Boris Maslov was born in Starotitarovskoy in 1920.

He joined the Red Army in 1938.

When German attacked the Soviet Union in June 1941, mladshiy leitenant Maslov served in 96 Otdelnaya Aviaeskadrilya (OIAE - independent squadron). The commanding officer of this unit was Kapitan Aleksandr Korobitzin. In June 1941, the unit was based on Izmail airfield and equipped three Polikarpov I-153s and fourteen Polikarpov I-15bis.

During the Axis attack on Soviet Union in June 1941 Rumanian forces attacked the part of the front that included Izmail.

At 14:00 on 22 June 1941, fourteen I-15bis and three I-153s of 96 OIAE (the entire squadron) scrambled from their airfield at Izmail, alarmed by early warning on incoming enemy aircraft- They attacked eight Romanian I.A.R. 37 biplanes of Escadrila 18 bombardament at 1,000 meters over Izmail, close to the estuary of the Danube in southern Bessarabia, claiming five of them shoot down.
The 96 OIAE commander kapitan Aleksandr Korobitzin and starshiy leitenant Mikhail Maksimov (whose victim fell into the Danube River) each claimed a destroyed. A third was claimed by mladshiy leitenant Maslov from starshiy leitenant Maksimov’s flight. One shared was claimed by starshiy leitenant Lavrentiy Borisov, deputy commander of 96 OIAE, and leitenant Nikolay Cherkasov. The fifth, finally, was claimed as a shared between leitenant Vasiliy Kuroedov (flight commander), leitenant Leonid Khomutov, leitenant Aleksandr Evstigneyev and leitenant Shota Gogmachadze.
In fact, only one I.A.R. 37 was shot down by Soviet fighters, most probably by mladshiy leitenant Maslov while a second was claimed by the 463rd Anti-Aircraft Battery under starshiy leitenant G. Okhota. Maslov returned to base much later than his colleagues on his last drops of fuel. He had pursued an enemy aircraft way behind the line of the Danube until finishing it off deep inside enemy territory. Upon return, ground crew could count many bullet holes in the airframe of Maslov’s I-15bis.
The Rumanian biplanes, which lost two of their numbers, had been escorted by eight He 112B from Grupul 5 Vânatoare.

On 30 June, he claimed a Ju 88 over Izmail. Shortly after this, the Soviet fighters from 96 OIAE was attacked by several ‘Bf 109s’ and mladshiy leitenant Maslov’s I-15bis was hit at least forty times and the engine damaged. He was wounded in the left shoulder. Despite this he managed to land his fighter safely.
The ‘Bf 109s’ were most probable Rumanian Hurricanes from Escadrila 53 Vânatoare.

In November 1941, he transferred to 62 IAP-ChF to command the 2 eskadrilya. With this unit, he flew LaGG-3s.

On 10 August 1942, Stefan Voitenko and Maslov claimed a shared Bf 110 east of Novorossiysk Bay. Voitenko then claimed an Bf 109 in the Novorossiysk area before he and Maslov claimed a shared Ju 88 over Abrau-Dyurso.

On 15 November 1942, he was decorated with the Order of the Red Banner.

In 1943, he was transferred to 6 GIAP-ChF and flew Yak-1s and Yak-9s with this unit.

The Yak-9s from 6 GIAP-ChF claimed Bf 109s on 10 January 1944 when Mikhail Avdeyev (CO 6 GIAP-ChF) claimed one over Libknekhtovka and one over Cape Mama Russkaya while Maslov claimed a third also over Cape Mama Russkaya.

On 23 April 1944, he was decorated with a second Order of the Red Banner.

On 17 May 1944, he was decorated with the Order of the Patriotic War 1st Class.

Maslov ended the war with 2 biplane victories and a total of 8.
These had been claimed during 420 combat missions and around 60 air combats.

On 25 December, he was decorated with the Order of Aleksandr Nevsky.

He continued to serve after the war and was killed on active service on 1 July 1949.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	22/06/41	14:00	1	I.A.R. 37 (a)	Destroyed	I-15bis		Izmail area	96 OIAE
2	30/06/41		1	Ju 88	Destroyed	I-15bis		Izmail	96 OIAE
	1942
3	09/08/42		1	He 111	Destroyed	LaGG-3		Varvarovka	2./62 IAP-ChF
	10/08/42		1/2	Bf 110	Shared destroyed	LaGG-3		E Novorossiysk Bay	2./62 IAP-ChF
	10/08/42		1/2	Ju 88	Shared destroyed	LaGG-3		Abrau-Dyurso	2./62 IAP-ChF
4	08/09/42		1	Fw 187	Destroyed	LaGG-3		Semonovskiy farm	2./62 IAP-ChF
5	09/09/42		1	Bf 110	Destroyed	LaGG-3		Kabardinka	2./62 IAP-ChF
	1944
6	10/01/44		1	Bf 109	Destroyed	Yak-9		Cape Mama Russkaya	6 GIAP-ChF
7	13/03/44		1	Bf 109	Destroyed	Yak-9		Cape Ilyin	6 GIAP-ChF
8	04/05/44		1	Bf 109	Destroyed	Yak-9		Khersone's lighthouse	6 GIAP-ChF
	23/08/44		1/2	Bf 109	Shared destroyed	Yak-9		Brail	6 GIAP-ChF

Biplane victories: 2 destroyed.
TOTAL: 8 and 3 shared destroyed.
(a) Claimed in combat with I.A.R. 37s from Escadrila 18 bombardament, which lost 2 aircraft (1 to AA fire). 96 OIAE claimed 5 destroyed without losses.

Sources:
All aces of Stalin 1936–1953 – Mikhail Bykov, 2014
From Barbarossa to Odessa: Volume 1 – Dénes Bernád, Dmitriy Karlenko and Jean-Louis Roba, 2007 Ian Allan Publishing Ltd, ISBN 978-85780-273-3
Soviet Aces 1936-1953