Army Standardfor Aviation Maintenance Hangar Complex: TOE Rotary Wing .
Army Standard for Aviation Maintenance Hangar Complex:TOE Rotary Wing Aviation UnitsDescription: The Aviation Maintenance Hangar Complex supports the maintenance,repair, and sustainment of manned and unmanned aircraft and associated equipmentas well as the planning and conduct of flight operations, aircrew and maintainer training,and the deployment and redeployment of aviation units. While the Hangar Complex ispart of the overall Airfield Complex, not all portions of the airfield are covered under thisstandard.Applicability: The Hangar Complex is covered under multiple Army standards, based on thetype of unit (Table of Organization and Equipment or TOE vs. Table ofDistribution and Allowances or TDA) and type of assigned aircraft.The TOE Rotary Wing Aviation Maintenance Hangar Army Standard applies tothe planning, design, and construction of aviation maintenance facilities for allActive Army Table of Organization and Equipment (TOE) manned Rotary Wingaviation units.Architectural criteria of this Army Standard (module sizes, dimensions of aircraftcirculation corridors, blade tip separation, telecom requirements, etc.) apply toReserve Component aviation maintenance facilities. Planning criteria for sizingthese facilities do not apply to Reserve Component aviation maintenancefacilities. Instead, planning criteria are governed by the current versions of NGPAM 415-12 and AR 140-483 or successor publications.While criteria in this Army Standard (architectural and planning) may informfacility decisions within Army Special Operations, plans for facilities supportingthe Special Operations Aviation Regiment and other special operations aviationelements are controlled and approved by the Headquarters, Army SpecialOperations Command and the command’s Deputy Chief of Staff – Engineering.Due to their unique mission and equipment, there are significant differences fromthe level of the flight units to the level of depot maintenance and research anddevelopment (R&D), much of which is accomplished within the SpecialOperations community.While criteria in this Army Standard (architectural and planning) may informfacility decisions within Army Test and Evaluation Command (ATEC), plans forfacilities supporting ATEC are approved by the ATEC Headquarters and theirassociated G-4.The primary source for determining unit allowances is the Real Property Planningand Analysis System (RPLANS).
Waivers: Approval for exceptions and waivers from Army Standards must be requested inaccordance with the AR 420-1. As the proponent, DCS G4 must validate andapprove the request.Garrison Army Standard waiver request submissions must be received insufficient time to allow the Facility Design Team to complete review anddevelopment of recommendations or courses of action for the Army FacilitiesStandardization Committee to consider prior to implementation into projectdesign.All waivers approved by Headquarters, Department of the Army (HQDA) shall bedocumented in installation master plans and, as applicable, must serve as theinstallation’s modified standards for the facility type and unit type affected.Late submissions and/or project delays are NOT sufficient stand-alonejustification for accelerated review or other dispensation to meeting the ArmyStandard contained herein.The Guidance section provides instructions and definitions necessary for the mandatoryrequirements contained in the tabular section of the Army Standard. As such, they areused in conjunction with the Army Standard to ensure the intent and embeddedfunctionality contained herein will meet the Army’s mandatory requirements set forth bythis standard.Planning CriteriaArmy Standards are not intended to provide broader design criteria such as spaceallocation, functional layouts, or basic layouts more appropriately contained in thesupporting and conforming Standard Design / Criteria. Nor are they intended to rigidlydefine collective facility authorizations more appropriately adjudicated by the ArmyRequirements Group.This Army Standard, associated Standard Designs, and approved Army space criteriaare applied together in an iterative and co-dependent way to provide a standardized butadaptable approach to facility standardization. Each serves a different purpose toensure mandatory functions and operability are provided uniformly and at the right size.The primary source for determining authorized allowances, in every instance, is theReal Property Planning and Analysis System (RPLANS) which incorporates currentcriteria approved by the Army Requirements Group.2
