The Grumman G-164 Ag Cat was certificated for agricultural work in January 1959, following
development from the prototype that was flown first on May 22, 1957. Production aircraft
were assembled by the Schweizer Aircraft Corporation between 1959 and 1979 under sub-contract
from Grumman. In 1981 Schweizer bought the design and production rights. Until they sold the
manufacturing rights to AgCat Corporation in 1995 the AgCat remained in production with
Schweizer.
The 1966-built Grumman G.164A Agcat PH-DAP (ex N906X, SE-ENW) was registered in the Netherlands
on June 10th 1969 with the agricultural company Dutch Air Sprayers. The Grumman G.164A Ag Cat's
SE-ENW & SE-ENT arrived in April 1969 by car at Groningen-Eelde airfield in the Netherlands.
They were brought in flying condition and registered PH-DAP & PH-DAS. The PH-DAP was photographed
on May 30th 1970 during the Eelde Airshow: it showed a great dogfight together with and against sistership
PH-DAS. On August 31st 1971 the registrations of both Ag Cats were cancelled after the defunct of Dutch
Air Sprayers. They were re-registered in the USA as N33508 and N33509 on June 16th 1972.