Old 02-06-19, 11:35 AM
  #55  
Johno59
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Join Date: Oct 2016
Location: Cambridge UK
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Bikes: 2x pre-1934 Humbers, 1932 Raleigh Tourist, 1946 Raleigh Lenton, 1947 Grand Prix Raleigh, 1949 Golden Arrow, 1950 Robin Hood, 1956 Claude Butler, 1973 Raleigh Wayfarer, 1984 Holdsworth, 1985 EG Bates Lo-pro Funny TT Bike, 1980 Alan,3 x custom TT bikes

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Glue and fabric

All carbon fiber composites - whether on a plane, missile, bike, train or automobile use resin and a carbon fiber matrix. The application is very similar to dope and silk used by the Wright brothers.
The difference in spec is the control of the the tolerance on the different layers you apply to fabricate a omponents. As you track the up from missile boosters to a $ 100K ​​​​​sports car the acceptable tolerance on the resin applied to the carbon in grams per square meter gets smaller and smaller. Likewise the weight of the carbon weave or tynes in a Unidirectional fabric get tighter and tighter.
Aircraft are massively over built for this reason whereas the drive shaft on a high performance super car goes right to the edge - coz the designer knows the spec for the material is so tight they don"t need the same safety margin.
Bikes use a aerospace spec level of carbon prepeg and much is done by hand, a fabrication method the aerospace industry has largely left behind owing to its lack of quality
BMW Audi , Mercedes etc wouldn't risk an ashtray made of military/aerospace spec carbon fiber composite.
You may argue that is an absurd argument. BMW will then ask "How many planes will use your composites this year? You answer '1000 units ! ". They will then say' We will build 4 million units' this year mein klein aschloch! ' and that will be the end of the argument.

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Last edited by Johno59; 02-06-19 at 12:35 PM.
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