Explain the rules to me one more time.

["Smith, Simon-Pierre" <Simon-Pierre.Smith@PSS.Boeing.com>]

So here's the situation.  I'm in a 121.7 MPH motorcycle streamliner.
P. 93 section D2 says "All streamliners must have a rider controlled fire 
extinguisher system directed to the engine/fuel compartment....   ... refer to 
sect. 111-17"

Section 111-17 says "All cars and enclosed motorcycles must have a minimum of 
one driver controlled fire extinguishing system using a minimum of 5 lbs. of 
extinguishing agent designed and applied to function as driver protection."

So the question is: 
1)  Is the rulebook right and I need 10 lbs of extinguisher - 5 for me, 5 for 
the engine?
2)  Is the rulebook wrong?  Where does the nozzle point?
3)  If the rulebook is right can I use a 10 lb can and 2 nozzles?

I get the feeling I should be asking someone more official.  Should it be A. 
Fogliadini (chief inspector), D.Martin (Motorcycle Tech), D Warner (rules), 
or...?


Thanks,

Simon Smith