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Overview
All-metal two-seat all-rounder: 46.5″-wide cabin, 24 cu ft of baggage, genuine STOL manners, and engine flexibility from Rotax 912 to a Titan X-340. With the 915iS it becomes the backcountry-touring benchmark: 145 mph cruise, 40 mph flaps stall, 315-ft takeoff roll.
Pros
- ✓ Widest usable cabin in the class
- ✓ Huge baggage bay (180 lb, 24 cu ft)
- ✓ Engine choice scales the mission
Cons
- ✗ S-LSA envelope (1,320 lb) constrains the 180 hp variant to EAB
- ✗ Ferry range w/ 912 only ~650 miles
Full specification
Identity
| Manufacturer | RANS (United States) |
| Status | In production |
| First flight | 2011 |
Classification
| Class | Light-Sport |
| Build form | Kit |
| Part 103 eligible | No |
| LSA eligible | Yes |
| Materials | aluminum |
| Gear | taildragger (tri option) |
| Mission | stol-bush, cross-country |
Capacity
| Seats | 2 (side-by-side) |
| Engine options | Rotax 912 UL/ULS (80–100 hp) · Rotax 915 iS (141 hp turbo) · Titan X-340 (180 hp) |
| Power | 80–180 hp |
| Fuel type | mogas/100LL |
Performance
| Cruise | 120 mph |
| Stall | 38 mph |
| Vne | 215 mph |
| Range | 852 sm |
| Climb | 850 fpm |
| Ceiling | 12,500 ft |
| Takeoff dist. | 350 ft |
| Landing dist. | 350 ft |
Weights
| Useful load | 500 lb |
| Gross weight | 1,320 lb |
| Empty weight | 820 lb |
Dimensions
| Wingspan | 28 ft |
| Length | 22.41 ft |
| Height | 6.5 ft |
| Wing area | 141 sq ft |
| Cabin width | 46 in |
| Rotor (gyro/trike) | — |
Economics
| Kit price (base) | $45,000 |
| Kit price (complete) | — |
| Plans price | — |
| Est. finished cost | $120,000 |
Compiled from: rans.com S-21 spec + 915iS PDF (2020) — verify current kit pricing with the manufacturer.
Notable variants
- S-21 EAB gross 1,800 lb
- S-20 variants (Raven/Lowrider)