I just finished reading my May issue and I had two questions.
In Burn, Baby, Burn it says the average daily consumption rate of automotive gas in 1999 was around 360 million gallons. Is that in the U.S. alone, or worldwide? Its a statistic Id like to quote to (non-aviation) friends, but I want to get it right.
In Roll your own O2 System on page 5, when you mount the O2 tank in the baggage compartment, doesnt that require an STC or form 337, at least? I have seen the FAA declare an aircraft unairworthy because it had a non-STCd panel mount for a portable GPS, and this seems like a bigger modification to me. It affects the aircraft weight and balance and empty weight, at the ve…