HS 125 Maintenance Stall Check Question
05-14-2011, 08:19 PM
#1
Gets Weekends Off
Thread Starter
Joined APC: Jun 2008
Position: Seat 1 A
Posts: 195
HS 125 Maintenance Stall Check Question
Hi everyone,
I will be flying with someone doing a maintenance stall check on a 800XP. The guy I'm flying with is experienced in doing these maintenance checks and I was curious and like to prepare for this before I meet him. Has anyone ever done a stall check in a HS 125 and like to share with me what I should expect? I appreciate your feedback and any help. Thanks
I will be flying with someone doing a maintenance stall check on a 800XP. The guy I'm flying with is experienced in doing these maintenance checks and I was curious and like to prepare for this before I meet him. Has anyone ever done a stall check in a HS 125 and like to share with me what I should expect? I appreciate your feedback and any help. Thanks
05-14-2011, 08:41 PM
#2
Gets Weekends Off
Joined APC: Apr 2006
Position: Sofa Stress Tester
Posts: 614
Hey Hoof:
Done it before, really a non-event. Just follow the recommended criteria for conducting stalls. I.E. 10,000 ft AGL, not to exceed 15,000 MSL? There is a graph in the AFM that will give you the shaker activation speeds for given weights. Best to chart those numbers for all the flap settings. At flaps 45 the A/C really doesn't want to get slow enough for shaker, but kinda "mushes" along.
When I did it, I was checking for the correct shaker speeds, and also flight characteristics. You didn't what the aircraft to stall before shaker, or break to one side.
P.S. Now that I think about it. We did it to the actual stall. The graph should give you both shaker activation speeds, and stall speeds or weight.
Done it before, really a non-event. Just follow the recommended criteria for conducting stalls. I.E. 10,000 ft AGL, not to exceed 15,000 MSL? There is a graph in the AFM that will give you the shaker activation speeds for given weights. Best to chart those numbers for all the flap settings. At flaps 45 the A/C really doesn't want to get slow enough for shaker, but kinda "mushes" along.
When I did it, I was checking for the correct shaker speeds, and also flight characteristics. You didn't what the aircraft to stall before shaker, or break to one side.
P.S. Now that I think about it. We did it to the actual stall. The graph should give you both shaker activation speeds, and stall speeds or weight.
05-15-2011, 05:24 AM
#4
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Joined APC: Jan 2010
Position: Captian, G450, G550 (Ret.)
Posts: 165
Originally Posted by Hoof Hearted
Hi everyone,
I will be flying with someone doing a maintenance stall check on a 800XP. The guy I'm flying with is experienced in doing these maintenance checks and I was curious and like to prepare for this before I meet him. Has anyone ever done a stall check in a HS 125 and like to share with me what I should expect? I appreciate your feedback and any help. Thanks
I will be flying with someone doing a maintenance stall check on a 800XP. The guy I'm flying with is experienced in doing these maintenance checks and I was curious and like to prepare for this before I meet him. Has anyone ever done a stall check in a HS 125 and like to share with me what I should expect? I appreciate your feedback and any help. Thanks
05-19-2011, 01:08 PM
#6
New Hire
Joined APC: Aug 2008
Position: Chief Pilot
Posts: 9
HS 125 Stall Checks
Having done many series of stall checks on Hawkers (we fly an 800XP), I have found that the plane is pretty straightforward in its stall characteristics. There is quite a fear factor out there regarding Hawker stalls, and it is pretty much unfounded. The crash that did happen involved many more mistakes that led up to the incident. If you fly the plane within it's parameters, there is nothing big about doing them. After all, we're not sleeping up there, are we?
05-20-2011, 04:57 AM
#7
On Reserve
Joined APC: May 2011
Posts: 10
We have done a couple of them with no events but one the yoke snapped out of pilots hands and we rolled over. Also we do a lot of work with Duncan Aviation and they will not send any personal on stall test any more because of a couple close calls. All i can say is don't take these tests lightly.
05-20-2011, 05:46 AM
#8
Gets Weekends Off
Joined APC: May 2010
Position: Not on this message board.
Posts: 159
Just curious....
what maintenance checks need to be done with the aircraft in full stall on a Hawker?
Any plane I have flown with a stick shaker/pusher or any other stall warning devices, you test them on the ground.
what maintenance checks need to be done with the aircraft in full stall on a Hawker?
Any plane I have flown with a stick shaker/pusher or any other stall warning devices, you test them on the ground.
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