Bye Aerospace Completes Critical Design Phase; 330 e-Flyer Units Reserved Earlier this month Bye Aerospace announced that it completed the Critical Design Phase for the e-Flyer all-electric aircraft. This essentially locks in the final design for the aircraft as what will be represented as the production model. A critical design review ('CDR') is a multi-disciplined technical review to ensure that each eFlyer 2 primary system can proceed into fabrication, demonstration and test. "I’m grateful to our remarkable team of engineers, designated engineering representatives, our development partners and suppliers for their support in the engineering progress of eFlyer 2," said George E. Bye, CEO of Bye Aerospace. "This important upcoming aviation industry milestone is a reflection of the team’s incredible dedication and hard work."