Accession Number:

AD0875793

Title:

Airworthiness and Flight Characteristics Test Production OH-58A helicopter Unarmed and Armed with XM27E1 Weapon System, Performance

Descriptive Note:

Final rept. Aug 1968-May 1970

Corporate Author:

ARMY AVIATION SYSTEMS TEST ACTIVITY EDWARDS AFB CA

Report Date:

1970-09-01

Pagination or Media Count:

141.0

Abstract:

Performance tests were conducted on a production OH-58A helicopter to determine compliance with performance guarantees outlined in the detail specification and approved revisions, and also to provide information for the operators manual. The testing consisted of 99 flights totaling 62.5 productive hours. The OH-58A met or exceeded all of the contractual performance guarantees. The engine inlet loses with the particle separator installed exceeded the limits of the detail specification. A single flight at cold temperatures indicated that level flight performance is significantly affected by compressibility. Although all contractual hover performance guarantees were met, the helicopter could not hover out of ground effect on a 95 F day at gross weights greater than 2930 pounds with the particle separator installed. Under moderate temperature conditions, the performance capabilities of the OH-58A are satisfactory for mission accomplishment. It is recommended that consideration be given to increasing the utility of the OH-58A by installing a more powerful engine.

Subject Categories:

  • Helicopters
  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE