1250SS Speedster Super Sport Full Aircraft Kit card: kit sections and what is included
Mini-Max USA Aircraft Kits

1250SS Speedster Super Sport

A wider 4-stroke V-Twin Speedster Super Sport kit path for builders who want open-cockpit Mini-Max simplicity, 700 lb sport-aircraft capability, and practical wood-and-fabric construction.
View 1250SS Specs Shop 1250SS Kit

Four ways to start your 1250SS

Start with plans, build in stages, buy the complete kit, or pay for the complete kit with layaway.

  • Buy Plans

    Start with the plans

    $299.99

    Model-specific plans, shipped to you. Shipping is added at checkout.

    Buy 1250SS plans

  • Build in Stages

    Mini-Kits, one section at a time

    Mini-Kits from $819.99

    Wing, fuselage, tail, landing gear and hardware as separate kits. Each is paid in full when you order it and may not include every item needed to complete the aircraft.

    Shop 1250SS Mini-Kits

  • Buy a Complete Kit

    The whole airframe, one order

    Complete kit from $12,499.99

    Base, prefab wing ribs, or prefab ribs and metal parts. Crating and shipping are added at checkout.

    Shop 1250SS complete kit

  • Aircraft Kit Layaway

    Pay for a complete kit over time

    Payments from  /month

    monthly payments after due at signing (down payment plus crating).

    Spread a complete kit over 12 to 36 months. Contact us for current layaway pricing on the 1250SS.

    See your layaway payment Ask about layaway

Layaway is not financing and not a loan. Kit sections are released in stages as your cleared payments reach each release threshold, and the complete kit ships only after your final payment. Shipping, taxes and options are extra. Read the layaway terms.

Buy the plans first? Buy the same model's full kit, or pay its layaway down payment, within 60 days and we credit the price you paid for the plans. Request the credit before you pay for the kit.

Layaway for the 1250SS

Kit level
Monthly payments

a month for payments

  • Complete-kit cash price ()
  • Layaway kit price
  • Due at signing (% down + crating)
  • Total program cost
Start this layaway request

Layaway is not a loan or financing. Prefab / Quick-Build is the level with prefab wing ribs and prefab metal parts; the prefab-ribs-only level is not offered on layaway. Add-on options, shipping, freight and taxes are extra, and final figures are confirmed on your invoice and contract.

Layaway lets you pay for a complete kit over 12 to 36 months while sections are released in stages. It is not financing. Contact us for current layaway pricing on this model.

Ask about layaway

Open-cockpit Super Sport performance with 4-stroke V-Twin simplicity

The 1250SS Speedster Super Sport is the larger 4-stroke Mini-Max Speedster path for builders who want a wider, higher-capability single-seat aircraft without leaving the simple wood-and-fabric building approach. Engineering estimates list a 26' 6" wingspan, 700 LBS max gross weight, 90 MPH top speed, 80 MPH cruise, and 1200 FPM climb rate.

What the 1250SS is

The 1250SS Speedster Super Sport is the 4-Stroke Super Sport Mini-Max path for builders who want open-cockpit Speedster character with a larger sport-aircraft envelope. Engineering estimates list a 26" cockpit, 26' 6" wingspan, 118 SQ. FT. wing area, 700 LBS max gross weight, and V-Twin 48–53 HP engine direction (engineering estimate — subject to actual testing).

This page is for builders comparing the 1250SS as a wider Super Sport aircraft project. Engineering estimates list a 90 MPH top speed, 80 MPH cruise speed, 1200 FPM climb rate, and short-field numbers that keep the aircraft focused on responsive, practical flying.

Shop 1250SS Kit Compare Models

4-stroke Super Sport mission

A stronger Speedster path for builders who want V-Twin simplicity, open-cockpit flying, and Super Sport capability.

Wider 700 LBS platform

The 1250SS adds the Super Sport wing, wider cockpit, and higher max gross weight shown in current Mini-Max data.

Plans, Mini-Kits, and full kit path

Start small with plans, build in stages, or choose a more complete 1250SS kit path.

1250SS Speedster Super Sport specs

Current specifications, weights, performance, build time, and pricing for the 1250SS Speedster Super Sport.

1250SS4-Stroke Speedster Super SportEngineering estimate — subject to actual testing.
Aircraft Specifications
Wing LayoutMid-wing
CockpitOpen
Wingspan26' 6"
Wing Area118 SQ. FT.
Height66"
Length16'
Cockpit Width26"
Weights
Empty Weight360 LBS
Useful Load340 LBS
Max Gross Weight700 LBS
Wing Loading @ Gross5.93 LBS/SQ. FT.
Power Loading @ Gross14.0 LBS/HP
Powerplant
Reference Horsepower50 HP
Engine OptionsV-Twin 48-53HP — engineering estimate; testing pending
Fuel Capacity13G Standard 18G Optional
Performance

Performance figures are engineering estimates and are subject to actual testing.

Top Speed90 MPH
Cruise Speed80 MPH
Stall Speed (Clean)29 MPH
Stall Speed (Flaps)25 MPH
Climb Rate1200 FPM
VNE110 MPH
Takeoff (Grass)150 FT
Landing Roll (Grass)180 FT
Build Information
Base Kit Build Time325-400 Hours
Prefab Kit Build Time250-300 Hours

Specifications, pricing, availability, build times, and performance may vary and are subject to change.

What comes in a full 1250SS kit

A full 1250SS kit is the most complete airframe-focused build path. It is designed for builders who want the major Speedster Super Sport kit sections organized around one aircraft model instead of purchasing each section one at a time.

Wing rib kit

Materials and components for building the 1250SS wing ribs.

Wing assembly kit

Spars, fittings, hardware, and key wing structure components.

Fuselage kit

Structural wood, adhesives, fasteners, and fuselage build materials.

Landing gear kit

Landing gear components, brackets, and related hardware for the 1250SS.

Empennage kit

Materials for the stabilizer, elevator, rudder, fin, and tail group.

Metal & hardware kit

Control-system parts, fittings, brackets, fasteners, and related hardware.

Plans package

Drawings and build documentation for the Speedster Super Sport project.

Model-specific kit path

A coordinated kit package built around the 1250SS Speedster Super Sport.

Shop 1250SS Full Kit Contact Mini-Max USA

Included at every kit level: a covering kit, a separate ½-gallon T-88 epoxy kit, the Metal & Hardware Kit, and the aircraft plans. Engine, propeller, instruments, avionics, paint, tools, and final finishing items may be separate unless specifically listed on the current product page. Always review the current product listing before ordering.

1250SS feature availability

Feature availability can vary by kit path. Review the current product page before ordering.

Feature 1250SS
FlaperonsOptional
Wheel PantsOptional
Wing TipsSTANDARD
Steel GearSTANDARD
Band BrakesOptional
Black-Max BrakesOptional
Airframe ParachuteOptional
AutoPilotOptional
Seaplane FloatsOptional

Specifications, pricing, availability, build times, and performance may vary and are subject to change. Source: Mini-Max USA aircraft data (2026).

1250SS Gallery

  • 1250SS Speedster Super Sport Full Aircraft Kit card: kit sections and what is included