 chadjetlag
Member
Team Member
Joined: Dec 2006  GA, USA
 Posts: 3934 Feedback: 100% (13) |
Posted: 7/3/2012 11:16:05 AM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT 
|
|
|
FB41
American Gun Goon
Team Member
Joined: May 2003 USA
Posts: 5194 Feedback: 100% (1) Link To This Post |
Posted: 7/3/2012 11:40:13 AM
[Last Edit: 7/3/2012 11:40:57 AM by FB41]
He say what happened (other than the obvious
 )? |
|
|
|
Posted: 7/3/2012 11:57:32 AM
lucky, he go buy a lotto ticket also?
seriously glad he is ok  |
|
|
|
myitinaw
Men for Others
Life Member
Joined: Jan 2005 USA
 
Posts: 16095 Feedback: 100% (11) Link To This Post |
Posted: 7/3/2012 12:18:53 PM
WOW Glad he's safe and sound! |
|
|
chadjetlag
Member
Team Member
Joined: Dec 2006 GA, USA
Posts: 3936 Feedback: 100% (13) Link To This Post |
Posted: 7/3/2012 1:42:56 PM
Apparently an accumulator on the prop failed and the prop feathered.......
|
|
|
FB41
American Gun Goon
Team Member
Joined: May 2003 USA
Posts: 5195 Feedback: 100% (1) Link To This Post |
Posted: 7/3/2012 4:15:45 PM
Originally Posted By chadjetlag:
Apparently an accumulator on the prop failed and the prop feathered....... Ouch. In cruise, that wouldn't be all that bad (unless you were over really inhospitable terrain), but while doing aerobatics, it is a serious AW SHIT! moment. |
|
|
|
Posted: 7/3/2012 5:40:22 PM
thank heavens it didn't fail to the flat pitch position. I lost two co-workers and a whole plane load of people when a prop pitch change actuator failed and it was 50/50 as to which way it would go...fate that day chose flat pitch.
|
|
|
|
jestertoo
Member
Team Member
Joined: Sep 2006 TX, USA
Posts: 4114 Feedback: 100% (102) Link To This Post |
Posted: 7/3/2012 10:48:57 PM
Why would low pitch be worse?
|
|
|
|
|
Posted: 7/4/2012 12:23:42 AM
Usually single engine airplane props fail to flat pitch. Essentially a climb prop. I'd prefer that to feathering!
|
|
|
|
chadjetlag
Member
Team Member
Joined: Dec 2006 GA, USA
Posts: 3939 Feedback: 100% (13) Link To This Post |
Posted: 7/4/2012 9:45:51 AM
Originally Posted By NickH1:
Usually single engine airplane props fail to flat pitch. Essentially a climb prop. I'd prefer that to feathering! At climb pitch the ole airscrew is still making power, not so much at feather |
|
|
|
Posted: 7/4/2012 10:04:53 AM
I'm not familiar with any other piston single that fails to feather, any idea why it's setup that way? Maybe something to do with the inverted oil system?
Your buddy is a lucky man...Not because he walked away but because he'll never buy another beer again. |
|
|
|
Screechjet1
Former ranking USN line officer-Mongolia
Team Member
Joined: Sep 2005  MNG
Posts: 24025 Feedback: 0% (0) Link To This Post |
Posted: 7/4/2012 2:35:06 PM
Originally Posted By brasilia:
thank heavens it didn't fail to the flat pitch position. I lost two co-workers and a whole plane load of people when a prop pitch change actuator failed and it was 50/50 as to which way it would go...fate that day chose flat pitch. In a -120? |
|
|
Toiyabe
Always the Big Spoon. Always.
