Caudron C.684
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| Author(s) | Guillaume Chauvat, Laurent Hayvel (texture) |
|---|---|
| FDM | JSBSim |
| --aircraft= |
/C684 /C684 /C684 /C684 /C684 /C684 /C684 /C684 /C684 /C684 /C684 |
| Status | beta (0.4.12) |
The Caudron C.684 was a single piston engine sport plane of the 1930s.
Aircraft help
| G | Select propeller low pitch (takeoff / landing) |
| g | Select high pitch (cruise) |
| ! | Toggle battery |
| $ | Apply selected pitch |
User's Manual
The propeller is an old variable pitch propeller. It has only two configurations: low and high pitch. Use low pitch for low speeds: takeoff and landing. Use high pitch for cruise (more than 180 km/h).
Standard procedures
Startup
- Battery: On
- Magnetos: both
- Starter: 10 seconds max
Takeoff
- Flaps: 20°
- Full power
- Lift tail wheel at 100 km/h
- Initial climb: 140 km/h
- 100 m (300 ft): Flaps: 0°
- Climb: 150 km/h
Climb
- 150 km/h
- Pitch: low
- Full power
Cruise climb
- Full power
- Pitch: high
- 200 km/h
Change pitch
- Apply pitch: Off
- Select pitch
- Apply pitch: On
- When the light is off, apply pitch: Off
Remark: there are only two different pitches: low and high. "Slow high" ("grand pas lent") makes just the pitch change more slowly than "high pitch" ("grand pas").
Cruise
- Propeller Pitch: High
- 2200 rpm, 275 km/h
- Above 1500 m (4500 ft), mixture in order to maximize rpm.
Landing
- Flaps: 45°
- Speed: 140 km/h
Emergency procedures
Accidental spin
- Rudder: in the direction of the spin
- Elevator: neutral position
- Ailerons: neutral position, DO NOT USE AILERONS
- When the spin stops: pull (<3.5g) to raise the plane
Limitations
Remark: since I didn't find any manual, most of speeds are just estimates
- VNE: 400 km/h (215 kt)
- VFE: 190 km/h (103 kt)
- Max positive G: +3.5
- Max negative G: -1.5
- Max RPM: 2800
- Max continuous RPM: 2500 for 5 minutes