| Rigging Advisory Circular RAC501A
Please note that this is a text only reproduction of this document and you should always refer to the original document linked below for a full reference.
|Link to original||Text is reproduced here for your convenience, for a full reference please see the original document.|
|Subject||APF Policy for the use of 'Blast Handles' on personal parachutes|
|Issue||01 November 1985|
|Authority||Director (Rigging) Australian Parachute Federation|
|Distribution||All APF Packers
All APF Riggers
Australian Parachute Manufacturers & Importers
APF Packing Manual Owners
All APF Instructors
Part No 5705081
Part No 62B4253
The ‘Blast Handle’ is correctly identified as ‘The Anti-Wind Blast’ handle. It was developed as a parachute release handle for manual release on military ejection seat parachutes. It clips directly onto a MS70104 ripcord housing.
The handle is designed to be difficult to remove from the housing (15 - 20 lbs pull).
For sport parachuting use it became necessary to modify the handle by drilling out the centre post to allow it to be pulled at an angle to the housing. The following sectional views show how the housing should be modified for sporting use.
While blast handles have not directly caused a fatality they have been cited in a number of fatalities where parachutists seemed unable to locate or pull a blast handle ripcord.
There are ripcord handles available which are easier to identify, easier to grasp and easier to pull from any direction than the blast handle.
The blast handle post MUST be drilled out for it to be suitable for sport parachuting use.
The use of blast handles is to be discouraged on personal parachutes.
Where possible a blast handle is to be replaced with a Martin Baker or Trapezoidal handle.