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Here you go OA and Max...[/FONT]
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The JT8D is an axial-flow, dual spool, fully ducted turbofan engine. It's design dates back to 1960 Some of the certification milestones are as follows.[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Feb 1963 JT8D-1 certified @ 14,000 lbs thrust (entered service 1964)[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Apr 1963 JT8D-5 certified @ 12,000 lbs thrust[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Mar 1966 JT8D-7 certified @ 14,000 lbs thrust[/FONT]
- [FONT=Arial, Helvetica, sans-serif]May 1967 JT8D-9 certified @ 14,500 lbs thrust[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Sep 1968 JT8D-11 certified @ 15,000 lbs thrust[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Apr 1971 JT8D-15 certified @ 15,500 lbs thrust[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Feb 1974 JT8D-17 certified @ 16,000 lbs thrust[/FONT]
- [FONT=Arial, Helvetica, sans-serif]Apr 1976 JT8D-17R certified @ 16,400 / 17,400 lbs thrust [/FONT]
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1988 saw the end of production of the JT8D -7 thru -17's with 11,878 units being produced. Those produced by dash models are:[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -1/1A/1B/5 (1,809)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -15A (338)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -7/7A/7B (2,612)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -17 (1,069)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -9/9A (2,832)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -17A (241)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -11 (128)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -17R (312)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -15 (2,525)[/FONT]
[FONT=Arial, Helvetica, sans-serif]JT8D -17AR (12)[/FONT]
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Pretty much by the end of 1988 almost all the -1 and -5 were converted to other dash models or were no longer in service.[/FONT]
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The JT8D-209, which was the first of the -200 series, was certified in 1979 and entered service in 1980. Since 1989 only the -200 series JT8D's are being manufactured. The -200 series engines produce 21,000 + lbs of thrust.[/FONT]
These engines also drink fuel like crazy the -9's and 15's will normally consume about 2500-3500 pph of fuel in cruise depending on desired Mach number and aircraft weight. The average about 3000 pph...at Mach .79