Accession Number:

ADA059238

Title:

Lift Performance Indicator System Feasibility Study

Descriptive Note:

Final rept.

Corporate Author:

AIRESEARCH MFG CO TORRANCE CA

Personal Author(s):

Report Date:

1978-07-01

Pagination or Media Count:

212.0

Abstract:

This report presents the results of a study that was conducted to determine the feasibility of a helicopter lift performance indicator LPI system that would inform the pilot of the likelihood of a successful takeoff and landing before committing the aircraft to flight. The study includes the determination of the functional requirements including accuracy for an LPI system. Four specific helicopters were considered CH-47C, CH-54B, UH-1H, and UH-60A UTTAS. The LPI system should be capable of informing the pilot of the vehicles hovering capabilities both in and out of ground effect, vertical and best-airspeed climb capabilities, and several other performance measures essentially the same type of information as contained in the performance section of the operators manual for the vehicle. This information should be selectable for real-time and remote-site conditions input by the pilot, for both single and dual engine operation, and for maximum and normal rated power conditions. Wind velocity effects should be included. Generating this information in advance of lift-off requires that actual vehicle weight be measured. The system should also compute center of gravity from measured weight because of its impact on performance capability and its importance with respect to cargo positioning.

Subject Categories:

  • Numerical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE