Accession Number : AD1019439


Title :   H-1 Upgrades (4BW/4BN) (H-1 Upgrades)


Descriptive Note : Technical Report


Corporate Author : U.S. Navy Patuxent River United States


Personal Author(s) : Girard,Steven


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1019439.pdf


Report Date : 01 Dec 2015


Pagination or Media Count : 42


Abstract : The mission of the AH-1Z attack helicopter is to provide rotary wing close air support, anti-armor, armed escort, armed/visual reconnaissance and fire support coordination capabilities under day/night and adverse weather conditions for the United States Marine Corps. The mission of the UH-1Y utility helicopter is to provide command, control and assault support under day/night and adverse weather conditions. Both the AH-1Z and UH-1Y aircraft incorporate state-of-the-artdesigns, which serve to improve capability, lethality, and survivability. Major modifications include a new four-bladed rotor system with semi-automatic blade fold of the new composite rotor blades, new performance matched transmissions, a new four-bladed tail rotor and drive system, upgraded landing gear, and pylon structural modifications. The H-1 Upgrades aircraft have increased maneuverability, speed, and payload capability. Both aircraft have fully integrated common cockpits/avionics that reduce operator workload and improve situational awareness, thus increasing safety.


Descriptors :   BUDGETS , ATTACK HELICOPTERS , MARINE CORPS , RELIABILITY , HELICOPTERS , costs , cost analysis , contracts , foreign military sales , test and evaluation , military acquisition , procurement , navy , aircrafts , production , maintenance


Distribution Statement : APPROVED FOR PUBLIC RELEASE