Oscar Abello was born in Torino on 25 September 1916.

He served as a volunteer during the Spanish Civil War and was decorated for this.

After returning to Italy, he served in the 70^a Squadriglia, 23^o Gruppo, 3^o Stormo. This unit was equipped with Fiat CR.42s.

When the war started on 10 June 1940 the 3^o Stormo was sent to the French border to take part in the attacks on southern France.

Abello took part in the big attack on French airfields on 15 June.

In July 1940 the 23^o Gruppo moved to Sicily and took part in the attacks on Malta.
On 9 July the 23^o Gruppo became Autonomo and the first escort missions over Malta was flown on 12 July. At this time the 70^a Squadriglia was based at Pantelleria.

Shortly after 09:00 on 16 July, a dozen CR.42s of 23^o Gruppo appeared over Malta on a reconnaissance mission. Flight Lieutenant Peter Gardner Keeble in a Hurricane Mk.I (P2623) and Flight Lieutenant George Burges in a Gladiator had been scrambled, and dived on this formation. Keeble attacking one CR.42, but being attacked himself by two more flown by Tenente Mario Pinna and Sottotenente Abello (both from 70^a Squadriglia). After a long chase Keeble was hit and his aircraft dived out of control towards the south-east of the Island where it hit the ground near Wied il-Ghajn and blew up. It was immediately followed by a CR.42 flown by 24-year-old Tenente Mario Benedetti (MM4368) of the 74^a Squadriglia, which crashed within 100 yards of the Hurricane. Keeble was killed outright but Benedetti survived the initial impact of his crash, but died soon afterwards at the civilian hospital at Vincenzo Bugeja without regaining conscious.
Burges made no claim on this occasion, and subsequently it was claimed that Benedetti’s aircraft was brought down with LMG fire by C Company headquarters, 1st Battalion The Dorsetshire Regiment. It is also possible Benedetti’s aircraft was the one attacked by Keeble.
Sergente Maggiore Renzo Bocconi claimed a second Hurricane, but this was not allowed by the 2^a Squadra intelligence staff.
Keeble was the first of Malta's fighter pilots to lose his life in the defence of the island.

Abello was promoted to Tenente soon after this combat.

Around midday on 7 September, ten S.79s from the 36^o Stormo with seventeen CR.42s of the 23^o Gruppo raiding Valetta. Three Hurricanes and three Gladiators were up on this occasion, Flight Lieutenants Greenhalgh and Lambert, and Flying Officer Barber jointly shooting down a 258^a Squadriglia, 109^o Gruppo S.79; a second was claimed probably damaged by the A.A.. The unit commander Tenente Colonello Tito Falconi and Tenente Oscar Abello of the 23^o Gruppo attacked two of the Hurricanes, claiming one shot down each, but both British aircraft escaped with only minor damage.

On 16 December 1940, the 23^o Gruppo (previously part of 3^o Stormo but now Autonomo) with 20 Fiat CR.42s (70^a, 74^a and 75^a Squadriglie) and three hack Caproni Ca.133s arrived in Tripoli to help trying steam Operation Compass, which was mauling the Italian forces. The Gruppo had experienced brief (and quite unlucky) action at the beginning of the war against France, and then it had moved to Sicily where they had seen extensive action against Malta.
They were led by their CO, Maggiore Tito Falconi (a famous aerobatic pilot that had held the world record in inverted flight going in a Caproni 113 biplane racer from St. Louis to Chicago in 1933 and a veteran of the Abyssinian Campaign where he had gained some ground victories and of the Spanish Civil War where he had claimed many (mostly shared) aerial victories) in a 70^a Squadriglia fighter.
Pilots in the 70^a Squadriglia were Tenente Claudio Solaro (acting CO), Tenente Gino Battaggion, Sottotenente Abello, Sergente Ubaldo Marziali, Sergente Balilla Albani, Sergente Maggiore Celso Zemella and Sergente Cesare Sironi.
Pilots in the 74^a Squadriglia were Capitano Guido Bobba (CO and already credited with one over Spain and three individual and a probable Hurricanes over Malta, which made him one of the top scoring Italian pilots up to that moment), Tenente Mario Pinna, Sottotenente Sante Schiroli, Sergente Maggiore Raffaele Marzocca, Sergente Emilio Stefani, Sergente Giuseppe Sanguettoli and Sergente Manlio Tarantino.
Pilots in the 75^a Squadriglia were Tenente Pietro Calistri (CO), Tenente Ezio Maria Monti, Sottotenente Giuseppe De Angelis, Sottotenente Renato Villa, Maresciallo Giovanni Carmello and Maresciallo Carlo Dentis.
The pilots in the Ca.133s were Tenente Marino Commissoli, Sergente Pardino Pardini (70^a Squadriglia), Tenente Lorenzo Lorenzoni (74^a Squadriglia), Tenente Milano Pausi, Sottotenente Leopoldo Marangoni (brother in law of Maggiore Carlo Romagnoli) and Sergente Leo Mannucci (75^a Squadriglia)).
The Gruppo landed at Tripoli-Castel Benito at 17:15. Celso Zemella’s fighter was left behind at Pantelleria after an engine breakdown.

