Go Back  Airline Pilot Central Forums > Airline Pilot Forums > Corporate
Hawker 800XP Stick Shaker test in Flight >

Hawker 800XP Stick Shaker test in Flight

Notices
Corporate Corporate operators

Hawker 800XP Stick Shaker test in Flight

Old 12-01-2009, 07:48 AM
  #1  
New Hire
Thread Starter
 
flyinglion's Avatar
 
Joined APC: Dec 2009
Posts: 1
Exclamation Hawker 800XP Stick Shaker test in Flight

Hi everyone,
I am interested on knowing if anyone has ever done a flight test on the Hawker 800 series after a 48 Months maintenance inspection which includes a stick shaker test in flight. Has anyone ever encounter any adverse flight conditions while doing the same Stick Shaker test on any other Jet?
Thanks.
flyinglion is offline  
Old 12-01-2009, 01:32 PM
  #2  
Line Holder
 
Joined APC: Feb 2008
Posts: 89
Default

You are talking about the test anytime the leading edges are removed?
I've done quite a few on both 800's and 700's and 1A's.
Follow the maintenance manual to the letter. Do NOT do like Ratheon and lead up to this test with A/P on and check that it pops off when stick shaker activates.
The successfull parameters of this test are fairly vague, If you end up right side up it seems they consider it OK.
Make sure there is no ice on the leading edge (avoid clouds, day,VFR) allow no one in the back, and it wouldn't hurt to make sure the toilet is empty.
After all these cautions, MOST of these were pretty benign.
We only had one 700 that would roll 90 degrees + to the right every time,
got your full attention the first time, then you knew what to expect.
Dave

Last edited by grimmdj; 12-01-2009 at 01:34 PM. Reason: Additions
grimmdj is offline  
Old 12-01-2009, 02:06 PM
  #3  
Gets Weekends Off
 
detpilot's Avatar
 
Joined APC: Oct 2005
Position: Trying not to crash
Posts: 1,260
Default

Now, by no means do I have any jet experience (CRJ simulator course is all I've done), but are hawker's THAT bad? Considering that going to the shaker isn't the full stall, the 90 degree wing drop sounds like you guys take it farther than the shaker. So, for clarification, once you get to the shaker on a hawker, there's a dramatic wing drop? If that's the case, shouldn't the shaker be set to activate a few knots faster, so you have warning before the wing stalls? Thanks for the info.
detpilot is offline  
Old 12-01-2009, 03:56 PM
  #4  
Line Holder
 
Joined APC: Feb 2008
Posts: 89
Default

What they are actually looking for is a stall. They want to see if having the leading edge off changes that margin between shaker and stall. Lear 25 in the hangar next to us hit a bird and needed a new leading edge. Lear brought their own pilots in to test fly, they said that one was real exciting.
Dave
grimmdj is offline  
Old 12-01-2009, 05:44 PM
  #5  
Gets Weekends Off
 
Ziggy's Avatar
 
Joined APC: Apr 2006
Position: Sofa Stress Tester
Posts: 614
Default

Performed these tests last summer, really a non-event if your properly prepared. There's a graph in the AFM that will chart when the stall warning and identification are suppose to activate. Also there are procedures. Just review the material and follow the book. It's actually kinda hard to stall this aircraft, but it can be done.
Ziggy is offline  
Old 12-01-2009, 07:13 PM
  #6  
Gets Weekends Off
 
detpilot's Avatar
 
Joined APC: Oct 2005
Position: Trying not to crash
Posts: 1,260
Default

Very interesting. So you fly (and stall) the plane with the leading edge removed? Anyone have any pics?
detpilot is offline  
Old 12-02-2009, 03:13 AM
  #7  
Line Holder
 
Joined APC: Feb 2008
Posts: 89
Default

NO,NO,NO. After the leading edge has been off and has been put back on.
I hope you're kidding.
grimmdj is offline  
Old 12-02-2009, 03:59 AM
  #8  
Gets Weekends Off
 
Joined APC: Dec 2005
Posts: 233
Default

Originally Posted by detpilot View Post
Now, by no means do I have any jet experience (CRJ simulator course is all I've done), but are hawker's THAT bad? Considering that going to the shaker isn't the full stall, the 90 degree wing drop sounds like you guys take it farther than the shaker. So, for clarification, once you get to the shaker on a hawker, there's a dramatic wing drop? If that's the case, shouldn't the shaker be set to activate a few knots faster, so you have warning before the wing stalls? Thanks for the info.
Pretty much all swept wing a/c have nasty stall habits.....hence the stick shakers, pushers, etc.
quimby is offline  
Old 12-02-2009, 05:32 AM
  #9  
Gets Weekends Off
 
detpilot's Avatar
 
Joined APC: Oct 2005
Position: Trying not to crash
Posts: 1,260
Default

NO,NO,NO. After the leading edge has been off and has been put back on.
I hope you're kidding.
Makes much more sense... Unfortunately I wasn't kidding, but I did have a few drinks and was ready to believe anything!

Still interesting that the stall changes much with the same leading edge design. Learn something new everyday, I tell ya!
detpilot is offline  
Old 12-02-2009, 05:44 AM
  #10  
The NeverEnding Story
 
BoilerUP's Avatar
 
Joined APC: Sep 2005
Posts: 7,475
Default

Originally Posted by detpilot
Still interesting that the stall changes much with the same leading edge design. Learn something new everyday, I tell ya!
When you take the leading edge off a plane and later re-install it, just a few hundredths of an inch difference in alignment could make an aerodynamic stall go from predictably benign to a complete roller-coaster ride.
BoilerUP is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Longbow64
Part 135
117
07-23-2009 08:46 AM
RmTrice
Pilot Health
36
11-30-2008 06:18 AM
vagabond
Major
46
09-02-2008 01:07 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Thread Tools
Search this Thread
Your Privacy Choices