A Caltech Library Service

Tests of the 5" HVAR Projectile with Fin and Ring Tails

Doolittle, Harold L. (1945) Tests of the 5" HVAR Projectile with Fin and Ring Tails. California Institute of Technology , Pasadena, CA. (Unpublished)

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


This report covers tests of a 2-inch diameter model of the 5" HVAR Projectile, conducted at the Hydrodynamics Laboratory of the California Institute of Technology. This work was authorized by a letter dated January 31, 1944 from Dr. E. H. Colpitts, Chief of Section 6.1, Office of Scientific Research and Development. The purpose of the tests was to determine the performance of the projectile with the standard 4-fin tail, and to investigate possible changes in the proportion of the fins in order to better the performance or make a more compact design. This report also includes an extensive investigation of the performance of various fin and ring tails applied to this projectile, as well as to similar projectiles of different lengths. It is hoped that the data contained herein may be of use in the design of a variety of bullet-shaped projectiles having either ring or fin tails. The Water Tunnel tests apply only to the projectile moving at subsonic speeds, i.e., during the acceleration period. The attached appendix gives definitions of the terms used throughout the text, as well as other pertinent data.

Item Type:Report or Paper (Technical Report)
Additional Information:Office of Scientific Research & Development National Defense Research Committee Division Six-Section 6.1. Section No. 6-1-sr207-2241 Laboratory no ND-37.
Group:Hydrodynamics Laboratory
Record Number:CaltechAUTHORS:20150721-135934006
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:58966
Deposited On:21 Jul 2015 21:06
Last Modified:03 Oct 2019 08:41

Repository Staff Only: item control page