BelArgUSA--- I think I've read that the mechanical checklist concept/idea originated in the USAF tanker/transport fleet?---
many interesting posts lately from you--- enjoy your retirement---I hope you don't forget and flare the cub at 50' though
Se cuida usted--despues de trabajar tan largo tiempo en las aerolineas--Usted es un enciclopedia de aviacion verdadero
PA