For anyone remotely interested in vehicle weight reduction, I have just compared the Elanâs glass to polycarbonate. Original glass weighed 18kg, add the rubber seals and it tops out at just over 20kg. Allowing for the front and rear fixings the polycarbonate replacements weigh 5kg, so around 15kg saving.
Iâm not sure if itâs allowed for App K, havenât checked. I might do if the car comes in overweight.
Now that Restopowerâs Elan speedster is on hold you are the only kid on the block.
The Restopowerâs Elan looks an interesting project, although I am not sure how they are going to fit the Sadev box without serious mods to the chassis. I hope that it gets resurrected as it looks an interesting project and it would be fun to compare notes and see an Elan done by professionals.
5.12.1 Windscreens for all Touring, CT, GT and GTS cars must be of
laminated glass. In exceptional cases, waivers may be granted by
the FIA eligibility delegate for the use of rigid transparent plastic
for the current season if laminated screens are unobtainable for the
model concerned. Other cars may use rigid transparent plastic.
Cockpit
13.1 Windscreens
13.1.1 Must be made of laminated glass unless a waiver for the use of an
alternative material has been obtained for the specific car.
13.1.2 For open cars built before 1955, windscreens are free provided
that they extend at least 20cm vertically above the scuttle top
surface.
13.1.3 For cars built between 1955 and 1961 inclusive windscreens must
have the following minimum dimensions:
13.1.3.1 vertical height above scuttle top surface: 20cm,
13.1.3.2 width: 90cm up to 1000cm3, 100cm over 1000cm3.
13.1.4 Modifications to windscreen accessory parts (frame, fastenings,
seals, etc.) are not authorised.
13.2 Rear windows, door windows and quarter lights must be of safety
glass or a rigid transparent material at least 4mm thick (FAA
type material, e.g. Lexan 400 is recommended). If the original windows
are replaced, the window mechanism may be removed.