Italy
Sergente Maggiore Natale Viola
25 December 1912 – 19 November 1940
Date | Decoration | Note |
??/??/41 | Medaglia d’argento al valor militare | 1940-43 |
??/??/40 | Croce di guerra al valor militare (1st) | O.M.S. |
??/??/40 | Croce di guerra al valor militare (2nd) | 1940-43 |
Natale Viola was born on 25 December 1912 in Novara.
Viola served as a volunteer in the Spanish Civil War and was decorated for this.
In June 1940, Sergente Maggiore Natale Viola served in the 363a Squadriglia, 150o Gruppo C.T. This unit was at the time equipped with Fiat CR.42s.
On 15 June 1940, the Italian Headquarters ordered the 150o, 18o and 23o Gruppi C.T. to attack the French airfields in Le Cannet des Maures (2km south-east of Le Luc) and Cuers Pierrefeu (close to the naval base of Toulon), in Provence, with the purpose of destroying and disrupting the French fighter force on the ground.
Le Cannet des Maures was the base of the GC III/6, which had arrived there on 3 June with its Morane Saulnier MS.406 fighters and was in the midst of converting from that type to the new Dewoitine D.520 (on 15 June 1940 the groupe had at least 13 D.520s on hand). The airfield of Cuers Pierrefeu was the base of the escadrille de chasse AC 3 of the Aéronautique Navale, equipped with eleven Bloch 151 fighters, and the escadrille de bombardement en piquè AB 3 of the Aéronautique Navale, equipped with eleven Vought 156 dive-bombers.
At noon 25 CR.42s from the 23o Gruppo departed from Cervere (a small town in Piedmont near the French border) to attack Le Cannet Des Maures airfield. The first group, under the command of Maggiore Tito Falconi (CO of the 23o Gruppo in a CR.42 from the 70a Squadriglia) was to make the strafing attack. The group was composed of Capitano Luigi Filippi (CO of the 75a Squadriglia), Tenente Mario Rigatti, Tenente Calogero Mazza, Sottotenente Malvezzi, Maresciallo Luigi Pasquetti, Sergente Maggiore Renzo Borro, Sergente Maggiore Davini, Sergente Maggiore Germano Gasperoni (all from the 75a Squadriglia), Capitano Guido Bobba (CO of the 74a Squadriglia), Sergente Maggiore Arnaldo Sala and Sottotenente Domenico Tessera (all from the 74a Squadriglia). The rest of the formation, with fighters from all three Squadriglie, was to act as top cover. This formation was composed of Capitano Ottorino Fargnoli (CO of the 70a Squadriglia), Tenente Claudio Solaro (70a Squadriglia), Sottotenente Oscar Abello (70a Squadriglia), Tenente Ezio Monti (75a Squadriglia), Sergente Maggiore Balilla Albani (70a Squadriglia), Sergente Carlo Scarselli (70a Squadriglia), Sergente Maggiore Celso Zemella (70a Squadriglia), Tenente Lorenzo Viale (74a Squadriglia), Tenente Mario Benedetti (74a Squadriglia), Tenente Mario Pinna (74a Squadriglia), Sergente Maggiore Renzo Bocconi (74a Squadriglia), Sergente Raffaele Marzocca (74a Squadriglia) and Sergente Emilio Stefani (74a Squadriglia).
They arrived over the target at 13:00 and attacked under heavy AA-fire. They claimed to have hit fifteen “Curtis” fighters and four old bombers that lay on the sides of the airstrip, in particular Capitano Bobba claimed hits on three aircraft as did Sottotenente Tessera while Sergente Sala claimed to have hit two aircraft on the ground (it seems that at least three D.520s were destroyed when Dewoitine D.520 nos. 257, 294 and 304 of GC III/6 went up in flames).
During the strafing a number of French fighters identified as “four or five Morrane” or alternatively “Dewoitine” engaged the strafing Fiats. Capitano Filippi (MM4361), was shot down by Adjutant Pierre Le Gloan of GC III/6. Filippi baled out and was captured. Maresciallo Pasquetti claimed a “Morane” but was also hit, wounded (reportedly by AA fire but possibly by Le Gloan) and returned to Cervere despite large problems. He was later decorated with the Medaglia d’argento al valor militare in the field for this mission. Tenente Rigatti’s and Sottotenente Malvezzi’s fighters were also damaged (reportedly by AA). Among the pilots of the covering patrol, Sergente Stefani claimed a “Morrane”, Tenente Benedetti a probable “Morrane” and Sergente Marzocca a damaged “Morrane”. The pilots of the 70a Squadriglia reported an indecisive engagement with no losses caused or suffered and finally Tenente Viale had his fighter seriously damaged by an explosive bullet that hit the junction between the lower wing and the fuselage. Back at base the plane was declared RD (Riparabile in Ditta - Repairable but only in the manufacturer’s workshop) and sent to the Aeritalia-Fiat workshops in Turin.
