Ivan Deikin was born in 1914.

When Germany invaded the Soviet Union on 22 June 1941, starshii leitenant Deikin served in 9 IAP-ChF, flying Polikarpov I-153s with this unit.
9 IAP-ChF was part of the Black Sea Fleet and on 1 June 1941 they were based at Ochakov airfield and equipped with 40 I-16s, 16 I-153s and 17 I-15bis.

In the beginning of September, they were withdrawn from the front and started to receive Yak-1s.

In December 1941, he was posted from 9 IAP-ChF to 7 IAP-ChF. With this unit, he flew LaGG-3s.

He was decorated with the Order of the Red Banner on 13 May 1942.

On 1 July 1942, he didn’t return from a combat mission and was posted as missing.

At the time of his death, Deikin was credited with 2 biplane victories.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	05/08/41		1	He 111	Destroyed	I-153			9 IAP-ChF
2	18/08/41		1	Bf 109	Destroyed	I-153			9 IAP-ChF
	1942
	21/04/42		1/2	He 111	Shared destroyed	LaGG-3			7 IAP-ChF

Biplane victories: 2 and 1 shared destroyed.
TOTAL: 2 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