Attachment 013 ATTLA_Universal_Data_Sheet.xlsx
XLSX spreadsheet 258 KB Posted
- Attached to
- Self-Propelled Howitzer-Modernization (SPH-M) Mobile Tactical Cannon (MTC) Draft #2 and Industry Day Slides/Q&A Federal contract opportunity
- Solicitation number
- SPH-M_MTC_2
- Issued by
- Department of the Army
About this file
This file is an Airlift Certification Universal Data Sheet template used by the Air Force Airlift Transportation Logistics Agency (ATTLA) to evaluate whether vehicles and equipment meet requirements for transport on U.S. Air Force aircraft. The document provides detailed instructions for submitting vehicle certification packages, including dimensional thresholds, weight limits, tie-down provision ratings, and structural integrity requirements. Items exceeding 240 inches in length, 96 inches in width or height, or 10,000 pounds in weight require evaluation, as do items with special handling needs such as electronic components, personnel occupancy, or susceptibility to aircraft environmental effects. All tie-down provisions must be closed-loop and capable of withstanding 3G forward, 1.5G lateral, and 2G vertical upward forces, with cargo withstanding 4.5G downward forces.
The submission package must include technical documentation in English with specific vehicle identification information (VIN, military designations, National Stock Numbers), three-view schematic drawings, digital photographs of all four vehicle sides and tie-down provisions, and actual weights of vehicles prepared for airlift. Ratings can be obtained from manufacturers, structural engineers, or through contracted analysis. The certification process typically requires up to 120 days for ATTLA evaluation and certification letter issuance. Additional requirements apply for helicopter and container certifications, including venting calculations for sealed containers and verification of landing gear or strut capabilities. Shipper contact is ATTLA@us.af.mil, with inquiries directed to Michael F. Schneider or appropriate points of contact as designated in the submission.
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Dissemination
| Release: 2026-01-28 (DRAFT) |
| Distribution Statement A. Approved for public release: distribution is unlimited. |
PEO GCS OPSEC# OPSEC-2026-232
CUI
CUI
Instructions
| Instructions for Airlift Certification | |
| ATTLA can be contacted at ATTLA@us.af.mil | |
| 1 | All data entries are required information, by vehicle type. |
| 2 | In accordance with US Department of Defense regulations, any item airlifted by USAF aircraft should be evaluated for airlift if they exceed the following dimensions: |
1. Length greater than: 240 inches (20-feet)
2. Width greater than: 96 inches (8 feet)
3. Height greater than: 96 inches (8 feet)
4. Weight greater than: 10,000 lb
5. Weight distribution greater than aircraft limits, nominally based on the C-130:
a. 5,000 pound axle
b. 2,500 pound wheel
c. 1,600 pounds per linear foot running load
d. 50 psi floor contact pressure
6. Requires special handing for one or more of the following reasons:
a. Item characteristics are such that the aircraft and/or Air Force materials handling environment poses a problem
b. Requires usage of air electrical power or electronic system
c. Cargo has electronic components that are powered on (electronically active) or are used while in the aircraft other than during onload/offload from/to the ground
d. Cargo occupied by personnel during any phase of flight
e. Susceptible to potential aircraft environment: high altitude, rapid decompression, electromagnetic environment, and/or extreme temperature.
