Ballistic analysis of firing table data for 155mm, M825 smoke projectile

46 Pages·0.9 MB·English

by  Roberts Neal P.

MEMORANDUM REPORT BRL-MR-3865
R L OTIC FILE COY
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BALLISTIC ANALYSIS OF FIRING TABLE DATA
I FOR 155MM, M825 SMOKE PROJECTILE
Ott
DTIC
SELECTE
NEAL P. ROBERTS
SEPTEMBER 1990
APPROiVED FOR PUBLIC RASE; DISMT.BUTION UNIN t.I .
U.S. ARMY LABORATORY COMMAND
BALLISTIC RESEARCH LABORATORY
ABERDEEN PROVING GROUND, MARYLAND
4
I I .i.
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REPORT DOCUMENTATION PAGE OM[N o OO4-0o188
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1. AGENCY USE ONLY (Le.ve blank) • 2.eREPORT DATE 9J 3 REPORT TYPE A DA-TES COVERED
4, TITLE AND SUBTITLE S. FUNDING NUMBERS
Ballistic Analysis of Firing Table Data for 155mm, M825
Smoke Projectile 1L162618AH80
6. AUTHOR(S)
Neal P. Roberts
7. PERFORMING ORGANIZATION NAME(S) AND ADORESS(ES) 8. PERFORMING ORGANIZATION
REPORT NUMBER
g- SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING MONITORING
U.S. Army Ballistic Research Laboratory AGENCY REPORT NUMBER
ATTN: SLCBR-DD-T BRL-R-3865
Aberdeen Proving Ground, MD 21005-5066
11. SUPPLEPENTARY NCTES
12o. DISTRIBUTION AVAILAB!LITY STATEMENT 12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited
13. ABSTRACT (Maximum 200 vvordS) /
"-7.i ring Table Range Data from Dugway ProviDg Ground, Ur..h,"for the developmental
155mm, M825 Modified Product Improved Smoke Projectile has been reduced and
analyzed. Ballistic comparisons between all base versions of the M825 projectile
as well as with the M483A. projectile are discussed. The concept of Ballistic
Match/Similitude between two rounds is also expounded upon. .,
I /
14. SUBJECT TERMS S. NUMBER OF PAGES
Ballistics 155mm Projectile, Smoke, M825 16
Analysis Developmental '16. PRICE CODE
Firing Table Data
I 17. S[C,,aP,!Tv CLA;SIFICATION 18. SECURITY CLASSIFICATION 19 SECURITY CLASSIFICATION 20. LIMITATION OF ABSTRACI
OF REPORT OF THIS PAGE OF ABSTRACT
UNCLASSIFIED UNCLASSIFIED UNCLASSIFIED SAR
NSN 7540-O¶-280-5500 StandarO Form 298 (Rev 2-89)
UNCLASSIFIED .9...102
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Acknowledgement
The author would like to express his gratitude to Messrs. Jim Matts, Robert
McCoy and Robert Lieske who reviewed this document and whose suggestions
for changes were invariably helpful.
Aooesslon For
lITIS GRAI
DTIC TAB 0l
Unannounced 0l
DTIC Justification
COP' Y
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Table of Contents
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
List of Tables ............ ................................... ix
I. Introduction ............ .................................... 1
II. Review of Previous Testing .......... ........................... 2
III. Results of Test ............. .................................. 2
1. Muzzle Velocity ........... ............................... 2
2. Ballistic ('oeficient ........... .............................. 3
3. Lift Factor ............ ................................... 3
4. Maximum Charge .......... ............................... 3
5. Correction Factors ........... .............................. 3
6. Precision Probable Error ........ ........................... 4
IV. Conclusions. ............. .................................... 4
References ............ ..................................... 29
Distribution List ............. ................................. 31
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p
List of Figures
Figure Page
1 Cut away view of the M825 ....... ............................ 5
2 Base section views - M825 .......... ............................ 0
3 Ballistic coefficient (c) multiplier vs. muzzle velocity ..... ............. 7
4 Lift factor (1) multiplier vs. muzzle velocity ..... ................... 8
5 Ballistic coefficient (c) vs. quadrant elevation - charge 8R ..... .......... 9
6 Lift factor (1) vs. quadrant elevation - charge 8R ..... ............... 10
7 Ballistic coefficient (c) multiplier vs. quadrant elevation - charge 3W ... 11
8 Ballistic coelficieni (c) multiplier vs. quadrant elevation - charge 4W . , . . 12
9 Ballistic coefficient (c) multiplier vs. quadrant elevation - charge 5W . . . . 13
10 Ballistic coeflicient (c) multiplier vs. quadrant elevation - charge 6W . . . . 14
11 Baiiistit coefficient (c) multiplier vs. quadrant elevation - charge 7W . . . . 15
12 Ballistic coefficient (c) multiplier vs. quadrant elevation - charge 7R . ... 16
13 Lift factor (I) multiplier vs. quadrant elevation - charge 3W ............. 17
14 Lift factor (I) multiplier vs. quadrant elevation - charge 4W . ........... 18
1.5 Lift factor (1) multiplier vs. quadrant elevation - charge 5W ............. 19
16 Lift factor (1) multiplier vs. quadrant elevation - charge 6W. ........... 20
17 Lift factor (1) multiplier vs. quadrant elevation - charge 7W ............ 21
18 Lift factor (1) multiplier vs. quadrant elevation - charge 7R ............. 22
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