The Army StandardItemSite Selection &PlanningMandatory Criteria1. Aircraft maintenance bays of the hangars shall besited with direct access to aircraft mass parkingapron on Army Airfields (AAF) or Army Heliports(AHP) without physical penetration of controlledairspace or obstruction clearances.2. Hover / taxilanes will be provided with directaccess from the hangar access apron to the massparking apron, to allow power-on operations.Hangar access to parking will be throughperipheral taxilanes, or interior taxilanes to theparking spots. Movement from hangar to parkingspot (including maintenance apron parking spots)will not need to cross taxiways (as separate fromtaxilanes) or runways.See Guidance Section belowPhysical Securityand Safety Zone1. All operational areas of an AAF / AHP are aRestricted Area. The hangar buildings serve asan outer boundary for the AAF / AHP RestrictedArea. Entry into the Hangar buildings or any otherportion of the AAF / AHP [operational area] byanyone other than assigned personnel requiresprior authorization by airfield operations.Authorization for these personnel will be confinedto specific areas. Movement from the privatelyoperated vehicle parking lot to the unit hangarsand the aircraft parking apron will be controlled bythe aviation units. Movement from aircraft parkingaprons to taxiways and runways is monitored andcontrolled by Air Traffic Control.2. Hangars and fences shall be combined to providea physical barrier controlling access to aircraft andflight operations areas. This barrier shall precludeunauthorized pedestrian and vehicular traffic fromgaining access to the flight line. There should bea continuous Security Line composed of eitherbuilding walls or fencing that provides acontinuous physical barrier controlling access to3
parking apron, circulation and hover taxilanes,taxiways, and landing surfaces.3. Fences will include a 20-foot-wide vehicle gatewith separate pedestrian gate as stipulated by theAAF / AHP master plan.Hangar Functionsand TypesSee Guidance Section below1. Aircraft hangars (facility Category Code or CC21110 when many functional areas are present)are composed of CC 21114 aircraft maintenancebays, CC 21116 hangar shop space withmaintenance administration area and back shops,CC 21113 Aircraft Parts Storage for storage ofaircraft repair parts and associated aircraftequipment, CC 14112 Aviation Unit Operationswith company operations for flight and aviationmaintenance companies, and flight ops planningand briefing areas.2. Aviation maintenance has two echelons: Fieldand Sustainment. This Army Standard deals withField Maintenance.3. TOE Flight battalions (and, historically, separateTOE flight companies with organic aviationmaintenance) perform light Field Maintenance.4. TOE Aviation Support Battalions (and, historically,separate TOE intermediate maintenance supportcompanies outside the division / aviation brigadestructure) provide heavy Field Maintenance.5. Maintenance facilities for rotary wing aircraftassigned to TDA organizations, for fixed wingaircraft, and for Unmanned Aerial Systems (UAS)are covered under separate standards.6. No aircraft hangar shall take up more than 850' offlight line frontage.See Guidance Section below4
Primary FacilityScope and Capacity1. Hangar allowances are calculated for TOE flightbattalions and separate flight companies, and forTOE Aviation Support Battalions, under this ArmyStandard. It would also be applicable to selfsupporting separate aviation companies orEchelon Above Brigade Aviation MaintenanceCompanies backing up those in the CombatAviation Brigade, if either of those ever return tothe force.2. Allowance for hangars is a function of the sum ofthe allowances for aircraft hangar bays, shopareas, aircraft parts storage, and aviation unitoperations.MaintenanceOperations -AircraftMaintenance Bays(facility CC 21114,also functional areawithin CC 21110)See Guidance Section below1. Elements under this Army Standard are allowedone module size for maintenance and repair ofairframes. This module is 110' deep and 70' wide.This size accommodates all enduring fleet rotarywing aircraft up to the xH-47 to include proposedFuture Vertical Lift (FVL) aircraft.2. Units that provide light Field Maintenance (flightbattalions and separate flight companies) areallowed aircraft maintenance modules to support20% of assigned aircraft. When 20% of theaircraft calculates an allowance for a fractionalnumber of modules, round the result up.3. Units that provide heavy Field Maintenance(Aviation Maintenance Companies within AviationSupport Battalions) are allowed aircraftmaintenance modules to support 10% ofsupported aircraft. When 10% of supportedaircraft calculates an allowance for a fractionalnumber of modules, round the result up.5
