Engines

Just think – if you hand started your engine you would “flick” it anti clockwise consequently your starter is turning it correctly.
I am not quite sure of your comment re the cone!
This is usually referred to as a “Spinner” the important thing is to make sure that the crankshaft nut is fully tightened.
If I can be of further help please advise.

dakota2

Engine

Hi the engine i have is a SC 40, the reason for the question is that my starter is spining it anti clockwise and the prop is hiting the cone and i think i have fitted the prop the wrong side of the plastic stoppers, please let me know your thoughts.

regards

It depends on the engine. Which one do you want info on?

Best wishes
Steve P

Customers are given a choice of engines compatable with the variant of aircraft they have ordered. Their choice is determined on so many factors:

Fleet cominality
Engine overhaul contract
Efficency
Noise
Availability and cost of parts
Number of aircraft cycles
Reliabilty
What is required of the aircraft using them
Long or short haul
Environment they will be run in
Overall cost of buying the engine itself

These are just a few of the questions that the board need to answer before they make their choice.

Hope it has helped.

An Airline will see reliability, economic factors, maintanence, after sales, spares etc. In the end all an airline chooses the same engine time for a particulor fleet as if it chooses different engines the cost will sky rocket.

I think engine commonality plays a role sometimes. Then again, Singapore chose the Trent for their 777’s, where their entire fleet was P&W powered. I think politics plays a major role, as well. Look at the big stink that happened when BA initially chose GE to powere their 777’s. Didn’t subsequent orders have Trents as the engine choice? I know their 777 fleet has both engine types.

Sometimes the right engine makes all the difference between success and failure. Look at the Tu-144. The original NK-144 turbofans were rather inefficient. Only by producing the Tu-144D with RD-36-51 turbojets was Tupolev able to get the full potential out of the design. Pity it came to such a short end.

Sorry matthew – noise is of the essence! – ah those FR B732s…

Don’t know really but I assume that some are more efficient, while others are more reliable and some probably cost more than others, get better repair deals etc.

Obviously commonality is a factor, Cathay pretty much use all RR.

Don’t know why the differences with each aircraft, as you say RB211 for 757 and others (that compete with RB211) for other aircraft. I remember reading somewhere that an RR engine (maybe RB 211 could have been trent) was more reliable but less efficient than the competition. As the 744 has 4 engines maybe this is a bigger saving than a 757, which explains why they are more popluar than the RB211 on the 744 and not so on the 757.

RE: Engines

I am a big fan of the old GE CF 6 50E2
seen on old Lufthansa 747s absolute pearler of an engine and one of the less noisier also and look stunning

RE: Engines

Yeah, Middlesbrough is poor – but I moved out when I was 13 so I haven’t got a complex about it.

RE: Engines

ahh northern monkies !!!!

nah 🙂 , i have a mate form middelsbrough and we tease him about that recent survay that middelsbrough is the poorest palce in the country and he’s come down here to join all the kosovans and afgans (were in kent).

rabie :9

RE: Engines

Hey, lay off Northerners!!!

RE: Engines

Well speaking as a Northerner – fu*k off!

Only joking – I’m still bitter over they way the Evening Standard treated “the north” when Middlesbrough (ie. my team) bought Juninho from under Arsenals’s nose in 1995!

RE: Engines

well its a river up tut north (to a southern any thing north of the watford gap is north and alien :D)

rabie :9

RE: Engines

Well, “Trent” is certainly the most imaginative of all the names!

RE: Engines

I didn’t forget the CFM 56, just that I never really considered them “big” – more of a 737 or A320 engine (though admittedly they do propel A340’s)

RE: Engines

Is the RR Trent still the worlds only 3-shaft turbofan engine? That’d be my favourite… Why? It’s British 🙂 !!!

RE: Engines

you’d never have guessed…

but my favourite engine is the RB211-535C

RE: Engines

The GE 90 for me, it recently broke the world record for static thrust for a high-bypass turbofan. That thing rocks!

Regards, Glenn.