The $20/hour Cessna 172 experiment—Update
With the FAA’s decades-long crusade to eliminate leaded avgas and lower noise, we mistakenly believed the agency would at least consider, if not welcome, any feasible solution. After all, we had a flying prototype that proved the concept and a 60% lower cost that was needed for a solution to be adopted. We soon learned that the FAA was less than enthusiastic about certified aircraft transitioning to experimental, regardless of their age or condition.