4. The total number of aircraft maintenance moduleswill be used in other calculations related tocomponent repair shops. Note that performanceof heavy Field Maintenance will mean aircraft inthose hangar bays will be in shop for a longerperiod than jobs in the shop that performs lightField Maintenance. This means that thecorresponding spaces in component repair shopsin heavy Field Maintenance activities will be ableto work on a mix of components for aircraft inshop and component repair for componentspassed back from light Field Maintenance in orderto return the repaired components to Tech Supply.5. In addition to TOE maintenance activities whichprovide aircraft maintenance modules for a total of30% of all TOE aircraft, the spoke and hubLogistics Readiness Centers-Aviation (LRC-A's)will have maintenance modules to accommodaterepairs on an additional 7.5% of supported aircraftas back-up and augmentation to TOE rotary wingmaintenance capabilities. The LRC-Aauthorization is provided in detail in the TDARotary Wing Maintenance Hangar Standard.Additional space in a battalion hangar is notauthorized to accommodate Heavy FieldMaintenance because such maintenance, if notprovided by an ASB, is to be provided by theLRC-A unless the battalion is designed to provideboth Light and Heavy Field Maintenance like theSOAR battalions.6. Provide water, power, compressed air, drainage,and data connectivity to all maintenance modules.7. The basic module size of 70' x 110' provides 5' tothe right and left of the rotor blades (60' indiameter for the Chinook family of aircraft 5' 5' 70') plus 5' to the front and back (a length of alittle over 98' for the Chinook family rounded to100' 5' 5' 110').8 Provide a five-foot (5') safety corridor around eachcontiguous group of aircraft maintenancemodules. This area is to be kept clear ofequipment and furniture.6
9 Provide another additional five-foot (5') footstructural corridor around each group ofcontiguous maintenance modules. Miscellaneousitems such as eye wash stations can be kept inthe space between the columns in this area.10 Provide limited wash capability in each aircraftmaintenance module with drainage into theinterior maintenance bay trench drain and thencethrough an oil-water separator.Overhead Lift inAircraftMaintenance BayModules (facility CC21114, functionalarea within CC21110)MaintenanceOperations -- Shops(CC 21116,functional areawithin CC 21110)Maint Ops -- Shops(CC 21116) -- ShopAdministrationSee Guidance Section below1. Provide overhead lift rated at 10 tons with accessto all aircraft maintenance modules, throughincorporating a bridge crane in the facility. Allworking maintenance modules across the entirefacility must be provided with lift capability. Forhook height, see Standard Design.2. All hangars get at least one 10-ton overheadbridge crane. In cases where hangars have 4aircraft maintenance modules, provide at leastone crane for every four (4) aircraft maintenancemodules, i.e., 5 - 8 modules get two (2) cranes, 9 12 modules get three (3) cranes, etc.1. The shop facilities include Shop Administration,Maintenance Support space, and ComponentRepair Shops (previously described in a variety ofways including Basic Shops, Special Shops, andAllied Shops), Aviation Life Support Equipment(ALSE) Shops, Tech Supply, and ContractorLogistics Support Area. Many functional areacalculations are the same between light andheavy Field Maintenance.See Guidance Section below1. This space accommodates office space for ShopSection headquarters, Airframe MaintenancePlatoon, Component Repair Platoon, ArmamentRepair Sections, Avionics Sections, QualityControl / Quality Assurance Sections, ProductionControl, Aviation Support Battalion safety office,Unit Level Logistics System - Aviation (Enhanced)or ULLS-A(E) equipment room, etc.7
