Dmitriy Vichugin was born in 1918.

When Germany attacked the Soviet Union on 22 June 1941, mladshiy leitenant Vichugin served in 38 IAP. This regiment was equipped with Polikarpov I-153s and I-16s and operated on the North-Western Front.
On 22 June, the regiment had 63 I-153s and I-16s (of which 16 were non-operational).

On 21 July, kapitan Nikolay Sobolev claimed a shared ”PZL” together with another pilot south-east of Dno.
It’s possible that this was claimed together with mladshiy leitenant Vichugin since it’s known that he claimed a shared ”PZL” together with another pilot during the day.

Vichugin didn’t return from a combat mission on 26 July 1941.

At the time of his death, Vichugin was credited with 1 biplane victory.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	11/07/41		1	Bf 109	Destroyed	Polikarpov I-153		North-Western Front	38 IAP
	21/07/41		1/2	PZL	Shared destroyed	Polikarpov I-153		SE Dno	38 IAP

Biplane victories: 1 and 1 shared destroyed.
TOTAL: 1 and 1 shared destroyed.

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