02-11-2005, 22:39
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צחי בן עמי לתחום התעופה הצבאית, חיל האויר ותולדותיו
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חבר מתאריך: 17.10.04
הודעות: 8,704
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המסוק הזה הוא עדיין על הנייר
מדובר בהצעה של חברת בואינג\בל למסוק התובלה של העתיד.
ובהרחבה:
The US Army Aviation Applied Technology Directorate, in cooperation with its Joint Service and NASA partners, has awarded five 18-month Concept Design and Analysis (CDA) contracts for a Vertical Takeoff and Landing (VTOL) Joint Heavy Lift, (JHL) rotorcraft. In order of their design cruise speeds, the five concept vehicles chosen for study are the:Sikorsky X2C, X2 Technology Crane coaxial rotor (165 knots) Boeing ATRH, Advanced Tandem Rotor Helicopter (165 knots) Sikorsky X2HSL, X2 Technology High Speed Lifter advancing blade compound helicopter (245 knots) Bell Boeing QTR Quad Tilt Rotor (275 knots) Frontier Aircraft OSTR Optimum Speed Tilt Rotor (310 knots).
The CDA contracts are for conceptual/preliminary design of a baseline aircraft and specific design excursions to identify the impact of payload, range, environmental conditions, and shipboard compatibility on aircraft size, performance, operational suitability, cost, schedule, and development risk. The is a JHL VTOL rotorcraft that supports future Joint concepts of operations (CONOPS). These include mounted and dismounted vertical envelopment; executing operational maneuver and sustainment operations at extended ranges simultaneously into unprepared, complex terrain locations under extreme environmental conditions; and overcoming enemy anti-access strategies in Joint expeditionary operations from land and sea bases.
The JHL baseline design specification is to carry an FCS/Stryker/LAV Vehicle over a 250 nautical mile (nm) radius, under 4000 foot density altitude and 950 Fahrenheit (4k95) conditions, from/to land or sea bases and operating areas. Eight specific excursions to these conditions will also be investigated that include lighter and heavier cargo (16 to 26 tons), shorter and longer mission radii (210 to 500 nm), more extreme environmental conditions (6,000 ft at 95÷F), and full compatibility with a future ship.
The CDA is part of the overall multi-year (FY05-07) JHL Concept Refinement effort focused primarily on supporting the joint requirements definition process. The CDA is the technical pillar of activity designed to inform the joint requirements analysis with credible rotorcraft design concepts and performance projections that can reasonably be matured to a Technology Readiness Level 6 by 2012. The CDA contracts deliverables include aircraft designs with substantiating data, a specification document, a technology development strategy, and cost/schedule estimates for a Component and Technology Demonstration phase in a large-scale flight vehicle.
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