Heinonen HK-1 Keltiänen
The HK-1 Keltiänen was designed and built by engineer Juhani Heinonen in 1954, registered OH-HKA.
The only Finnish aircraft which has achieved a world’s record. plane He made the record long distance flight on 10 July 1957, from Madrid to Turku nonstop, 2844 km in 17 hours 1 minute. This constituted a world’s record in category C-1.A; single-engine land planes with take-off weight max 500 kilos. The record stayed with this aircraft until 1974.
The aircraft was in use from 1954 – 1978.