Moderator
Joined: Jan 2006  FLK
Posts: 9068 Feedback: 100% (199) Link To This Post |
Posted: 7/4/2012 2:40:33 PM
Originally Posted By Screechjet1:
Originally Posted By brasilia:
thank heavens it didn't fail to the flat pitch position. I lost two co-workers and a whole plane load of people when a prop pitch change actuator failed and it was 50/50 as to which way it would go...fate that day chose flat pitch. In a -120? I'm assuming the crash that killed "Sonny" Carter in 1991. |
|
|
|
Posted: 7/4/2012 2:45:17 PM
Originally Posted By jestertoo:
Why would low pitch be worse? It depends on the situation. If the engine stops running (or if you need to shut it down due to a fire, low oil pressure, etc.) you want it to feather. Strangely, a windmilling propeller generates almost as much drag as a solid circular plate of the same diameter. At least that's what they told me in flight training. If the engine is still going, you want it to still be able to generate thrust. |
|
|
|
LaRue_Tactical
Member
Industry Partner
Joined: Mar 2006 TX, USA
Posts: 22167 Feedback: 100% (168) Link To This Post |
Posted: 7/4/2012 4:30:01 PM
Jeez, it looked like a way tricked-out landing.
|
|
|
LaRue_Tactical
Member
Industry Partner
Joined: Mar 2006 TX, USA
Posts: 22168 Feedback: 100% (168) Link To This Post |
Posted: 7/4/2012 4:35:06 PM
http://www.youtube.com/watch?feature=player_embedded&v=PfYso5TInDA
One of the other videos showed it pretty banged-up. |
|
|
|
Posted: 7/4/2012 6:50:31 PM
Your buddy will be happy to know his little boo-boo made it to the national news here in the Philippines.
Glad he's OK. |
|
|
SnoopisTDI
Member
Team Member
Joined: Oct 2004 TX, USA
Posts: 10549 Feedback: 0% (0) Link To This Post |
Posted: 7/5/2012 9:38:36 PM
Maybe it was just because I already knew what was coming, based on the thread title, but it looked painfully obvious what was going to happen. Reminds me of an airshow I went to when I was in high school, where a guy was doing snap rolls on a 45deg down line and I knew long before he hit the ground that he had done one roll too many. He wasn't so lucky though.
 He followed his wife, who had died a few weeks prior in a crash.
I'm glad to know your friend made it though. I would not have expected that, based on video alone. I have friends who do acro competition and instruction, and I worry about them a lot. Also lost two professors in a mid-air while practicing for a show.  Can't afford mistakes doing stuff like this. |
|
|
|
Posted: 7/5/2012 9:47:30 PM
Originally Posted By HawkeyeNFO:
Originally Posted By jestertoo:
Why would low pitch be worse? It depends on the situation. If the engine stops running (or if you need to shut it down due to a fire, low oil pressure, etc.) you want it to feather. Strangely, a windmilling propeller generates almost as much drag as a solid circular plate of the same diameter. At least that's what they told me in flight training. If the engine is still going, you want it to still be able to generate thrust. Yup, if the prop fails flat (they should bleed to feather like this one did), it's like putting a barn door on the front of the plane. One-way trip to stallsville. |
|
|
|
LaRue_Tactical
Member
Industry Partner
Joined: Mar 2006 TX, USA
Posts: 22174 Feedback: 100% (168) Link To This Post |
Posted: 7/5/2012 10:55:42 PM
Originally Posted By ASUsax:
Originally Posted By HawkeyeNFO:
Originally Posted By jestertoo:
Why would low pitch be worse? It depends on the situation. If the engine stops running (or if you need to shut it down due to a fire, low oil pressure, etc.) you want it to feather. Strangely, a windmilling propeller generates almost as much drag as a solid circular plate of the same diameter. At least that's what they told me in flight training. If the engine is still going, you want it to still be able to generate thrust. Yup, if the prop fails flat (they should bleed to feather like this one did), it's like putting a barn door on the front of the plane. One-way trip to stallsville. Flat props help steepen approaches too ... |
|
|
|
Posted: 7/10/2012 8:02:35 PM
I like his quote about what was going through his mind, "...fly the plane as far into the crash as I can..."
Just damm. Glad your buddy is ok OP. 7mm |
|
|
ARCHIVED
PHL
