Suryanarayana, BG (1988) Effect of ASB-II bombs and 800 litre drop tank on the aerodynamic characteristics of MiG-21 (M) aircraft. Project Report. National Aerospace Laboratories, Bangalore.
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Abstract
A wind tunnel investigation was carried out to determine the effect of external stores on the longitudinal stability characteristics of MIG-21 (M) aircraft model . Stores mounted on the aircraft model were two 450Kg ASB II bombs on the two inboard pylons (one on each wing) and one 800 litre drop tank under the fuselage . The tests were carried out in the 1.2m tunnel at Mach numbers 0.6, 0.8, 0.9, 0.95, 1.0, 1.1 and 1.2 and in the incidence range of -5° to +10°. The test Reynolds number based on mean aerodynamic chord of the wing varied from 4.50 million to 6.0 million. Results of the tests were compared with that obtained earlier on the clean MIG-21 (M) aircraft and MIG-21 (M) aircraft with the 800 litre drop tank under the fuselage. Analysis shows with external stores there is an increase in zero lift drag coefficient and a decrease in the lift curve slope and static stability parameter.
| Item Type: | Monograph (Project Report) |
|---|---|
| Uncontrolled Keywords: | MIG-21 (M);Bomb;Drop tank;Longitudinal stability |
| Subjects: | AERONAUTICS > Aerodynamics |
| Depositing User: | Smt Bhagya Rekha KA |
| Date Deposited: | 30 Aug 2012 10:49 |
| Last Modified: | 30 Aug 2012 10:49 |
| URI: | http://nal-ir.nal.res.in/id/eprint/10862 |
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