Aerospace Engineering Online: Technology update - New restraint system for improved passenger safety Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Technology update
New restraint system for improved passenger safety

The Inflatabelt system is installed by attaching to the seat at existing seatbelt-mount locations.
The Direct-Thermal Inflator fills the system with cool, clean, particle-free gas. It deploys from the passenger's lap, rather than towards the head as with an automotive airbag.
The inflatable restraint vents mainly nitrogen and water vapor immediately following the crash, allowing the passenger to just simply unbuckle the belt and exit the aircraft.
A new inflatable restraint system called Inflatabelt has been developed by BFGoodrich Aerospace's Aircraft Evacuation Systems Division for the increased protection of passengers of all sizes ranging from small children to large adults. Unlike an automotive-style airbag, which acts as a cushioning barrier between the occupant and a fixed object during a crash event, the Inflatabelt system is designed to position and restrain passengers in their seat, limiting their forward movement during a crash. It deploys from the passenger's lap, rather than towards the head as a standard airbag would. By pretensioning the seatbelt, the restraint system removes the slack in the seatbelt and restrains the upper body, eliminating passenger head contact with forward seats and fixed objects during a crash.

The Inflatabelt system, which meets the new 16-g regulations, also distributes crash loads over a much larger area, so that dynamic forces on the passenger as well as the loads on the seat are reduced significantly. By decreasing the instances of upper-body injuries, the system allows passengers to be alert and conscious following a crash, enabling them to quickly exit the aircraft.

Upon triggering the system, BFGoodrich's Direct-Thermal Inflator (DTI) is used to fill the passenger restraints with cool, clean, particle-free gas. The low temperature at which the system inflates allows for very thin, lightweight fabrics to be used. The entire Inflatabelt system weighs only about 1.5 lb. The DTI also eliminates the potential hazard for burns experienced with traditional automotive airbag inflators. The inflatable restraint vents mainly nitrogen and water vapor immediately following the crash, allowing the passenger to unbuckle the belt and exit the aircraft.

The Inflatabelt system is installed by attaching to the seat at existing seatbelt-mount locations. Its modular design allows quick removal and installation, which is required about every five years for replacement.

According to BFGoodrich, many advanced technologies were used in developing the system. The company used a crash dynamics modeling tool, called MADYMO, to develop an advanced simulation of the Inflatabelt during an aircraft crash, allowing it to bring an optimized system to certification.

Frank Bokulich








The Inflatabelt distributes crash loads over a much larger area than conventional seatbelts.

The BFGoodrich system restrains the upper body, eliminating head contact with forward seats and fixed objects during a crash.
Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.