1703R Hi-Max Ultralight Full Aircraft Kit
1703R Hi-Max Ultralight Full Aircraft Kit
Ready to move from plans to a full aircraft kit? This full aircraft kit product is built for customers who want the clearest path forward with a model-specific kit package and available prefab upgrade levels.
Aircraft family: Part 103 High-Wing
Suggested engine direction: 28-30 hp 2-stroke
Kit Level Options
- Base Kit: the standard full aircraft kit package.
- Kit with Prefabbed Wing Ribs: adds prefabbed wing ribs to reduce rib-building time.
- Kit with Prefab Wing Ribs and Prefab Metal Parts: the most complete kit level in this upload, adding prefabbed wing ribs and prefab metal parts.
Common exclusions unless specifically listed
Engine, propeller, instruments, avionics, battery, wiring, electronics, covering, paint, upholstery, registration, certification, inspection services, training, shipping, and assembly labor are not included unless the product page or invoice specifically says otherwise.
Pricing note: This product is set to Draft with placeholder pricing until final kit pricing is confirmed.
Mini-Max USA recommends starting with plans if you are still comparing models. Full aircraft kits are best for builders ready to commit to a complete path forward.
Build smart. Fly smart. Aviation activities involve real risk and require skill, judgment, inspection, training, and independent verification before use. Buyers are responsible for suitability, assembly, compliance, inspection, operation, and safe use.
Specifications+
Dimensions & Weight
- Wingspan: 25 FT
- Wing Area: 112.5 SQ. FT.
- Length: 16'
- Height: 66"
- Cockpit Width: 22"
- Empty Weight: 250 LBS
- Useful Load: 260 LBS
- Max Gross Weight: 500 LBS
- Wing Loading: 3.82 LBS/SQ. FT.
- Power Loading: 15.35 LBS/HP
- Design Load Factors: +4.4/-2.2
- Fuel Capacity: 5 Gallons
Performance
- Top Speed: 60 MPH
- Cruise Speed: 55 MPH
- Stall Speed (clean): 29 MPH
- Stall Speed (with flaps): 22 MPH
- Climb Rate: 650 FPM
- VNE: 90 MPH
- Takeoff Distance (grass): 150 FT
- Landing Roll (grass): 180 FT
Engine Options
- Hirth F-33
- Polini 202 / 260 / 303
- Simonini Mini 3
Features (Standard / Optional)
- Flaperons: Optional
- Wheel Pants: Optional
- Wing Tips: Optional
- Steel Gear: Optional
- Band Brakes: Optional
- Black-Max Brakes: Optional
What's Included+
The 1703R Hi-Max Ultralight full aircraft kit ships as a model-specific package with builder-selectable kit levels, so you buy exactly the amount of prefab work you want for your homebuilt aircraft.
- Base Kit — the standard full aircraft kit package.
- Kit with Prefabbed Wing Ribs — adds prefab wing ribs to save build time.
- Kit with Prefab Wing Ribs and Prefab Metal Parts — the most complete level, adding prefab ribs and prefab metal parts.
Not included unless listed
Engine, propeller, instruments, avionics, battery, wiring, covering, paint, upholstery, shipping, assembly labor, registration, certification, inspection, and training are not included unless the product page or invoice specifically says so.
Build Time & Skill Level+
Estimated build time depends on the kit level you choose and your experience. Prefab wing ribs and prefab metal parts meaningfully reduce build time.
- Base kit build time: 350-400 Hours
- Prefab quick-build kit build time: 250-300 Hours
This is an amateur-built, wood-and-fabric aircraft designed for hands-on homebuilders. Typical skills:
- Basic woodworking, measuring, and drilling
- Riveting and assembly of metal parts
- Epoxy work and fabric covering
- No welding or advanced machining required for a standard build
Mini-Max USA builder-assist support is available to help you finish.
Part 103 & Experimental+
The 1703R Hi-Max Ultralight is designed as a single-seat Part 103 ultralight candidate. Under FAA Part 103, a legal ultralight needs no pilot license, no medical, and no aircraft registration when the finished aircraft meets the Part 103 limits.
- Single-seat, for recreation or sport use only.
- Empty weight at or below 254 lb (with allowances for floats or a ballistic parachute).
- Top speed 55 knots (about 63 mph) or less; power-off stall speed 24 knots or less.
- Fuel capacity of 5 U.S. gallons or less.
Part 103 also makes the 1703R Hi-Max Ultralight an affordable way to build flight time — low purchase and operating cost for recreational flying and hour building.
Final Part 103 eligibility depends on your finished configuration, weight, and equipment. You are responsible for verifying actual empty weight, speed, stall speed, and fuel capacity before flight. No listing statement is an FAA determination of eligibility.
Shipping & Returns+
Most in-stock items ship within 3–5 business days. Full aircraft kits and large or heavy items may ship by motor freight, and transit times vary.
For returns, freight quotes, or questions, review our Refund Policy, see Shipping & Pickup, or contact us.
