FIRE ENGINEERING
250 Fifth Avenue New York, NY 10001 Tel. (212) 481-5771 Fax (212) 725-3654
EDITOR
Thomas F. Brennan
MANAGING EDITOR
William A. Manning
ASSISTANT EDITOR
Diane Feldman
CONTRIBUTING EDITORS
Gene Carlson
Paul McFadden
Frank L. Fire
Vincent Dunn
Ray Downey
CONSULTING EDITORS
Jack Bennett
Francis L. Brannigan
Hugh J. Caulfield
Glenn P. Corbett
Walt Hendrick
Charles G. King
Edward J. McDonald
Burton W. Phelps
FEATURE DESIGN
Steave Hetzel
ILLUSRATION
Arthur Arias
PUBLISHER
Henry H. Dinneen
DIRECTOR oF BOOK PUBLISHING
Daniel G. Smith
ADERTISING COORDINATOR
Denise M. Kissack
PRODUCTION MANAGER
Mike Paxton, Tulsa
CIRCULATION SERVICES, TULSA
Larry Lofton
Circulation Manager
Pafsy Russo
Manager Paid Circulation
ADERTISING SALES
NORTHEAST: Henry H. Dinneen, Publisher, 250 Fifth Ave., New York, NY 10001 Tel. (212) 481-5771, Fax (212) 725-3654
SOUTHEAST: Harry W. Dill, Regional Manager, 6406 Carmel Rd., Suite 308, P.O. Box 2347, Charlotte, NC 28226 Tel. (704) 542-8893, Fox (704) 542-7357
MIDWEST: Don Johnson, Al Gravenhorst, Gravenhorst & Assoc. Inc., 5901 N. Cicero Ave., Chicogo, IL 60646 Tel. (312) 545-8621, Fox (312) 545-5138
WEST COAST AND SOUTHWEST: Karl Keeler, Western Manager, 915 Stewarton Way, Glendale, CA 91207 Tel. (818) 5004)693, Fax (818) 548-9204
PENNWEIL PUBLISHING COMPANY
P.O. Box 1260 Tulsa, OK 74101 (918) 835-3161
CHAIRMAN
Philip C. Louinger, Jr.
PRESIDENT
Joseph A. Wolking
GROUP VICE PRESIDENT
Joseph T. Bessette
SUBCRIPTIONS: All subscription correspondence should be addressed to Fire Engineering, P.O. Box 1289, Tulso, OK 74101, or call 1 (800) 627-3210. Allow 30 days for change of oddress. Please include both old and new oddresses, and enclose, if possible, an address label from a recent issue, Rates for U.S. and possessions: 1 yr. $21.95, 2 yr. $35.95, 3 yr. $49.95. Canodo and other countries: 1 yr. $34.50,2 yr. $59.50, 3 yr. $78.50. Single copy U$. $3.50, other countries $7.00.
FIRE ENGINEERING (ISSN 0015-2587), is published monthly by PennWell Publishing Co., 1421 S. Sheridan, Tulsa, OK 74112. September 1989, Volume 142, Number 9. Second-class postage paid at Tulsa. Executive, editorial, and advertising offices at 250 Fifth Ave., New York, NY 10001. ©Copyright 1989 by PennWeil Publishing Co. Alt rights reserved. Material may not be reproduced in any form without written permission of the publisher. Fire Engineering is a registered trademark.
POSTMASTER: Send address changes to Fire Engineering, P.O. Box 1289, Tulsa, OK 74101.