Early in 1977, Bennett asked his chief designer, Richard Boone, to develop for experienced pilots a new high-performance version of the Phoenix series of hang gliders. They named it the Mariah. The biggest change was to increase aspect ratio (ratio of wingspan to wing chord) as the leading-edge convergence angle grew to 120 degrees. Boone kept the ‘deflexor’ cables – wires supported by short posts along the wing leading edges – seen on previous designs. By applying tension to the wires, the pilot could deflect the wing to improve flying and stall characteristics. The wing was more responsive to pilot control inputs but was not as stable as previous gliders in the Phoenix line. Bennett and Boone believed that competent, experienced pilots could handle the high-performance wing with.

Display Status

This object is on display in Ultralight Aircraft at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Ultralight Aircraft

Object Details

Date

1977

Country of Origin

United States of America

Type

CRAFT-Aircraft

Manufacturer

Delta Wing Kites and Gliders Incorporated

Dimensions

Wingspan: 11.4 m (37 ft 5 in)
Length: 2.5 m (8 ft 4 in)
Weights: Empty, 25 kg (55 lb)
Gross, 122 kg (270 lb)

Inventory Number

A19840714000

Credit Line

Gift of Bill Bennett

Data Source

National Air and Space Museum

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