Tumanov was a veteran from the Spanish Civil War.

In 1941, he served as CO of an eskadrilya of the 72 SmAP-SF, which was equipped with a mixture of Polikarpov I-15bis and I-153s. The unit operated in the defence of Murmansk.

On 29 June, Ju 88s attacked Vayenga airfield. The I-153s from 72 SmAP-SF intercepted these and Vasiliy Adonkin claimed a Ju 88 and three more shared as did leitenant Fedor Plotko. The three shared Ju 88s were shared among five pilots including Adonkin, leitenant Plotko and starshiy leitenant Viktor Alagurov. A sixth Ju 88 was claimed by Tumanov.

He claimed another enemy aircraft on 9 August 1941 while flying an I-153.
This claim was probably made against Luftflotte 5, which attacked Vayenga twice during the day and the pilots of 72 SmAP-SF took off and fought vigorously against both raids.

Tumanov ended the war with 2 biplane victories.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	29/06/41		1	Ju 88	Destroyed	I-153		Vayenga airfield	72 SmAP-SF
2	09/08/41		1	Enemy aircraft (a)	Destroyed	I-153		Vayenga airfield	72 SmAP-SF

Biplane victories: 2 destroyed.
TOTAL: 2 destroyed.
(a) Probably claimed in combat with aircraft from Luftflotte 5.

Sources:
Black Cross/Red Star Volume I - Christer Bergström and Andrey Mikhailov, 2000 Pacifica Military History, ISBN 0-935553-48-7
Le Chaika et l’attaque au sol (Les I-153 dans le Caucaseet au Kouban en 1942-43) – Dmitriy Karlenko, 2003 Air Magazine No.17 dec 2003/jan 2004, kindly provided by Ondrej Repka
Additional information kindly provided by Ondrej Repka.