May 17, 2013
Question: What is a stoichiometric mixture?
Answer: A stoichiometric mixture is the ratio of air to fuel which, when combusted, results in all elements of the mixture being used without any elements left over. Combustible mixtures range from an air-to-fuel ratio of about 8:1 to 18:1. However, a stoichiometric mixture has a ratio of 15:1. While this mixture will result in the fewest combustion byproducts, it may not be advisable to operate your engine at the stoichiometric ratio. Such a mixture may result in the peak exhaust gas temperature. Refer to your pilot's operating handbook for specific guidance on setting your aircraft's mixture. For more on leaning technique, see this article from Flight Training magazine.
Have no-flap landings been part of your practice routine as you work to sharpen your skills?
Exhaust system design is critical to the ultimate power output of an aircraft engine. Regardless of improvements to induction air flow, compression, cylinder porting, or combustion timing, a poorly designed exhaust system will always limit the power that your engine can deliver.
The Bakersfield Flying Club was recently named one of the top 10 flight schools in the country. Flight Instructor William Woodbury talks about what makes the club’s flight training successful, including its Redbird Simulator, a structured training program, and the camaraderie of a club environment.
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