Bengt Carl Lönnqvist served as an mechanic in LeR 3 from 14 February 1940.

He also served in T-LeR 2 and LeR 2.

Nothing more is known about his service during the Winter War.

Sources:
Article by Eino Ritaranta in "Suomen Ilmailuhistoriallinen Lehti" no. 1/1996 kindly provided by Carl-Fredrik Geust
Additional information kindly provided by Carl-Fredrik Geust