Tarzanboy From United States of America, joined Sep 2003, 132 posts, RR: 0 Posted (2 years 10 months 1 week 3 days 1 hour ago) and read 3996 times:
Are there any DC-9 drivers here? Have you ever flown the DC-9 30 or 50?
What is the rotation technique? I have seen some cockpit pictures of the PFD and the attitude pitch lines are graded in intervals of 5 degrees, so moving up from the horizon there are 2 bars and then a 15 degree bar labelled 15.
I have been searching online but could not find the answer to this question, at what pitch attitude angle would the DC-9 30 or 50 [not MD-80] have a tailstrike?
Tb727 From United States of America, joined Jun 2005, 1372 posts, RR: 4 Reply 2, posted (2 years 10 months 1 week 3 days ago) and read 3934 times:
Easy, pull back on the yoke!
I'm not on the 9 but looking at the manual, a normal rotation is 3 degrees per second to the target all engine pitch attitude in one smooth motion. You will whack the tail at approx 11.5 degrees with the mains still planted on the ground.
tarzanboy From United States of America, joined Sep 2003, 132 posts, RR: 0 Reply 3, posted (2 years 10 months 1 week 2 days 21 hours ago) and read 3832 times:
Tb727, hey - are you quoting from a DC-9 manual? Thanks dude.
Tb727 From United States of America, joined Jun 2005, 1372 posts, RR: 4 Reply 4, posted (2 years 10 months 1 week 2 days 20 hours ago) and read 3747 times:
Quoting tarzanboy (Reply 3): Tb727, hey - are you quoting from a DC-9 manual? Thanks dude.
bohica From United States of America, joined Feb 2004, 2407 posts, RR: 0 Reply 5, posted (2 years 10 months 1 week 2 days 18 hours ago) and read 3701 times:
Quoting Tb727 (Reply 2): Easy, pull back on the yoke!
Should the airplane be accelerating down the runway first?
tb727 From United States of America, joined Jun 2005, 1372 posts, RR: 4 Reply 7, posted (2 years 10 months 1 week 2 days 7 hours ago) and read 3478 times:
Quoting bohica (Reply 5): Should the airplane be accelerating down the runway first?
Yeah, preferably beyond Vr will give you the best chance at getting off the ground!
PGNCS From United States of America, joined Apr 2007, 2511 posts, RR: 45 Reply 9, posted (2 years 10 months 1 week 1 day 22 hours ago) and read 3235 times:
I have flown every variety of DC-9 except the -20. Rotate at approximately 3 degrees per second. Two engine pitch for climbout will be around 13-18 degrees nose high depending on a host of conditions such as weight, temp, altitude, engines installed, etc. Too many specifics to generalize, but 15 degrees nose high is the normal two engine attitude plus or minus a couple of degrees, with single engine climbout attitude being maybe 4 degrees lower initially (12.5 is a common initial target). It is rather difficult but not impossible to get a tailstrike on takeoff in a DC-9, much harder than a 757 or 767-300 for instance.
I don't have my manual set handy (I am not currently flying the DC-9), but I recall that a tailstrike happens on takeoff at a tad more than 11 degrees pitch, which seems to square with what Tb727 is saying. If you rotate at the correct speed at 3 degrees per second you won't hit the tail.
There is absolutely nothing novel or unpredictable in the handling of the DC-9; rotation is entirely conventional.
As has been said ad-nauseaum, there's nothing special about the take-off procedure for the DC-9s. And I've seen 3 deg. per sec. rotation rate quoted in AFMS and used as a rule of thumb in everything from a C150 to 737s and 777s
Bonus points to anybody who can come up with an airplane or two that would be very different from the norm
tarzanboy From United States of America, joined Sep 2003, 132 posts, RR: 0 Reply 11, posted (2 years 10 months 1 week 1 day 22 hours ago) and read 3214 times:
Thanks for the further info PGNCS et al.
Hey Tb727, out of curiosity, if you don't fly the DC-9, where did you get the manual!?
vikkyvik From United States of America, joined Jul 2003, 8193 posts, RR: 28 Reply 12, posted (2 years 10 months 1 week 1 day 21 hours ago) and read 3197 times:
AIRLINERS.NET CREW PHOTO SCREENER
Quoting Fly2HMO (Reply 10): Bonus points to anybody who can come up with an airplane or two that would be very different from the norm
The B-52?
"Two and a Half Men" was filmed in front of a live ostrich.
PGNCS From United States of America, joined Apr 2007, 2511 posts, RR: 45 Reply 13, posted (2 years 10 months 1 week 1 day 21 hours ago) and read 3187 times:
Quoting tarzanboy (Reply 11): Can regular non flyers buy flight manuals?
I have no knowledge of this site or product, so buy at your own risk. I will post it here as it was obtained by a very quick Google search (there are many other similar offers out there):
I know nothing of this, but for older aircraft especially the manuals are frequently available, although are certainly not guaranteed to be current or used for aircraft operation.
Seek and ye shall find. There's a lot of stuff out there, and it varies dramatically in quality.
Quoting tarzanboy (Reply 11): Thanks for the further info PGNCS et al.
bohica From United States of America, joined Feb 2004, 2407 posts, RR: 0 Reply 14, posted (2 years 10 months 1 week 1 day 20 hours ago) and read 3173 times:
Quoting Fly2HMO (Reply 10): Bonus points to anybody who can come up with an airplane or two that would be very different from the norm
tb727 From United States of America, joined Jun 2005, 1372 posts, RR: 4 Reply 15, posted (2 years 10 months 1 week 1 day 20 hours ago) and read 3147 times:
Quoting tarzanboy (Reply 11): Thanks for the further info PGNCS et al.
Hey Tb727, out of curiosity, if you don't fly the DC-9, where did you get the manual!?
I'm on the 72 but for whatever reason I get a copy of the DC-9 as well when we get revisions on CD, I think I just asked for it last time. I wouldn't give out my companies manuals because we are small and our name is all over it(plus I am pretty sure I am not allowed) but the site that PGNCS directed you to would probably be good enough for an avid aviation fan like yourself. For $17, that's pretty good for reference only.
Packcheer From United States of America, joined Nov 2008, 323 posts, RR: 0 Reply 17, posted (2 years 10 months 1 week 5 hours ago) and read 2849 times:
How different is the 764? or 753? or 739? Does that much added length mean slower rotation?
I do not as about Airbus becuase they appear to sit fairly high on their gear, I doubt they'd be in danger.
jetlagged From United Kingdom, joined Jan 2005, 2452 posts, RR: 17 Reply 18, posted (2 years 10 months 1 week 5 hours ago) and read 2837 times:
This site has a large amount of operations manual info to download, including normal takeoff procedures. Unfortunately nothing on the DC-9, but there are sections on the 717 and MD80 which are closely related.
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