Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Question About Cycles  
User currently offlinePendrilsaint From United States of America, joined Feb 2001, 685 posts, RR: 0
Posted (15 years 3 months 1 day 21 hours ago) and read 1363 times:

What exactly is a cycle? heh ....I know that they are used to judge the "age" of an aircraft....and I heard once that using thrust reverse puts another cycle on the engines....well since airtran used reverse thrust to go back from the gate wouldnt that put an extra cycle on the aircraft and therefore make it cheaper to just buy a pushback truck to use? thanks in advance=)

5 replies: All unread, jump to last
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 1, posted (15 years 3 months 1 day 21 hours ago) and read 1340 times:

As far as I know, a "cycle" with respect to a jet engine is each time it's started, run to takeoff power, and then eventually shutdown. Engine starts (for taxiing, etc.) would not be considered a cycle, but an engine run-up my maintenance *would* be.

Long, long, ago, at a former airline far away (turboprop equipment, PT-6 powered) I seem to recall that *any* engine start/shutdown was considered a cycle. My brain is too feable to remember for certain, so perhaps maybe someone else can chime in...

User currently offlineAirplay From , joined Dec 1969, posts, RR:
Reply 2, posted (15 years 3 months 1 day 21 hours ago) and read 1335 times:

In the context of maintenance schedules, a cycle is identical to a landing.

User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 4
Reply 3, posted (15 years 3 months 1 day 21 hours ago) and read 1331 times:

Speaking from my maintenance experience, unless the a/c goes flying, the cycle isn`t counted. In a paper based system, unless a pilot writes it down , the cycle didn`t happen. Therefore, mtce runs for any purpose just don`t show up. Overall, they are a small percentage of cycles, anyway.......

User currently offlineDirkSavage From , joined Dec 1969, posts, RR:
Reply 4, posted (15 years 3 months 1 day 12 hours ago) and read 1335 times:

Da Savage Man is back in the house!!!!!Been out doing the travelin' man thing for the last two weeks.....anybody miss me?????

Aircraft cycles pertain to takeoff, pressurize and then landing (for larger aircraft). Some say this is a better way to age an aircraft then flight hours. It could be said that an aircraft with 40K block hours (block hours are a different thing then flight hours...but that's a different subject) and 13K cycles, is "older" than and aircraft with 50K hours and 7K cycles. i.e. the first aircraft averaged three hour flights and the second aircraft averaged seven hour flights. This is most important for planning inspections and preventative maintenance due to the "flexing" of the pressurized compartment(s). Then, of course, you get into engine cycles and cycles for landing gear etc. etc. It all has to do with with the maintenance side of things.

Hey, why didn't anyone tell me that Speedos on Waikiki Beach will not get you any play? HeavyCapt, you are a POS!!!! Damn, I even rolled up a sock around my package........to no avail. Thank god the strippers did not mind my black socks and sandels fashion statement!!!


User currently offlineHeavyCapt From United States of America, joined Jan 2001, 62 posts, RR: 0
Reply 5, posted (15 years 3 months 1 day 12 hours ago) and read 1323 times:

Glad you are back....Somehow I just KNEW that if I told you to do it as a means of pulling....you would try it........I bet it was hysterical.......any film of the blessed event ?. Please do remember that it was I who told you to wear speedo BOARDSHORTS.....(capitalization indicates a key word) and NO SOCKS !!!

All the while I knew you'd screw it up

Brock "don'tgetcaughtdeadina bananahammock" Mandrake

P.S. I'm gonna have to tell the chicks in Crew Scheds......

Top Of Page
Forum Index

Reply To This Topic Question About Cycles
No username? Sign up now!

Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)

Similar topics:More similar topics...
Question About Airbus FMS posted Thu May 3 2007 14:20:41 by ArniePie
Question About Air Canada Flight (AC864) posted Thu Apr 12 2007 21:40:59 by MarkChief
Question About E-jets Engine Choice posted Sun Mar 11 2007 18:24:25 by PPVRA
Question About The 727 Lights. posted Sun Mar 11 2007 03:55:20 by Beau222
Question About MD-11 Nose Gear. posted Wed Feb 14 2007 05:10:43 by Gunsontheroof
A Question About Aircraft Decommissioning posted Thu Feb 8 2007 19:19:07 by Britjap
Question About The Propeller Contrails posted Wed Feb 7 2007 18:05:28 by Ariis
Question About Airline Fuel.... posted Sun Jan 28 2007 19:19:15 by Scalebuilder
Question About Emirates...... posted Sat Dec 30 2006 01:24:16 by Zvocio79
NonEngineer's Question About Fuel In Ceiling posted Thu Nov 2 2006 18:32:01 by SpeckSpot

Sponsor Message:
Printer friendly format