John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
|
 Posted: Fri Jan 15, 2016 6:59 am Post subject: AOA Instruments |
 |
|
After reading the attached NTSB article, I may have to rethink my attitude toward AOA Instruments.
In my early years of flying Kolbs I got pretty aggressive at times. One of my favorite exercises was to impress the crowd with approach and landing right on the edge of stall all the way to the ground. In the Ultrastar and Firestar I could keep the Winter venturi operated ASI, designed for gliders, right on 25 mph, the very edge of stall. If I got a half needle width below 25 the aircraft would start nibbling at the stall. This was great, a lot of fun, until the couple times when the wind stopped blowing. It is a very helpless feeling falling in a stall 20, 30, 50 feet above the ground.
While I was typing this I remembered a third incident where I stalled from approximately 50 feet AGL, on takeoff, in my MKIII, loaded to max, cargo and fuel, field elevation 6,539 feet, very high air temp, dust devils (clear air type that one cannot see) in the area at Grants Airport, New Mexico. High, turbulent cross wind. Soon as I started descending in a mush I went full throttle, tried to push the stick forward, although I don't think I did a very good job of it, got blown off the runway center line, and smacked down very hard into the desert sand, bounced back into the air and continued flying. Was lucky I did not do more damage than rearrange the 4130 gear legs on my MKIII. Only my second take off from a high altitude airport since I departed near sea level conditions on my flight to Monument Valley from Alabama, May 2009. My muscle memory had me at sea level, not 6,539 feet MSL.
An AOA would probably have prevented the NM stall. I don't know about the first two. Stupid is as stupid does. 
john h
mkIII
Titus, Alabama
| | - The Matronics Kolb-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kolb-List |
|
| Description: |
|
Download |
| Filename: |
MWL_2016_ga-loc.pdf |
| Filesize: |
374.67 KB |
| Downloaded: |
258 Time(s) |
_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