The pilots of the 23o Gruppo observed that despite hits on aircraft on the ground they hadn’t burnt. This was found to have been caused by a defective batch of incendiary ammunition.
The formation from the 150o Gruppo departed from Villanova D’Albenga (in Liguria near the sea) at 12:00 and was composed of 27 Fiat CR.42s divided in three groups. Their target was the airfield of Cuers Pierrefeu and they arrived there at 13:00. A first group of eight aircraft commanded by Capitano Giorgio Graffer (CO of the 365a Squadriglia) and composed of Tenente Franco Gatti, Sottotenente Lorenzo Clerici, Maresciallo Felice Sozzi, Maresciallo Virginio Bodini, Sergente Maggiore Guido Fibbia, Sergente Maggiore Felice Squassoni and Sergente Bruno Zotti (all from the 365a Squadriglia) attacked the airfield of Cuers itself. A second group of nine fighters from the 363a Squadriglia led by the Gruppo CO Tenente Colonnello Rolando Pratelli (Capitano Luigi Mariotti (Squadriglia CO), Tenente Pietro Garfagnoli, Sottotenente Mario Daverio, Maresciallo Giuseppe Salvadori, Sergente Maggiore Viola, Sergente Maggiore Bruno Benassi, Sergente Paolo Rossi, Sergente Antonio Lazzari) and a third group of eight aircraft from the 364a Squadriglia under command of the 53o Stormo commander Colonnello Arrigo Tessari (Capitano Nicola Magaldi (Squadriglia CO), Capitano Nino Caselli, Tenente Giuseppe Enrico Zuffi, Tenente Alberto Spigaglia, Maresciallo Delfino Fratini, Maresciallo Ugo Guidi, Sergente Maggiore Virgilio Pongiluppi, Sergente Giovanni Negri and Sergente Achille Pacini) covered Graffer and his men during the strafing attack.
The covering group led by Colonnello Tessari engaged six French fighters, while Graffer’s group, after four or five strafing passes enter combat against “Morane fighters” while regaining height. All in all four Morane were claimed shot down (all Bloch 151s from AC 3 and confirmed with French records) and 15 Moranes were claimed on ground (in fact at least six Vought 156s of AB 3 were destroyed). The victories were credited as “shared” to all the pilots of the Gruppo.
The aircraft of Capitano Nino Caselli (MM5579) and Tenente Zuffi of the 364a Squadriglia (MM5590) were lost. Caselli’s Fiat was shot down by French fighters and he was killed, while Zuffi landed on Cuers Pierrefeu undamaged due to a breakdown of the throttle. Zuffi was taken prisoner and his undamaged fighter was taken by the French (the only aircraft captured by the Aéronautique Navale), which in the following days painted it with French colours and duly photographed this trophy with pilots posing near it. After the war the Italians had to do great efforts with the Vichy Authorities to finally have back the fighter in August. Additionally the Fiats of Graffer and Clerici were damaged by French fighters during the dogfight.
Finally, 15 Fiat CR.42s the 18o Gruppo took off from Villanova D’Albenga immediately after the 150o Gruppo. They patrolled along the direction of Cuers Pierrefeu - Cannet des Maures - Hyères (the latter an airfield 13 km east of Toulon) to prevent any interference from the French fighter force. Led by the 18o Gruppo’s CO Maggiore Ferruccio Vosilla the formation was composed by Capitano Giulio Anelli (CO of the 85a Squadriglia), Tenente Giulio Cesare Giuntella and Sergente Maggiore Giuseppe Ruzzin of the 85a Squadriglia, Capitano Gino Lodi (CO of 95a Squadriglia), Sottotenente Eugenio Salvi, Maresciallo Felice Longhi, Maresciallo Giovanni Ferrari and Sergente Maggiore Giacomo Grillo of the 95a Squadriglia (Vosilla flew with Salvi and Longhi as wingmen) and finally the 3o Stormo Commander Colonnello Fortunato Rolando in a 83a Squadriglia fighter with Maresciallo Francesco Colombo and Sergente Maggiore Evdo Formentini as wingmen together with Capitano Edoardo Molinari (CO of 83a Squadriglia), Sottotenente Carlo Lolli and Maresciallo Gaetano Bortolini.