2. Count number of maintenance administration andshop control personnel based on militaryoccupational specialty and grade. Multiply by 130NSF / PN.3. Add 1,000 NSF for Production Control4. Aviation Missile Command (AMCOM) LogisticsAssistance Representatives (or LAR's) providetechnical expertise to solve logistical problems.They are also allocated 130 NSF / PN, the sameas unit maintenance administration and shopcontrol personnel.A. Aviation LAR's are assigned to only flightbattalions, not ASB's, LRC-A's, or other supportmaintenance activities. The number of personnelis based on the following rules, and the numbersare additive.B. A flight battalion hangar with assigned attackaircraft gets 2 ea. LAR's, one for the aircraft andone for the weapons and sensors.C. A flight battalion hangar with assigned assault /cargo aircraft gets 1 LAR per airframe type.D. The flight battalion in an Aviation Brigade withthe most aircraft will be assigned space for anadditional Electronics LAR.E. AMCOM Missile LAR's will not beaccommodated in hangars.F. Any AMCOM fixed wing LAR's will beaccommodated in corresponding fixed winghangars (e.g., Gray Eagle) and not with rotarywing LAR's.See Guidance Section below8
Maint Ops -- Shops(CC 21116) -MaintenanceSupport1. The maintenance support area of the shop issupport space for types of maintenance typicallyperformed in aircraft maintenance modules or onthe hardstand. This includes support space foraircraft specific maintenance personnel, a toolroom for special tools, and workrooms for crewchiefs.2. Provide 1,200 NSF for a unit that maintains asingle type of airframe. If a hangar performsmaintenance on more than one type of airframeeach additional type of aircraft is allowed anadditional 1,200 NSF.4. Provide a base tool room space of 300 NSF.Provide an additional 400 NSF for each differenttype of aircraft assigned or supported.5. Provide 1,000 NSF for crew chiefs for eachaviation line company, i.e., flight company.Maint Ops -- Shops(CC 21116) -Component RepairShopsSee Guidance Section below1. The basic format for sizing most shop areas is anallocation for a base quantity, plus some numberof square feet times the aircraft maintenancecapacity, with a final check that the shop is atleast as big as a minimum factor. The aircraftmaintenance capacity is the number of aircraftmaintenance modules in the hangar.2. Power Plant Shop (used by 15B personnel) needsa base quantity of 450 NSF plus 75NSF/maintenance module, no additionalminimum.3. Power Train Shop (used by 15D personnel) needsa base quantity of 450 NSF and 75NSF/maintenance module, no additionalminimum.4. Structural Repair Shop (used by 15G personnel,or civilian equivalent) needs a base quantity of1,150 NSF and 75 NSF/ maintenance module,with a minimum of 1,650 NSF. The 1,650 NSFminimum includes 500 NSF of composite repairspace and 1,000 NSF of sheet metal repair space9
plus a 150 NSF area for robing and disrobing fortechnicians wearing protective equipment.5. Blade Shop (also used by 15G personnel, orcivilian equivalent) in a Light Field Maintenanceactivity such as a flight battalion needs 1,000NSF.This is sufficient for spot painting 12" x 12" areason objects up to the size of a single rotor blade. Itis located where there can be co-use of the robingand disrobing area of the Structural Shop. In aHeavy Field Maintenance activity such as an ASBthe Blade Shop needs 2,500 NSF. This issufficient space to paint an entire set of 3 rotorblades for an xH-47, or 4 rotor blades for an xH60 or AH-64.6. Pneudraulics Repair Shop in light FieldMaintenance (used by 15H personnel) needs abase quantity of 200 NSF and 50NSF/maintenance module, with a minimum size of530 NSF. Note that, while 15H personnel areoften involved in maintaining Aviation GroundSupport Equipment (AGSE in the Army, GSE inDoD terms), that function is accomplished inanother space. In heavy Field Maintenance, aunit needs a base quantity of 200 NSF plus 75NSF/maintenance module.7. Electrical / Avionics Shop (used by 15G and 15Npersonnel) needs 125 NSF/maintenance modulefor light field maintenance and 300NSF/maintenance module for heavy FieldMaintenance with a minimum size of 450 NSF. If15F and 15N personnel are in a paragraph with a15X or 15Y Non-Commissioned Officer in Charge(NCOIC), this shop is not needed, and thefunction is consolidated with the Systems /Armament Shop.8. A Night Vision Device Repair Shop area of 200NSF will be allowed based on the assignment of94R personnel, typically in heavy FieldMaintenance.10
