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Sunday, August 13, 2017

The Why of CiES








For pilots and aircraft owners of general aviation aircraft, it’s been a historical challenge to measure fuel level in the air.  Every time a pilot scans their fuel gauges, they want to assess the state of fuel remaining in the aircraft.   To give a pilot  better decision making tools in flight, functional fuel gauges are a minimum requirement.  For this reason the FAA mandated operational fuel gauges for all flight operations.  This capability is critically true if you want to utilize the maximum safe range of your aircraft.

The main problem pilots face is misleading information provided by traditional fuel quantity instrumentation. Even if a pilot knows the fuel gauges to be erratic, they still can lead to bad decision making.  Today, their best option is measuring fuel before flight.  This measurement is  typically made with a wooden stick or glass pipette.  Pilots use this starting known fuel level  and keep track of consumption in flight, but of course, they still run out of fuel.  One key factor missing in this method is knowing exactly among the multiple tanks on the aircraft, just where is the fuel located.    Let's be frank using a stick in a modern aircraft illustrates that we have given up on ever making the fuel gauge work. 

With a bulk of the general aviation aircraft aging beyond 40 yrs, the problem is only get worse over time.



If only there was a better way to measure fuel quantity in the air, then pilots could make better decisions regarding extending flights, balancing tanks or making an extra fuel stop.  This capability would lead to less fuel starvation or exhaustion events and better piece of mind.  With 400,000 general aviation aircraft flying, there is a clear opportunity to meaningfully impact safety on the breadth of worlds general aviation pilots.




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