Operation

APPENDIX "S" 215 FROM : S.I.O. 21 SQUADRON S.A.A.F. TO : W.I.O. 3 WING S.A.A.F. H.Q. M.A.A.F. ( ATTENTION OPERATIONS RECORDS) H.Q. M.A.T.A.F. ( SCORU) REF. : 21S/1004 DATE : 15th APRIL, 1945. OPREP NO. 1004 FOR THE PERIOD ENDING 1400 HRS. ON THE 15th APRIL, 1945 REF. MAP ITALY 1:100,000 SHEET 88 - IMOLA.

<u>OPERATION NO. 199/21S/M ( 1st Raid)</u>

A : 12 Marauders (4-4-4) airborne between 1145 - 1355 hrs. from Jesi L/G to attack a 29th Panzer Div. concentration with a central pp at M.260635 near ARGENTA in support of the 56th London Div. Formation bombed at 1300 hrs. on courses 240º, 315º and 340º at a height of 10,000'. Due to experiencing difficulty with bombsight, first box did two dummy runs and eventually overshot by about 1000 yards; one A/C did not release and brought bombs back. Second and third boxes straddled briefed area with good overlapping patterns. Moderate inaccurate H/A/A encountered target area. Weather; target clear, visibility hazy. B : (1) 12 Marauders III (ii) Nil C : (1) & (ii) Nil D : (1) 24.00 Hrs (ii) Nil E : (1) 40,800 x .50 (ii) and (iii) Nil F : (1) 72 x 500 Frag (ii) 66 x 500 (iii) & (iv) Nil 48 x 250 Fused 44 x 250 G to Z : Nil S.L. Boshoff [handwritten signature] ___-------------------- Capt. S.I.O. 21 SQUADRON S.A.A.F. 681 SA21 | 668 15APR 45 F14 || HH M 2663 11400 1225 BWG (94)

