Engines for ETOPS

[chornedsnorkack]

Which planes can apply for ETOPS?

Twinjets can apply for ETOPS over 60 minutes, from 75 to 207 minutes - and if the airframe, engine and airline qualify, they can get it.

Are nonjets permitted to apply for ETOPS? Say, a twin turboprop - if the engine, airframe and airline meet the necessary qualifications, are they allowed to fly under ETOPS?

And what about other engine types? Like piston of wankel twins - can they apply for ETOPS?

And what about trimotors? Trijets can fly arbitrarily long routes without any extra ETOPS limits, but propeller aircraft need 4 engines for long-haul without extra qualifications. Can trimotors apply for ETOPS?

Are geared turbofans classed as jets or as turboprops? What about propfans?

[RitterKreuz]

i dont think it really matters much as long as it is a turbine engine.

basically...

the aircraft must be able to operate on one engine and it must be demonstrated that the crew is not overly burdened by the loss of the engine and that the probability of failure for the second engine must be below a certain percentage.

just about anything you want to know about ETOPS (or anything else for that matter) can be found here...

http://en.wikipedia.org/wiki/ETOPS#ETOPS_exclusions

[chornedsnorkack]

i dont think it really matters much as long as it is a turbine engine.

So, turboprops are treated equally with turbojets - no time limit for trimotor turboprops, ETOPS can be obtained for twin turboprops?

[RitterKreuz]

Im really not sure about turbo props to be honest with you.

ETOPS is for Extended TWIN engine operations so i would think that it only applies to aircraft with 2 engines. Aircraft with more than 2 engines dont require ETOPS certification that im aware of.