Chase-Sisley C100-S

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]

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

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)
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See also

References
  1. Activate Media (2006). "C100-S Chase-Sisley". Archived from the original on 19 August 2012. Retrieved 6 May 2011.
  2. Said, Bob: 1983 Sailplane Directory, Soaring Magazine, page 39. Soaring Society of America November 1983. USPS 499-920
  3. Federal Aviation Administration (May 2011). "Make / Model Inquiry Results". Retrieved 15 May 2011.
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