Another great escape for Valley Hawk crew!
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Another great escape for Valley Hawk crew!
BBC News - Hawk jet makes emergency landing at RAF Shawbury
Said to be XX303, a Hawk T1 from 208 Sqn.
That's two successful emergency landings in a month, both of which ended up in the grass beyond the end of the runway
Said to be XX303, a Hawk T1 from 208 Sqn.
That's two successful emergency landings in a month, both of which ended up in the grass beyond the end of the runway
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Quick question why is the ac sat on it's rear in the first photo.
In other words, the barrier is pulling the Hawk onto its backside.
Last edited by The Helpful Stacker; 9th Oct 2013 at 14:06.
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The Helpful Stacker,
Reckon you're right. There'd be a certain amount of elasticity in the barrier cables, the aircraft would be pulled back onto its #rse, which dug the tailpipe in to the soft ground (look at the wheels).
Which runway would he be on ? I only ask, because when I was there in the mid '60s, one of Marshall's pilots was bringing a Vampire in on the short (23?) runway (must have been half a gale blowing). Anyway, a chap hoeing his turnips in the adjoining field was getting hacked-off with things buzzing in over his head and chucked his hoe at the Vampire. Damn near hit it, too !
Couldn't be any relation of the eyewitness, by any chance ?
D.
Reckon you're right. There'd be a certain amount of elasticity in the barrier cables, the aircraft would be pulled back onto its #rse, which dug the tailpipe in to the soft ground (look at the wheels).
Which runway would he be on ? I only ask, because when I was there in the mid '60s, one of Marshall's pilots was bringing a Vampire in on the short (23?) runway (must have been half a gale blowing). Anyway, a chap hoeing his turnips in the adjoining field was getting hacked-off with things buzzing in over his head and chucked his hoe at the Vampire. Damn near hit it, too !
Couldn't be any relation of the eyewitness, by any chance ?
D.
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Southerly main runway, ended up just behind the RAPRA factory, or whatever it is called these days. There isnt a lot of choice of decent runways in that part of the world.
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You are basically correct.
When an aircraft engages a Barrier firstly a shear pin or similar will shear allowing the top of the net to break away from the stanchion. Tie downs (securing the net to the runway) will also break away from the bottom of the net. The bottom of the net is attached by cables or tapes to the Energy Absorbing Unit (EAU) which will pay out gradually bringing the Aircraft to a halt. As can be seen there is still tension on the net which is what has stood the Hawk on it's tail. Once the brake pressure in the EAU has been released as can be seen in the later pictures the Aircraft is back on 3 wheels. Looking at another picture it could also have used the maximum runout available (note proximity of fence and ditch) which will also have the same effect. I should add that when a Barrier Net or Arresting Cable is under tension like that you never ever go inside the Vee that is formed by the cables and the Aircraft as if something gives way you stand a good chance of losing your head!
You are basically correct.
When an aircraft engages a Barrier firstly a shear pin or similar will shear allowing the top of the net to break away from the stanchion. Tie downs (securing the net to the runway) will also break away from the bottom of the net. The bottom of the net is attached by cables or tapes to the Energy Absorbing Unit (EAU) which will pay out gradually bringing the Aircraft to a halt. As can be seen there is still tension on the net which is what has stood the Hawk on it's tail. Once the brake pressure in the EAU has been released as can be seen in the later pictures the Aircraft is back on 3 wheels. Looking at another picture it could also have used the maximum runout available (note proximity of fence and ditch) which will also have the same effect. I should add that when a Barrier Net or Arresting Cable is under tension like that you never ever go inside the Vee that is formed by the cables and the Aircraft as if something gives way you stand a good chance of losing your head!
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Heard part of the mayday call whilst crewing in for my flight on Tuesday morning. Called as an engine failure by the flight lead, who sounded remarkably calm under the circumstances. Not sure exactly where they were at the time, but lead asked for the wx at Shawbury, so presumaby they were at either med or hi level transit within gliding distance. Overrun barrier engagement would suggest engine out or no hydraulic landing with no brakes, and no chute on a Hawk.
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Quick question why is the ac sat on it's rear in the first photo.
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I'd argue that given that the RAT had clearly been deployed before landing, it was actually quite a reliable means of diagnosis, to a certain extent at least...
-RP
-RP
But we can't tell whether it was deployed prior to touchdown.
When the engine was shutdown, during or after barrier engagement, the RAT would have deployed. So it is not possible to determine whether it was out before touchdown.
When the engine was shutdown, during or after barrier engagement, the RAT would have deployed. So it is not possible to determine whether it was out before touchdown.
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Background Noise, am i misunderstanding this? You're saying that the Hawk's RAT is deployed everytime the engine is shut down, even during normal ops? I've never noticed that before...
-RP
-RP
Another great escape for Valley Hawk crew!
RP.
That is correct. As the engine RPM decreases, the hydraulic pressure decreases and the RAT deploys. Without forward airspeed the RAT will re-stow itself as the pressure drops further. I forget the exact pressures for the T1 now. I've flown two other marks since then and old age is kicking in.
BV
That is correct. As the engine RPM decreases, the hydraulic pressure decreases and the RAT deploys. Without forward airspeed the RAT will re-stow itself as the pressure drops further. I forget the exact pressures for the T1 now. I've flown two other marks since then and old age is kicking in.
BV
