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Jimmy19650 Occasional Poster Location: Wodonga Registered: May 2005	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing Mon, 08 August 2005 06:05 Hi all, I have been making FRP hatches for sprinters for a while. A glass reinforced hatch will weigh about 5-6kg (including glass)depending on thickness of glass reinforcement. This will save you about 4kg over a standard hatch. A carbon hatch will weigh about 3-4kg and will save about 5-6kg over standard. Most of the weight is in the glass, but unfortunately, I have been informed that lexan or perspex is illegal for rego. You need to remember that an FRP product needs to be thicker for the same rigity as steel unless you use carbon, lots of shape, or sandwich laminates. The weights I have quoted is for a hatch that is of similar strength and rigidity as the standard one. You can of course not worry about strength and stiffness and make a very light hatch that will probably crack or pop the glass out. Realistically, there are only 3 advantages for using FRP hatches, 1. No rust 2. Readily available (if you have a mould) 3. Easy to mould wings vents etc into. There is no great weight saving between an FRP hatch and a steel hatch if you are using the original glass. Most of the weight saving is in the wiper motors, struts etc. [Report message to a moderator]

	Subject	Poster	Date
	FS: Fibreglass Rear bare hatches for AE86 No Wing	AE86T	Fri, 05 August 2005 03:07
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	DRFTAE86	Fri, 05 August 2005 09:16
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	mc68	Fri, 05 August 2005 09:31
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	StockAE86	Fri, 05 August 2005 09:40
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	bubbles	Fri, 05 August 2005 11:45
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	GTV AE86	Fri, 05 August 2005 12:32
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	DRFTAE86	Fri, 05 August 2005 13:43
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	AE86T	Sun, 07 August 2005 03:46
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	ae86drift	Sun, 07 August 2005 05:16
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	monkeymajik	Sun, 07 August 2005 21:32
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	GTV AE86	Sun, 07 August 2005 22:14
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	DRFTAE86	Mon, 08 August 2005 01:12
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	Jimmy19650	Mon, 08 August 2005 06:05
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	Jimmy19650	Mon, 08 August 2005 06:43
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	AE86T	Tue, 09 August 2005 02:40
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	Bobski	Tue, 09 August 2005 05:36
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	Sam_Q	Thu, 11 August 2005 09:14
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	AE86T	Thu, 11 August 2005 10:10
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	Sam_Q	Thu, 11 August 2005 10:23
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	AE86Trader	Wed, 17 August 2005 01:47
	Re: FS: Fibreglass Rear bare hatches for AE86 No Wing	Sam_Q	Wed, 17 August 2005 06:23

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