cosmicray

Another perspective on what makes planes fly...

http://www.abc.net.au/science/articles/2015/11/17/4351644.htm

There is a good video on You Tube covering the first Black Buck mission.

https://www.youtube.com/watch?v=40knj0qg_Us

In the U.S. we have been told that the original rotors are no longer available. The new replacement rotors are too loose and are unacceptable. Is this a known problem and if so is there a known solution?

The following information came from a Yahoo Jabiru group some years ago. Don't know how relevant it is today or to your problem but it may help knowing some history.

Jaba Chat newsletter August 2001 first mentioned the epoxy and cotton flock

attachment of distributor rotors:

"Because of backlashing of gears, vibrations reflect back to the rotor causing a

slow wear of the rotor shaft and spring to distributor shaft. Inspection of

these is a must at least every 50 hours. Believe it or not, some 5 minute epoxy

araldite and flock applied to the inside of the rotor when assembled to the

distributor shaft will cause it to remain rock hard forever. To remove,

carefully pry off. A rotor which is moving inside supplying spark to the plugs

is not a good idea."

I suspect it has been mentioned since then too, but the info had not altered

it's basic idea.

"Cotton flock" is a fibre material, not a powder. Any good fiberglassing supply

should have some, but you probably have to buy a bag of it, which would last

456,765 rotors. But it should be inexpensive. It's used for all manner of

fiberglassing jobs - making strong fillets, joining parts in molds and so on.

Perhaps check the West System catalogue for it. I got mine (not West) 15+ years

ago, and still have the same bag of it.

The Sound Barrier for me. Great story, great acting and quite authentic. Directed by David Lean. It was the movie that explored control reversal approaching Mach 1. Some great shots of Spitfires and Vampires too.