MOST SECRET. APPENDIX "E"

Phase 2: Technical Expansion (Transcriber's Notes)
Glossary of Terms:
* No. 3 (S.A) WING: No. 3 (South African) Wing, the administrative and tactical parent formation for SAAF light bomber squadrons within the Desert Air Force.
* Daba: El Daba, a critical Axis-held rail and airfield hub located approximately 140 kilometers west of Alexandria.
* L.G's / Kittyhawk Wing L.G's: Landing Grounds. Specifically refers to forward airstrips designated for the P-40 Kittyhawk fighter-bombers of the Desert Air Force.
* 3 SAAF Wing: No. 3 (South African) Wing.
* O.L.G's: Operational Landing Grounds.
* Sidi Haneish: A series of airfields located west of the Alamein line near Fuka.
* 12th A.A.Brigade: 12th Anti-Aircraft Brigade, responsible for providing ground-based air defenses.
* 8th Army: The primary British and Commonwealth field army in the Western Desert.
* B.L.G's: Bomber Landing Grounds.
* 12, 21, 24, 55, 223 Squadrons: The constituent light bomber squadrons of No. 3 (S.A.) Wing, equipped with Martin Marylands and Baltimores.
Operational Context:
Operation Instruction No. 1.S., dated 19 September 1942, outlines the strategic contingency plans for the Mediterranean Allied Air Forces (MAAF) in anticipation of a definitive Allied breakthrough at El Alamein. The primary objective was to maintain "effective possible striking distance" by rapidly advancing air assets as the 8th Army pushed the Panzerarmee Afrika westward.
The prioritization of the El Daba and Sidi Haneish landing grounds was essential for sustaining the offensive momentum. El Daba, in particular, was a vital Axis logistical node whose capture would allow Allied light bombers, such as the Martin Baltimore, to extend their range into the Axis rear echelons.
The instruction reveals a tactical coordination between the light bombers of No. 3 (S.A.) Wing and the fighter wings. While the bombers were to remain at their current landing grounds until the front line advanced significantly, they were required to maintain "6 aircraft at standby" at forward fighter strips to provide immediate tactical response. The document also emphasizes the inter-service nature of airfield security, with the 12th Anti-Aircraft Brigade providing protection against Luftwaffe counter-strikes while the 8th Army handled ground-level local defense. This plan was a prerequisite for the overwhelming air-ground cooperation that would characterize the Second Battle of El Alamein in October 1942. Provisioned as Appendix "E" (Folio 36) in the squadron record, it documents the transition from defensive stabilization to offensive planning.

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Phase 1: Verification & Extraction
Identity Check: No specific date is recorded in a 'Date' column on this image; however, internal archival sequencing identifies this document as Schedule "A" to Operation Instruction No. 1.S., which was issued on 19th September 1942.
Phase 2: Technical Expansion (The "Transcriber's Notes")
Glossary of Terms:
* ASP's: Air Stores Parks. Specifically, 31, 33, and 40 ASPs, which were mobile units responsible for holding and issuing technical equipment and spares for the light bomber squadrons.
* L.G.90 / L.G.97: Landing Grounds 90 and 97. These were designated desert airfields in the Western Desert used to maintain operational tempo and security.
* W.E. Schedule: War Establishment Schedule. The official table of equipment and personnel authorized for a unit in theater.
* BGMC: Bomber Ground Maintenance Centre. A logistical formation responsible for establishing forward supply points for light bomber operations.
* Daba / Fuka / Sidi Haneish: Key logistical and airfield locations along the Egyptian coast; their capture or security was vital for sustaining the Allied westward advance.
* 124 MU / 111 M.U.: Maintenance Units. No. 124 M.U. acted as a regional depot at Ikingi Marut (near Alexandria), while No. 111 M.U. was a base supply depot in the Canal Zone.
* M.T.L.R.U.: Motor Transport Light Repair Unit. A mobile technical sub-unit responsible for the immediate repair and supply of motor vehicle components.
* AHQ.WD: Air Headquarters, Western Desert.
Operational Context:
Schedule "A" outlines the logistical and administrative requirements necessary to support the offensive contingency plans for No. 3 (S.A.) Wing during September 1942. The strategic focus was on absolute mobility ("All Units are to be fully mobile") to ensure the light bomber squadrons, including No. 21 Squadron SAAF, could rapidly occupy forward landing grounds as the 8th Army advanced.
The technical emphasis on mobile oxygen plants and 7-day technical spares indicated the preparations for high-altitude operations and high sortie rates for the Martin Baltimore and Maryland light bombers. Logistically, the plan relied on "cushion" dumps—intermediate supply points—to bridge the gap between base depots like Ikingi Marut and the fluid front lines until railheads at Daba could be secured.
The requirement for each vehicle to carry three days of rations and enough petrol for 150 miles highlights the extreme environmental and tactical distances typical of the Western Desert North Africa campaign. By ensuring the Air Stores Parks (ASPs) were integrated into the advance parties, the Mediterranean Allied Air Forces (MAAF) ensured that technical support remained tethered to the operational aircraft, a critical factor for maintaining air pressure on the retreating German-Italian forces during the lead-up to the Second Battle of El Alamein. This document, archived as Folio 37, provides the technical substructure to the strategic intent documented in the parent Operation Instruction.

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Phase 1: Verification & Extraction
Identity Check: 1st October 1942.