Each MONAB comprised of several key components, common to all units, and a range of inter-changeable technical components. Each technical component carried out a single function, day-to-day servicing, AIRCRAFT storage, repair of damaged AIRCRAFT etc. Should the MONABs tasking be changed additional components could be added to meet the new task, alternately, redundant components could be removed or re-deployed. [The MSR units of MONAB V are a prime example of this, together with the change of components in MONAB II during formation.]

With the exception of MONAB II and TAMY I all Mobile airfield units were formed with one MM and two MS technical components - MR and MSR components were attached to units where needed


Mobile Maintenance (MM)
Tasked with aircraft repair by parts replacement, and the repair & overhaul of aircraft components. Equipped with workshop vehicles and one steel framed, canvas covered portable hanger, capable of housing one large & one small aircraft. Each MM Unit was tasked with maintenance of a number of different aircraft types (see individual individual MM listing for details). An MM unit was manned by 6 Officers. 25 CPOs & POs and 64 ratings.


Maintenance Servicing (MS)
Tasked with routine daily servicing. Each individual MS unit was tasked to support specific aircraft types (see individual MS listing for details). An MS unit was manned by 4 Officers. 16 CPOs & POs and 10 ratings.


Mobile Servicing & Maintenance (MSM)

A containerised  pack-up unit containing the stores, tools and ground equipment of one MM and two MS units without the specialist vehicles. Designed to be substituted for the MM & MS components in a MONAB which was to be installed at a fully functional airfield with permanent structures to house technical components.   An MSM would be manned by 162 Officers. 65 CPOs & POs and 138 ratings. MONAB II was the only unit known to have included an MSM.


Mobile Air Radio Maintenance (MAR)
Radio and radar workshops, stores and generators in Road/Rail containers mounted on 3 Ton trucks. These components were not numbered, one MAR component was  attached to each MONAB and supported all equipment types in use by the BPF.  The manning levels for these units is not known.


Maintenance, Storage & Reserve (MSR)
Tasked with maintaining and storing reserve aircraft, each unit being equipped & stored to hold 50 aircraft. Attached to MONABs where reserve aircraft stocks were to be held for either local issue or re-supply of the Forward aircraft pool. Individual MSR units stored to hold a number of different aircraft types (see individual MSR listing for details). An MSR unit had its own complement of 3 Officers. 29 CPOs & POs and 99 ratings.


Mobile Repair (MR)
A containerised  pack-up unit tasked with carrying out repairs above those handled by an MM unit, but below the level requiring the attention of an aircraft repair yard. These units were intended for inclusion in type 'A' MONABs, however due to operational demands above those originally anticipated for some units the MR units operating in Australia were moved from unit to unit when required. Each MR unit was tasked with support of a number of different aircraft types (see individual MR listing for details). The manning levels for these units is not known.


Maintenance Annex (MA)
Task not clear, it is possible that these units were 'add on' components to supplement MSRs. (see individual MA listing for details). The manning levels for these units is not known.


Standard Preservation Unit (SPU)
Task and MONAB allocation is not clear; unit sailed with MONAB VIII in February 1945. May have been retained in Australia when MONAB VIII re-embarked for passage to Hong Kong. [Most likely use for such a unit would be as part of the Forward Aircraft Pool or TAMY I]


Mobile Air Torpedo Maintenance Unit (MATMU)
Tasked with torpedo servicing and supply, these units where attached to MONABs supporting disembarked Torpedo, Bomber, Reconnaissance (TBR) squadrons, providing an Air Torpedo live firing range. (see individual MATMU listing for details). A MATMU was manned by 1 Officer. 2 CPOs & POs and 30 ratings.


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All MONAB units were made up of a fixed set of common elements, the makeup of the repair and maintenance element being dictated by the unit tasking.


Commanding Officer, Executive Officer.


Comprised; Medical, Pay office, Naval & Air stores, Clothing stores, Messing, Victualling (Catering), Station Maintenance - [Accommodation, Discipline, Motor Transport, Water & Sanitation].


Repair & Maintenance (Air)
Comprising; Workshops - [MM, MS, MR, MSR], Air gunnery, Torpedo - [MATMU]


Operations & Training
Comprising; Flying control, Radio & Radar, Flight Deck Officer, Meteorological, Photographic, Station Flight, and resident Fleet Requirements Unit - if attached.


Airfield Defence
Comprising; Ground defence, Support, Anti Aircraft Defence.


No construction units were ever assembled; if needed they would comprise of a detachment of Royal Marine Engineers and would only be required by a Forward Area MONAB if no suitable base of operations were available.


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