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malc.stewart(at)btinterne
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 Posted: Sat Feb 03, 2007 1:31 am Post subject: Allegro incident 2005Allegro incident 2005 |
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Hello Thom
Thanks to your Email, I looked again at the NTSB site and I am not sure if I missed it the first time or if has only just been added as the date says 01.31.2007, but there is now a report on the reason for the accident which states inadvertently stalling the aircraft was the probable cause.
Although very tragic for the pilot and passenger who died in the accident and in particular their families, I guess it is reassuring for the Allegro community to know that it is was not a problem with the aircraft itself
Malcolm in England
[quote][b]
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Thom Riddle
Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)
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| Posted: Sun Feb 04, 2007 5:18 am Post subject: Allegro incident 2005Allegro incident 2005 |
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Malcom,
Apparently, the Probable Cause finding was posted very recently because
it was not there when I looked after you brought up the question. In my
experience, there are no inherent design problems in the Allegro that
would necessarily lead to mystery crashes. Spin training is no longer
required in the USA. Is it in England?
I've been in one inadvertent spin in our Allegro. I was trying to climb
up through a rather small hole in the broken overhead cloud deck to fly
over a Class C airspace instead of through it. The hole was so small
all my attention was outside the cockpit in order to avoid the clouds.
The result was that I was not paying close attention to the airspeed.
It stalled and entered a spin from which I recovered in less than one
complete turn. Since I had spin training back in the old days, it was a
non-event for me. But it proved to me that even with the quite loud
stall warning system in the Allegro, one has to pay attention to notice
it when you are distracted. The moral of course is never let yourself
be distracted from airspeed monitoring when close to the ground.
I hope the weather there in Mid-England is better than here today. 3F
this morning with a wind chill of -16F but bright and sunny. Last
night the Buffalo-Niagara Falls International Airport (KBUF) was
zero/zero for awhile with winds gusting to 40 knots.
Thom in Buffalo
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Thom Riddle
Buffalo, NY (9G0)
Don't worry about old age... it doesn't last very long.
- Anonymous |
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malc.stewart(at)btinterne
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| Posted: Mon Feb 05, 2007 2:09 am Post subject: Allegro incident 2005Allegro incident 2005 |
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Hello Thom
It is the same in the UK. Spin training is no longer part of the syllabus but used to be and some of the “old school” instructors will demonstrate a spin as they believe rather than just go to the incipient stage that a full spin should ensure that most pilots will not want to go there or at least if they know what to expect if they fly too slowly and out of balance. Glad to hear the Allegro recovered within 1 turn. What input did you need, just forward stick pressure or also opposite rudder and did you get close to Vne during the recovery?
Aircraft spin testing is compulsory as part of the approval process in the UK and I will let you know the official comments from the test pilot on the Allegro spin behaviour, when that part of the flight testing comes up.
Here in central England it has been perfect flying weather for the weekend with clear skies, little wind, good visibility and 50 deg F ! - Not usual for this time of year
Malcolm in England
[quote][b]
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Thom Riddle
Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)
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| Posted: Tue Feb 06, 2007 6:52 am Post subject: Allegro incident 2005Allegro incident 2005 |
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Malcom,
I reduced power, neutralized aileron and elevator, applied opposite
rudder and it was over. The airspeed never got above 90 mph. It
recovers very quickly with the proper control inputs. Here is a link to
a video that demonstrates spin recovery. Good training video.
http://www.apstraining.com/clips/aggravatedspin_wmv_hispeed.wmv
Thom in Buffalo
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Thom Riddle
Buffalo, NY (9G0)
Don't worry about old age... it doesn't last very long.
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