- 49′ 1½” wingspan
- Glide ratio 40:1
- Hirth F33BS engine
- 5 gallons fuel capacity
- 265 pounds payload
- Engine on climb > 600fpm
- Min sink speed 45knots
- Retractable UC option
- Stearable tail wheel
- Competitive pricing
Basic Information
| APIS | Engine. Hirth F33BS |
| Wing Span | 49.10 ft |
| Length | 20.4 ft |
| Wing Area | 131.75 ft2 |
| Aspect Ratio | 18.35 |
| positive flap deflection (down) | 0°, 5°,10° |
| negative flap deflection (up) | -5°, -7° |
| centre of gravity (MAC) | 29 % – 42 % |
Weights and centre of gravity
| APIS | Engine. Hirth F33BS |
| Empty weight | 473 lbs |
| Max. take-off mass (MTOM) | 770 lbs |
| Fuel capacity | 1 x 5.3 gal |
| Useful fuel (in flight attitudes) | 1 x 5.3 gal |
| Baggage load (typical, depends on actual aircraft configuration, instruments etc.) | The APIS is a glider and there is no dedicated baggage space. Small items can be carried in the side pockets and at the seat sides. |
| Centre of gravity (MAC) | 29% – 42% |
Design loads
+5.3 G, -2.65 G at Va
+4.0 G, -2.0 G at VNE
Typical CS-22 manoeuvre envelope.
Design and tested safety factory minimum 1.875!
Performance
Data published here is for take-off mass of 770 pounds, ISA conditions, sea level.
| APIS with Hirth F33BS Engine | |
| VS0 (stall with full flaps) | 31 knots |
| VS1 (stall in clean configuration) | 33 knots |
| Max. speed for spoiler extension | 119 knots |
| VFE +5° | 63 knots |
| VFE +10° | 54 knots |
| Manoeuvring velocity Va | 78 knots |
| Rough air speed Vb (gusts 15 m/s) | 78 knots |
| Max. speed in aerotow | 71 knots |
| Vx – speed for best angle of climb | 42 knots |
| Vy – speed for best climb rate | 45 knots |
| Max. climb rate MTOM | 660 fpm |
| Minimum sink speed | 45 knots |
| Minimum sink rate | 120 fpm |
| Max. sink with spoilers extended | 920 fpm |
| Best L/D speed | 51 knots |
| Best L/D ratio | 40:1 |
| Glide ratio at 150 km/h (80 knots) | 27:1 |
| Takeoff runway length at MTOM | 450 ft |
| Takeoff length over 15 m obstacle | 800 ft |
| 45°-45° roll time | 3.5 seconds @ 54 knots |
APIS Polar