At a height of 5500 meters over Beau Champ they were intercepted by enemy fighters, which suddenly appeared from a cloud bank. They were identified as “Morane 406 plus another type not sure” and in the ensuing combat three of them were claimed shot down plus four others hit without being able of ascertain the damage inflicted (these claims can’t be verified with French sources). It seems that no individual credit was given for these victories that went as shared to all the fifteen pilots participating in the mission. During the combat, two aircraft of the 83a Squadriglia were lost when Sergente Maggiore Formentini (MM4449) and Maresciallo Colombo (MM4366) both were shot down and killed (both were probably shot down by Le Gloan and Assolant of GC III/6, which had attacked the “vic” of the Stormo commander). All the fighters of the 85a Squadriglia suffered gun-jams and were forced to flee, Capitano Anelli, in particular, had to escaped into clouds to get away from enemy fighters, got lost and was obliged to force-land at Dorniella near Grosseto in Tuscany where his plane (MM4372) broke the landing gear and was heavily damaged (RD). Finally Maresciallo Gaetano Bortolini’s Fiat was hit by a cannon shell that opened a hole of 60 centimetres in the upper wing. Later during the day two more fighters were heavily damaged (RD) on landing back in Villanova D’Albenga returning from scrambles because of the bad conditions of the ground flooded by heavy rain but this was not connected with the above described combat.
The French reported that in the early hours of 15 June bad wheatear halted flight activities, then, at mid morning, it cleared up. At 10:00, a patrouille composed by Adjutant Diaz, Sergent Pimont and Sous-Lieutenant Stage took-off to cover the reconnaissance mission of a Potez 63. The mission was completed successfully.
At 11:40, the fighter control centre of Toulon signalled big formations of heavy fighters and bombers passing the border and heading south-west. Five minutes later a patrouille simple (three planes group) of Dewoitine D.520s (Adjutant Pierre Le Gloan, Capitaine Jacobi and Capitaine Assolant) of the 5th escadrille of groupe de chasse III/6 (GC III/6) took-off.
The patrouille made for Saint Raphael (on the coast, near the Italian border), where a group of fifteen enemy planes was signalled.
Four minutes later (11:49), a second patrouille simple (Capitaine Guerrier, Adjutant Japiot, Sous-Lietuenant Capdeviolle), this time of the 6th escadrille, took off to help the first. However, it took off to late and didn’t participate in the combat.
After arriving over Saint Raphael, the patrouille of Le Gloan received by radio the order of going over Saint Tropez (around 30km south-west). At the same time, Capitaine Jacobi was forced to turn back with engine problems.
Le Gloan saw a formation of twelve Fiat CR.42s in the direction of Saint Tropez heading south-west. He reached them rapidly and attacked at 12:00. In a brief combat, Le Gloan and Assolant claimed two shared aircraft shot down. These were the last two aircraft of the Italian formation and one of the Italian fighters (Maresciallo Colombo of the 83a Squadriglia) was seen to go down in flames near Beauvallon (4km south of Grimaud) while the other went down in flames near Ramatuelle; the pilot was seen to bale out (probably Sergente Maggiore Evdo Formentini of the 83a Squadriglia).
At this moment the two pilots of the patrouille was split up. Le Gloan turned over Saint-Tropez and lost contact with the enemy while Capitaine Assolant attacked a third Italian fighter (perhaps Maresciallo Bortolini of the 83a Squadriglia), but his guns ceased to fire and he had to disengage coming back to Le Cannet des Maures.
Adjutant Le Gloan in the meantime, saw anti-aircraft fire in the direction of Hyères airfield (being over Saint Tropez this direction is quite close to the direction of Toulon-Cuers Pierrefeu that was under attack at that moment). Le Gloan flew in that direction and discovered a group of three Fiat CR.42s heading east. He attacked the right hand Fiat of the group and saw that after the first burst of fire it went down near Saint-Amèe, in the bay of Pampalonne. This claim is not confirmed with Italian records but perhaps claimed in combat with an aircraft from 150o Gruppo returning from the attack on Cuers or alternatively against stragglers of the 18o Gruppo formation. He was then attacked by eight Italian fighters and he disengaged by diving away.