9. Systems / Armament Shop (used by 15X and 15Ypersonnel) needs 125 NSF for each attack aircraft(AH-64, AH-6, AH-60, etc.) maintenance modulein light Field Maintenance with a minimum of 530NSF if any attack aircraft are present. For heavyField Maintenance, the need is 300 NSF / attackaircraft maintenance module, also with a minimumof 530 NSF. If 15X or 15Y personnel are in aparagraph with a 15F or 15N NCOIC, this shop isnot needed, and the function is consolidated withthe Electrical / Avionics Shop.10. An Arms Vault for aircraft mounted weapons willbe allowed for a light Field Maintenance activity(300 NSF) and for a heavy Field Maintenanceactivity (900 NSF.) The larger area is toaccommodate storage of the 30mm chain gunfrom the Apache. This arms room should meetany arms room requirements in accordance withthe current AR 190-11 Physical Security of Arms,Ammunition and Explosives or its successorpublications. This will also provide sufficientspace for secure storage of any communicationssecurity (COMSEC) equipment needing a higherlevel of security than other communicationsequipment.11. A Non-Destructive Inspection (NDI) Room of 100NSF will be provided for each light FieldMaintenance Activity, and one of 150 NSF will beprovided for each Heavy Field MaintenanceActivity.12. A Machine Shop / Welding Shop base area of 400NSF will be allowed for each maintenance activitywith organic 91E personnel. An additional 40NSF/maintenance module will be added.13. A Ground Communications Equipment Shop(based on the presence of and used by 94Epersonnel) will be allowed 500 NSF. These aretypically found in a heavy Field MaintenanceActivity.11
14. Provide accommodations for use of SPAM's(Shelter, Portable, Airmobile) and IFTE/EETF(Improved Flight Test Equipment/ EnhancedElectronic Test Facility) vans adjacent to the Shoparea with accommodations for daily operationsand use (e.g., loading dock, personnelaccessibility and circulation, provisions ofcommercial power)Maint Ops -- Shops(CC 21116) -Aviation LifeSupport Equipment(ALSE) RepairSee Guidance Section below1. Units with an enlisted soldier in grades E1 - E7with "ALSE" in the duty title need an ALSE Shop.2. Provide a base area of 1,500 NSF for ALSE Shop.3. Provide an additional 100 NSF for units with amedevac mission for maintenance and testing ofhoists.4. Provide an additional 120 NSF for units with overwater mission, documented on a case-by-casebasis.5. Provide an additional 120 NSF oxygen generationroom for units with high-altitude missions,documented on a case-by-case basis, at the ASBlevel.6. Provide 5 NSF of ALSE locker space for eachassigned pilot, by MOS.7. Provide 5 NSF of ALSE locker space for eachassigned non-pilot member of aircrew, by MOSSQI "F" on the end of an enlisted MOS.Maint Ops - AcftParts Storage (CC21113), OverheadProtection forComponents &Parts (CC 14970), &Tech Supply &Contractor LogisticsSupport (CLS)See Guidance Section below1. Each light Field Maintenance activity such asDelta Company within a flight battalion will beallowed a base area of 2,600 NSF of Aircraft PartsSupply within the light Field Maintenance hangar.2. Each heavy Field Maintenance activity such asBravo Company within an Aviation SupportBattalion will be allowed a base area of 8,000NSF of Aircraft Parts Supply within the heavyField Maintenance hangar.12
3. In addition, each heavy Field Maintenance activitywill be allowed an additional 4,000 GSF of AircraftParts Supply storage in a covered but notenclosed area.4. Contractor Logistics Support (CLS), includingoffice space and storage, will be accommodatedwithin the Logistics Readiness Center - Aviation(LRC-A) with parts storage within allocatedstorage at flight battalion, ASB, and LRC-A.5. Special requirements for humidity control IAW AR710-2 will be addressed in the standard design.Maintenance OpsOverheadProtection (CC14179) AviationGround SupportEquipment (AGSE)and AssociatedItems of Equipment(ASIOE)Aviation Unit Ops(CC 14112)MEDEVAC ReadyArea and StorageAviation Unit Ops(CC 14112) FlightOps & Pilot WorkAreasSee Guidance Section below1. Each flight battalion will be allowed a base area of2,000 GSF of covered storage for storage ofaircraft components: wings, tanks, etc.2. Every company performing aviation maintenance(e.g., Delta Company of flight battalions andBravo Company of the ASB) will be allowed 3,000GSF of covered storage for AGSE.1. Aviation units with a medical evacuation(MEDEVAC) mission gets 1,270 NSF of space forthe base area of a MEDEVAC Ready Area andStorage. In addition, each MEDEVAC platoongets an additional 400 NSF of workroom andstorage.See Guidance Section below1. The number of pilots is the total of 15A, 15B, &15C commissioned officers in grades O1 – O6and152x, 153x, & 154x warrant officers in grades W1– W52. Pilot workroom will be provided at 21.0 NSF/pilotassigned.3. Flight planning rooms will be provided at 10.5NSF/pilot assigned.13
