Box tail

1.(Aëronautics) In a flying machine, a tail or rudder, usually fixed, resembling a box kite.
References in periodicals archive ?
5 tonne box tail lifts, 18 tonne box and curtain side tail lifts with sleeper cabs, and 44 tonne tractors units with space cabs.
The Barling featured a triwing, a box tail, and six Liberty 12-A engines--four tractors (pullers) and two pushers mounted midwing, directly behind the inboard tractor engines.