At the same time (around 12:15), he received by radio the order of coming back to Le Cannet des Maures which was under attack. He obeyed immediately, arriving over his airfield while the Italians were strafing it. He dived on a couple of fighters and with a single burst of cannon fire he shot down one of them (Capitano Filippi). This plane went down near the farm of the Thermes, just 1km from the airfield of Le Cannet. Continuing his patrol Le Gloan saw a Fiat BR.20 bomber flying a reconnaissance mission over Le Cannet des Maures, probably with the aim of checking the damage inflicted to the airfield. Le Gloan attacked it and, even with no more cannon ammunitions left, shot it down with five passes of his remaining four guns. The bomber fell down near the farm of the Moulin Rouge. This was Fiat BR.20 MM21873 of the 172a Squadriglia Ricognizione Strategica, which in fact went down over Le Luc. Two of the crew were killed; Aviere scelto motorista Giovanni Bonanno and Aviere scelto fotografo Egisto Di Croce. The rest of the crew were taken POWs; Maggiore Mario Salvadori (an intelligence Officer from the Air force HQ aboard as a passenger), Capitano Giorgio Parodi (the Squadriglia’s CO) and Aviere scelto armiere Attilio Imparato. Bonanno was posthumously decorated with the Medaglia d’Oro al valor militare for this action because he helped his commander, who was wounded, to jump out of the falling plane, but after that he was unable to jump himself and died in the subsequent crash.
At Cuers Pierrefeu (attacked by the 150o Gruppo), the French reported that the Italian fighters attacked the parked Voughts of AB 3 and destroyed six of them. A section of three fighters of AC 3 had taken took off just minutes before the Italian attack. It was commanded by the Enseigne de Vaisseau Carmeille and included Second-Maitres Saint Vanne and Heff. The section had to patrol between Le Luc en Provence and St Raphael. Near the first locality it became involved in combat with 15 Italian fighters (possibly the 18o Gruppo). The section didn’t claim anything and didn’t suffer any losses even if, later, it was credited with two shared Italian fighters shot down. After this combat, the three pilots went on patrolling over Toulon.
Two other sections of AC 3 took off while the Italians arrived over Cuers. The section commanded by the Lieutenant de Vaisseau Ziegler (CO AC 3) was composed by the Second-Maitres Miramont and Briet. Gaining altitude over Cuers the section was attacked by the Italian fighters. Ziegler had his Bloch 151 (numbered AC3.1, serial number 77) seriously damaged and wounded, he was forced to crash-land at base with his left landing gear cut in half. Briet was rapidly in difficulties under the attack of the numerically superior Italians, with the ailerons damaged and the reservoir holed he disengaged, rejoining the first section over Toulon. Miramont engaged combat north-east of the airfield, over the hills of Hyères. His Bloch 151 (numbered AC3.3, serial number 69) was seriously damaged, but in the heat of the fight, he found himself 50 meters behind a Fiat CR.42 (Capitano Nino Caselli) and with a single burst of his four MAC guns he shot it down. Miramont was not able to continue the fight after this and had to land at Hyères.
The third section of AC 3 suffered worst. It was commanded by the Adjutant Chef Hourcade (a pilot of the Armée de l’Air attached to the Aéronautique Navale since 1939) (Bloch 151 AC3.15 serial 51) and included Soulimont (Bloch 151 AC3.8 serial 348) and Second-Maitre Le Bihan (Bloch 151 AC3.9 serial 37). A few second after the take-off, Hourcade was shot down and killed by the marauding Fiats; Soulimont engaged the Italians but was immediately put out of action and obliged to force-land with his aircraft riddled with bullets. Le Bihan received a burst of fire in the engine and five minutes after took-off had to land in the narrow of Rocbaron. Unfortunately, his plane hit a tree and burst into flames hitting the ground. He succeeded in extricate himself from the burning wreck, but died five hours later at the hospital. Some time later Le Bihan was credited with an aerial victory obtained by collision, but looking in the initial reports of this combat there is no trace of this victory.
It is interesting to note that all of Le Gloan’s claims were homologated by the CO of the Zone D’Opérations Aériennes Alpes (ZOAA). (“L’homologation” was the definitive confirmation of an aerial victory corroborated by evidences, was a recognition quite difficult to obtain in the French Air Force). The victories were credited as follows:
Fiat CR.42 individual, Ramatuelle.
Fiat CR.42 shared with Assolant, Saint-Amé bay of Pampelonne.
Fiat CR.42 individual, Beauvallon.
