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Bloody Mary's GN frame...


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#1 Paglesham

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Posted 12 January 2016 - 14:45

Hello all,

I am doing a model of Bloody Mary as a 1/32nd scale slot car and am wondering if she is alone in having a tapered chassis frame as I can't see tapers on standard GN frames or the other GN framed Specials.

Could anyone shed some light on this aspect of Specials please, before I cut brass?

 

Cheers,

Martin



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#2 D-Type

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Posted 12 January 2016 - 16:27

Bloody Mary had a wooden (ash) frame not a GN frame.  Are you thinking of Basil Davenport's GN-based "Spider" perhaps? 



#3 Tim Murray

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Posted 12 January 2016 - 17:02

Bloody Mary's chassis was unusual in having three longitudinal members instead of the usual two. Here's what JVB wrote about it in his Profile Publication on the car:
 

The chassis was made from ash, and it is still free from woodworm. There are three fore-and-aft members, the central one passing between the driver and the power plant, and two cross-members, one at either end. They are joined together with steel angle brackets and bolts, all the holes, both in wood and metal, having been made with a hand-operated breast drill. It was a painful and laborious task.


Richard Bolster, JVB's brother, built his Bolster Special around a GN chassis.

#4 Paglesham

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Posted 12 January 2016 - 17:10

Ah!  I'd assumed all GN frames were ash too!  OK, many thanks, that's told me well enough.

I intend a model of Spider next.

Would I be correct in assuming that Spider II's front end was Frazer Nash?  What with the dipped axle and largish brakes.

 

Cheers,

Martin



#5 Allan Lupton

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Posted 12 January 2016 - 17:47

Bolster in his book of Specials tells us that the post-war version of Spider used a special HRG chassis 3" narrower than standard: that would have had a bowed front axle and 11" brakes.


Edited by Allan Lupton, 12 January 2016 - 17:47.


#6 Sharman

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Posted 12 January 2016 - 17:52

Ah!  I'd assumed all GN frames were ash too!  OK, many thanks, that's told me well enough.

I intend a model of Spider next.

Would I be correct in assuming that Spider II's front end was Frazer Nash?  What with the dipped axle and largish brakes.

 

Cheers,

Martin

GN chassis were constructed from "best laundary iron"



#7 Paglesham

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Posted 12 January 2016 - 17:58

Gents, many thanks.

The knowledge of Spider II will be of interest to a colleague who has announced an interest in building a model of it.

What a remarkable fount of knowledge is here!

 

Cheers,

Martin