FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1952
1952 - 2328.PDF
Flight, 29 August 1952 Unpiasticised ^IPULB >*. Acrytie Sheet In Great Britain, clear *l*erspex' for aircraft is supplied in two grades —plasticised and unplasticised. j*- While the mechanical properties of both grades are similar, unplasticised Terspex' has an appreciably higher softening point. Because of this, some of the problems arising from the higher speeds at which today's aircraft fly can be avoided, and unplasticised £Perspex' is now to be preferred for air craft glazing. The optical quality of unplasticised Terspex' is comparable to that of the plasticised grade and its higher softening point does not create any difficulties during shaping. In 1951 approximately 40% of the Terspex' flat sheet used for all applications in Great Britain was unplasticised and was shaped on the same equipment as the plasticised material, operating at slightly higher temperatures. Ministry of Supply Specifications DTD 838 and 846 cover the use of unplasticised'Perspex' in aircraft. 1 I* S.B.A.C. Stand No. 103 cPerspex> is the registered trade mark of the acrylic sheet manufactured by LCI. IMPERIAL CHEMICAL INDUSTRIES LIMITED LONDON, S.W.I F.P.I2
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
