Accession Number:
ADA064159
Title:
Preliminary Design Study of a Composite Main Rotor Blade for the OH-58 Helicopter. Volume I. Trade Analysis and Preliminary Design Study of Composite OH-58 Main Rotor Blade.
Descriptive Note:
Final rept. Oct 77-Feb 78,
Corporate Author:
KAMAN AEROSPACE CORP BLOOMFIELD CONN
Personal Author(s):
Report Date:
1978-09-01
Pagination or Media Count:
211.0
Abstract:
The objective of this program was to design a composite rotor blade for the OH-58CA helicopter which has reduced life-cycle costs, 6 improved hover performance, improved reliability and maintainability, reduced radar signature and increased ballistic survivability. A trade-study approach was used to select the final configuration for the preliminary design phase. A monolithic composite structure evolved which utilizes winding in the production of the main spar, skins and the trailing edge spline. The blade satisfies basic objectives using a double-tapered planform and a VR-7 airfoil. Composite materials selected include S-glass, E-glass and carbon graphite.
Descriptors:
- *COMPOSITE MATERIALS
- *ROTOR BLADES(ROTARY WINGS)
- FILAMENT WOUND CONSTRUCTION
- FIBERGLASS
- FATIGUE LIFE
- VULNERABILITY
- SURVIVAL(GENERAL)
- MAINTAINABILITY
- RELIABILITY
- HELICOPTERS
- TERMINAL BALLISTICS
- RADAR REFLECTIONS
- LIFE CYCLE COSTS
- TRADE OFF ANALYSIS
- GRAPHITED MATERIALS
- RADAR SIGNATURES
- RAIN EROSION
- AMMUNITION DAMAGE
- DEICING SYSTEMS
- OBSERVATION AIRCRAFT
Subject Categories:
- Helicopters
- Patrol and Reconnaissance Aircraft
- Laminates and Composite Materials
- Active and Passive Radar Detection and Equipment
- Ballistics