Topic Author
Posts: 211
Joined: Tue Sep 19, 2000 12:53 pm

Jet Engine Cost.

Mon Oct 23, 2000 11:55 am

Hello, I have always wondered what difference in cost for engines are. Lets take the engines for the 777. Does anyone know what the costs are for the GE90, PW4090 & Trents are? Which one costs less? I know that rolls royce automobiles are very expensive. I would like a cost breakdown for each type. If this is not too much trouble.

Thanks, RT
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RE: Jet Engine Cost.

Mon Oct 23, 2000 2:57 pm

I don't know, but these may shed a glimmer of light:

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Click here for full size photo!

Photo © James Fullworth

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Photo © James Fullworth

click to see the description.
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Joined: Tue Mar 21, 2000 6:25 am

RE: Jet Engine Cost.

Tue Oct 24, 2000 6:06 am

Tarantine, since nobody seems to answer you, then I will put in my $0.02. Those monster engines leave the factory door with a price tag in the $ ten million region each, maybe +/- a few million. They are a cosiderable part of a new plane.
About RR: Rolls Royce Aero Engines have nothing to do with Rolls Royce Automobiles. They were separated completely some 25-30 years ago when they were rescued following the bankruptsy. Today RR Automobiles is 100% owned by the German car manufacturer Volkswagen AG.
Best regards, Preben Norholm
Always keep your number of landings equal to your number of take-offs
Topic Author
Posts: 211
Joined: Tue Sep 19, 2000 12:53 pm

RE: Jet Engine Cost.

Tue Oct 24, 2000 9:31 am

My father retired from Delta Air Lines in 1991 after 28yrs. He was involved with the re-engining of the DC-61 to -71 around 1983 or so. I remember he was saying that it costed over $1million per engine back then, I thought he was crazy! I guess he was correct!

I have read that ONE fan blade from a CF6-80A costs around $30thousand, amazing huh?

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Joined: Tue May 23, 2000 9:46 am

RE: Jet Engine Cost.

Tue Oct 24, 2000 10:32 am

I have never been able to comprehend the enormous cost of a jet engine. Yes, I know it is a very precision built piece of machinery made of lots of exotic materials, but MY GOD!!!!!!   1.7M for a little CRJ GE??? What (a question for all the A&P's and pilots) makes one of these things so expensive? I just don't get it.
Posts: 257
Joined: Wed Jun 07, 2000 6:31 am

RE: Jet Engine Cost.

Tue Oct 24, 2000 2:07 pm

Turbine engines are not cheap for exactly the reasons Beechbarron stated- they are constructed of somewhat exotic materials (titanium, Inconel and the like) and are built to exacting tolerances. However, aircraft parts tend to be overpriced, generally speaking. For example, I changed a wing landing/taxi light window on a CRJ several weeks ago. The part appears unremarkable; it's about 12 in. by 5 in. with an aluminium frame and polymer lens. Retail cost? $6000 US. Another example is a tool we had at A&P school used for adjusting needle valves in a plain ol' updraft carburetor. It's a small knurled aluminum knob with a steel shaft and weighs about 8 oz. Retail cost? $300 US. I've been told that the high cost of aviation parts and tooling is related to the high liability inherent in the industry. Does anybody know any other reasons for these high prices?
Thou shalt mind thine altitude,lest the ground reach up and smite thee.
Posts: 609
Joined: Wed May 26, 1999 10:07 am

RE: Jet Engine Cost.

Tue Oct 24, 2000 2:20 pm


1. A cheap next generation turbofan 800lb class, costs around $125,000 US.

2. Jet engines must be all of the following
a. Powerful
b. Light
c. Easy to work on (relatively)
d. Able to withstand high tempratures
e. Meet stringent Certification standards
3.To accomplish this jet engines are
a.Hand built for the most part
b.Made of leading edge superalloys
c.Often times some components are "grown"
d.Thousands of personhours are used in development

If you consider the rigorous tests these engines must be put through and not only not fail but still be usable you are getting a bargan!!!

Let's make a comparison:

Let's take the average automobile, let's say you, over the life of your auto you average 30 mph (that's about the life average of a car, you spend time idling in the mornings to get the interior warm, stoplights, etc) that means you will cover approximately one half mile per minute. That means your engine would be designed to last 120,000, the auto industry designs engines to last 36,000 miles. This engine would have to prove that it could run this time (assuming scheduled maintenance) without a failure, could absorb thousands of gallons of water per minute without failure (your auto cannot handle more that 1-2 ounces) accept and still run while ingesting birds and other foreign objects, (don't even think of this with an auto) and still not fail.

