Description
/// CAPTURE BONUS DEPRECIATION ///
/// PURE FUN, TOTAL FREEDOM ///
Mason Amelia presents N401SQ, an aircraft that puts FUN and FREEDOM in the same package.
Built to exacting standards of quality and craftsmanship, the SQ-12 is the culmination of 25 years of experimental Cub building, starting with the famed Wayne Mackey and the SQ-1. Every subsequent iteration incorporated new designs and materials, striving to increase performance and build the perfect backcountry aircraft.
A true STOL aircraft built to haul, the SQ-12 outperforms all other Cubs. An all-time favorite of Alaskan pilots, load it with supplies, take off in 100 feet, land in 100 feet on a mountaintop or gravel bed. No other Cub comes close to its performance, nor its attitude.
Built over 3000 hours with onsite supervision by Wayne Mackey himself, the gray-black carbon scheme is NOT A WRAP. It is miles of fabric tape and 1100 hours of labor. Photos cannot convey the true luster and presence of the aircraft, nor the PURE PILOTING ENVIRONMENT of its sport-luxury cabin.
Built in Alaska for true adventure, winner of the 2025 Outstanding Workmanship award at EAA AirVenture, N401SQ is a step beyond. Meant for the serious backcountry pilot, this is THE connoisseur’s Cub, the best of the best. Not a toy, a true performer - built to offer opportunities few get to experience.
Capture up to $200K in tax savings NOW.
DON’T WAIT! Call Tom Donaldson or Jesse Adams to learn more about this incredible aircraft.
Airframe
2025 SQ-12
Reg: N401SQ Sn: AAC-00001
Aircraft TT SNEW: 85 hours
Performance Specifications
Empty Weight: 1409 lbs.
Useful Load: 991 lbs.
Passengers: 4
Wing Span: 36’8”
Length: 25’ 8”
Cabin Length: 114”
Cabin Width: 35.5”
Passengers: 4
Fuel Capacity: 48 gallons w/ AUX tank
Empty Weight: 1409 Useful Load: 991
Takeoff Distance: 100’
Landing Distance: 100’
Engine
Lycoming IO-390
Engine TT SNEW: 85
Cruise speed: 110MPH
Avionics
GDU 460
Garmin G3X / G5 Panel w/batt
Garmin GTR200B Radio
406 ELT
Garmin G5
Strobes / Nav Lights
Garmin Auto Pilot
Electric Elevator Trim
Garmin GTX 45R
Equipment List
Carbon Fiber Spinner
Whirlwind 3-Blade Ground
Adjustable Prop
K & N Filter
LP6 Landing Light
Backcountry Leading Edge Slats
2x E-Mags
Alaska Bush Wheels - 35 Grove 10” Wheels
Baby Bush Wheel Grove 10” Double Puck Brakes
Tail Wheel Wide Spring Acme Aero Shocks
Dual Lifting Handles PA12 Style Door
Front Seat Shoulder harness
Extra-wide middle seat
11 x 2 Ft Over Size Flaps
Rear Facing Rear Seat
Belly Pod attachments
Folding Pilot Seat
All specifications subject to review & verification
At a Glance
Airframe
Engine
Propeller
85
85
85
Year
2025
Contact Agent
Tom Donaldson
218-340-6153
Aircraft Location
Oshkosh, WI, USA


























