Caudron C.684

Caudron C.684

Author(s)	/Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture) /Guillaume Chauvat Laurent Hayvel (texture)
FDM	JSBSim
--aircraft=	C684
Status	beta (0.4.12)

The Caudron C.684 was a single piston engine sport plane of the 1930s.

Aircraft help

Key	Description
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

1. Battery: On
2. Magnetos: both
3. Starter: 10 seconds max

Takeoff

1. Flaps: 20°
2. Full power
3. Lift tail wheel at 100 km/h
4. Initial climb: 140 km/h
5. 100 m (300 ft): Flaps: 0°
6. Climb: 150 km/h

Climb

1. 150 km/h
2. Pitch: low
3. Full power

Cruise climb

1. Full power
2. Pitch: high
3. 200 km/h

Change pitch

1. Apply pitch: Off
2. Select pitch
3. Apply pitch: On
4. 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

1. Flaps: 45°
2. 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

External link

• http://www.aviafrance.com/aviafrance1.php?ID=9849&ID_CONSTRUCTEUR=313