WesternDC1010 From United States of America, joined Jul 2003, 332 posts, RR: 3 Posted (9 years 10 months 1 week 6 days 21 hours ago) and read 8759 times:
I've noticed over the years that certain Mexicana's Boeing 727-264's had slightly elevated portions of their top rear fuselages. This raised area began above the rear over-wing emergency exit and ended just before the number 2 engine inlet and where the registration ended on these aircraft when painted in the 'Goden-Aztec' livery of he 1970's and 80's.
Concentriq From United States of America, joined Jan 2005, 368 posts, RR: 0
Reply 12, posted (9 years 10 months 1 week 6 days 1 hour ago) and read 7438 times:
Wow. this is indeed very interesting!!! Thanks for bringing this up and explaining it. So. if i understand this correctly, B727's equipped with JATO units would have an extra "nozzles" like in the image below?
i searched DB, and didnt find any photos with good details of this. does anyone have anything that will show more detail? (I hope Dan didnt take any offence at that . Great shot, but i would love to see some more detail)
RyanAFAMSP From United States of America, joined Nov 2004, 155 posts, RR: 0
Reply 13, posted (9 years 10 months 1 week 6 days 1 hour ago) and read 7289 times:
Excellent work everyone! Amidst the union busters, the NW DC-9 bashers, and the dirty Air France plane crowd, there are some people who really know their stuff.
So it is hard to tell from the photo - but where does the JATO system fire from? Are they solid rockets, or is it a liquid fueled rocket engine? How often would Mexicana use this system? It sounds SO expensive, loud, and inefficient! What a novelty!
ASAFA From United States of America, joined Apr 2005, 172 posts, RR: 2
Reply 14, posted (9 years 10 months 1 week 6 days ago) and read 7058 times:
Quoting RyanAFAMSP (Reply 13): Excellent work everyone! Amidst the union busters, the NW DC-9 bashers, and the dirty Air France plane crowd, there are some people who really know their stuff.
My thoughts exactly.
Amazing that type of system was installed on commercial aircraft. Like IDAWA said they were probably for emergency use only and would be used in the event of engine failure that would result in a crash. I am sure they didn't just turn them on for kicks (although that would be quite the takeoff experience!).
AeroWeanie From United States of America, joined Dec 2004, 1610 posts, RR: 52
Reply 16, posted (9 years 10 months 1 week 5 days 14 hours ago) and read 6455 times:
The Swearingen (Fairchild) Metro was designed with a JATO bottle in the tail for engine failure situations. I think few ever had it installed in service - I noticed that it was placarded as not installed in the one Metro cockpit I've been in. I have also noticed that most pictures of the Metros in the a.net database show a nav light back where the JATO bottle used to be installed.
AM744 From Mexico, joined Jun 2001, 1794 posts, RR: 0
Reply 17, posted (9 years 10 months 1 week 5 days 13 hours ago) and read 6416 times:
I've heard of them. According to some seasoned aviation relatives of mine, MX used this JATO system often at some point in time, mostly when they received the first 200s. In my years of spotting at MEX I never saw on single Jet Assisted Take Off. I wonder if it had to do with some engine upgrade or something? I'm eager to know.
AV757 From Colombia, joined Apr 2004, 662 posts, RR: 6
Reply 18, posted (9 years 10 months 1 week 5 days 12 hours ago) and read 6328 times:
No the JATO's are not used for normal take-off with 3 operating engines, they were only used in an emergency with the maximum allowed take-off gross weight only after the loss of an engine during take-off at V1 between the first segment and second segment climb so as to have the extra power during gear retraction after liftoff to comply second segment obstacle climb limitations, so as to not penalize payload on high altitude, high temperature airports as MEX.