GZINA

R.A.F. Form 441 A. SORTIE REPORT 45 (Part A.) NIGHT OPERATION.

No. One Oprep. Ref. No. 172 (A) Date. 18 JAN 43 Squadron. 21 SAAF. Type of Aircraft. Baltimore Mk. 3. (10) Captain Maj. Jendrell Aircraft No. See attached list. Crew. Capt. Hatswell Aircraft Letter. " " " Lt. te Water Pohl. F/Sgt. Morley All A/C followed the same course at 3/5 minute intervals.

Up. 1800 1837 hrs. (1st. A/C) Down. 2247 2250 hrs. (Last A/C) Aerodrome or L.G. GZINA Time. 3 3 hrs. 13 mins. Type of Cloud. Cumulus on coast MISURATA Westwards. Map or Chart Amount of Cloud. 6/10 Reference. Base of Cloud. 3 - 4000 ft. LIBYA 1 : 500,000 Visibility. Good on route out, hazy over target, Sheet 3/9 MISURATA. General Weather. haze increasing on journey back. Sheet 2 TRIPOLI. Task or Duty. Bomb CASTEL BENITO Aerodrome. Height. Place. Narrative. 1800 First A/C off. 1837 Base S/C GARABULLI 305 M. 3000 8000 EAST Temp. +1. TAMET 3500 8000 B et Crossed coast. RS 5838. TAUARA 7000 12500 Castel Benito - TRIPOLI road. Altered course 40 deg. port, then gradual turn on to target. 5000 8000 Over target. Bombed NORTH to SOUTH. Turn off to right and S/C for "WHITING". 1848 3000 TAMET 2104 1000 SIRTE 2218 500 WHITING Beacon not working. Replaced by alternate. 2247 GZINA Last A/C landed. PART B (on reverse) to be completed according to relevant pro-forma in H.Q. R.A.F. M.E. Instruction 34. PMEJ - 200.000 - 3/42 P.T.O. PART "B"

BA CASTEL BENITO Aerodrome. BB 1928 - 2117 hrs. BC Medium level attack. 8/11,000 ft. 60 x 250 lb. G.P. 43 Det. (Rods) 40 x 4 lb. incendiaries. BD 17 bombs fell along NE corner of aerodrome. 22 " " " NW " " " 12 " " " across aerodrome. 3 " " " short of aerodrome, on NW side. All bombs exploded and seven fires were started. 20 incendiaries were dropped over the aerodrome. The rest, together with 6 x 250 lb. bombs were dropped on lights and MT at RL 6513 and RL 7012. No results were observed. BE 6 Searchlights from aerodrome. Inaccurate. 4 to 6 H.A.A. guns. Inaccurate. L.A.A. slight and inaccurate. BF NIL. BG NIL. BH Fires burning on BENI ULID - TARHUNA track. OXYGEN None available. (Handwritten Signature: [Illegible]) Capt. S.I.O. 21 SQUADRON, S.A.A.F.

1943-01-18 GZINA

R.A.F. Form 441 A. SORTIE REPORT 45 (Part A.) NIGHT OPERATION. No. One Oprep. Ref. No. 172 (A) Date. 18 JAN 43 Squadron. 21 SAAF. Type of Aircraft. Baltimore Mk. 3. (10) Captain Maj. Jendrell Aircraft No. See attached list. Crew. Capt. Hatswell …

