Chase-Sisley C100-S

C100-S
Role	Glider
National origin	United States
Designer	Robert Chase
First flight	1968
Introduction	1968
Status	No longer in production
Number built	One

The Chase-Sisley C100-S is an American mid-wing, single seat FAI Open Class glider that was designed in the 1960s by Dr. Robert Chase.^[1][2]

Design and development

The C100-S project was started by Chase in 1962, with prototype construction commenced near the end of 1963. The resulting aircraft was first flown in 1968.^[1][2]

The aircraft is built from a combination of wood, styrofoam, aluminium and fiberglass. The semi-tapered wing is built from wood and styrofoam, covered with stress-bearing fiberglass. The wing is tapered outboard of the mid-span point. The wing spar is built up from 14 layers of fiberglass and epoxy resin at the root and is a box-style spar that occupies 40% of the wing chord. The wing is constructed in three pieces, a center-section and wing tips and features Schempp-Hirth dive brakes. The wing is 15% thick and employs a NACA 64(3)-615 laminar flow airfoil.^[1][2]

The fuselage is built from aluminium and features stressed skin construction. The landing gear is a fixed monowheel. The pilot's seating position is semi-reclined. In addition to the dive brakes the pilot has a tail-mounted drag chute available.^[1][2]

Only one C100-S was ever built and it is registered in the experimental amateur-built category.^[1][2][3]

Operational history

The former owner of the glider, Dr. Richard Sisley of Los Angeles, California, reported in 1983 that the aircraft had excellent thermalling flight characteristics.^[2]

In May 2011 the sole example produced was still registered with the Federal Aviation Administration.^[3]

Specifications (C100-S)

Data from Sailplane Directory and Soaring^[1][2]

General characteristics

• Crew: one
• Wingspan: 55 ft (17 m)
• Wing area: 138 sq ft (12.8 m²)
• Aspect ratio: 22:1
• Airfoil: NACA 64(3)-615
• Empty weight: 530 lb (240 kg)
• Gross weight: 730 lb (331 kg)

Performance

• Maximum glide ratio: 38:1 at 55 mph (88 km/h)
• Rate of sink: 120 ft/min (0.61 m/s) at 48 mph (77 km/h)
• Wing loading: 5.3 lb/sq ft (26 kg/m²)

See also

• List of gliders
  

References

1. ^ ^{a b c d e f} Activate Media (2006). "C100-S Chase-Sisley". http://www.sailplanedirectory.com/PlaneDetails.cfm?PlaneID=51. Retrieved 6 May 2011. 
2. ^ ^{a b c d e f g} Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 39. Soaring Society of America November 1983. USPS 499-920
3. ^ ^{a b} Federal Aviation Administration (May 2011). "Make / Model Inquiry Results". http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=2160. Retrieved 15 May 2011.