FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1941
1941 - 2204.PDF
6 Advertisements. FLIGHT SEPTEMBER 25TH, To those responsible for Aerodrome planning, building and maintenanee H.S4 ui O z Z z 1X1 U ESAVIAN AERODROME HANGAR DOORS and their FUNDAMENTAL ADVANTAGES THEIR GALE WORTHINESS WHEN FACING EXPOSURE TO THE FULL N AT URAL FORCES ,'..,_ x>— - , :.^ These forces must be withstood in three ways:- ; : "-> 1.) The doors must resist maximum wind " -»••:,...•. i- ':- '•:;•' • -l: pressures without damage or strain to :v'.'.-':.: • '•.'. their structure, notwithstanding the ~" . - ' T ;.S; _ . .. _.r . - position they may occupy - open, ^ ,,•••/. /;.. ,' .- - -• :!-: ". .; • : '-S ;-'-.-."• intermediate or closed. •• -* '' -# . '."' r •' -•"••-. 11.) The doors must operate smoothly and freely v^-:¥:* .".-.".„..>'-rtrt-.-:, ;-• • between the open and closed positions -.••• f; :i-;^ :;"^: .-': notwithstanding direct frontal wind - - V -^: ::•-. " ' pressure. See diagram (11). ; ."*]•-•"i;i'- '•.-..• . I JL11.) The same advantages must apply where the ;. -••«' ' T.'.^""1'l: wind is in actual opposition to the :V-''- ^. .;":^™;;- ';' \- -direction of opening. See diagram (111). •'3" ;">• --> One of the major characteristics of the largeESAVIAN hangar door is that it stands "corrugated" even when in the fully closedposition. It has, therefore, inherent in its struc- ture, an ample margin of strength. It avoidsexcessive weight and economises in materials. ESAVIAN doors resist frontal pressure up to50 lbs. per square foot and at seventy miles per ~^L;.u-. hour a gale produces less than half this pressure—say 24 lbs. per sq. foot. The Main ESAVIAN Catalogue goes into this subject fully Have you a copy ? ESAVIAN ^ D O © R S ' FOR AEROPLANE HANGARS ESAVIAN DOORS Controlled by ES.A. Ltd. Designers and Builders of Doors and Partitions for Aeroplane Hangars since 1916. HEAD OFFICE: 181 HIGH HOLBORN, LONDON
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
