Tristarsteve From Sweden, joined Nov 2005, 4311 posts, RR: 32
Reply 1, posted (10 years 2 months 6 days 18 hours ago) and read 3594 times:
I'm sure you will get some longer times but a TAT F28 flew 100000 hours, and a similar nbr of cycles before being scrapped.
Modern engines last a lot longer than 5000 hrs. An Icelandair RB211-535 amassed over 32000hrs on the wing, and I believe the record for a CFM56-3 is 34000hrs.
Kaddyuk From Wallis and Futuna, joined Nov 2001, 4126 posts, RR: 23
Reply 5, posted (10 years 2 months 5 days 22 hours ago) and read 3422 times:
Quoting Pavlin (Reply 4): 34000 HOURS thats more than 1300 days. How can it be. Did it fly nonstop or what
It means that the engine spent 34,000hrs running... thats not a constant running of the engine, you have to take into account the number of cycles as well... Its not just the number of hours on an airframe that needs to be taken into account but the number of cycles as its the cyclic loading of an airframe which reduces its life.
Always think "Do i *NEED* to start the APU or will Ground Power suffice? Do I NEED to perform a full power test or will a Dry run satisfy the test requirements? Stopping and Starting an aircraft are the most stressful times on the airframe and should be kept to a minimum.
Most high utilisation aircraft will fly for upwards of 20hrs per day (allowing a 2hr turn round in each city). This means that most aircraft are capable of flying 7,300hrs per year. Its actually a number closer to 5,000hrs per year taking into account down time for maintenance and delays etc etc. Over a 20 year period this means that an aircraft will spend 100,000hrs flying. Thats a whole lotta time...!
Whoever said "laughter is the best medicine" never had Gonorrhea
Starlionblue From Greenland, joined Feb 2004, 17494 posts, RR: 66
Reply 7, posted (10 years 2 months 5 days 7 hours ago) and read 3368 times:
Quoting HAWK21M (Reply 2): The Design Economic life of A320/B737 would be 75,000 Flight hrs,51,000 cycles or 20 yrs Average.
[not exact but approx]
That last word says it all. If the plane flies long segments in the desert, extend the life of the plane. If the 737 is with Aloha Airlines and does short interisland hops in salty air, cut the time in half...
"There are no stupid questions, but there are a lot of inquisitive idiots."
HAWK21M From India, joined Jan 2001, 31851 posts, RR: 54
Reply 8, posted (10 years 2 months 4 days 23 hours ago) and read 3344 times:
Quoting Starlionblue (Reply 7): Quoting HAWK21M (Reply 2):
The Design Economic life of A320/B737 would be 75,000 Flight hrs,51,000 cycles or 20 yrs Average.
[not exact but approx]
That last word says it all. If the plane flies long segments in the desert, extend the life of the plane. If the 737 is with Aloha Airlines and does short interisland hops in salty air, cut the time in half
True the Environment it operates & level of Mx contributes too.