Nikolay Vovk was born in 1918.

Dankevich took part in the Soviet-Finnish Winter War in 1939-1940.

In December 1941, mladshiy leitenant Vovk was posted to 270 IAP, which operated on the Transcaucasian Front. The unit was equipped with Polikarpov I-153s.

In January 1942, 270 IAP moved to the Crimean Front.

It seems that Vovk was nominated for the Gold Star of the Hero of the Soviet Union but instead “only” received the Order of Lenin on 21 February 1942.

Leitenant Vovk was killed in air combat on 24 March 1942.

At the time of his death, Vovk was credited with 2 biplane victories.
These had been claimed during 45 combat missions (as of 31 January 1942).

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1942
1	09/01/42		1	Bf 109	Destroyed	I-153		Crimean Front	270 IAP
2	14/01/42		1	Bf 109	Destroyed	I-153		Crimean Front	270 IAP

Biplane victories: 2 destroyed.
TOTAL: 2 destroyed.

Sources:
All aces of Stalin 1936-1953 – Mikhail Bykov, 2014
Soviet Aces 1936-1953
Soviet Fighter Pilots 1936-1953 - Mikhail Bykov