Accession Number:

ADB006986

Title:

Piranha Wind Tunnel Test

Descriptive Note:

Final rept. 1 Oct-31 Oct 1974

Corporate Author:

AIR FORCE ARMAMENT LAB EGLIN AFB FL

Personal Author(s):

• Weber, Paul A.

Report Date:

1975-05-01

Pagination or Media Count:

30.0

Abstract:

This report presents results from wind tunnel tests of several air duct-turbine wheel designs for the Piranha air-deliverable underwater mine BLU- 94. The tests were conducted to determine the optimum turbine wheel blade angle for maximum rotational speed and acceleration, and to verify that the highest performance obtained would be sufficient to operate a portion of the mines Safety and Arming mechanism. Maximum rotational speed developed with the optimum blade angle of 40 deg was 147 revolutions per second at an angle of attack of 10 deg and a free stream speed of 60.5 msec. Safety and arming mechanism function was obtained twice during the test.

Descriptors:

• *AERIAL MINES
• *SAFING AND ARMING(ORDNANCE)
• *TURBINE WHEELS
• *UNDERWATER MINES
• ACCELERATION
• ANGLE OF ATTACK
• ANGULAR ACCELERATION
• DUCTS
• EXPERIMENTAL DATA
• FREE STREAM
• FUZE FUNCTIONING ELEMENTS
• MINE COMPONENTS
• MINE FUZES
• MOMENT OF INERTIA
• OPTIMIZATION
• ROTATION
• TORQUE
• TURBINE BLADES
• VELOCIMETERS
• VELOCITY
• WIND TUNNEL TESTS

Subject Categories:

• Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE