Rising Air Glider Repair
  Bill Anderson
  P.O. Box 620
  3171 West 3175 North
  Moore, Idaho 83255
  Call before shipping for turn around time
  land line: 208-554-2243
  bill@risingair.com
  www.RisingAir.com

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Porosity Test

March 27, 2003 

King Mountain Gliders
Highway 93
Moore, ID

Dear Sir or Madam:

Speedtech Instruments, as a premier supplier of portable electronics and wireless weather stations, carries a comprehensive range of items designed for the outdoor sector and weather enthusiasts. As a free flight club, we would like to introduce our newest product, the porosimeter, manufactured by JDC Electronic S.A., in Switzerland, as well as familiarize you with our windmeters and weather stations.

The porosimeter MK1 is an easy-to-use, reliable, and very precise porosimeter, which was developed by JDC Electronic, following a high demand from free flight lovers, mainly for security purposes. This instrument very quickly became the standard in porosity measurement and is now used and appreciated worldwide. We are including the document, “Three Steps For Canopy Maintenance,” developed by the nonprofit Parafoils Standards Institute of America that is based on the use of the MK1 porosimeter.

Purpose of Porosimeter MK1:

Enables a precise amount of air volume to go through a piece of cloth in order to measure its porosity. Principle: To measure the time necessary for 0.25 liter of airs under 4hPa pressure to go through 40 cm2 of cloth.

 Application:

1. Quick test of cloth porosity used, for example, in paraglider, spinnaker & balloon manufacture.

2. Measure cloth degradation in order to warn users of properties and security decrease of its canopy.

3. Evaluation of the present and resale value of second-hand paragliders.

4. Laboratory studies of cloth wear (coating adherence, etc.).

 

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Copyright 2016 Rising Air
  Bill "Bad Bones" Anderson
  P.O. Box 620
  3171 West 3175 North
  Moore, Idaho 83255
  Call before shipping for turn around time
  land line: 208-554-2243
 
bill@risingair.com
  www.RisingAir.com