On 19 December the 23^o Gruppo moved to Z1 landing ground at Ain el Gazala.

The last Italian bombing mission of the day on 27 December was again against Sollum. Four SM 79s from the 41^o Stormo under Tenente Colonnello D’Ippolito and four bombers from the 216^a Squadriglia, 34^o Stormo, led by Tenente Romanini took off from Tmini at 14:30.
They were escorted by fighters from the 23^o Gruppo and 10^o Gruppi. Maggiore Tito Falconi was at the head of the formation of the first unit, which also included Tenente Claudio Solaro, Sottotenente Abello and Sergente Ubaldo Marziali from the 70^a Squadriglia, Tenente Mario Pinna, Sottotenente Milano Pausi and Sergente Giuseppe Sanguettoli from the 74^a Squadriglia and Tenente Pietro Calistri, Tenente Ezio Maria Monti, Maresciallo Giovanni Carmello, Sergente Leo Mannucci and Sottotenente Leopoldo Marangoni from the 75^a Squadriglia.
It seems that the bomber formation split and the 41^o Stormo attacked British mechanized units in Halfaya and Gabr Bu Fares under heavy AA that damaged, although slightly, all the aircraft. The SM 79s of the 34^o Stormo attacked ships in Sollum harbour and were intercepted by many Hurricanes. The SM 79s were totally unable to defend themselves because of icing on all the guns and one of them was shot down. This was Sottotenente Aldo Peterlini’s bomber and Peterlini was killed together with three of his crew (Sergente Maggiore Arturo Scagnetti (second pilot), Aviere Scelto Motorista Alcide Frizzera and Aviere Scelto Radiotelegrafista Gioacchino Scuderi). The other two members of the crew (Primo Aviere Armiere Ciancilla and Primo Aviere Montatore Fiore) where able to bale out. Tenente Pandolfi’s aircraft was riddled by enemy bullets (probably RD) while the other two SM 79s were less seriously damaged although suffering some wounded among their crews.
They had been intercepted by 33 Squadron which claimed three SM 79s and one probable and probably two CR.42s during offensive patrols performed by pairs of Hurricanes over Sollum. They also claimed one SM 79 and one CR.42 damaged. Vernon Woodward claimed one of the probable CR.42s and the damaged CR.42.
Falconi’s pilots recorded combat with many Hurricanes, one of which was claimed as probable by the 70^a Squadriglia and six more were damaged. Tenente Solaro and Sottotenente Abello returned with damaged fighters. Solaro had been hit by AA fire and Sottotenente Abello by British fighters. Calistri and his men claimed a shared Hurricane and four more damaged. They landed back at 16:55. A shot down Hurricane was also recorded by the 74^a Squadriglia, which also recorded a SM 79 shot down by AA fire.
The CR.42 escort from the 10^o Gruppo was composed of seven fighters from the 90^a Squadriglia (Tenente Giovanni Guiducci, Tenente Franco Lucchini, Sottotenente Alessandro Rusconi, Sottotenente Neri De Benedetti, Sergente Alfredo Sclavo, Sergente Bruno Bortoletti and Sergente Enrico Botti), six from the 84^a Squadriglia (Capitano Luigi Monti, Tenente Antonio Angeloni, Sottotenente Bruno Devoto, Sergente Maggiore Salvatore Mechelli, Sergente Domenico Santonocito and Sergente Piero Buttazzi) and six from the 91^a Squadriglia (Maggiore Carlo Romagnoli, Capitano Vincenzo Vanni, Sottotenente Andrea Dalla Pasqua, Sottotenente Orlando Mandolini, Sottotenente Ennio Grifoni and Sergente Elio Miotto). Tenente Guiducci reported that the heavy AA immediately hit one of the SM 79s, which was shot down. Then five monoplanes (Hurricanes and Spitfires(!)) tried to attack but were immediately counterattacked and one of them was shot down. Later, another attempt by a lone British fighter failed after the intervention of the Italian escort. The 90^a Squadriglia pilots expanded 320 rounds of ammunition and it seems that in the end the victory was assigned to the whole formation as a Gruppo victory. It seems that it was the same aircraft claimed independently by the two Squadriglie of the 23^o Gruppo.