1945-04-15

__o_O_o__

Form 541

MAP

Transcriber's Notes

Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms * 21 SQUADRON S.A.A.F.: No. 21 Squadron of the South African Air Force, a medium bomber unit operating under the Mediterranean Allied Tactical Air Force (MATAF). * 3 WING S.A.A.F.: No. 3 Wing SAAF, the higher tactical formation overseeing the squadron’s Martin Marauder operations. * 29th Panzer Div.: 29. Panzergrenadier-Division, a highly mobile German mechanized formation currently serving as a primary defensive obstacle in the Argenta sector. * 56th London Div.: The 56th (London) Infantry Division of the British Eighth Army, currently engaged in offensive operations to force the "Argenta Gap." * AIR 27/271/4: The United Kingdom National Archives classification for Air Ministry Operations Record Books (ORBs); Volume 4 contains the final 1945 combat records for 21 Squadron. * BA-BH (Martin Baltimore): The twin-engine medium bomber utilized as the predecessor aircraft to the unit's current equipment. By April 1945, the unit was fully converted to the Martin B-26 Marauder III. * FRAG FUSED (Fragmentation): Anti-personnel and anti-material munitions (72 x 500 lb and 48 x 250 lb) designed to maximize shrapnel effects against "soft" targets such as troop concentrations and unarmored vehicles. * H/A/A: Heavy Anti-Aircraft fire. * JESI L/G: Jesi Landing Ground, the primary operational base for the squadron during the terminal stages of the Italian Campaign. * MC/GP (Medium Capacity / General Purpose): Standard Allied high-explosive ordnance. For this tactical support mission, fragmentation clusters were prioritized over GP demolition bombs to maximize lethality against exposed mechanized units. * MET (Meteorological Report): Meteorological intelligence. Conditions for this first raid were clear over the target, though characterized by atmospheric haze. * OPREP NO. 1004: Operational Report documenting the first mission (1st Raid) executed on 15th April 1945. * SCORU: South African Operations Records Unit. * S.I.O.: Squadron Intelligence Officer, Capt. S.L. Boshoff. Operational Context Target File 271-4_44 documents Operation No. 199/21S/M, a high-priority tactical support strike executed on the morning of 15th April 1945. This mission took place during the decisive breakthrough phase of Operation Grapeshot, the final Allied spring offensive in Italy. The strategic objective was the neutralization of the 29th Panzergrenadier Division concentrations near Argenta (Map Ref: Sheet 88 - IMOLA, pp. M.260635). This German formation represented a mobile reserve critical to holding the Argenta Gap, a narrow strip of dry land that the Eighth Army (specifically the 56th London Division) needed to penetrate to break out into the Po Valley. The 12 Marauder III aircraft achieved varying results due to technical complications. The first box experienced bombsight malfunctions, requiring multiple runs and ultimately overshooting the target by 1,000 yards. One aircraft in this box failed to release and returned to Jesi L/G with its full ordnance. Conversely, the second and third boxes achieved "good overlapping patterns" that successfully straddled the briefed concentration area with fragmentation ordnance. This persistent air interdiction against high-value German mechanized assets was fundamental in degrading the tactical integrity of Heeresgruppe C and facilitating the terminal Allied breakthrough. 45 Phase 1: Verification & Extraction Identity Check: 15 APR 45. Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms * 21 S.A.A.F. / SA21: No. 21 Squadron, South African Air Force, a medium bomber unit operating under No. 3 Wing SAAF. * AIR 27 / 271 / 4: United Kingdom National Archives classification for the Air Ministry: Operations Record Books (ORBs); Volume 4 (AIR 27/271/4) catalogs the 1945 War Diaries and associated appendices for 21 Squadron. * BWG (94): Box White, Green. This technical suffix denotes the specific sub-formation and indicates this is the 94th frame in the strike film sequence. * BA-BH (Martin Baltimore): The twin-engine medium bomber utilized by the unit prior to their conversion to the Martin B-26 Marauder III in late 1943. * F14: Focal length of the camera lens (14 inches) utilized for high-altitude vertical strike photography. * HH M 2663: Map reference M. 2663 (specifically identifying coordinates near M. 260635), identifying the target area for a 29th Panzer Div. concentration near ARGENTA on the Imola 1:100,000 Sheet 88. * MC/GP (Medium Capacity / General Purpose): Standard Allied high-explosive ordnance classifications. For this tactical support mission, the unit prioritized 500 lb and 250 lb Fragmentation (Frag) bombs (totaling 72 x 500 and 48 x 250 for the formation) to maximize coverage against unarmored personnel and mechanized assets. * MET (Meteorological Report): Meteorological intelligence. Conditions for this morning sortie (1st Raid) were reported as "target clear" but with "visibility hazy," as evidenced by the soft contrast and atmospheric occlusion in this frame. * 11400 1225: Operational data indicating a bombing altitude of 11,400 feet and a strike time of 12:25 hours (recorded as 1300 hrs in the narrative summary). Operational Context Target File 271-4_45 is a vertical aerial strike photograph documenting Operation No. 199/21S/M (1st Raid) on 15th April 1945. The image captures the kinetic results of the Martin Marauder III aircraft targeting a concentration of the 29th Panzergrenadier Division (29. Panzergrenadier-Division) near Argenta. This mission was a high-priority tactical support operation conducted in direct aid of the 56th (London) Infantry Division during the decisive breakthrough phase of Operation Grapeshot. The target was a critical mobile reserve of the German 10th Army (10. Armee) situated within the Argenta Gap. By deploying heavy fragmentation ordnance, the Mediterranean Allied Air Forces (MAAF) sought to neutralize the mechanized counter-attack capability of Heeresgruppe C as Allied ground forces pushed to break out into the Po Valley. The photograph verifies the OPREP narrative regarding the performance of the second and third boxes, which successfully straddled the briefed area with "good overlapping patterns". Visible smoke plumes indicate the detonation of fragmentation bombs across the rural landscape where the Panzer units were billeted. Despite experiencing bombsight difficulties in the first box and "moderate inaccurate" heavy anti-aircraft fire, the formation successfully delivered the majority of its ordnance into the defended zone, facilitating the Eighth Army's final breakthrough of the Argenta defensive line. 46 Phase 1: Verification & Extraction Identity Check: 16th APRIL, 1945.