Fiat CR.42 individual , ferme des Termes near Le Luc.
Fiat BR.20, ferme du Moulin-Rouge near Vidauban.
That is not in complete accordance with the reconstruction above. It is also interesting to note that the victories claimed by AC 3 were apparently not homologated.
On 23 October, the 150o Gruppo moved to Albania and became an Autonomo unit.
During November, the 363a Squadriglia was detached to the 160o Gruppo.
On 19 November 1940, 'B' Flight of 80 Squadron, which recently had arrived to Greece to reinforce the Greek fighter forces, flew up to Trikkala during the morning. After refueling, nine Gladiators took off at 14:10, led by three Greek PZL P.24s (23 Mira), for an offensive patrol over the Koritza area. Squadron Leader William Hickey led the Gladiators.
When they neared the Italian airfield at Koritza the PZLs were obliged to turn back due to their short range. The Gladiators flew over Koritza were Italian anti-aircraft opened up. Flight Lieutenant 'Pat' Pattle, who were leading the second section, sighted four Fiat CR.42s climbing towards them from the starboard beam.
It had been arranged beforehand that the Gladiators would not use their radiotelephones unless it was absolutely essential, because they had discovered in the desert that the CR.42s used a similar wavelength; by listening in to the Gladiators, the Italians received prior information of an attack. Pattle warned Hickey of the presence of the CR.42s simply by diving past the Commanding Officer's section and pointing his Gladiator towards the Italian aircraft. Hickey acknowledged that he understood by waggling his wing and Pattle withdrew to his position at the head of his section.
As Hickey’s section dived towards the four CR.42s, Pattle noticed a second group of two more CR.42s and took his section, consisting of Pilot Officer 'Heimar' Stuckey and Sergeant Charles Casbolt, to engage these. Pattle went for the leading CR.42, which attempted to evade the attack by diving steeply and slipping from side to side. Pattle followed, closing in rapidly, but he didn't fire until the CR.42 straightened out and thereby offered a steadier target. From 100 yards astern, he lined up the CR.42 in his sight and opened fire. The CR.42 steepened its dive; the pilot had apparently been hit, because he fell forward over the control column. Pattle pulled away, as the CR.42 went straight down to crash about two miles west of Koritza, bursting into flames on striking the ground. Stuckey, following close behind Pattle's Gladiator, smiled and gave a thumbs-up signal to Pattle signifying confirmation of the victory.
The two Gladiators, now completely alone, climbed up to 15,000 feet immediately over the airfield, and saw a dogfight in progress a few miles to the north. Heading in that direction, they were soon engaged by five CR.42s and two G.50s. One of the G.50s came at Pattle in a head-on attack, but broke away much too early, the tracers passing yards below the Gladiator. A CR.42 had a go next, but Pattle quickly snap-rolled, up and over the Italian aircraft, and came down perfectly in position fifty yards behind the CR.42. A short burst and the cockpit of the CR.42 became a mass of flames and it fell away burning furiously. After this combat he noticed that his air pressure were so low that he couldn't fire his guns and he soon returned to base.
Totally in this combat the British pilots claimed nine and two probables shot down. Apart from Pattle's two CR.42s, Stuckey claimed one G.50, which crashed, and one CR.42, Flight Lieutenant Greg Graham claimed one G.50 and one CR.42, Pilot Officer Samuel Cooper claimed one shared CR.42 with Pilot Officer William Vale, who also claimed one additional CR.42, Sergeant Charles Casbolt claimed one G.50 and finally Flying Officer Sidney Linnard claimed two CR.42s as probables.
Pilot Officer Stuckey was hit in the combat by CR.42s and wounded in the right shoulder and leg. He was saved from being finished off by Squadron Leader Hickey, who managed to driving away the CR.42s and then escort him back to Trikkala from where he would be dispatched to the Greek Red Cross hospital in Athens.
Pilot Officer Vale reported:
"Nine Gladiators and three PZLs took off from Trikkala in four flights of three aircraft to carry out an offensive patrol over Koritza. I was flying in the second flight as No.2 to F/Lt Pattle. We arrived over the area at approximately 1440 hours and after patrolling for about five minutes two CR42s were seen approaching our formation at 14,000 feet from starboard ahead. The signal for line astern was given by the flight leader, who immediately attacked the enemy aircraft, which broke formation. F/Lt Pattle engaged one CR42 and after a shot dogfight shot it down out of control, with smoke coming from the engine.80 Squadron had been involved in combat with Fiat CR.42s of 160o Gruppo Autonomo C.T., which were patrolling over this area, and with G.50bis from 24o Gruppo Autonomo C.T., which were escorting bombers in the same area.
