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.
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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. Workbook data lists a 26' 6" wingspan, 700 LBS max gross weight, 90 MPH top speed, 80 MPH cruise, and 1200 FPM climb rate.

4-stroke Super Sport performance

Workbook data lists a 90 MPH top speed, 80 MPH cruise speed, 1200 FPM climb rate, and V-Twin 48-53HP engine direction.

Wider Speedster platform

The Super Sport Speedster path adds a 26" cockpit, 26' 6" wingspan, and 700 LBS max gross weight.

Short-field capability

Workbook data lists a 150 FT grass takeoff distance and 180 FT grass landing roll.

Standard sport upgrades

Workbook feature data lists wing tips and steel gear as standard on the 1250SS.

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. Workbook data lists a 26" cockpit, 26' 6" wingspan, 118 SQ. FT. wing area, 700 LBS max gross weight, and V-Twin 48-53HP engine direction.

This page is for builders comparing the 1250SS as a wider Super Sport aircraft project. Workbook data lists 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.

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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 the workbook data.

Plans, Mini-Kits, and full kit path

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

Key 1250SS features

The 1250SS Speedster Super Sport keeps the Mini-Max experience simple and sporty while adding Super Sport capability: a larger wing, wider cockpit, V-Twin 48-53HP engine direction, short-field performance, and a staged build path that lets builders choose the level of kit support they want.

4-stroke Super Sport performance

Workbook data lists 90 MPH top speed, 80 MPH cruise speed, and 1200 FPM climb rate for the 1250SS.

Larger Speedster wing

The verified workbook lists a 26' 6" wingspan and 118 SQ. FT. wing area for the 1250SS.

Wider cockpit

Workbook specifications list a 26" cockpit width and 700 LBS max gross weight.

Simple engine path

Workbook engine options list V-Twin 48-53HP for the 1250SS.

Standard sport upgrades

Workbook feature data lists wing tips and steel gear as standard on the 1250SS.

Flexible build path

Choose plans, Mini-Kits, a full aircraft kit, or prefab quick-build support.

Specifications, pricing, availability, build times, and performance may vary and are subject to change. Source: Mini-Max Aircraft Data 2026 workbook.

1250SS Speedster Super Sport specs

Review the 1250SS Speedster Super Sport using verified 2026 workbook data.

1250SS Speedster Super Sport / 4-Stroke Super Sport
Wingspan26' 6"
Wing Area118 SQ. FT.
Height66"
Length16'
Cockpit Width26"
Empty Weight360 LBS
Useful Load340 LBS
Max Gross700 LBS
Wing Loading5.93 LBS/SQ. FT.
Power Loading14 LBS/HP
Design Load Factors+4.4/-2.2
Fuel Capacity13G Standard 18G Optional
Engine OptionsV-Twin 48-53HP
Top / Cruise90 MPH / 80 MPH
Stall Speed29 MPH clean
25 MPH with flap option
Climb Rate1200 FPM
VNE110 MPH
Takeoff / Landing150 FT grass
180 FT grass landing roll
Base Build Time325-400 Hours
Prefab Build Time250-300 Hours
Plans$299.99
Base Kit$12,499.99
Prefab Kit$13,999.99
Builder Assist$5,499.99
Ready To Fly Estimate$28,999.00
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Specifications, pricing, availability, build times, and performance may vary and are subject to change. Source: Mini-Max Aircraft Data 2026 workbook.

Choose your 1250SS build path

Start with plans, build in stages with Mini-Kits, choose a full aircraft kit, or contact Mini-Max USA about prefab quick-build and support options. Workbook data lists 325-400 hours for the base kit path and 250-300 hours for the prefab kit path.

Plans

Start with drawings, build information, and the lowest-cost first step into the Speedster Super Sport.

Mini-Kits

Break the aircraft project into manageable sections and move forward at your own pace.

Full aircraft kits

Choose the most complete airframe-focused kit path for the 1250SS.

Prefab support

Compare prefab quick-build kit pricing and builder assist estimates from the verified workbook data.

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Specifications, pricing, availability, build times, and performance may vary and are subject to change. Source: Mini-Max Aircraft Data 2026 workbook.

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.

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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.

Build your 1250SS in stages with Mini-Kits

Mini-Kits let you build the 1250SS one major section at a time. This is a practical path if you want to spread out cost, manage shop space, and move through the Speedster Super Sport aircraft project in clear stages.

Plans set

Model-specific drawings, instructions, material lists, hardware details, and 1250SS build information.

Wing rib kit

Materials to build the 1250SS wing ribs.

Wing assembly kit

Spars, bracing, hardware, fittings, and main wing structure components.

Fuselage kit

Structural wood stock, adhesives, fasteners, and fuselage assembly materials.

Landing gear kit

Gear parts, brackets, and landing gear components for the 1250SS.

Empennage kit

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

Metal & hardware kit

Control cables, brackets, fittings, specialty metal parts, and essential hardware.

Select pre-fab options may be available to help reduce build time and improve consistency. Availability may vary by kit section and model.

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Mini-Kits are section-based and may not include every item required to complete the aircraft. Review the current product listing and contact Mini-Max USA with any kit-content questions 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 Aircraft Data 2026 workbook.

Ready to start with the 1250SS Speedster Super Sport?

Review the 1250SS specs, choose plans, mini-kits, a full kit, or contact Mini-Max USA for help getting started.

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