As we all know, STOVL aircraft like Harrier, F-35 and Yak-104 used some sort of valved nozzles positioned around the aircraft for maneuvering during hover. Can the same principal be used to provide super-maneuverability to a jet aircraft without the need for TVC? will there be a negative effect if we divert some of the energy from the combustion chamber to this nozzles?
TVC vs nozzles
- Thread starter Pendekar
- Start date
StephenBierce
New Member
On most modern combat aircraft the powerplants are bypass units, with the combustion chamber sleeved completely by the bypass tubing. The forward nozzles on the Harrier are fed from the compression fan only, so on a more conventional design it would be possible to route efflux from the compressor to nozzles. However, it's more a matter of where the nozzles would be located and how much leverage they would have on the airframe in flight.
The TVC is only for hover and very low speeds where the control surfaces cannot generate enough force to keep the aircraft stable. Once up to flight speed the regular control surfaces can generate much greater forces than the TVC and it cannot make a meaningful contribution.
On the other hand, a TVC should be able to help recover from a stall.
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