The other CR42 was engage by No.1 Flight. I tried to regain my flight but finally attached myself to two Gladiators in formation, which I found out to be No.1 Flight led by S/Ldr Hickey. We carried on the patrol at about 10,000 feet over Koritza, where we met fairly accurate AA fire. ‘Tally-ho!’ was then given when three CR42s in formation were seen at about 6,000 feet. The formation split up and I dived on a CR42 which was attempting to escape to the north. I carried out a quarter attack and then slid in to an astern position, which I held while the enemy pilot did evasive tactics. He then carried out a manoeuvre which appeared to be a downward roll and I noticed that smoke was coming from his engine. I carried on firing in short bursts until he went between two hills through a small cloud. I followed over the cloud but no enemy aircraft appeared and so I went below into the valley and saw wreckage in a copse – at the same time getting fired at by enemy troops.
I climbed up immediately and at 6,000 feet saw a shiny monoplane with radial engine diving down. I gave chase but was out-distanced and so gave up after firing a short burst at about 400 yards. I gained altitude and observed a Gladiator and a CR42 in a dogfight very low down over the hill, and also noticed that the enemy pilot was attempting to lead the Gladiator over a group of enemy ground forces. I waited until the Gladiator pilot had manoeuvred into an astern attack and then carried out a quarter attack. I noticed that first white smoke and then black was coming from the engine of the e/a before I opened fire. I carried out quarter attacks until the other Gladiator pilot pulled away and then slid into an astern attack.
I remained in that position until very low over the main road and then the CR42 turned over and slid into the side of a hill. The aircraft did not burst into flames. While pulling up I fired at the enemy ground troops. I gained altitude and waggled my wings for the other Gladiator pilot to join me and then found the other pilot was P/O Cooper, who had apparently run out of ammunition. I then set course for home and finally landed at Eleusis, where I refuelled, before proceeding to the base aerodrome. I inspected my aeroplane and found that I had one bullet hole in my tail plane, which had done no damage. In each encounter with CR42s I found that both pilots used the downward roll manoeuvre at high speed for evasive action."
At the time of his death, Viola was credited with 4 shared biplane victories.
Claims:
Kill no. | Date | Time | Number | Type | Result | Plane type | Serial no. | Locality | Unit |
1940 | |||||||||
15/06/40 | 13:00- | 1 | ”Morane” (a) | Shared destroyed | Fiat CR.42 | Cuers area | 363a Squadriglia | ||
15/06/40 | 13:00- | 1 | ”Morane” (a) | Shared destroyed | Fiat CR.42 | Cuers area | 363a Squadriglia | ||
15/06/40 | 13:00- | 1 | ”Morane” (a) | Shared destroyed | Fiat CR.42 | Cuers area | 363a Squadriglia | ||
15/06/40 | 13:00- | 1 | ”Morane” (a) | Shared destroyed | Fiat CR.42 | Cuers area | 363a Squadriglia |
Biplane victories: 4 shared destroyed.
TOTAL: 4 shared destroyed.
(a) Claimed in combat with Bloch 151s from AC 3, which lost four aircraft and got two damaged.
Sources:
Elenco Nominativo dei Militari dell' A. M. Decorati al V. M. Durante it Periodo 1929 - 1945 2 Volume M - Z
Fiat CR.42 Aces of World War 2 - Håkan Gustavsson and Ludovico Slongo, 2009 Osprey Publishing, Oxford, ISBN 978-1-84603-427-5
Gladiator Ace: Bill 'Cherry' Vale, the RAF's forgotten fighter ace - Brian Cull with Ludovico Slongo and Håkan Gustavsson, 2010 Haynes Publishing, ISBN 978-1-84425-657-0
L’Aéronautique navale francaise de septembre 1939 à juin 1940 (Hors série Avions nr.1) - Lucien Morareau, January 1994 Le La Presse, Boulogne sur Mer, kindly provided by Ludovico Slongo
La campagne de France, les combars franco-italiens 10 juin-25 juin (Batailles Aeriennes nr. 11) - Matthieu Comas, January 2000 Le La Presse, Boulogne sur Mer, kindly provided by Ludovico Slongo
Ministero della Difesa
Additional information kindly provided by Ludovico Slongo.