Blankbarcode
Topic Author
Posts: 115
Joined: Tue Apr 05, 2016 1:10 am

Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sat Oct 08, 2016 8:05 pm

An Air Vanuatu Twin Otter allegedly lost control to some flight surfaces shortly before landing at Walaha Airport on West Ambae. No injuries/fatalities.

http://dailypost.vu/news/aircraft-misha ... 09614.html
https://twitter.com/AirCrashMayday/stat ... 0635768834

Sounds very dangerous indeed, I wonder how they would have managed to maintain control at low altitude. Sounds a lot like the Air Moorea crash, too!
I'm glad everyone made it out in one piece.
 
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GreenArc
Posts: 97
Joined: Thu May 11, 2000 10:59 am

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 12:16 am

 
T prop
Posts: 966
Joined: Tue Apr 03, 2001 4:33 pm

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 1:30 am

Back when I used to work on Twin Otters, we were required to replace the rudder and elevator cables every year for this very reason and all other control cables every 5 years.. I'm surprised these events are still happening.
 
Varsity1
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Joined: Mon May 02, 2016 4:55 am

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 3:14 am

You can fly most airplanes in the vertical axis with just trim.
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RetiredWeasel
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Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 4:24 am

Varsity1 wrote:
You can fly most airplanes in the vertical axis with just trim.

I think you mean lateral axis if you're talking about pitch (elevator) control.
 
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OA940
Posts: 1979
Joined: Fri May 20, 2016 6:18 am

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 8:30 am

Really mirrors the Air Moorea. Apart from the ending.
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maxpower1954
Posts: 1067
Joined: Thu Sep 25, 2008 1:14 am

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 2:23 pm

RetiredWeasel wrote:
Varsity1 wrote:
You can fly most airplanes in the vertical axis with just trim.

I think you mean lateral axis if you're talking about pitch (elevator) control.


I think you meant longitudinal axis...

Vertical axis (yaw)- controlled by rudder
Lateral axis (roll) - controlled by aileron
Longitudinal axis (pitch) - controlled by elevator/stabilator

I've landed a Cessna 150 hands off the control wheel using just elevator trim for practice years ago. You need zero flap for such a stunt to minimize the pitch change required for landing.
 
loggat
Posts: 436
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Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 3:45 pm

maxpower1954 wrote:
RetiredWeasel wrote:
Varsity1 wrote:
You can fly most airplanes in the vertical axis with just trim.

I think you mean lateral axis if you're talking about pitch (elevator) control.


I think you meant longitudinal axis...

Vertical axis (yaw)- controlled by rudder
Lateral axis (roll) - controlled by aileron
Longitudinal axis (pitch) - controlled by elevator/stabilator

I've landed a Cessna 150 hands off the control wheel using just elevator trim for practice years ago. You need zero flap for such a stunt to minimize the pitch change required for landing.


RetiredWeasel is correct. Pitch is on the lateral axis. The lateral axis goes from wingtip to wingtip.
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maxpower1954
Posts: 1067
Joined: Thu Sep 25, 2008 1:14 am

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 5:45 pm

I'm the first to admit I was wrong on this one guys! Flying RC models since I was 16 and a career as an airline pilot with 25,000 hours obviously didn't depend on my knowledge of aeronautical engineering!
 
airtechy
Posts: 744
Joined: Sun Dec 24, 2006 7:35 am

Re: Elevator Cable Snaps on an Air Vanuatu Twin Otter

Sun Oct 09, 2016 6:12 pm

Assuming only one of the elevator cables broke, couldn't you roll the trim in the direction that tightens the remaining elevator cable with counteracting force on the yoke? :?:

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