2) Take a look at the exhaust cap. A genset running full bore vent
cap will be at a 90 degree angle to the exhaust pipe. In Mat's vid,
it looks to be at about 80 degrees or less. A genset exhaust vent cap
will open this wide on idle. Sure, a small detail, but thar be the
devil!
I predicted that would come up !!!!
http://www.mail-archive.com/vortex-l@eskimo.com/msg53977.html
d) You can clearly see the exhaust cap on the generator [01:19] ... lets see : we can calculate the exhaust velocity from the angle of the cap and the strength of gravity and/or the restraining spring and from that we can calculate the power being generated.