Go Back  Airline Pilot Central Forums > Career Builder > Flight Schools and Training
Noob question: Turboprops = turbine time? >

Noob question: Turboprops = turbine time?

Search

Notices
Flight Schools and Training Ratings, building hours, airmanship, CFI topics

Noob question: Turboprops = turbine time?

Thread Tools
 
Search this Thread
 
Old 05-27-2009, 01:42 PM
  #11  
Are we there yet??!!
 
Joined APC: Apr 2006
Posts: 2,010
Default

T'prop times means jack$hit since the invent of the RJ.
Thedude is offline  
Old 05-27-2009, 03:29 PM
  #12  
Gets Weekends Off
Thread Starter
 
HectorD's Avatar
 
Joined APC: Mar 2009
Position: PA-44 Left Seat :P
Posts: 219
Default

Originally Posted by WmuGrad07
Centerline thrust counts as ME time if you have two engines...
As far as I know, some airlines don't consider in line thrust to be ME time. I am guessing its because there is no critical engine?
HectorD is offline  
Old 05-27-2009, 03:45 PM
  #13  
Gets Weekends Off
 
Joined APC: Aug 2008
Posts: 168
Default

Originally Posted by HectorD
As far as I know, some airlines don't consider in line thrust to be ME time. I am guessing its because there is no critical engine?
What about a cessna skymaster? I dont know for sure but I think if you loose the front the engine the flight characteristics are greatly effected as compared to loosing the back engine.
RomeoSierra is offline  
Old 05-27-2009, 03:54 PM
  #14  
Prime Minister/Moderator
 
rickair7777's Avatar
 
Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 40,059
Default

Originally Posted by RomeoSierra
What about a cessna skymaster? I dont know for sure but I think if you loose the front the engine the flight characteristics are greatly effected as compared to loosing the back engine.
The skymaster was designed to have the benefits of twin engines but none of the engine-out hazards of the traditional twin configuration. A traditional twin will yaw, roll, has a critical engine, and will lose 80% or more of it's performance.

A skymaster will lose about 50% of it's performance with no adverse handling characteristics. In fact I think it was originally allowed to takeoff single-engine if MGW and runway length permitted, in order to save engine wear.
rickair7777 is offline  
Old 05-27-2009, 03:56 PM
  #15  
Prime Minister/Moderator
 
rickair7777's Avatar
 
Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 40,059
Default

Originally Posted by HectorD
As far as I know, some airlines don't consider in line thrust to be ME time. I am guessing its because there is no critical engine?
US airlines will accept center-line thrust...because the F/A-18 is CLT. Military pilots have to get the CLT limitation removed from their FAA pilot cert though.
rickair7777 is offline  
Old 05-31-2009, 05:49 PM
  #16  
Line Holder
 
SunDog's Avatar
 
Joined APC: Jan 2008
Position: AT-301-600G
Posts: 88
Default

Originally Posted by Twin Wasp
You're burning kerosene, it's turbine.
unless it's a diesel like the DA42.
SunDog is offline  
Old 05-31-2009, 07:02 PM
  #17  
Does NOT get weekends off
 
snippercr's Avatar
 
Joined APC: Jul 2007
Position: ERJ - 145
Posts: 1,631
Default

Originally Posted by rickair7777
US airlines will accept center-line thrust...because the F/A-18 is CLT. Military pilots have to get the CLT limitation removed from their FAA pilot cert though.
Really? Wow, never knew that. Out of curiosity... how does that work? I mean physically looking at the aircraft, there are clearly two engines on either side of the longitudinal axis so there would be SOME yawing moment if one engine died. Obviously due to the closeness of the engines, it would be small. Is that the only reason why?
snippercr is offline  
Old 05-31-2009, 07:46 PM
  #18  
Gets Weekends Off
Thread Starter
 
HectorD's Avatar
 
Joined APC: Mar 2009
Position: PA-44 Left Seat :P
Posts: 219
Default

Originally Posted by snippercr
Really? Wow, never knew that. Out of curiosity... how does that work? I mean physically looking at the aircraft, there are clearly two engines on either side of the longitudinal axis so there would be SOME yawing moment if one engine died. Obviously due to the closeness of the engines, it would be small. Is that the only reason why?
I am guessing the same for the T-38?
But then, wouldn't something like a citation or even 727 be considered centerline thrust? the rudder is between the engines but there really isn't anything to produce adverse controls since there is no fuselage behind the engines no?

I am have just started ME training so this is really interesting.
HectorD is offline  
Old 05-31-2009, 07:47 PM
  #19  
Gets Weekends Off
Thread Starter
 
HectorD's Avatar
 
Joined APC: Mar 2009
Position: PA-44 Left Seat :P
Posts: 219
Default

Originally Posted by SunDog
unless it's a diesel like the DA42.
DA42 considered turbine?
HectorD is offline  
Old 05-31-2009, 07:53 PM
  #20  
Gets Weekends Off
 
RemoveB4flght's Avatar
 
Joined APC: Aug 2008
Posts: 770
Default

Originally Posted by HectorD
I am guessing the same for the T-38?
But then, wouldn't something like a citation or even 727 be considered centerline thrust? the rudder is between the engines but there really isn't anything to produce adverse controls since there is no fuselage behind the engines no?

I am have just started ME training so this is really interesting.
If there is any arm (distance laterally from the center of gravity outwards) at all, there will be adverse yaw. fuselage mounted engine may look close together, but several thousand pounds of thrust even a couple feet off the CG will get your attention.
RemoveB4flght is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
CRMcaptain
Flight Schools and Training
48
10-01-2014 06:38 PM
atpwannabe
Aviation Law
22
09-11-2009 06:29 PM
Bowersbum
Flight Schools and Training
34
12-01-2008 04:03 PM
mcartier713
Part 135
14
09-30-2008 04:17 PM
rocketman3746
Major
21
08-25-2008 06:42 AM

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



Your Privacy Choices