Wildchild wrote:
From reading this, I have learned 2 things:
Boeing's jet engine's were sh* t
Boeing had to make tough airframes to compensate for the sh* tty engine's.
Chris.
Time and distance coupled with limited experience really mess up perspectives pal-first off, Boeing never did make a jet engine (they did make a very few turbine helicopter engines, the 502 one of which wound up in a yellow high boy 32 FORD) THE engine to have and THE most reliable commercial jet engines at the time were P&W JT-3D/JT-4D's or the military derivative, J-57/J-75, the JT-3/4 series were about generation 2.5 from a Whittle engine. GE made a very few derivative engines for the limited numer of 880/990's they built that grew out of the J-93 in the XB-70 and the J-79 was a very touchy and 'fragile' engine early on and fairly prone to cease functioning at a moments notice hence the nickname for the F-104 as 'lawn dart'. The JT-8D is a fine engine and is as reliable as a small block Ford. When first built the JT-8 series was designed for and used on the HOUND DOG standoff missile carried on some B-52's and had an average life of about 2 hours, and since the missile was a 'throw away' decoy no one cared.The core engine had great potential and became 'old reliable' that made it the one to have for up to 17500 Lb/Thrust, and for decades have run reliably for in some cases 35000 hours. If you have a JT-8 that needs overhaul at 17000 hours, you want a good look at what the flight crews have been doing to that engine.
The first JT-9D's on early 747's had the ability to sometimes runs for a dozen hours before having an issue and failing, Boeing flew RA004 to the Paris airshow and had to change engines because of turbine binding issues before they could fly it home and change engines again. Probably the best first series big fan motors are the CF-6 from GE which are tougher than Martian algebra. I'm a big CF-6/CF-90/Genxt fan, P&W 4084's belong someplace other than mounted on airplanes.
It's obvious that you have NEVER had the distinct pleasure of standing next to the fan exhaust ducts on a running JT-3D in freezing crappy weather with the longest straight screwdriver you own or can borrow trying to 'chase the mouse' on the fuel control to trim one through a small hole in the closed cowling (on warm days you'd 'hit' the mouse in about 24 seconds when you could really use some cool air and spend hours in cold weather doing the same task).
I used to love getting a FNG on headset on a 707 trim, riding the FE seat I was in communication with the guy on the ground and hear after telling him 'fuels in' and hearing/sensing that distinctive 'whump' 'WE'VE GOT A FIRE' in a very high pitched voice, 'is it growing?' 'uh...no I guess not' 'is it going out now?' 'yeeeeah' 'congratulations, you've just been involved in your first dinosaur start, ready for number four?'
The what passes these days a the 'press' splashes a big headline in the paper or TV news 'Boeing jet has engine failure' no, the P&W/ GE/ CFM/Rolls mounted ON a Boeing jet has had an issue.