Armando Capogrossi was from Roma.

In July 1941, Tenente Capogrossi served in the 368^a Squadriglia, 151^o Gruppo. This unit was at the time based in Cirenaica and equipped with Fiat CR.42s.

On 18 July, six Blenheims from 110 Squadron were led by Wing Commander Theodore Moseley Hunt DFC, to attack a power station at Tripoli. Wing Commander Hunt was seen to obtain direct hits on the target, but during the return flight, at around 14:30, the formation was attacked by an Italian fighter when 13km out to sea from the African coast. The interceptor opened fire from long range, and Hunt’s Blenheim Mk.IV (Z9582) at once crashed into the sea killing 26-years-old Hunt (RAF no. 37356), 20-years-old Flight Sergeant Frederick Samuel Thripp (RAF no. 611006) and 20-years-old Observer Sergeant Kenneth Charles Tucker (RAF no. 755162).
They had been intercepted by two CR.42s from 368^a Squadriglia flown by Tenente Armando Capogrossi and Sergente Audibert, which flew a patrol between 15:30-17:30. Two Blenheims were spotted by the patrol and Tenente Capogrossi shot down one in flames north-east off Tripoli and damaged the second with the use of 200 rounds of 12.7mm and 360 rounds of 7.7mm 360.

Tenente Capogrossi was decorated with his first Medaglia d’argento al valor militare (gazetted 1942) for his actions between January and July 1941:

"A fighter pilot, in numerous war actions, with quick intervention, he succeeded in thwarting enemy offenses. During an air attack on our naval air base, after spotting two enemy bombers, he single-handedly pursued them, managing to shoot one down in flames. In missions of escort and interception of maritime convoys, protection for bombing raids, and air defence, he consistently demonstrated his qualities as a brave combatant."
Sky of North Africa and the Mediterranean, January-July 1941-XIX.

Tenente Capogrossi was decorated with his second Medaglia d’argento al valor militare (gazetted 1952) and the Croce di guerra al valor militare (gazetted 1944) for his actions between November 1941 and March 1943. The citation for the Croce di guerra al valor militare stated:

"Valiant fighter pilot officer, he participated in numerous and dangerous war missions in the skies of North Africa and the Central Mediterranean, protecting naval convoys and aircraft. With direct interventions through dive-bombing and strafing, he consistently demonstrated skill and courage, contributing to the success of these missions."
Sky of North Africa and the Central Mediterranean, November 1941 - March 1943.

Capogrossi ended the war with 1 biplane victory.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1941
1	18/07/41	15:30-17:30	1	Blenheim (a)	Destroyed	Fiat CR.42		NE off Tripoli	368a Squadriglia
	18/07/41	15:30-17:30	1	Blenheim	Damaged	Fiat CR.42		NE off Tripoli	368a Squadriglia

Biplane victories: 1 destroyed, 1 damaged.
TOTAL: 1 destroyed, 1 damaged.
(a) Blenheim Z9582 of 110 Squadron shot down and the crew KIA.

Sources:
53^o Stormo - Marco Mattioli, 2010 Osprey Publishing, Oxford, ISBN 978-1-84603-977-5
A History of the Mediterranean Air War 1940-1945: Volume One – Christopher Shores and Giovanni Massimello with Russell Guest, 2012 Grub Street, London, ISBN 978-1908117076
Elenco Nominativo dei Militari dell’ A. M. Decorati al V. M. Durante it Periodo 1929 - 1945 1 Volume A - L
Malta: The Hurricane Years 1940-41 - Christopher Shores and Brian Cull with Nicola Malizia, 1987 Grub Street, London, ISBN 0-89747-207-1
Istituto del Nastro Azzurro
Royal Air Force Bomber Losses in the Middle East and Mediterranean, Volume 1: 1939-1942 - David Gunby and Pelham Temple, 2006 Midland Publishing, ISBN 1-85780-234-9
Additional information kindly provided by Ludovico Slongo and Phillip Tucker