21710 Don Smith B-17 (3/4″) 138″ + Tailwheel

SKU: 21710 Categories: ,


Giant upper mechanism with 3/4″ diameter oleo struts. Axles installed at angle specified by manufacture.  Tail wheel unit included.

If you are going to purchase an air support system, you will need a super air system which will provide you with 32 cu inches of air.

Please select from the choices below to complete your retract system.   Select the Deluxe 4 Way Valve (1410E) for realistic air operations which provide the modeler infinite speed adjustments. If you select electric retracts, you can upgrade to our Deluxe Controller and get the electronic door sequencer with selectable door open or door close modes when the gear are down plus 1 or 2 landing lights.

To view a sample of our electric landing gear, please click here.


Additional information

Weight 4 lbs
Dimensions 12 x 8 x 4 in

Deluxe 4 Way Air Valve replaces Standard Valve, 20" Heavy Duty Lead, 40" Heavy Duty Lead


Basic Controller, Deluxe Controller, Deluxe Controller w/ Landing Light Only, Deluxe Controller w/ Door Sequencer, Deluxe Controller w/ Door Sequencer and Landing Light


Small Air System, Medium Air System, Super Air System, No Air System