__o_O_o__

Form 541

MAP

Transcriber's Notes

Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms: * R.A.F. Form 441 A.: Royal Air Force Form 441 A, the standardized document utilized for recording narrative and technical data for individual aircraft sorties. * Oprep. Ref. No. 172 (A): Operational Report Reference Number 172 (A), representing the primary mission sequence for 18 January 1943. * 21 SAAF: No. 21 Squadron of the South African Air Force. * Baltimore Mk. 3.: The Martin Baltimore Mark III, a twin-engine light bomber provided via Lend-Lease, utilized for tactical interdiction during both day and night operations. * L.G. / GZINA: Landing Ground. Gzina was a forward operational base in Tripolitania used by No. 3 SAAF Wing during the definitive advance on Tripoli. * ft.: Feet, the unit of measurement for altitude, such as the 3,000–4,000 foot cloud base. * S/C / deg.: Set Course and degrees, indicating navigational headings. * GARABULLI: Castelverde (Gasr Garabulli), a location on the coastal road approximately 50 km east of Tripoli. * B et TAUARA: Between Tauorga and the coastal bulge, used as a navigational landfall marker. * WHITING: A code name for a specific navigational beacon or tactical waypoint used for aircraft recovery to Gzina. Operational Context: This Sortie Report (Part A) documents a maximum-effort nocturnal strike conducted by 10 Martin Baltimores of No. 21 Squadron SAAF against Castel Benito aerodrome on 18 January 1943. Strategically, Castel Benito was the primary Axis aviation hub for Tripoli and a critical defensive anchor for the Luftwaffe and Regia Aeronautica. At the time of this raid, the British Eighth Army was in the final stage of its advance toward Tripoli, which would fall only five days later. Tactically, the mission utilized a high-altitude profile, with the formation climbing to 12,500 feet near the Tripoli road to avoid detection and anti-aircraft fire. The aircraft followed a stream profile at 3-to-5 minute intervals to maintain persistent pressure on the target. Despite "6/10" cloud cover and increasing haze, the formation successfully executed a north-to-south bombing run from 8,000 feet. The recovery phase required the use of an alternate navigational beacon at "Whiting" after the primary beacon failed to function. The associated Intelligence Postagram (OPREP 172) confirms that this raid successfully utilized 250lb General Purpose bombs with nose rods ("daisy cutters") and incendiaries to initiate seven fires in the aerodrome's dispersal areas. This document, archived as Folio 45, serves as primary evidence of the SAAF's expanding capability to conduct large-scale, coordinated nocturnal strikes during the definitive collapse of Axis resistance in Tripolitania. 56 Phase 1: Verification & Extraction Identity Check: 18 JAN 43. (Note: While the specific date column is on the associated Part A/Folio 45, this Part B corresponds to the nocturnal mission conducted on 18 January 1943). Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms: * ft.: Feet, the unit of measurement for the release altitude ranging from 8,000 to 11,000 feet. * 250 lb. G.P. 43 Det. (Rods): 250-pound General Purpose high-explosive bombs utilizing No. 43 tail pistols and nose extension rods. These rods, colloquially termed "daisy cutters," triggered detonation just above the surface to maximize the lateral fragmentation blast against soft targets like parked aircraft and vehicles. * 4 lb. incendiaries: Small magnesium or thermite bombs used to illuminate target areas and ignite combustible materials such as fuel stores or wooden structures. * MT: Mechanical Transport. Refers specifically to German and Italian supply and troop vehicle concentrations. * RL 6513 / RL 7012: Specific grid coordinates on the 1:500,000 Tripoli map sheet utilized for precision nocturnal targeting. * H.A.A. / L.A.A.: Heavy Anti-Aircraft and Light Anti-Aircraft artillery fire, respectively. * S.I.O.: Senior Intelligence Officer. The staff officer responsible for synthesizing mission data and filing official tactical reports. * S.A.A.F.: South African Air Force. Operational Context: This Sortie Report (Part B) details the results of a maximum-effort nocturnal strike conducted by No. 21 Squadron S.A.A.F. against Castel Benito aerodrome on 18 January 1943. Strategically, Castel Benito was the primary aviation hub for Tripoli and a critical defensive anchor for the Luftwaffe and Regia Aeronautica. By mid-January 1943, the Mediterranean Allied Air Forces (MAAF) prioritized the neutralization of this facility to deny Axis air cover to retreating ground forces as the British Eighth Army conducted its definitive advance on Tripoli, which fell five days later on 23 January 1943. Tactically, the mission utilized ten Martin Baltimores delivering a high volume of ordnance—60 General Purpose bombs and 40 incendiaries—from medium level. The report provides a high-fidelity account of the strike distribution: 39 bombs successfully hit the N.E. and N.W. dispersal areas, initiating seven fires. Beyond the primary target, the squadron demonstrated tactical flexibility by diverting a portion of the force to interdict "lights and MT" at secondary grid coordinates near Tarhuna, a vital sector where Axis forces attempted to maintain a delaying line. Despite facing searchlights and "fairly intense" heavy anti-aircraft fire, the return of "NIL" casualties reflects the effective use of nocturnal cover. The continued absence of oxygen—a result of missions being undertaken at "short notice"—underscores the high-tempo and improvised nature of air operations during the definitive Axis collapse in Libya. This document, archived as Folio 45, serves as primary evidence of the S.A.A.F.'s expanding technical envelope and its role in the strategic isolation of Tripoli. 57 Phase 1: Verification & Extraction Identity Check: 18th January, 1943.