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Old 6 Jan 2011, 16:14 (Ref:2811971)   #11
FISCracer
Racer
 
Join Date: Feb 2007
Wales
Surrey
Posts: 241
FISCracer should be qualifying in the top 10 on the grid
Web link to new regs is

http://argent.fia.com/web/fia-public...10.12.2010.pdf

The key changes seem to me to be:

5.15.1 All cars of Period F onwards with a roll bar must be equipped with 6-point harnesses conforming to Article 253.6 of the current Appendix J.


Fuel filler caps and necks:
When a car is fitted with an exposed fuel filler cap, the filler neck must be fitted with a one way safety valve fitted between the filler cap and the fuel tank(s).
5.5.7 Any fuel lines or tubes that may carry fuel passing through the driver/passenger compartment must be protected and, if non-metallic, must be internally or externally metal braided hydraulic pressure hoses or fuel lines complying with FIA Appendix J Article 253 3.2. They may only be joined by screw sealing joints or vehicle manufacturer approved joints.


5.13 Rollbars / rollcages
5.13.1 Even when the present article does not demand them, rollbars are strongly recommended for all other historic cars where appropriate.
5.13.2 Requirements
(a) Periods A to E: rollbars/rollcages as specified below are recommended, except for cars originally fitted with rollbars/rollcages, which must have rollbars meeting or exceeding the specification used on the car when it was used in competition in its period.
(b) For all other periods: rollbars/rollcages providing adequate protection are obligatory. These rollbars/rollcages must be built according to the specifications set out in this article. Roll bars/roll cages in all open cars must be a minimum of 5 cm above the top of the driver’s and co-drivers’s helmets at all times.
(c) A period specification roll bar or roll cage is defined as one that was used in competition in period on the actual make and model of car. The competitor must provide evidence of the period specification when requested.
5.13.3 When a rollcage is fitted, the rear seat may be modified or removed from the car.
5.13.4 Aluminium cages are banned in any period unless they are an original integral part of the car’s structure (e.g. Porsche 908, 917). When a safety cage made of a light alloy is described on a homologation extension applicable to the car concerned or was part of the original specification, the original design of this cage may be replicated provided the material used is steel, in accordance with Appendix VI A or B, and the original dimensions of the tubes are maintained.
5.13.5 Specifications
The specification of the roll bar/roll cage installed must be detailed on the Roll Over Protection System Description document which must be attached to the car’s HTP.
(a) For Period F Formula 1 cars (1/1/1961 - 31/12/1965), if the safety rollbar / roll cage is an integral part of the vehicle’s structure, it may be used in place of the one stipulated elsewhere in this article 5.13.
(b) For Periods F and GR, single-seat and two-seat racing cars must be fitted with a rollbar / roll cage conforming to period specification (if a rollbar / roll cage was required) or Art. 277 of Appendix VI A to this regulation.Rearward braces may be replaced (or complemented) by forward-facing ones, which must be attached to the main hoop at a distance from its summit of not more than one third of the distance between its summit and its bottom mounting point; such braces must not impede the exit of the occupants from the car.

8.3.2.1.3 Roof reinforcement :
Compulsory for cars CT and GTS over 2000 cc
The upper part of the safety cage must comply with one of Drawings K-19, K-20 or K21.
The reinforcements may follow the curve of the roof.
For competitions without co-drivers, in the case of Drawing K-19 only, only one diagonal member may be fitted but its front connection must be on the driver’s side.
The ends of the reinforcements must be less than 100 mm from the junction between rollbars and members (not applicable to the top of the V formed by reinforcements in Drawings K-20 and K-21).
8.3.2.1.4 Windscreen pillar reinforcement :
Compulsory for cars CT and GTS over 2000 cc
It must be fitted on each side of the front rollbar if dimension “A” is greater than 200 mm (Drawing K-22).
It may be bent on condition that it is straight in side view and that the angle of the bend does not exceed 20°.
Its upper end must be less than 100 mm from the junction between the front (lateral) rollbar and the longitudinal (transversal) member (see Drawing K-54 for the measurement).
Its lower end must be less than 100 mm from the (front) mounting foot of front (lateral) rollbar



Personally I don't have too much of a problem, although re-doing HTP every 5 years will make a lot of work and money for some people.

6 point harnesses are essential if you ask me. I guess we all know what happened to Barry SS at Le Mans in his MGB a few years ago with a 4 point harness - submarined and broke his sternum.

I'm with Jeremy on Ridgard seats. Not just comfortable but better in an old car without crumple zones as the seat deforms rather than breaks. I have seen several people injured from broken seat backs in modern fibreglass seats in older cars.

Richard
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