4. A secure planning room will be provided at 6.0NSF/pilot5. Conference rooms will be provided at 6.0NSF/pilot6. A pilot briefing room will be provided at 15NSF/seat plus an additional 25% of in-roomcirculation for a total of 19.0 NSF/seat. One seatis provided for each pilot assigned to theorganization.7. Permanent workspace is also included fordesignated flight operations personnel with a highadministrative workload. Each soldier matchingthese criteria is allotted 110 NSF of office space.Aviation Unit Ops(CC 14112)CompanyHeadquartersSee Guidance Section below1. Provide each company 220 NSF for 2 ea. 110NSF offices for Commander and First Sergeant.2. Provide each flight company 400 NSF for an ArmsVault and each aviation maintenance Company430 NSF for Arms Vault3. Provide each flight company 400 NSF and eachaviation maintenance company 430 NSF of UnitStorage (Supply Room)4. Provide each flight company 180 NSF and eachaviation maintenance company 200 NSF ofSecure Storage.5. Provide each flight company 100 NSF and eachaviation maintenance company 110 NSF ofChemical Biological Radiological Nuclear (CBRN)Storage6. Provide each flight company 100 NSF and eachaviation maintenance company 110 NSF ofcommunications storage7. Provide each company (flight and maintenance)150 NSF training office.See Guidance Section below14
Fire Suppression(CC's 21110 / 21114/ 21116 / 21113 /14112)1. Aircraft hangars shall use a fire suppressiondesign, UFC 3-600-01, which the Army adaptedfrom NFPA 409. It will also meet therequirements of UFC 4-211-01 for firesuppression.2. Aircraft maintenance modules will not use watersystems as the primary suppression systemwithout waiver approval.3. Maximize protecting of personnel, minimizing riskto personnel within hangars during dispensing.4. Maximize protection of airframes, trying tominimize loss of airframes resulting fromdispensing and cleanup.5. Design system to provide fastest return ofairframes to a mission ready status afterdischarge.6. Minimize use of water in terms of total quantityand in terms of the percent of content of theagents used.7. Minimize infrastructure cost.Power (CC's 21110/ 21114 / 21116 /21113 / 14112)1. Primary service to all hangars shall be 480v AC,three-phase, with Y-ground.Gross Square Feetof Building1. Net square feet of CC 21114 Hangar Bay(including maintenance modules, safetyclearances, and structural space) NSF CC21116 Shops NSF 21113 Aircraft Parts Storage NSF 14112 Aviation Unit Operations TotalNSF of Facility.2. Provide power for the type and quantity of aircraftsupported or assigned.15
2. This result is the target NSF to support the unitmission. This is also the target NSF of acorresponding standard design if the unit inquestion is common enough to be worthy of astandard design. Floor space at 80% of thisnumber should be treated as the minimum spaceto accomplish the mission; a unit should get NotLess Than (NLT) this quantity of space. There isalso a planned ceiling of 120% of this space. If astandard design provides over 120% of thecalculated space for a unit, any plannedconstruction for that unit should be based oneither creating a new standard design (if the unittype is common enough for that to be worthwhile)or creating a design unique to the unit supported.3. Not only should the total space be within /- 20%,but the quantity of hangar bay must either be 80% of the authorized hangar bay in square feet,or the hangar bay must be able to accommodateat least 80% of the aircraft (by type) actuallyrequiring hangar space. For example, if the unithas 25 Blackhawks it needs light fieldmaintenance modules for 5 ea. Blackhawks (25Blackhawks * 20% 5 maintenance modules),and they have four modules smaller than thosespecified for CH-47's in the standard but that canaccommodate Blackhawks, then those 4 ea.Blackhawk modules meet the minimum missionstandard even though they occupy 80% of therequired hangar bay.Aircraft Wash Apron(CC 11370)See Guidance Section below1. Provide each aircraft hangar with an externalwash apron or aprons.2. This apron must be sized for the largest rotarywing aircraft and need only provide access fornon-power on operations (i.e., it will be moved tothe apron by a tug rather than under the aircraft'spower.)3. The apron will be sized per UFC 3-260-01 toaccommodate two UH-60 or one CH-47.16
