Accession Number : ADB027822

Title :   Direct Side Force Control Criteria for Dive Bombing. Volume 1. Summary

Descriptive Note : Final technical rept. 15 Mar 1975-15 Sep 1976

Corporate Author : MCDONNELL AIRCRAFT CO ST LOUIS MO

Personal Author(s) : Brulle, Robert V ; Moran, William A ; Marsh, Richard G

PDF Url : ADB027822

Report Date : Sep 1976

Pagination or Media Count : 63

Abstract : A fixed base simulation study was conducted to determine design criteria for direct side force control (DFSC) when used for dive bombing. Three DSFC modes were simulated; a wings level turn and two lateral translation modes. A fixed depressed reticle bomb sight, a modified fixed sight that was roll stabilized, and a future impact point (FIP) computing sight were used. In addition, a control mode that rolled the aircraft about the bomb sight, line of sight was implemented. The simulation varied several aircraft response characteristics and control parameters to provide a large data base for analysis. Results indicate that the DSFC wings level turn mode is the best and improves pilot acceptability and his bombing accuracy over that of a conventional roll-to-turn aircraft. The pilots were able to adapt to a large range of aircraft response characteristics using the rudder pedal for DSFC inputs. No longitudinal coupling when using DSFC should exist. Pilots can tolerate a positive roll coupling when using DSFC. A lateral acceleration of about one G should be available for a combat dive bombing using DSFC.

Descriptors :   *AERIAL DELIVERY, *DIVE BOMBING, ACCURACY, AERODYNAMIC STABILITY, AIRCRAFT FIRE CONTROL SYSTEMS, BOMB TRAJECTORIES, FLIGHT SIMULATION, PERFORMANCE(HUMAN), PILOTS, ROLL, WEAPON SYSTEM EFFECTIVENESS

Subject Categories : Armor
      Fire Control and Bombing Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE