FIRE ENGINEERING
Park 80 West Plaza Two, 7th Floor Saddle Brook, NJ 07662 Tel. (201) 845-0800 Fax 201) 845-6275
EDITOR William A. Manning
MANAGING EDITOR Diane Feldman
TECHNICAL DIRECTOR Thomas F. Brennan
CONTRIBUTING EDITORS
Gene Carlson Richard A. Marinucci
Ray Downey Paul McFadden
Vincent Dunn Robert Obermayer
Frank L. Fire Ed Spahn
Francis X. Holt_Curt Weldon
CONSULTING EDITORS
Jack Bennett Walt Hendrick
Francis L. Brannigan Charles G. King
Hugh J. Caulfield Edward J. McDonald
Glenn P. Corbett Burton W. Phelps
Gerald L. Grey
PUBLISHER_Henry H. Dinneen
DIRECTOR OF
BOOK PUBLISHING Daniel G. Smith PRODUCTION
MANAGER_Mike Paxton, Tulsa
FEATURE DESIGN Steve Hetzel
CIRCULATION SERVICES, TULSA
Larry Lofton Patsy Russo
Circulation Mgr. Mgr. Paid Circulation
PENNWELL PUBLISHING COMPANY
P.0. Box 1260 • Tulsa, OK 74101 (918) 835-3161
CHAIRMAN Philip C. Lauinger, Jr.
PRESIDENT_Joseph A. Wolking
GROUP
VICE PRESIDENT Joseph T, Bessette
SUBSCRIPTIONS: All subscription correspondence should be addressed to Fire Engineering, P.0. Box 1289, Tulso, OK 74101, or call 1 (800) 752-9768. Allow 30 days for change of oddress. Please include both old and new addresses, and enclose, if possible, on address label from a recent issue. Rates for U.S. and possessions: 1 yr. $21.95, 2 yr. $35.95, 3 yr. $49.95. Canada and other countries: 1 yr. S34 .50,2 yr. $59.50, 3 yr. $78.50. Single copy U.S. $3.50, other countries $7.00.
RRI ENGINEERING (ISSN 0015-2587), is published monthly by PennWell Publishing Co., 1421 S. Sheridan, Tulsa, OK 74112. September 1990, Volume 143, Number 9. Second-class postage potd at Tulsa and additional mailing offices. Executive, editorial, and advertising offices at Park 80 West, Plaza Two, 7th Floor, Saddle Brook, NJ 07662. ‘Copyright 1990 by PennWell Publishing Co. All rights reserved. Material may not be reproduced in ony form without written permission of the publisher. Fire Engineering is a registered trademark.
POSTMASTER: Send oddress changes to Fire Engineering, P.O. Box 1289, Tulsa, OK 74101.
