[3] He became a civil pilot (1936) but failed in his efforts to join the Italian Royal Air Force (Regia Aeronautica), due to a minor nasal problem.

He finally succeeded in entering the service as a temporary Sottotenente in 1937 and got a military aviation license that allowed him to fly combat missions in World War II.

He was sent to 95a Squadriglia of 18° Gruppo, based at the Albenga airfield, during the fighting against France and was then assigned to the Italian Air Corps (Corpo Aereo Italiano).

"[4] Bordoni, who had his nickname "Robur" (related to the family brand) painted on his plane, obtained his first air victory on 10 March 1941: flying a Fiat CR.42 for 95a Squadriglia, he shot down a Bristol Blenheim, 100 kilometres (62 mi) east of Benghazi.

[5] According to other sources, Bisleri shot down the Hurricane Mk.I V7553 "TP-E" of Flight Sergeant Herbert Garth Webster (RAF No.

In May, while his unit was stationed in Benghazi, he was promoted to Tenente and was awarded his first Medaglia d'argento al valore militare and the German Iron Cross.

On 2 June he shot down two more Blenheims, over the Port of Benghazi and 20 kilometres (12 mi) off the coast, but his CR.42 was damaged by defensive fire.

Six days later, on 26 October, Bordoni-Bisleri (83a Squadriglia, 18° Gruppo) with eleven other pilots of 3° Stormo and seven from 4° (all flying 202s) attacked a wide formation of thirty Kittyhawks and seventeen Spitfires covering twelve Bostons and six Baltimores, in the Fuka and Daba areas.

Near their airfield at Abu Smeit, Bordoni-Bisleri shot down one of the Curtiss fighters that, moments before, had hit Pinna, forcing him to bale out badly wounded in his face and on his hands.

Flying his C.205, Bordoni-Bisleri shot down a B-17 (kill number 13) over Pratica di Mare, firing 800 rounds of 12.7 mm ammunition.

On 21 August, still flying a C.202, he fired 630 rounds of 12.7 mm ammunition at a B-17 that fell near the Pomigliano d' Arco railway station (Naples).

On 5 September 1943, just three days before Italian armistice of Cassibile he shot down a B-17 Flying Fortress, off Civitavecchia, on the Latium coast.

After the war, Bordoni became president of the family's liquor company and started a career in sports car racing.

He drove a Maserati 300S in the 10 Hours of Messina, the RAC Tourist Trophy at Dundrod and won his second Trieste-Opicina hillclimb with it.

He was coming back from Rome after a commemoration of parachutists, attended by Pope Paul VI and organized by the Aero Club of Milan, of which he was President.

Near Chiavari, in Liguria, they met a heavy storm and the plane crashed on Mount Anchetta, fatally injuring everybody on board.