Auster Aiglet down near Bicester
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Auster Aiglet down near Bicester
An Auster Aiglet has crashed with severe injuries to the pilot on Sunday.
BBC NEWS | UK | England | Aircraft crash caught on camera
Fortunately the pilot's condition is described as "stable"
Judging by the eye witness account that she heard a "swoosh" I would assume that the engine had stopped given that the sound generated by a Gipsy engine is a bit louder than that.
Edited to remove non-funtional link!
BBC NEWS | UK | England | Aircraft crash caught on camera
Fortunately the pilot's condition is described as "stable"
Judging by the eye witness account that she heard a "swoosh" I would assume that the engine had stopped given that the sound generated by a Gipsy engine is a bit louder than that.
Edited to remove non-funtional link!
Last edited by LowNSlow; 22nd Sep 2009 at 09:12.
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Thread evaporation
There was a thread started on here on the day of the incident, but it strangely seems to have evaporated.
As it happens, I drove past the site 10 or 15 minutes after the event and the fire service were in attendance and there was a blue and yellow helicopter overhead. Weather was nil wind, mist with some thicker patches and very humid. I imagine the pilot was hoping to make Bicester which is only a short distance away, but the lorry park has a line of trees around one edge.
Thankfully, all on board survived.
As it happens, I drove past the site 10 or 15 minutes after the event and the fire service were in attendance and there was a blue and yellow helicopter overhead. Weather was nil wind, mist with some thicker patches and very humid. I imagine the pilot was hoping to make Bicester which is only a short distance away, but the lorry park has a line of trees around one edge.
Thankfully, all on board survived.
Spoon PPRuNerist & Mad Inistrator
There was a thread started on here on the day of the incident, but it strangely seems to have evaporated.
SD
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Remember seeing the aeroplane at the College of Aeronautics in '69 then Duck End farm in '74.
Seems sad after so many years flying safely.
Mods remove if this isn't suitable but firends on the airfield think it was not engine but lack of TORA that was an issue
Seems sad after so many years flying safely.
Mods remove if this isn't suitable but firends on the airfield think it was not engine but lack of TORA that was an issue
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Bad luck to hit a skip
From the CCTV pictures it seems the plane was making some sort of crash landing into the trees. The pilot might not have suffered such severe injuries had it not then hit a skip. Very bad luck to go for the trees when all else fails and then find a solid metal object hidden there.
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I don't usually question the wisdom and knowledge of AAIB investigators (of whom I have the greatest respect) but I'm curious as to the inference that it may have been due to "High density altitude". If the air is highly dense then wouldn't this facilitate an improved climb rate whereas the accident related to a poor climb rate? This would suggest that the air was 'thinner' than normal, i.e. would be a lower pressure/density than normal? Thinking about it, shouldn't it be described as a "High altitude density" (i.e. lower air pressure, leading to an effect similar to taking off from a higher altitude airfield). Overall though, I'd be worried about flying in anything whose performance is potentially affected by a height difference of only a thousand feet or so.
You're correct with the theory, but not with the terminology.
"High" refers to the equivalent ISA altitude, rather than the actual air density - i.e. "High D.A." = "Low air density".
See here: Density Altitude
"High" refers to the equivalent ISA altitude, rather than the actual air density - i.e. "High D.A." = "Low air density".
See here: Density Altitude
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Well I suppose the point of the AAIB reports is that we learn from them and don't repeat the same mistakes.
I for one would never have considered that DA would be a factor when flying in the UK as I wouldn't have thought the temperature got high enough. In California (where I learnt) yes, Oxfordshire no.
I for one would never have considered that DA would be a factor when flying in the UK as I wouldn't have thought the temperature got high enough. In California (where I learnt) yes, Oxfordshire no.
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And don't forget that 'density altitude' can be increased by more than ground altitude. 
Increase the temperature significantly, and your 'density altitude' climbs significantly too.
Increase the temperature significantly, and your 'density altitude' climbs significantly too.
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As an ex Aiglet owner I think the density thing is a bit of a red herring.
Having flown in much worse conditions than those described, I am amazed that it didn't get off.
Maybe the fact that he was over " pinning it on " was more of a factor.
Having flown in much worse conditions than those described, I am amazed that it didn't get off.
Maybe the fact that he was over " pinning it on " was more of a factor.
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Just for the record Steve ( not sure if you know) the aiglet trainer has clipped wings so less area. It would be more susceptible to" hot and high" but even so...
I've had two of them. Ranold Porteuas developed the Porteus ( not sure of spelling) loop in one. His displays were legendary.
I've had two of them. Ranold Porteuas developed the Porteus ( not sure of spelling) loop in one. His displays were legendary.