Thrust reversers are an effective means of reducing landing groundroll distance, but their use and effectiveness are limited by the problem of exhaust plume reingestion into the inlet which causes undesirable thermal distortion for the engine. Canting the reverser discharge away from the inlet allows the reverser to be used longer before reingestion but it also reduces the effective reverse thrust. This paper investigates the effect of varying reverser discharge angles on landing groundroll distance for an advanced fighter configuration in the 30000-40000 lb landing weight class. Utilizing the results of water tunnel testing, along with full and partial reverse engine data, landing groundroll distances are predicted for various reverser discharge angles. The analysis indicates that uncanted thrust reversers can reduce the landing groundroll from 5000 feet to approximately 2000 feet and that canting the reversers outboard away from the vertical axis allows them to be used for a longer portion of the groundroll and can further reduce the landing groundroll to distances as short as 1000 feet.
Advanced fighter thrust reverser integration for minimum landing distance
Integration von Schubumkehrvorrichtungen in moderne Kampfflugzeuge fuer minimale Landelaengen
AIAA-Papers ; Jul ; 1-5
1987
5 Seiten, 7 Bilder, 2 Tabellen, 2 Quellen
Aufsatz (Konferenz)
Englisch