Is the theory of Autorotation,driving-driven region outdated?

Views: 5,837

Posted By DaveKnell

So.. Griff - I have two books with two...

So..

Griff - I have two books with two contradictory answers, so I figured that there was at least some rumour involved here ;-)

Rotorfossil says that the boundary stays roughly put. Flyting...

Forum: Rotorheads

10th Apr 2011, 02:39

Replies: 23

Is the theory of Autorotation,driving-driven region outdated?

Views: 5,837

Posted By DaveKnell

Aerodynamics in autorotation

Quick question, if I may. Consider a helicopter in autorotation; as we should all know, each rotor blade has, as we come away from the mast, a stalled region, a driving region and a driven region.
...

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