# Presentation: 893052

## Child Restraint Research

- Transport Canada
- Transportation Development Centre
- Aastra Aerospace

## Project Evolution 

**Project Evolution **

**Joint FAA/TC testing in 1989**
**Recommendation:  R & D dedicated to the design of a restraint system for infants and small children traveling in aircraft be conducted without delay.**
- Objective was to determine the _feasibility_ of developing a CRS which meets the needs of the users, the airline industry, and the regulators.

## Drivers

**Request for approval of “Belly Belt”**
**Operational problems associated with CRS**
**Search for innovative solution**
**Child Safety System - not necessarily a “seat”**

## Project Initiation 

**Project Initiation **

**RFP**
**Results - No CRS manufacturers**
**Successful bidder - AASTRA**
**Aerospace Engineering - since evolved into a telecommunications company**

## Design Decisions

**Who provides?**
**What standard to use?**
**Modal vs Multi-modal**
**Aviation Standards or Automotive Standards - for materials & machining**
**Certification - Self certified or approved? **

## Standard

**CMVSS 213 used in absence of aviation specific standard**
**CMVSS 213 similar to FMVSS 213 except for more conservative head excursion limit of 28.4 inches (720 mm) vs 32 inches (813 mm) - generates a requirement for a top tether**
**Additional requirements for aviation environment**

## Fit
Function
eFFectiveness

**Function**
**eFFectiveness**

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## AVIATION VS AUTOMOTIVE

**WIDTH BETWEEN ARMRESTS**
**BASE - DIMENSIONS**
**SEAT PITCH**
**INSTALLATION METHODS **
**INSTALLATION FREQUENCY**
**ANCHORAGE POINTS**

## Additional Requirements

**Simple and obvious to install in a/c**
**Easy and quick to adjust**
**Compact - minimize stowage space**
**Easy to maintain**
**Compatible with aircraft seats**
**Effective in aviation environment**
**Must provide occupant protection**

## PROJECT EVOLUTION

**PROJECT EVOLUTION**

**MODULAR FLOTATION CONCEPT **
**NON-FLOATING, FOLDING SYSTEM, (MARK I PROTOTYPE)**
**OPTIMIZED FOLDING SYSTEM (MARK II PROTOTYPE, ACSS)**
**MARK II A**

## WEDGE

**WEDGE**

**BACK**

**BASE**

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## 95 tests - 3.4 inches 

**95 tests - 3.4 inches **
**fwd of CRP**

- CRP

## DYNAMIC TESTS

## DYNAMIC TESTS

## DYNAMIC TEST RESULTS

## DYNAMIC TESTS

## 1997 CAMI TESTS MKIIA

- TEST SERIES
- FWD FACING - 3 RUNS
- AFT FACING  - 2 RUNS
- DIFFERENCES IN TEST PROCEDURE
- SEAT BACK POSITIONING
- TYPES OF HARNESSES
- ANCHOR POINTS ! ! !

## 95 tests - 3.4 inches 

**95 tests - 3.4 inches **
**fwd of CRP**
**97 tests - 4.6 inches**
**fwd of CRP**

- CRP

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## Example of poor interface between CRS and passenger seat

**Example of poor interface between CRS and passenger seat**

## 1998 CAMI TESTS  - MKIIA PRODUCTION VERSION

**TEST SERIES**
**FWD FACING**
**AFT FACING**
**DIFFERENCES IN TEST PROCEDURE**
**PAX SEAT BACK - PRE-TENSIONING  **

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## RESULTS

- Objective was to determine the _feasibility_ of developing a CRS which meets the needs of the users, the airline industry, and the regulators
- Preliminary results indicate the objective is feasible
- Where to from here?

## STATUS 

- Intellectual Property rights recovered
- 25 devices manufactured
- Concurrent activity - development of a standard suitable for aviation - currently a SAE S-9 activity  - AS5276
- Validation testing for AS 5276 modifications to CMVSS test bench

## Proposed New SAE Aerospace Standard

**(AS 5276A  ...  in progress)**

**SAE S9 Committee developing an AS for child restraints**
**  ****used with transport airplane passenger seats.**
**Based on test procedures and methods of FMVSS-213,**
**  ****with modifications to test fixtures.**
** ****Specifies a 16g test condition, airplane type belts**
**  ****and belt anchor locations.**
**Pass/fail criteria to limit head excursion to 26 inches**
** ****forward of seat CRP.**

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