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
Steve Hetzel
ILLUSTRATION
Arthur Arias
PUBUSHBI
Henry H. Dinneen
DIRECTOR Of BOOK PUBLISHING
Daniel G. Smith
ADVERTISING
COORDINATOR
Denise M. Kissack
PRODUCTION MANAGER Mike Paxton. Tulsa
CIRCULATION SERVICES, TULSA
Lorry Lofton Circulation Manager Patsy Russo Manager Paid Circulation
ADVERTISING 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 Grovenhorst, Grovenhorst & Assoc. Inc., 5901 N. Cicero Ave., Chicogo, IL 60646 Tel. (312) 545-8621, Fox (3121 545-5138
WEST COAST AND SOUTHWEST: Karl Keeler, Western Manager. 915 Siewarton Way, Glendale, CA 91207 Tel. (818) 500-0693, Fox (818) 548-9204
PENNWELL PUBLISHING COMPANY
P.O. Box 1260 • Tulsa, OK 74101 (918) 835-3161
Philip C. Lauinger, Jr,
CHAIRMAN
Joseph A. Wolking
GROUP VICE PRESIDENT Joseph T. Bessette
PRESIDENT
SUBSCRIPTIONS: All subscription correspondence should be addressed to Fire Engineering, P.O. Box 1289, Tulsa, OK 74101, or call 1 (800) 627-3210. Allow 30 days for change of address. Please include both old ond new addresses, and enclose, if possible, on address label from o recent issue. Rates for U.S. ond possessions: 1 yr., $18.95, 2 yr. $30.95, 3 yr. $42.95. Canada ond other countries. 1 yr. $30.00,2 yr. $52.00, 3 yr. $68.00. Single copy U.S. $3.00, other countries $6.00.
FIRE ENGINEERING (ISSN 0015-2587), is published monthly by PennWell Publishing Co., 1421 S. Sheridan. Tulso, OK 74112. August 1989, Volume 142, Number 8. Second-class postage paid at Tulsa. Executive, editorial, ond advertising offices at 250 Fifth Ave., New York, NY 10001. ©Copyright 1989 by PennWell Pubhshing Co. All 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.