Mach E, Im so glad you mentioned simple single engine aircraft, I recently saw a checklist for an unpresurised, fixd gear S/E aircraft, it was fourteen pages in total! The author of this document then proceeded to start up and taxi with the engine cover still on, didnt do the engine, {160H/P Lyc} or the cover any good.As for the turbo prop checklist which prompted my rant Im now told by the same young man that its a rip- of the one used by production test pilots at the plant where the aircraft are built and contains many items of interest only to the QA folks, which are totally pointless during normall revenue flights, just what you need during a ten sector day! Glad to read Im not the only one who finds this stuff to be total horse feathers!