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General Aircraft
This forum is for general aircraft modelling discussions.
Hosted by Jim Starkweather
MIg and sukhoi
Tigercat
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England - East Anglia, United Kingdom
Joined: July 20, 2005
KitMaker: 216 posts
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Posted: Tuesday, May 02, 2006 - 11:30 PM UTC
Hi Fred

Engineering like life is about compromise. A nose intake can be as efficient as a side intake. Other factors also influence design. Early jet engines especially axial-flow turbojets were very sensitive to airflow fluctuations explaining the high number of early jets with nose intakes.

Getting back towards the main topic. The intake design of the SU-27 and MiG-29 are optimized for high angles of attack. By having the intakes below and behind the leading edge of the LERX more air can enter the intake at high AoA. The same principle applies to the F-18.
JPTRR
Staff MemberManaging Editor
RAILROAD MODELING
#051
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Tennessee, United States
Joined: December 21, 2002
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Posted: Wednesday, May 03, 2006 - 12:45 AM UTC

Quoted Text

Hi Fred

Engineering like life is about compromise. A nose intake can be as efficient as a side intake. Other factors also influence design. Early jet engines especially axial-flow turbojets were very sensitive to airflow fluctuations explaining the high number of early jets with nose intakes.

Getting back towards the main topic. The intake design of the SU-27 and MiG-29 are optimized for high angles of attack. By having the intakes below and behind the leading edge of the LERX more air can enter the intake at high AoA. The same principle applies to the F-18.


Hi david,

Very well put.
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