Jet engines are expensive, but they are quality devices.

If anyone wants my source data on this:

Using Agilis TF-800 Specs, design life 4,000 hrs, 2,000hrs TBO (min)

Using Ford V-8 Chilton SM 8793

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Joined: Mon Sep 04, 2000 10:45 am

RE: Jet Engine Cost.

Tue Oct 24, 2000 5:56 pm

777 engines go for around $15mill. I think CF6 goes for around $7mill.

Posts: 132
Joined: Tue May 23, 2000 9:46 am

RE: Jet Engine Cost.

Tue Oct 24, 2000 11:47 pm

My god, for 15M you could almost buy your very own small country!!!  
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Joined: Mon Jul 10, 2000 4:51 am

RE: Jet Engine Cost.

Wed Oct 25, 2000 1:14 am

Don`t forget production volumes! While one auto maker produces millions of vehicles each year, if one model of aircraft sells 500 over 20 years, it is considered a success!
Another price tag; in 1992, a PW120 (used on the dash 8-100), was 1.25MCdn each.

RE: Jet Engine Cost.

Wed Oct 25, 2000 2:10 am

I work on Pratt & Whitney 305A engines and Honeywell TFE-731 engines as well. Both of these engines are used on various types of business of aircraft. The 731 is almost a standard in the Light to medium jet category. The 731 being the smaller of the two engines in terms of size and thrust, runs between 850,000 to 900,000 dollar range with the nacelle package and accessories where as the 305 sells at just over 1 million for the same set up, this engine is used on the Lear 60. Keep in mind that these engines are no where near the thrust category of these other engines. The TFE-731-2-2b and -2-3b used on the Lear 35 and 31 both put out 3600 lbs of thrust where as the 305A puts out about 4600 lbs. The accessories do not come with these engines nor do the nacelle packages they are additional to the cost of the base engine.
Posts: 132
Joined: Tue May 23, 2000 9:46 am

RE: Jet Engine Cost.

Wed Oct 25, 2000 4:56 am

I just don't get it. That is insane. I could see one of those little Honeywell's or Pratt's going for around $50 or $60K per unit, but that is it.

RE: Jet Engine Cost.

Wed Oct 25, 2000 10:57 am

one reason I know of that hasn't been mentioned for engine cost is liability.

if a plane goes down because of the engines design or failure of the engine under normal operating conditions, then the manufacturer can expect to be liable along with the operator of the aircraft.

Posts: 29881
Joined: Wed Jul 07, 1999 11:27 am

RE: Jet Engine Cost.

Thu Oct 26, 2000 6:46 am

Keep in mind that all of these prices are for new engines. The value of engines change as they get older and closer to their overhaul times.

I would suggest that you get a copy of Trade a Plane and peruse the ads in the back of the magazine. I have seen jet engines down to $6000 dollars in there, They where out of time, Without a data plate, and from some 1950's military trainer but they where jet engines.

RE: Jet Engine Cost.

Fri Oct 27, 2000 3:36 pm

I think one of the reasons that turbine engines are so expencive is because company's that manfacture them sell maybe a few a year, and so if prices were $60k per engine and a few were sold, than where would the manufacturers get their money for materials, labour, research and testing?
Posts: 168
Joined: Thu Oct 26, 2000 3:14 am

RE: Jet Engine Cost.

Fri Oct 27, 2000 6:11 pm

If you check the picture archive, under Malaysian 777, you can see how much an new engine for the 777 costs. It said that the engine was $6 million Aussie.  

RE: Jet Engine Cost.

Sun Oct 29, 2000 3:43 am

Beechbarron, I know that this is allot of cash for what you call a LITTLE engine, but if you were to ever go for a flight in a LEAR 60 it would be worth every penny. My first maintenance flight in a 60 we took off from ICT and went straight to 41,000 in about 13 minutes. The buyers of these planes do look at performance in terms of how much time they will save with ATC and what types of runways they can take off from. Larger engines = shorter runways = airports closer to their destination which again is another time savings. To a business these characteristics seem to justify the cost.
Posts: 132
Joined: Tue May 23, 2000 9:46 am

RE: Jet Engine Cost.

Sun Oct 29, 2000 12:09 pm

Thanks Learjetman. FL410 in 13 minutes? WOW!!! And yes, to top executives in fortune 500 companys and air ambulances I guess the time saved with the speed does make it worth it. I met a Lear captain and FO the other day at PDK here in ATL who were flying for hospitals. They were based in Ft. Meyers Fla. and had several hops to make in that day!!!

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