Plane Details

Concept C-70 Berkshire

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General Details
Manufacturer:	Berkshire
Plane Name:	Concept C-70
Classified as:	Unclassified
Country Of Origin:	U S A
Designer:	A. Zimmermann
No. of Seats	1
No. Built	21

Performance:
L/DMax:	39

MinSink:

Specifications:

Span		Area		Empty Weight		Payload		Gross Weight		Wing Load		Water Ballast
m	ft	sq.m	sq.ft	kg	lb.	kg	lb.	kg	lb.	kg /sq.m	lb. /sq.ft	kg	lb.
15	49.2	12.26	132	250	550	147	325	397	875	32.38	6.63	91	200

Aspect ratio:	18.3
Airfoil:	Wortmann
Structure:	fiberglass
Engine:

Comment:
The C-70 which first flew in 1971, is a 15-meter racing class ship of molded fiberglass construction. The fuselage incorporates a tubular- steel framework that ties together the landing gear, wing fittings and a protective cage around the pilot. Differing in a number of respects from the prototype, the production version emerged with a Wortmann airfoil, full-span flaps, no brakes and a conventional horizontal tail. The 90- degree flaps allow a very steep landing approach. The ship also features retractable gear, in- flight adjustable rudder pedals, adjustable seat- back and (optional) 91 kg./ 200 lb. Water ballast. Production ceased in 1974.

Your Comments:
C G Sailplanes, Inc. - 157 - Posted by: Wayne Garner - hudis1@aol.com (16/Sep/2002) Reply
RE: C
Concept C-69 - 157_257 - Posted by: sclancy@extremeairsports.com (11/Oct/2004) Reply
RE: Concept
C-69 - 157_257_259 - Posted by: sclancy@extremeairsports.com (27/Oct/2004) Reply
RE: C
RE PROTOTYPE C-70 - 157_258 - Posted by: Wayne (18/Oct/2004) Reply
MOLDS DESTROYED, NO PARTS AVAILABLE - 208 - Posted by: Wayne Garner - hudis1@aol.com (19/Aug/2003) Reply