Climb gradient questions.
Thread Starter
Join Date: Sep 2011
Location: EVERYWHERE
Posts: 55
Likes: 0
Received 0 Likes
on
0 Posts
Climb gradient questions.
Firstly, I Remember reading that for a 2 engine aircraft with one engine out, the climb gradient shall not be less than 2.4%. Is this correct?
Secondly I believe most SIDs require a climb gradient of 3.3%, now if the SID requires a climb gradient of 7%, how do I know if I can make this?
Single engine is okay, since you have an engine out SID in that case.
May be a stupid ques for a lot of you, I would appreciate the help nevertheless.
Secondly I believe most SIDs require a climb gradient of 3.3%, now if the SID requires a climb gradient of 7%, how do I know if I can make this?
Single engine is okay, since you have an engine out SID in that case.
May be a stupid ques for a lot of you, I would appreciate the help nevertheless.
Join Date: Sep 2010
Location: England
Posts: 1,955
Likes: 0
Received 0 Likes
on
0 Posts
Some SID charts will show you a table of speed versus climb rate which will meet the SID requirements.
Also, in one of your company manuals you should be able to find climb gradient charts.
Also, in one of your company manuals you should be able to find climb gradient charts.
ECON cruise, LR cruise...
Join Date: Apr 2002
Location: MIRSI hold - give or take...
Age: 52
Posts: 568
Likes: 0
Received 0 Likes
on
0 Posts
What sort of aircraft are we talking? SEP or Far/JAA25?
if -25, then your AFM will have climb gradient tables to show what you can do OEI. If you plan on following the SIDs as your engine-out procedure, you ae legally entitled to remove the 0.8% IOC from the SID, i.e. for a 7% SID you'd enter with 6.2% to arrive at limiting TOM.
if -25, then your AFM will have climb gradient tables to show what you can do OEI. If you plan on following the SIDs as your engine-out procedure, you ae legally entitled to remove the 0.8% IOC from the SID, i.e. for a 7% SID you'd enter with 6.2% to arrive at limiting TOM.
The 2.4% gradient, twins, greater for tris and quads, is strictly for meeting certification, unrelated to obstacle clearance. The two are different.
GF
GF
Guest
Join Date: Apr 2009
Location: On the Beach
Posts: 3,336
Likes: 0
Received 0 Likes
on
0 Posts
gf:
Indeed, the Part 25 takeoff flight path is a certification requirement. Then, however, it becomes an operating requirement for the takeoff flight path in commercial operations. (FAR 121.189, et al)
The 2.4% gradient, twins, greater for tris and quads, is strictly for meeting certification, unrelated to obstacle clearance. The two are different.
