Beyond The Sprues
Modelling => Ideas & Inspiration => Engineering Dept. => Topic started by: Rickshaw on March 25, 2021, 12:27:48 PM
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I'm thinking about doing a conversion, a single engined version of a twin engined jet.
I need a relatively powerful turbofan engine in the late 1960s-early 1970s, approximately 12,000 lbs thrust. Does anybody know of any contenders?
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This link that may be useful in your turbofan engine search: Nate Meier's Jet Engine Specification Database (https://www.jet-engine.net/)
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This link that may be useful in your turbofan engine search: Nate Meier's Jet Engine Specification Database (https://www.jet-engine.net/)
Thanks. That answers the question!
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Western or Eastern?
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Western or Eastern?
Western, approximately 12,000lb to 16000lb thrust available approximately 1970
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CF34-8 or CF34-10, you'll find these on CRJ-700/900
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A JT8D variant is the first one that comes to mind, though I suspect there are other engines out there that would fit your criteria. I do't believe the CF34 existed in the time frame specified.
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Missed that note on the time period :-X . What about a SNECMA M45G, military engine of 15,000 lbt
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Options based upon being available in 1970 and with thrust range in 12K-16K lb range:
- P&W TF30
- Allison TF41
- RR Spey
- P&W JT8D or Volvo RM8 derivative
- RR RB.203 Trent
- RR/SNECMA M45G
I've left off large fans such as GE TF39/CF6, P&W JT9D or RR RB211.
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I do't believe the CF34 existed in the time frame specified.
Nah. CF34 didn't run until 1982
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How did you go finding your turbofan engine Rickshaw?
MAD
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Volvo RM8 (basically a Pratt & Whitney JT8D with afterburner)?
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Is your two-engine into one engine aircraft design big in terms of an export winner Rickshaw? The reason I ask, is depending on the origins of the given selected single turbofan is American, it could drastically effect such an export potential.
MAD
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It is planned to be exportable and not American engined. A good old fashioned well made Rolls Royce engine for me!
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No turbojets like Rolls-Royce Avon?
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No turbojets like Rolls-Royce Avon?
No, it has to have a decent range so a Turbofan...
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Utilising a turbofan does not automatically equate to better range.
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Utilising a turbofan does not automatically equate to better range.
No, it doesn't. You need to get both external and internal aerodynamics right and that sometimes gets more complicated than you'd expect. I've been involved with some intake redesigns and there are a lot of variables to deal with in getting good, smooth airflow (if you are not likely to get smooth airflow, you need an engine that can take a lot of distortion - that's one of the main differences between the B-2's F118 and the F101 and F110.
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I’ve heard that several plain ordinary sedans have better aerodynamics than say a super car like a Corvette. Even the older Corvettes had terrible aerodynamics and the new ones have to be even worse.