PASSENGER
SIZE
WORKGROUP
TOWN HALL
8 TH JANUARY 2015
LES LINKLATER
WELCOME AND
INTRODUCTIONS
OUTLINE
Why measure ?
What to measure ?
How to measure ?
Proposed measurement strategy.
Expected seating layouts (to be confirmed).
PASSENGER SIZE
55.9 cm or below
Above 55.9cm
WHY MEASURE?
The CAP1145 directive indicated that
from 1 April 2015 the Civil Aviation
Authority would prohibit helicopter
operators from carrying passengers on
offshore flights whose body size,
including required safety and survival
equipment, is incompatible with pushout window emergency exit size.
This measurement programme
addresses this issue by providing the
information necessary to designate XBR
from non-XBR individuals.
WHAT TO MEASURE?
• Shoulder breadth is accepted as the
anatomical dimension most limiting
egress through a confined space.
• It is suitable for measuring both men
and women.
• It is more reliably measured than
other measurements.
• Measuring against the skin surface
is more reliable than over clothing.
• Measuring without compressing the
surface is more reliable than
exerting a force to reduce the
measurement.
THE INSTRUMENT
It features a large area on the caliper branches
for measuring the convex surface of the
shoulder, which makes measurement more
straightforward
The measuring Instrument is a SECA
measuring rod model 207, a form of ‘Large
sliding caliper’.
Step Change in Safety has
already ordered 300 on behalf
of industry and can be
purchased from us at Cost +
shipping and handling
(-30% OEM cost)
THE PROTOCOL
Definition
The linear distance between the most lateral points on the skin
surface R and L deltoid muscles.
Participant presentation and position
Male participants may be measured bare-chested; female
participants are required to wear a sleeveless top or equivalent
garment which provides access to measuring the deltoid muscles.
Participants stand erect with feet together and arms against the
sides, with hands in the mid-prone position (i.e. thumbs pointing
forwards) resting on the lateral thighs.
Measurer position
The measurer stands in front of the participant and observes the deltoids at eye level.
Measurement
Viewed directly from the front, identify the most lateral point of the protrusion of deltoid muscle as
observed on L and R sides. Opening the large sliding caliper beyond the anticipated distance, slowly
move the branches towards one another until they rest on the skin surface. Record the measurement to
0.1 cm precision after a normal expiration.
Stewart, A. D. & Hume, P.A. (2014). Bideltoid Breadth Measurement, J.E.
Lindsay Carter Kinanthropometry Archive
https://www.sprinz.aut.ac.nz/clinics/j.e.-lindsay-carter-kinanthropometryclinic/archive
RECORDING THE
MEASUREMENT
• Ensure the appropriate form is to hand, with preinformation already completed (including VANTAGE
numbers)
• Beginning at measure 1: transcribe the measurement,
filling in one digit per box
• Note the measurement is in cm, and recorded to 0.1 cm
• Continue to measurement 2
• Calculate if this is 1% greater or lesser than measurement
1, and determine if a third measurement is required.
• Perform a third measure and transcribe as before
RECORDING THE RESULT
USING THE PRO-FORMA
MEASUREMENT
STRATEGY
Subject Matter Expert
Trainer
Measurer
Measurer
Bideltoid Measurement
Trainer
Measurer
Trainer
Measurer
Trainer
Measurer
Trainer
Measurer
Measurer
Trainer
Trainer
Trainer
Measurer
Bideltoid Measurement
TRAIN THE TRAINER
EVENTS
7 dates agreed with Dr Arthur Stewart / RGU – Subject Matter
Expert
• 12th January (pilot)
• 16th January x 2
• 23rd January x 2
• 30th January x 2
Can be booked via the Step Change in Safety website /
contact scevents@stepchangeinsafety.net
RUNNING THE
TRAINING
• Ideally 7-8 candidates
• Lecture, Measurement, Coaching and Fault-correction
• Independent measurement practice
• Trainer measures everyone and enters data
• Exam procedure explained
• Exam undertaken, Calculate all the results
• Announce the PASSES and FAILS
• Provide the opportunity for further measurement
• Complete the required measurer course submission sheet
so certificates can be created
UNDER THE AUSPICES OF THE PASSENGER SIZE WORKING
GROUP, THE HELICOPTER SAFETY STEERING GROUP, AND
STEP CHANGE IN SAFETY
T
H I S
I S
T O
C E R T I F Y
T H A T
_________________________
Has qualified as an
ACCREDITED TRAINER OF SHOULDER BREADTH MEASURERS
ON THE
_____________ 2015
LICENCE NUMBER SCSXBRT01
Criterion Anthropometrist
with the
International Society for the Advancement of Kinanthropometry
Valid for four years from the date above
UNDER THE AUSPICES OF THE PASSENGER SIZE
WORKING GROUP, THE HELICOPTER SAFETY
STEERING GROUP, AND STEP CHANGE IN SAFETY
T
H I S
I S
T O
C E R T I F Y
T H A T
_________________________
Has qualified as an
ACCREDITED MEASURER OF SHOULDER BREADTH
ON THE _____________ 2015
LICENCE NO. SCSXBR01
Criterion Anthropometrist
with the
International Society for the Advancement of Kinanthropometry
Valid for four years from the date above
KEY POINTS - RECAP
Communicate with your workforce regarding the
measurement strategy
Contact / Engage with your Occupational Health
professionals to make sure they are aware of the train the
trainer sessions be able to train the measurers (medics).
Communicate with your Medics. Make sure they are fully up
to date and able to receive the training from the right people
And Engage with Step Change in Safety with regard to
requirements for callipers
OPEN
DISCUSSION