Спасибо за наводку вот что найдено в великой сети -
Heiskala
Frits was able to tell me that there was also a third test pilot: Ltm. Urho Heiskala. Timo Heinonen could tell me that Urho Heiskala was born in 1902. He became famous in Finland during the 20's when did air shows and promotion flights for the air force over Finland with the Moth DH 60 Ilmatar with registration K-SILA and later OH-ILA. He got to the rank of Lentomestari (Ltm) this is a commanding senior officer. He flew as a test pilot from 1933 for the VL. On 2 March 1940 he attacked a large formation of Russian bombers near Tampere with his Fokker D-XXI regnr. FR-84. He was hit and went straight into the ground. Probably he was already dead in the air.
Думаю что это скорее всего он.
Информация была найдена в процессе работы над книгой(скрытая реклама) "Драконы Савицкого" История 3 ИАК 1943-45
Есть еще один вопрос - какие имена были у летчиков 38 ИАП(времен Финской)
Бобров и Ромашков