Sergey Belyayev was born in 1915 in Novikovo.

He joined the Red Army in 1937 and graduated from Yeysk Naval Aviation School of pilots in 1939.

Belyayev took part in the Soviet-Finnish Winter War of 1939-1940 as part of 11 OIAE-KBF.

When Germany invaded the Soviet Union on 22 June 1941, leitenant Belyayev served in 5 IAP-KBF, flying Polikarpov I-15bis.

On 7 July, the I-15bis from 5 IAP-KBF intercepted Ju 88s north of Vormsi Island. Belyayev claimed one shared with another pilot while leytenant Aleksandr Mironenko claimed a second shared with two other pilots.

In August, he was wounded while attacking ground troops.

In February 1942, he was posted to 11 IAP-KBF.

Three I-16s and four I-15bis encountered a Kotka between 10:53 and 12:45 on 5 April 1942 in the Tytärsaari area at 1,300 meters. The I-15bis shot it down and then made forced landings on the ice due to fuel exhaustion.
Included pilots on the I-15bis were mladshiy leitenant Isaak Borokhov and Belyayev. Later a Bf 109 detachment shot one of them into flames. The only Finns over the Gulf of the Finland at that time were three I-153s of 3/LLv 6, which didn’t report meeting the enemy.

He was posted to 12 OIAE-KBF in June 1943.
This unit had been retraining on Yak-/Bs and resumed combat in July 1943.

He claimed a ”Fiat” over Shepelev lighthouse on 15 September. A second seems to have been claimed by Yevgeniy Susanin.

On 1 November 1943, 12 OIAE-KBF became 12 IAP-KBF.

Belyayev claimed a shared FW 190 south-west of Tovla on 29 May 1944. It is possible that this claim was shared with Yevgeniy Susanin and Sergey Belyayev since it’s known that both claimed a shared FW 190 ”in group” at the same day and place.

On 12 January 1945, major Belyayev became CO of 12 IAP-KBF and he remained in this role until the end of the war in May.

Mayor Belyayev claimed two FW 190s over Libava on 26 March 1945. It seems that a third was claimed by starshiy leitenant Il’ya Shkurko.

Belyayev ended the war with two shared biplane victories and a total of 9.
These had been claimed during 510 combat missions.

He continued to serve in the Navy Air Force after the war and from 1957 he served in the Air Defence Forces.

Belyayev passed away in February 1974.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
	07/07/41		1/2	Ju 88	Shared destroyed	I-15bis		N Vormsi Island	5 IAP-KBF
	1942
	05/04/42	10:53-12:45	1/4	”Kotka” (a)	Shared destroyed	I-15bis		Seiskari/Tytärsaari area	11 IAP-KBF
	1943
1	15/09/43		1	FW 190	Destroyed	Yak-7B		Sinyavino	12 OIAE-KBF
2	28/09/43		1	”Fiat”	Destroyed	Yak-7B		Shepelev lighthouse	12 OIAE-KBF
	1944
3	02/04/44		1	FW 190	Destroyed	Yak-7B		E Vigrund Bank	12 IAP-KBF
4	24/04/44		1	FW 190	Destroyed	Yak-7B		Azeri	12 IAP-KBF
	21/05/44		1/2	FW 190	Shared destroyed	Yak-7B		Azeri	12 IAP-KBF
	25/05/44		1/?	FW 190	Shared destroyed	Yak-7B		SW Toyla	12 IAP-KBF
5	20/06/44		1	FW 190	Destroyed	Yak-7B		Vyborg Bay	12 IAP-KBF
6	24/10/44		1	FW 190	Destroyed	Yak-3		W Aliost	12 IAP-KBF
	1945
7	26/03/45		1	FW 190	Destroyed	Yak-9		Libava	12 IAP-KBF
8	26/03/45		1	FW 190	Destroyed	Yak-9		Libava	12 IAP-KBF
9	25/04/45		1	Ju 52/3m	Destroyed	Yak-9		N Kezlin	12 IAP-KBF

Biplane victories: 2 shared destroyed.
TOTAL: 9 and 4 shared destroyed.
(a) Not verified with Finnish records.

Sources:
All aces of Stalin 1936-1953 – Mikhail Bykov, 2014
Soviet Aces 1936-1953
Soviet Fighter Pilots 1936-1953 - Mikhail Bykov
Suomen Ilmavoimat part IV – 1942 – Kalevi Keskinen and Kari Stenman, 2007, ISBN 978-952-99743-2-0