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RAF Typhoon With Ash Problems.  
User currently offlineoly720man From United Kingdom, joined May 2004, 6814 posts, RR: 11
Posted (4 years 6 months 5 days 21 hours ago) and read 5245 times:

Interesting news.

http://news.bbc.co.uk/1/hi/uk/8637978.stm

Training flights on RAF Typhoons in Lincolnshire have been suspended after ash deposits were found in one aircraft's engines.

The fleet is being checked at its base in Coningsby, Lincolnshire.



wheat and dairy can screw up your brain
6 replies: All unread, jump to last
 
User currently offlineKC135TopBoom From United States of America, joined Jan 2005, 12158 posts, RR: 51
Reply 1, posted (4 years 6 months 4 days 18 hours ago) and read 4718 times:

Volcanic ash and jet engines just don't mix well. Bad things can likely happen to the motors. That can ruin your day.

User currently offlineTGIF From Sweden, joined Apr 2008, 276 posts, RR: 0
Reply 2, posted (4 years 6 months 4 days 6 hours ago) and read 4535 times:

The Finnish air force has also found ash in the engines of 5 of its Hornets. It really surprises me that the air forces aren't more careful with its expensive equipment since it is, as KC135 says, a well known fact that aircraft in general and jet engines in particular don't get along with volcanic ash.

User currently onlineMD11Engineer From Azerbaijan, joined Oct 2003, 14078 posts, RR: 62
Reply 3, posted (4 years 6 months 4 days 5 hours ago) and read 4490 times:

Also military low bypass engines are more sensitive to volcanic ash than commercial high bypass engines. The reason is that the fan and spinner on the high bypass engines act like a centrifuge to push the heavier dust particles into the bypass stream where they can´t cause much damage (they are from house designed to do this e.g. with rain droplets, hail graikns and snow flakes). On military engines much more goes stright into the primary airflow.

Jan


User currently offlineopso1 From United Kingdom, joined Jun 2005, 527 posts, RR: 1
Reply 4, posted (4 years 5 months 4 weeks 1 day 5 hours ago) and read 3914 times:

There has been (not very much) media coverage about the suspension of training flights on RAF Typhoons in Lincolnshire with claims that ash deposits were found in the engines of four aircraft, but the Royal Air Force wanted to raise the Typhoon's profile again so posted this on their official website on 23rd April...

"RAF engineers have confirmed there has been no damage to any of the Typhoon aircraft or engines following precautionary investigation of volcanic ash deposits. This is because there were no airshows or flypasts taking place at the time of the volcanic eruptions.

Typhoon flying at RAF Coningsby recommenced at 0800hrs this morning following the checks, where they continued practising doing fast flypasts and loops.

The Typhoon is presently of little operational use, and has been deployed on quick alert to be rapidly launched to react to air defence threats by aggressive looping and 'mean looking flypasts'.

Luckily there was no call for this during the volcanic ash threat, as it would have cost defence £7.6bn to replace Tranche 1,2 and 3 and fund an uplift of OF4, 5 and 6 officers to staff the replacements.

The Typhoon was deemed totally inadequate to replace the Harrier in theatre in 2009, as Service Chiefs were forced to choose the Tornado instead. It was decided that 'a very agressive loop' was not enough firepower to deny the Taliban and protect coalition forces.

Typhoon (or Eurofighter) crews have been practising a 'death-barrel roll' and 'really nasty half-cuban' followed by a 'eye-watering quarter clover' to see if they can get in on the operational action, however they have not been cleared for 'the very, very bad wingover' as when this was practised it resulted in a near crash by the highly trained pilot and the Station Commander wetting himself".


User currently onlinepar13del From Bahamas, joined Dec 2005, 7381 posts, RR: 8
Reply 5, posted (4 years 5 months 4 weeks 1 day 2 hours ago) and read 3819 times:

Quoting opso1 (Reply 4):
Typhoon (or Eurofighter) crews have been practising a 'death-barrel roll' and 'really nasty half-cuban' followed by a 'eye-watering quarter clover' to see if they can get in on the operational action, however they have not been cleared for 'the very, very bad wingover' as when this was practised it resulted in a near crash by the highly trained pilot and the Station Commander wetting himself".

I take it that these are manuevers to put bombs or rockets on target?

Quoting opso1 (Reply 4):
The Typhoon is presently of little operational use, and has been deployed on quick alert to be rapidly launched to react to air defence threats by aggressive looping and 'mean looking flypasts'.

Is this one related to being cleared to launch any of the RAF's current air to air missiles, could they simply load them for show? If truly needed I'm sure they could be cleared in a hearbeat, just goes to show how much money is now involved in getting basic things done by using procedures and paperwork.


User currently offlineBongodog1964 From United Kingdom, joined Oct 2006, 3638 posts, RR: 3
Reply 6, posted (4 years 5 months 4 weeks 4 hours ago) and read 3459 times:

Quoting par13del (Reply 5):
Quoting opso1 (Reply 4):
The Typhoon is presently of little operational use, and has been deployed on quick alert to be rapidly launched to react to air defence threats by aggressive looping and 'mean looking flypasts'.

Is this one related to being cleared to launch any of the RAF's current air to air missiles, could they simply load them for show? If truly needed I'm sure they could be cleared in a hearbeat, just goes to show how much money is now involved in getting basic things done by using procedures and paperwork.

I think this is the truth behind it all. The procedures to authorise general release of weapons is very long and drawn out.If however there was an emergency the rule book would be swiftly consigned to the bin, as it was for both the Falklands and the 1st Gulf war, where new weapons were installed and integrated into the aircraft systems in a matter of weeks or even days.


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