Search found 661 matches

by mtskull
Tue Apr 06, 2010 11:50 pm
Forum: Bluebird Rebuild
Topic: The Last run....
Replies: 175
Views: 110663

Re: The Last run....

the engine would have spooled down uncommandedly as the engine-driven piston pump cavitated causing a loss of thrust and the aerodynamic centre of pressure to move aft along the underside rather quickly. The engine driven pump of a turbine engine doesn't depend on the booster pump(s) for the engine...
by mtskull
Mon Apr 05, 2010 12:38 pm
Forum: Bluebird Rebuild
Topic: The Last run....
Replies: 175
Views: 110663

Re: The Last run....

Wow, that was quick!

-Thanks Bill, that is all fascinating stuff, and food for thought.
by mtskull
Mon Apr 05, 2010 12:02 pm
Forum: Bluebird Rebuild
Topic: The Last run....
Replies: 175
Views: 110663

Re: The Last run....

Going back to the statement re. the snapped forward engine mounting, whilst accepting that you have ascertained for certain that it broke in tension, can you be 100% sure that this couldn't have happened during the accident? -I would have thought that, given the manner in which the aft part of Blueb...
by mtskull
Tue Mar 30, 2010 6:13 pm
Forum: Bluebird Rebuild
Topic: The Last run....
Replies: 175
Views: 110663

Re: The Last run....

Hopefully there might be an engineering/mathematical wizard watching this forum who can do a swift analysis of the rotating mass v. RPM of the Orpheus, then weigh in and tell us whether the gyroscopic effect was likely to have been significant. -On second thoughts, I'm in a hotel in Toulouse that is...
by mtskull
Tue Mar 30, 2010 12:30 pm
Forum: Bluebird Rebuild
Topic: The Last run....
Replies: 175
Views: 110663

Re: The Last run....

Turning left is using gyroscopic precession to pick up a sponson and unstick it. The only way I could see the brake helping to lift the back of the boat is if were to behave in the same way as a hydrodynamic device called an interceptor. It's basically a surface that sticks vertically down into the...
by mtskull
Fri Mar 26, 2010 1:47 pm
Forum: Bluebird Rebuild
Topic: Pic of the Day
Replies: 2374
Views: 1429103

Re: Pic of the Day

Renegadenemo wrote:
2 Beryl's and two Orpheus' (Orphei?)
Orpheuses (Orpheus' would be the posessive plural) - it's Greek. Were it Latin it would be Orphei. Like Octopuses, Octo is Latin but 'pus' is Greek for foot it would be 'pod' in Latin.
You are clearly a cunning linguist.... :lol:
by mtskull
Wed Mar 24, 2010 6:28 pm
Forum: Bluebird Rebuild
Topic: Pic of the Day
Replies: 2374
Views: 1429103

Re: Pic of the Day

[quote="Renegadenemo"][quote] No idea how many engines have been in there As a starting suggestion, how about: 1) Original Beryl from the cancelled Saro SR.A/1 flying boat fighter 2) Replacement Beryl (from same source?) after Lake Mead sinking 3) Orpheus from Gnat XM691 4) Replacement Orpheus follo...
by mtskull
Tue Mar 23, 2010 9:57 pm
Forum: Bluebird Rebuild
Topic: Dead Metal
Replies: 109
Views: 89607

Re: Dead Metal

We have no way of knowing how much better future generations may be at gleaning information from old artifacts or what technology may one day exist to enable them to do so; That's absurd- with that approach we'd do nothing, to anything, ever. 'Just in case'. No, all that is necessary is to strike t...
by mtskull
Tue Mar 23, 2010 7:48 pm
Forum: Bluebird Rebuild
Topic: Dead Metal
Replies: 109
Views: 89607

Re: Dead Metal

Preservation can mean many things but sometimes it just means saving something for later. So just when is this 'later' that things are 'saved' for, then..? :? I feel as though I'm playing Devil's advocate, but here goes: Who can say when that "later" is? Maybe when (to paraphrase Bill's words from ...
by mtskull
Tue Mar 23, 2010 1:25 pm
Forum: Bluebird Rebuild
Topic: Dead Metal
Replies: 109
Views: 89607

Re: Dead Metal

Most people knew at the time and everybody knows now that the museological community got it wrong about Bluebird. However, just as they were wrong in applying mainstream museological thinking to Bluebird, might it not follow that it is equally wrong to assume that what is appropriate to Bluebird app...