development of the SUPPRESSOR AND THRUST BRAKE FOR THE DC-8 AIRPLANE Douglas Aircraft Company, Incorporated

Format:

Conference/Event

Author/Creator:

Jordan, L. R., author.

Conference Name:

SAE National Aeronautic Meeting

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1959

Summary:

THIS PAPER presents the development of the DC-8 suppressor and thrust brake unit from initial test work through the final design. The selection of the production unit was based on a wide background of test work using both model and full-scale facilities. On the basis of this work, the configuration selected for production consisted of a fixed, corrugated, suppressing nozzle with a retractable ejector. A target-type thrust brake, mounted in the ejector, was chosen for the thrust brake production unit. Approximately 12-db suppression and 44% reverse thrust are provided by the unit.The ejector is hydraulically operated and the thrust brake air actuated. Both actuation systems obtain power from the aircraft systems which provides for operation during engine-out conditions. Alternate methods of actuation are provided in case of a primary system failure.Mechanically, the suppressor-thrust brake was designed to provide high reliability and to be capable of operation anywhere within the flight envelope of the airplane. Particular attention was given to component failures and their effect on safety of the unit

Notes:

Vendor supplied data

Publisher Number:

590061

Access Restriction:

Restricted for use by site license