4. The wash apron will be provided with not onlywater but also power and compressed air service.5. At no time will the capacity for the Wash Apron besized to serve as a recovery point (deployment,operation, or exercise) or Rinse Facility.Hangar AccessApron (CC 11340)See Guidance Section below1. Provide a continuous concrete surface fromparking apron or taxiway to the hangar door sizedto be commensurate in width with the door andNLT 75' in depth. There may be a validrequirement to make the apron deeper in theevent there are power-on activities or taxiways /taxilanes with obstruction clearance factorsrequiring more space.2. When a hangar door does not have immediateaccess to the parking apron or a circulationtaxilane, a circulation pathway (not for power-on)will be provided NLT 65' wide with a direct path toa hover / taxilane or an operational taxiway.3. While no allowance will be calculated forpavements on the side of hangars, if these existon a given airfield then they constitute a validrequirement. These typically provide access tothe flight line for ground support equipment,material handling equipment, fuel trucks,maintenance shop trailers and vans, and otherequipment the size of a vehicle.AircraftMaintenance Apron(CC 11330)1. Aircraft maintenance aprons are provided foraviation maintenance organizations that typicallyhave either no assigned aircraft (i.e., currentAviation Sustainment Battalion AviationMaintenance Bravo Companies) or very smallnumbers of assigned aircraft relative to their size(i.e. former separate non-divisional AviationIntermediate Maintenance Companies with twoaircraft.)2. They are authorized NMT 14,000 SY.17
3. This provides space for about 3-4 aircraft whichcan be used for temporary storage of deadlinedaircraft awaiting room within the shop, or repairedaircraft awaiting pick-up by the owning unit, orperformance of outside tasks like engine run-up.Rotary Wing AircraftParking Apron (CC11320)1. Aircraft parking is planned for flight battalions andseparate flight companies that are assignedaircraft. This space includes parking pads for theaircraft, as well as taxilanes used to circulatewithin the parking area and to move from theparking area to a hangar access apron, aircraftwash apron, maintenance apron, or taxiway. Ataxiway is distinct from a taxilane as taxilanesprovide circulation within the parking area whiletaxiways provide circulation from one end of therunway to the other end or between a runway ortaxiway and parking aprons, maintenance aprons,etc.2. Parking apron is planned for 75% of assignedaircraft plus maintenance space for 15% ofassigned aircraft for a total of 90% of assignedaircraft.3. Parking spaces for xH-47 sized aircraft are 150'long and 100' wide.4. Parking spaces for rotary wing aircraft other thanthe xH-47 family are 100' long and 80' wide.5. Interior taxilanes are 120' wide for 2-way traffic,perimeter taxilanes are 60' wide plus a 25'Telecommunications1. Telecommunications infrastruc
1. Aircraft hangars (facility Category Code or CC 21110 when many functional areas are present) are composed of CC 21114 aircraft maintenance bays, CC 21116 hangar shop space with maintenance administration area and back shops, CC 21113 Aircraft Parts Storage for storage of aircraft repair parts and associated aircraft
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The criteria in this document are applicable to the programming and design of an Aircraft Maintenance Hangar Complex for an Attack Reconnaissance Battalion (ARB), Attack Reconnaissance Squadron (ARS), or Assault Helicopter Battalion (AHB) within a Combat Aviation Brigade (CAB). The AAB Standard Design Aircraft Maintenance Hangar Complex
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tree for an aircraft initiated risk of a "Major fire in Hangar 1" is shown in Figure 1. The initiating event is that a local fire starts in an aircraft that is stored in the renovated hangar 1. This is assessed to be "Probable" in the life of the hangar. Local fire detection, meaning within the aircraft, occurs with a high probability.
Aircraft hangar No. 14 was built in 1956 and was owned by United Airlines at the time of construction. The building is a former aircraft hangar with a two-story office component. In later years, the hangar was owned by the Port Authority of New York and New Jersey (Port Authority) and was used for overnight aircraft parking.
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