Lets get serious
All the ex-air cadets here know that there is only one plane for the job. Robust enough to deal with a weekly procession of puking teenagers yet simple enough that it only needs started with a couple of big shotgun cartridges and some WD40. Repairs usually carried out with a roll of duct tape and some cable ties (or plain old Sellotape for the ones I flew in).
Gentlemen I give you the - de Havilland Canada Chipmunk