Volpar Inc formed in 1960, Volpar marketed tricycle landing- gear kit for Beechcraft Model 18. Following merger with Volitan Aviation Inc, kits produced to convert Model 18 to turboprop power, designated Turbo 18. Lengthened-fuselage versions followed, Turboliner and Turboliner II; then came 'Packaged Power' units for Beech 18, de Havilland Dove and Beaver, Grumman Goose. Larger premises acquired February 1975 to increase production of Turboliner II.
From 1976 collaborated with Century Aircraft Corporation in producing turboprop conversions for Handley Page Jetstream. Produced programs to upgrade T-33 as T-33V and Falcon 20 as PW300-F20. As Volpar Aircraft Corporation, was acquired by Gaylord Holdings of Switzerland 1990.