Operation

21 Squadron S.A.A.F. Oprep No. 976 Operation Ni. 178/21s/M 24th March, 1945 RAID ON CASARSA M/YARDS. T/Off:- 1150 Hrs. 575 P : Maj. Dieu Parsonson Hatswell Durrant Mitchell Peckitt 566 S : Lt. Becke Meyer Bailey Heale McCausland Gidlow 471 R : P/O Long Gaum Johnstone Fisher Griejbe Eave. 513 Hv: Lt. Hussey Quaife Wells Boast Kennedy Pienaar 561 B : Lt. Isted Lt. Williams Gelb Bedford Botha Collins 572 J : Lt. Reyneke Cordell Kockett Hennesey Cloete Tennant 535 K : Lt. Stuart Ramsay Owen Hughes Fraser Howden Du Plessis 572 J : F/O Hanna Callaghan Naude Naude Oldfield van de Berg Paxton 577 U : Lt. Granger P/O Stuart Harle Kruger Wood Adams 550 C : Lt. Watermeyer Goble Butler Trivett Venter Wilding 583 V : Lt. von Heldt Dore Main King Stephen Ceronio ANTI FLAK:) 537 YY: Lt. Muir Dale Lister Malan Foster Rourke 474 D : Lt. Fraser Jandrell du Plessis Barrow Jenner Richardson. TIMES:- 3.00 Hrs. all A/C except 535 K : Lt. Stuart. . . .1.10 Hrs. Handwritten Marginalia / Stamps: * Folio Number: 175 (Handwritten, Top Right). * Reference Stamp:

1945-03-24

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Form 541

MAP

Transcriber's Notes

Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms * AIR 27 / 271: The United Kingdom National Archives (TNA) classification for Air Ministry: Operations Record Books (ORBs). Series 271 specifically catalogs the operational history and mission appendices for 21 Squadron SAAF. * ANTI FLAK: A tactical designation for aircraft assigned to suppress enemy anti-aircraft ground batteries during the bomb run. In this mission, aircraft 537 YY and 474 D were tasked with this role. * BA-BH (Martin Baltimore): The primary twin-engine tactical medium bomber (Marks IV and V) operated by 21 Squadron SAAF during the final stages of the Italian Campaign. While not explicitly labeled in the document, the aircraft letters (P, S, R, Hv, B, J, K, U, C, V, YY, D) and numbers (575, 566, 471, etc.) refer to the unit's Baltimore inventory. * M/YARDS (Marshalling Yards): Extensive railway sorting hubs used to sort rolling stock for transport. The target for this mission was the yards at Casarsa della Delizia, Italy. * MC/GP (Medium Capacity / General Purpose): Standard high-explosive ordnance, typically 250lb or 500lb bombs, carried by Baltimore crews for the interdiction of logistical and rail targets. * MET (Meteorological Report): Critical atmospheric data required for navigating trans-Adriatic and Alpine flight paths to reach targets in North-East Italy. * OPREP: Operational Report. OPREP No. 976 provides the formal summary for Operation Ni. 178/21s/M. * T/Off (Take-off): Recorded as 1150 hours on 24th March, 1945. Operational Context Target File 271-3_125 documents a 13-aircraft formation strike on March 24, 1945, directed against the Casarsa della Delizia Marshalling Yards in Italy. Casarsa was a critical logistical node on the rail network connecting North-East Italy to the Austrian border via the Tarvisio pass. By the spring of 1945, the Mediterranean Allied Air Forces (MAAF) were engaged in Operation Bingo, a strategic aerial interdiction campaign designed to isolate German Heeresgruppe C in Northern Italy by severing supply and escape routes through the Alpine passes. This methodology of systematically pulverizing transit hubs like Casarsa represents the final evolution of the interdiction doctrine used during the 1943 battles for the Bernhardt and Gustav Lines. In November 1943, 21 Squadron SAAF conducted high-intensity strikes on localized bottlenecks, such as location H055630, to maintain tactical pressure and prevent German reserves from reaching the front lines. By March 1945, the tactical focus had transitioned to achieving total strategic paralysis of the enemy’s rear echelons to prevent a coherent fighting withdrawal. The mission was led by Major Dieu in aircraft 575 P. The archival record indicates a partial failure for aircraft 535 K (Lt. Stuart), which returned to base (RTB) after only 1 hour and 10 minutes, while the rest of the formation completed a 3-hour sortie. This raid occurred as Allied air superiority reached its peak, with kinetic strikes by Martin Baltimores often coordinated with "Nickel" propaganda sorties to inform isolated Axis troops of the ongoing collapse of the Third Reich. 126 Phase 1: Verification & Extraction Identity Check: 25th MARCH, 1945