At 11:00 on 5 January 1941, 202 Group HQ signalled to 274 Squadron to continue the patrols. In the meantime had Flight Lieutenant Peter Wykeham-Barnes (V7558) and Pilot Officer Wilson (N2624) already taken off at 10:30 and 10:45 respectively. They were followed by Flying Officer Arthur Weller (P2544), Flying Officer Ernest Mason (P3722), Second Lieutenant Robert Talbot (P3721) and Squadron Leader Patrick Dunn (P3723), taking off between 11:00 and 11:30. This group of pilots would experience a lot of action.
At 12:20 alternatively 12:30, Flying Officer Mason and Second Lieutenant Talbot arrived independently but keeping visual touch over Ain el Gazala. Mason, who was flying at 3500 feet, saw two CR.42s in a vic, 2000 feet below him and approached the leader unobserved. He hit him with a burst, seeing him stalling and diving vertically into the ground and bursting out in flames. The no. 2 in the meantime turned away and attempted to make a head on attack. A burst from the eight guns of Mason made him turn over and dive into the deck where the CR.42 burst into flames too. In the meantime, Talbot stayed higher and saw five CR.42s in a scattered formation, which looked as if they were diving on Mason. Unobserved he performed a stern attack on the leader who stalled and dived into the ground. When the two 274 Squadron pilots left the scene, three CR.42s were seen burning on the ground. Mason reported:

”in the afternoon we went there [Gazala airfield] again and circled over the aerodrome. Suddenly I saw two CR42s approaching to land. I dived down and came up behind. I gave the leader a burst and as I shot past him he turned slowly and dived straight in the middle of the aerodrome and exploded. In the meantime the other chap had turned and came for me head on. I gave him a short burst and he did the same thing. This time on the edge of the aerodrome. By then five more, also returning home, had seen me and were diving on me so Bob shot down the leader and they dispersed.”

At the time of his death, Abello was credited with one biplane victory.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1940
	16/07/40		½	Hurricane (a)	Shared destroyed	Fiat CR.42		over Malta	70a Squadriglia
1	07/09/40		1	Hurricane (b)	Destroyed	Fiat CR.42		Valetta	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared probably destroyed	CR.42		Sollum area	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared damaged	CR.42		Sollum area	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared damaged	CR.42		Sollum area	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared damaged	CR.42		Sollum area	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared damaged	CR.42		Sollum area	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared damaged	CR.42		Sollum area	70a Squadriglia
	27/12/40	14:30-	1/3	Hurricane (c)	Shared damaged	CR.42		Sollum area	70a Squadriglia

Biplane victories: 1 and 1 shared destroyed, 1 shared probable, 6 shared damaged.
TOTAL: 1 and 1 shared destroyed, 1 shared probable, 6 shared damaged.
(a) Flight Lieutenant Peter Gardner Kebble of Hal Far Fighter Flight, flying in Hurricane (P2623); shot down and killed.
(b) Regia Aeronautica claimed two Hurricanes in this combat but both British aircraft escaped with only minor damage.
(c) Claimed in combat with Hurricanes from 33 Squadron, which claimed two probable CR.42s and one damaged without losses. The 10^o and 23^o Gruppi claimed 3 Hurricanes and 1 probably shot down with another 10 damaged while suffering 3 damaged CR.42s.

Sources:
Battle over Malta - Anthony Rogers, 2000 Sutton Publishing Limited, Gloucestershire, ISBN 0-7509-2392-X
Desert Prelude: Early clashes June-November 1940 - Håkan Gustavsson and Ludovico Slongo, 2010 MMP books, ISBN 978-83-89450-52-4
Desert Prelude: Operation Compass - Håkan Gustavsson and Ludovico Slongo, 2011 MMP books, ISBN 978-83-61421-18-4
Elenco Nominativo dei Militari dell’ A. M. Decorati al V. M. Durante it Periodo 1929 - 1945 1 Volume A - L
Hurricanes over Malta - Brian Cull and Frederick Galea, 2001 Grub Street, London, ISBN 1-902304-91-8
Hurricanes over Tobruk - Brian Cull with Don Minterne, 1999 Grub Street, London, ISBN 1-902304-11-X
Malta: The Hurricane Years 1940-41 - Christopher Shores and Brian Cull with Nicola Malizia, 1987 Grub Street, London, ISBN 0-89747-207-1
Storia Aeronautica Italiana
Additional information kindly provided by Ludovico Slongo.