Head and Neck Restraint: An active Head
and Neck Restraint System is a
protection ensemble providing an
alternative load path which decreases
both neck stress and head excursion
during a vehicle impact without reliance
on helmet impact into structures or
nets.
Separate Restraining Devices:
Linkages attached to the helmet
which transfer restraining loads
directly to the helmet from the main
device which is secured to the
driver's shoulders, torso, etc.
Methods for attachment of these
linkages to the helmet and main
device shall be prescribed by the
manufacturer.
The main device shall be a
mechanism held tightly to the
driver's torso by seat belts or
other strap systems such that the
reactive load carrying components
move directly with the torso and
controls head, neck, and torso
relative positions during forward or
off-centre impact situations.
Reaction Linkage: The means by
which the head force necessary to limit
displacement of the head with respect to
the torso is reacted. Acceptable
reaction linkages could include load
paths to the torso or to the restraint
webbing. Direct attachment to react
loads to a fixed point or points on a
vehicle structure or restraint webbing
will not be acceptable because of the
potential for torso displacements with
respect to these points. Imposed loading
by the reaction linkage to other areas
of the body should be applied using
approaches demonstrated to be practical
without imposing risk of serious injury.
The Head and
Neck Restraint System must be designed
and manufactured to allow freedom of
movement of head, torso, arms, etc.,
commensurate with operating a race
vehicle under all race and associated
conditions.
Adjustment and
release mechanism(s) shall be accessible
to both the user and to external
personnel such that no additional motion
is required, other than the release of
the seat belts, to disengage the Head
and Neck Restraint System during
emergency situations.
All or any
portion of the Head and Neck Restraint
System pertaining to this specification
shall remain as constructed by the
original manufacturer and not modified.
General
Reg 2770, Safety, Driver / Rider,
Frontal head restraint
If vehicle faster than 7.99 over 1/4
mile or equivalent 1/8 mile 5.10, then
compliant with SFI 38.1 or FIA 8858-2000
or FIA 8858-2010 Mandatory
General
Reg 2780, Safety, Driver / Rider,
Frontal head restraint
Connected in compliance with
manufacturer instructions Mandatory
General
Reg 2790, Safety, Driver / Rider,
Frontal head restraint
Use with neck collar Allowed
General
Reg 2800, Safety, Driver / Rider,
Frontal head restraint
Replaces use of neck collar. Allowed
General Reg 2810, Safety, Driver
/ Rider, Frontal head restraint
If helmet is approved for the fitting of
tether post and eyelets, then assembled
and used in accordance with
manufacturer. Mandatory
General Re 2820, Safety, Driver
/ Rider, Frontal head restraint
Correctly utilised and helmet correctly
connected, from when vehicle is in hands
of Starter until vehicle is on return
road. Mandatory
Class Reg 28605, Safety, Driver
/ Rider, Frontal Head restraint
All Junior Dragster categories A/JD,
B/JD and C/JD competitors, , Commencing
January 1st 2020 you will be required to
wear a head and neck restraint/sysetm
meeting SFI 38.1. the device/system must
be commercially produced by a
manufacturer in the SFI 38.1 head and
neck restraint program. The head and
neck restraint device/system, when
connected, must conform to the
manufacturer's mounting instructions and
it must be configured, maintained, and
used in accordance with the
manufacturer's instructions. Mandatory
Attention: All Junior
Dragster Race Teams
FRONTAL HEAD RESTAINT SYSTEMS (Junior
Dragster)
IHRA - 28/11/2019
Effective Immediately
AS/NZS 1698-2006 or
AS/NZS 1698 - ECE R22-05
- M2010 and M2015
Standards are primarily
used in the motorcycle
industry only. These
helmets do not come with
pre drilled / tapped
mounting ports for the
fitment of the Frontal
Head Restraint System.
Therefore these helmets
will not be used with the Frontal Head
Restraint System. These actions have led
to this Bulletin.
IHRA Australia Technical
Department wish to
advise all Junior
Dragster Teams that an
updated helmet MATRIX
has been made available
on the IHRA Australia
website.
http://www.ihra.com.au/helmets.html
Note: Motorcycle Helmets
are strictly prohibited
for the use with the
Frontal Head Restraint
System.
IHRA Australia
TECHNICAL DEPARTMENT
