US Air Force Tests Eight-Blade Propellers for Legacy Hercules
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Hercules with eight blade propellers (photo : USAF)
Eight blades on C-130H (photo : miskypig)
Sekian blog PERTAHANAN REPUBLIK INDONESIA ini memberikan informasi tentang kekuatan militer indonesia, alutsista indonesia, pesawat tempur, kapal perang, kapal selam, dan marinir dengan artikel tentang US Air Force Tests Eight-Blade Propellers for Legacy Hercules semoga bermanfaat. Terimakasih telah membaca blog PERTAHANAN REPUBLIK INDONESIA.
06 November 2010
Hercules with eight blade propellers (photo : USAF)The US Air Force is nearing the end of a flight test programme to measure the performance of Hamilton Sundstrand eight-blade NP2000 composite propellers for the Lockheed Martin C-130.
Since May, engineers with the 418th Flight Test Squadron have been testing a C-130H3 Hercules with the propellers at Edwards AFB, California, most recently completing minimum control airspeed tests.
Eight blades on C-130H (photo : miskypig)The NP2000 propellers replace the legacy C-130's four-blade propellers, increasing thrust at take-off and in the low-speed regime while also decreasing noise and vibration. Newer C-130Js already use a six-blade R391 composite propeller built by Dowty Aerospace.
The air force in part would like to use such an upgrade for its LC-130 aircraft flying missions to Antarctica, where currently jet-assisted take-off (JATO) bottles are used to decrease take-off distance. Depending on the final performance, the NP2000 could either reduce the number of JATO rockets needed, or eliminate the thrust augmentation system altogether.
After maximum combat-load take offs, three-engine departures and other tests, the USAF will reinstall the cargo aircraft's four-blade propellers to directly compare performance characteristics, say officials. Testing is expected to be finished in January, after which the service will evaluate whether to upgrade a subset of its legacy C-130s with the propeller.
The enhancement is similar to what commercial developer Snow Aviation International has been offering for several years for the C-130E and H models. Snow says the NP2000 propellers reduce the C-130's take-off run by more than 20%.
(Flight International)
(Flight International)
Sekian blog PERTAHANAN REPUBLIK INDONESIA ini memberikan informasi tentang kekuatan militer indonesia, alutsista indonesia, pesawat tempur, kapal perang, kapal selam, dan marinir dengan artikel tentang US Air Force Tests Eight-Blade Propellers for Legacy Hercules semoga bermanfaat. Terimakasih telah membaca blog PERTAHANAN REPUBLIK INDONESIA.
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