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Chat => Chit Chat => Topic started by: tickmike on September 03, 2013, 11:10:17 PM

Title: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: tickmike on September 03, 2013, 11:10:17 PM
A380 Blade Off Test     http://www.youtube.com/watch?v=j973645y5AA
With my late father working for RR I have known about these sort of test but this is the first I have seen of a RR test at Hucknell .
Enjoy.  :)
The other video's in the A380 series seem interesting.  ;)
Title: Re: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: burakkucat on September 03, 2013, 11:45:15 PM
Interesting to watch.  :)

Thank you for posting the link.
Title: Re: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: tickmike on September 04, 2013, 12:22:25 AM
Quote from: burakkucat on September 03, 2013, 11:45:15 PM
Interesting to watch.  :)

Thank you for posting the link.

Your welcome But !!!!!!!!

OMG I've just been watching this    http://www.youtube.com/watch?v=iWi_Ilg_fEY   where the engine explodes and nearly brings the plane down.
Just shows how much you can test something but there is always an unknown factor.
Title: Re: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: silversurfer44 on September 04, 2013, 09:29:15 AM
Very interesting. Thanks Tickmike.
Title: Re: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: c6em on September 04, 2013, 10:18:32 AM
$2 billion gone in a few seconds
http://www.youtube.com/watch?v=go2Ntc9tqZ8 (http://www.youtube.com/watch?v=go2Ntc9tqZ8)

As I recall a faulty air mass sensor which had got moisture into it caused an incorrect decision within the software controlling the flyby wire plane leading it to pitching up sharply at takeoff leading on to a departure stall where the a/c appears to take off properely and when it climbs out of "ground effect" it stalls.

$2bn is the total cost of the entire program averaged out across each of the (few) aircraft that were eventually built to get a cost/aircraft.
Title: Re: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: kitz on September 05, 2013, 01:22:55 AM
ouch...  to both videos!   Thank you for sharing
Title: Re: £9 Million Gone In A few Seconds... A380 Blade Off Test ..
Post by: Berrick on September 05, 2013, 08:54:49 AM
Quote
Just shows how much you can test something but there is always an unknown factor

How very true.

It's interesting to to watch these videos BUT bear this in mind if you watch both.

The RR blade off test (like other aero engine manufactures) are testing for the failure and containment of fan blades on the air intake, why? because of bird strikes and bird strikes are common.

If you watch the second video about the Qantus flight (thank god no one died) you can see that part of the failed engine is perfectly in-tacked, it was an intermediate pressure turbine disc with much smaller blades which suffered an un contained failure.

I wonder if they test for these?? I guessing not  ???