Wind Tunnel Tests on Projectile Models in 0 .3M Trisonic Wind Tunnel

This Document Gives The Results Of Tests Conducted For The Armament Research And Development Establishment, Pune On 2/5th Scale Models Of Two Modified Projectiles In The 0 .3M X 0.3M Trisonic Wind Tunnel Of The National Aeronautical Laboratory, Bangalore . The Models Designated As Projectile I And Projectile II Were Tested In The Mach Number Range Of 0 .6 To 3.0. Angle Of Attack Range Of -4 0 To +150 Was Covered In Steps Of 20 . The Forces And Moments On The Models Were Measured Using A Six Component Internal Strain Gauge Balance. Schlieren Photographs Were Also Taken To Study The Shock Wave Pattern On The Models