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JMB Aircraft VL-3 (G3X Touch) Quick Reference
V-SPEEDS
| Speed | Value | Description |
|---|---|---|
| Lift-off | Above 70 km/h (38 kts) IAS | - |
| Initial Climb | 110 km/h (60 kts) IAS | After take-off |
| Climb | 120 km/h (65 kts) IAS | Normal climb at max continuous power |
| Vy | 130 km/h (70 kts) IAS | Best rate of climb, 6 m/s. The manual prints 65 kts beside 130 km/h; 130 km/h converts to 70 kts |
| Va | 165 km/h (89 kts) IAS | Manoeuvring speed |
| Vfe | 120 km/h (65 kts) IAS | Max flap extension speed |
| Vno | 210 km/h (113 kts) IAS | Max structural cruising; yellow arc 210 - 305 km/h |
| Vne | 305 km/h (165 kts) IAS | Never exceed |
| Vs1 (Flaps Retracted) | 75 km/h (40 kts) IAS | Idle power, 82 km/h CAS |
| Vs (Flaps Take-Off) | 65 km/h (35 kts) IAS | Idle power, 73 km/h CAS |
| Vs0 (Flaps Landing) | 55 km/h (30 kts) IAS | Idle power, 65 km/h CAS |
| Base Leg | 110 km/h (60 kts) IAS | Flaps 15 deg |
| Final | 90 - 100 km/h (50 - 55 kts) IAS | Flaps 38 or 55 deg |
| Touchdown | About 65 km/h (35 kts) IAS | - |
| Best Glide | About 110 km/h (60 kts) IAS | Flaps retracted |
| Descent | 140 km/h (75 kts) IAS | - |
POWER SETTINGS
| Phase | Setting |
|---|---|
| Idle | 1,400 RPM |
| After Start | 1,500 RPM for smooth running |
| Take-Off | Max take-off - 5,800 RPM, 27.5 inHg, max 5 min |
| Climb | Max continuous - 5,500 RPM, 27 inHg |
| Cruise (Max Continuous) | 5,500 RPM, 27 inHg - 235 km/h IAS |
| Cruise (Economy) | 4,800 RPM, 24 inHg - 185 km/h IAS |
| Descent | Idle, or increased idle to keep engine temperatures in limits |
FLAP SCHEDULE
| Setting | Max Speed | Use |
|---|---|---|
| Retracted | Up to Vne 305 km/h | Climb, cruise, glide |
| 15 deg (Take-Off) | <= 120 km/h (65 kts) | Take-off, base leg, balked landing |
| 38 deg | <= 120 km/h (65 kts) | Final approach |
| 55 deg (Landing) | <= 120 km/h (65 kts) | Final approach and landing |
ENGINE LIMITS
| Parameter | Value |
|---|---|
| Engine | Rotax 912 ULS, 100 hp (73.5 kW) |
| Max Take-Off RPM | 5,800 RPM (max 5 min) |
| Max Continuous RPM | 5,500 RPM (69 kW / 95 hp) |
| Cruise RPM | 4,800 RPM (66 kW / 90 hp) |
| Idle RPM | 1,400 RPM |
| CHT | 60 degC min; 60 - 100 green; 100 - 135 caution; 135 degC max |
| Oil Temperature | 50 degC min; 90 - 110 green; 110 - 130 caution; 130 degC max |
| Oil Pressure | 1 bar min; 1.5 - 5.0 green; 5.0 - 7.0 caution; 7.0 bar max (cold engine start) |
| Fuel Pressure | 0.15 - 0.4 bar (if gauge installed) |
| Starter | Max 10 sec, then 2 min cooling pause |
| Approved Fuel | Premium automotive (min RON 95) or AVGAS 100LL (AVGAS only if others unavailable) |
KEY NUMBERS
| Parameter | Value |
|---|---|
| Max Take-Off Weight | 472 kg (1,041 lbs) |
| Max Landing Weight | 472 kg (1,041 lbs) |
| Empty Weight | 303 kg (standard equipment) |
| Max Baggage | 15 kg |
| CG Range | 21 - 34 % MAC |
| Fuel Capacity | 88 l (2x 44 l wing tanks, 23.2 US gal) |
| Fuel Warning Light | 8 l left / 7 l right |
| Take-off Run (grass, sea level) | 160 m (525 ft) |
| Take-off Distance over 15 m (grass) | 290 m (951 ft) |
| Landing Run (grass, full braking) | 90 m (295 ft) |
| Landing Distance over 15 m (grass) | 270 m (886 ft) |
| Max Crosswind | 5 m/s (about 10 kts) demonstrated |
| Max Headwind | 8 m/s (about 16 kts) |
| Max Taxi Speed | 15 km/h (8 kts) |
| Max Bank | 60 deg - no aerobatics, intentional spins or stalls |
| Operations | Day VFR only |