Design Study of Repairable Main Rotor Blades

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Abstract:

This report presents the results of a design study of repairable main rotor blades. The designs studied are applicable to the Armys UH-1H helicopter with semirigid teetering rotor system. The program included development of analysis methodology, including a model for rotor blade life cycle costs, establishment of design concepts, analysis of these concepts from both a technical and cost viewpoint, and selection of a final recommended configuration for future development. As partial support for the concept of field repairability of rotor blades, an experimental evaluation of a major repair was conducted under simulated field conditions. The procedure used and the results of this evaluation are included as an appendix to this report.

Author(s):
Maloney, Paul F. ; Akeley, Carrol R.
Author Organization(s):
KAMAN AEROSPACE CORP BLOOMFIELD CT
Descriptive Note:
Final rept.
Pagination:
0262

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
R-928, USAAMRDL-TR-72-12
Contract/Grant Number(s):
DAAJ02-70-C-0070
Project Number(s):
DA-1-F-162203-A-119
Monitor Series:
TR-72-12, USAAMRDL
 Subject Terms
Joint Capability Areas:
JCA_4.3_Maintain; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.3.1_Depot Maintenance; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.6_Concepts; JCA_6.4.1_Secure Information Exchange; JCA_6_Net Centric; JCA_6.4_Information Assurance; JCA_1.3_Human Capital Management; JCA_1.3.2_Personnel Management; JCA_4.2_Supply; JCA_4.2.2_Inventory Management; JCA_5.6.3_Assess Achievement of Objectives; JCA_5.6_Monitor
Modernization Areas:
Microelectronics
Communities of Interest:
Air Platforms
Descriptor(s):
*HELICOPTER ROTORS, *ROTOR BLADES, AERODYNAMIC LOADING, HANDBOOKS, LIFE EXPECTANCY(SERVICE LIFE), MAINTAINABILITY, MAINTENANCE, RELIABILITY, RESONANT FREQUENCY, ROTARY WINGS, STRESSES, SURVIVAL(PERSONNEL)
Field(s)/Group(s):
Helicopters
Keyword(s):
H 1 AIRCRAFT, UH 1H AIRCRAFT, UH 1 AIRCRAFT
Report Date:
1972 Jul 01