Vertipedia - Cierva C.8 (Mark II)

A modification of the C.8 developed the same year, 1927.

Overview

Data on design, manufacture and status

Design authority: Cierva Autogiro Company Ltd.

Primary manufacturer: Cierva Autogiro Company Ltd.

Parent type: No type defined

Aircraft status: No longer flying

Configuration

Primary flight and mechanical characteristics

VTOL type: Gyroplane

Compound type: N/A compounded with 1 propulsors

Lift devices: 1 Single main rotor

Dedicated control device: 1 Rudder

Crew required: 1 in Tandem arrangement

Landing gear: Wheels (non-retractable)

Key Characteristics

Data on key physical features

Aircraft Details

Data on aircraft configuration, weights, flight performance and equipment

Layout and Dimensions

Weights and Performance

Engine Details

Primary Lift Device

Overall Dimensions
Overall Height:
Overall Length:
Overall Width:	11.89 m	39.0 ft

Airframe Dimensions
Airframe Length:
Airframe Width:	7.07 m	23.2 ft
Airframe Height:

Landing Gear Dimensions
Landing Gear Base:
Landing Gear Track:

Cabin Dimensions
Cabin Internal Height:
Cabin Internal Length:
Cabin Internal Width:

Cruise Speed: 85 mph (136.794 km/h)

Weights
Max Gross Weight (ground):	1,080 kg	2,380 lb
Max Gross Weight (airborne):
Max Take-off Weight:	1,080 kg	2,380 lb
Empty Weight:	787 kg	1,735 lb

Climb Performance
Max Rate of Climb:

Hover Performance
Hover Ceiling IGE:
Hover Ceiling OGE:

Limitations
Max Level Flight Speed:	161 km/h	87 kts
Never Exceed Speed:
Service Ceiling:

Range and Endurance
Max Range:
Max Endurance:

Provided powerplant data is for uninstalled, sea level, static operations.

Powerplant
Number of engines:	1
Designation:	Armstrong Siddeley Lynx reciprocating
Manufacturer:	Armstrong Siddeley

Normal Ratings
Max continuous:
Take-off / rated:	149 kW	200 hp
Intermediate:
Maximum:

OEI Ratings
OEI contingency:
OEI continuous:
OEI 30-second:
OEI intermediate:

Main Rotor Characteristics
Diameter:	11.89 m	39.00 ft
RPM:
Direction of Rotation:	Counterclockwise
Hub Type:

Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:
Blade Tip Geometry:
Blade Twist:
Number of Blades:	4

Main Rotor Derived Characteristics
Disc Area:	110.98 m²	1194.6 ft²
Disc Loading:	9.73 kg/m²	1.992 lb/ft²
Solidity:

Main Rotor Blade Derived Characteristics
Blade area per blade:
Tip Speed:

Tail Rotor Characteristics
Diameter:
Configuration:	Unknown
Direction of Rotation:	Unknown
RPM:

Tail Rotor Blade Characteristics
Number of Blades:
Blade Construction:	N/A
Blade Chord:
Blade Twist:

Tail Rotor Derived Characteristics
Disc Area:
Solidity:

Tail Rotor Blade Derived Characteristics
Tip Speed:
Blade Area (per blade):

References

References and sources used

The History of the Autogiro (Autogiro Data Sheet)

George Townson
AHS Newsletter, 1961, March 1961 (page 12-13)
Periodical

Related VFS Resources

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Related Public Resources

Resources related to the C.8 (Mark II), provided by public sources across the internet.

Publicly-funded resources provided by the US Government

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Public resources provided by select scholarly and academic sources

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Number of engines:	1 Reciprocating
Max Level Flight Speed:	161 km/h	87 kts
Max Range:
Max Endurance:

Main Rotor Diameter:	11.89 m	39.00 ft
Max Gross Weight (ground):	1,080 kg	2,380 lb