Accession Number:

ADA350509

Title:

Vertical Drop Test of a Beechcraft 1900C Airliner

Descriptive Note:

Final rept. Jul-Nov 95

Corporate Author:

FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ OFFICE OF AVIATION RESEARCH

Personal Author(s):

Report Date:

1998-05-01

Pagination or Media Count:

83.0

Abstract:

A commuter category Beechcraft 1900C airliner was subjected to a vertical impact drop test at the FAA William J. Hughes Technical Center, Atlantic City International Airport, New Jersey. The purpose of this test was to measure the impact response of the fuselage, cabin floor, cabin furnishings including standard and modified seats, and anthropomorphic test dummies. The test was conducted to simulate the vertical velocity component of a severe but survivable crash impact. A low-wing, 19-passenger fuselage was dropped from a height of 11 2 resulting in a vertical impact velocity of 26.8 ftsec. The airframe was configured to simulate a typical flight condition, including seats normal and experimental, simulated occupants, and cargo. For the test the wings were removed the vertical and horizontal stabilizers were removed the landing gear was removed and the pilot and copilot seats were not installed. The data collected in the test and future tests will supplement the existing basis for improved seat and restraint systems for commuter category 14 Code of Federal Regulation CFR Part 23 airplanes. The test article was fully instrumented with accelerometers and load cells. Seventy-nine data channels were recorded. Results of the test are as follows - the fuselage experienced an impact in the range of 149-160 gs, with an impact pulse duration of 9-10 milliseconds - the simulated occupants experienced g levels in the range of 32-45 gs with a pulse duration of 44-61 milliseconds - the test was considered to be a severe but definitely survivable impact - the fuselage structure maintained a habitable environment during and after the impact - the seat tracks remained attached to the fuselage along the entire length of the fuselage - all standard seats remained in their tracks after the impact - all exits remained operable

Subject Categories:

  • Civilian Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE