For a host of reasons screens don't suffice when flying and can't protect against strike, but large bulbous ones are used in ground testing. Below is the Rolls Royce one:
Brexit, for once some facts.
- Thread starter flecc
- Start date
We nicked the principal off Farnborough. Our birds were placed in a sabot which was arrested at the end of the barrel, leaving the bird to continue into the engine. The sabots had a collapsible base which reduced the acceleration forces on the duckling and prevented them being crushed.
That is a screen for noise testing on number 11 test bed at Rolls Royce Hucknall. The whole engine stand lifts and turns to face into wind. I worked on the design of the turning mechanism as a fresh graduate in the 1980s.For a host of reasons screens don't suffice when flying and can't protect against strike, but large bulbous ones are used in ground testing. Below is the Rolls Royce one:
The screen isn’t intended for flight. It’s purely to screen out fan noise so that other noise output can be isolated and measured.
You laugh but I’m sure I remember reading frozen turkeys have been used for testing such matters.
They were never frozen. Killed and fired before rigorous mortice set in. Less damage caused when they are soft and subtle.
Rolls Royce never used chickens during my time there. The task was to give the engine the easiest test conditions possible within the rules. Even with 8 x soft ducklings, power output post bird strike was close to the minimum permissible. Chickens, especially frozen ones would have caused the test outcome to be a failure.
We did some work for British Rail who had their research centre in Derby. We fired gelatine at cabs and fairings for them to simulate various animals being struck.
I actually imagined five fairly substantial flightless birds - like cassowaries or ostriches. Then I wondered how the birds would ever meet the aircraft at all.
They don't necessarily hit the engines. There was a clip on television earlier, I think it was this one:
https://petapixel.com/2018/10/08/this-is-what-a-drone-strike-would-do-to-an-airplane/
Could cause quite a lot of damage.
That "test" was significantly discredited.
In an open letter addressed to lead researcher Kevin Poormon, DJI VP of Policy & Legal Affairs Brendan M. Schulman argues that the simulated drone strike performed was “staged” to “create a scenario inconceivable in real life.”
“Your video assumes a Mooney M20 light aircraft is flying at its maximum possible speed of 200 mph, and encounters a drone apparently flying faster than its maximum possible speed of 33.5 mph,” Schulman writes. “The plane could only achieve such speed at full cruise, typically more than a mile above ground.
“At the altitudes where that plane would conceivably encounter a Phantom drone, it would fly less than half as fast — generating less than one-fourth of the collision energy.”
And we know why too , vote leave ran an immense targeted advertisement campaign in the final days using stolen data that skewed the result using illegal funding.
This should have nullified the whole thing
Better idea, we give Northern Ireland to the South, as there appears to be a majority that want that in the province.Ah Ha, i think i`ve found the solution!
disclaimer: i`m just the Messenger here
@[B]ConfirmedBot564[/B] 21m21 minutes ago
Replying to @[B]irishexaminer[/B]
UK should take the rest of Ireland and move the current inhabitants to Canada and continental Europe.
Ireland belongs to the UK.
Sorted!!!
This is the real nature of the so wonderful JCB company, dodgy business practices..
Look at it from the viewpoint of a leave voter who wants this problem to go away.
How would it seem to them?
Interesting notion that Northern Ireland somehow has the right to eternal attachment to the mainland?
What happened to our right to decide we don't want them?
We aren't "theirs" to be told what we can and can't do are we?
So let me see, does that infer we are subject to the will of Northern Ireland? and not a Sovereign nation with the right to determine who we associate with?
So the tail wags the dog?
This is fun, all nonsense, but really quite mad.
What I am trying to illustrate is how this will appear to a died in the wool leave supporter who regards the Northern Ireland question as a "nuisance" to achieving Brexit.
Personally I'm happy to accept the rights of the population in the province, but there are other people who may well view the matter differently.
And if by any chance Corbyn becomes PM one of his first acts would very likely be to give Northern Ireland a referendum on his cherished reunification notion.
And that would be the end of Tommie's little empire!
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Yup - that's how it works. And we sell stuff we're good at doing - and leave what does not make a profit to people who CAN make a profit doing that. This is the global capitalism that has dragged us screaming and kicking to where we are now.