f. Susceptibility to explosive atmosphere environment (aerial tanker aircraft only)
7. Inadequate ramp clearance for ramp inclines of 15 degrees
8. Requires special loading/unloading procedures for any other reason
| 3 | Please designate units of measure at the top of the sheet (listed in red). Use Standard abbreviations: cm, m, in, kg, lbm, pa, psi. DO NOT MIX UNITS! 30ft 8in 10m 45cm |
| 4 | Documentation must be in English or have English translation provided. |
| 5 | Indicate if vehicle is used and/or certified by another nation under a different name. |
| 6 | Indicate if the vehicle is a variant of a chassis which has already been certified. |
| 7 | Vehicle name should be common user name applied by country. |
| 8 | Please also include year, make, model, Vehicle Identification numbers (VIN), Military designations, National Stock Number, and NATO stock numbers (as applicable) are required to verify the specific vehicles being certified. |
| 9 | If VIN are not available, use hull numbers, registration numbers or other number permanently attached to the vehicle. These numbers are especially important when certifying commercial off-the-shelf items. For example, the certification letter for a 1998 Land Rover will be different than a 2008 Land Rover. License plate numbers are not acceptable. |
| 10 | Tie Down Provision Ratings - My be obtained from a variety of sources including: |
- the vehicle manufacturer
- nations may use their own structural engineers to evaluate and provide a strength analysis
- nations may contract a structural engineering firm to evaluate an provide a strength analysis
- nations may gain data from anther nation using the same vehicle
* Note that tie down provisions must be capable of restraining the vehicle for 3Gs forward, 1.5Gs lateral left/right and aft, 2Gs vertical up. The cargo must have the structural integrity to withstand 4.5Gs down.
| 11 | Rated capacity (strength) of each tie down provision must be provided. |
| 12 | Federal Sponsor - Agency or DOD Branch for whom the item is being moved |
| 13 | Provide 3-view schematic drawings if available. |
| 14 | Digital photos of all four sides of vehicle are required. |
| 15 | Digital photos of all tie down provisions required. Recommend using PowerPoint to clearly label tie down provisions. |
| 16 | Digital photos of track pads required on tracked vehicles |
| 17 | Require a technical drawing or sketch of the top view of the vehicle showing all tie down provisions and their rated capacities in all directions. |
| 18 | Tie down provisions cannot be open hook. They must be closed loop. If clevis will be added to a tie down provision, the rated capacity of clevis must be provided. |
| 19 | Note the type of aircraft certification requested i.e. C-130, C-5, C-17. |
| 20 | Note the proposed shipping date. |
| 21 | Vehicle rating data for lines HH and JJ can frequently be found on vehicle data plates. |
| 22 | Weights listed at lines GG and II must be actual weights of vehicle prepared for airlift. |
| 23 | Axle weights listed at line II should equal the Gross vehicle weight at line GG. |
| 24 | Actual weights cannot exceed rated weight capacities. |
| 25 | M Factor may be required for certification for C5 aircraft. The M factor is the percentage of the tire tread that contacts floor surfaces within the tire footprint. A ratio of rubber verses open space within the tire footprint may also be provided. Also note that if tires are inflated above 100 psi, ATTLA needs to know if tires may be deflated to less than or equal to 100 psi and remain within manufacturer tolerances for safe highway travel at weight supported by tire. |
| 26 | Venting requirements for sealed or low ventilation containers to prevent fragmentation or explosion during aircraft rapid decompression. Examples are ISO containers, cryogenic vessels, and personnel transport modules. See MIL-STD-1791 or MIL-STD-810 for latest criteria. Below is a copy of the basic equation that can be used to verify if the shelter has enough available open area to allow the decompression of its contained air volume in the case of a rapid decompression during air transport (8.3 psi change in pressure in 15 seconds). The equation can be simplified to the following two forms: |
1. t = 0.0026 x V/A time required for a container with an air volume of V (cubic feet) and an escape area of A (square feet)
2. A = 0.0001825 x V Escape area required to allow the decompression of a container with an air volume of V (cubic feet) to decompress or equalize the internal container pressure to the external container pressure in 15 seconds.
This method of validation is not necessary if the container has the structural capability to withstand an 8.3 psi pressure differential without any of its components becoming an explosive, or the residual pressure in 15 seconds. Let ATTLA know your trailer, container, shelter, van box capacity in this regard one way or the other.
* Note that the shipper may have to contact the manufacturer to obtain this information.
| 27 | Shipper must confirm that all attached/mounted items will withstand all required G Forces. | |
| * Note that items mounted or secured to the vehicle must be capable of withstanding 3Gs forward, 1.5Gs lateral left/right and aft, 2Gs vertical up and 4.5Gs vertical down. | Confirmation of mounted item security is validated by ATTLA following receipt of Finite Element Analysis or Aberdeen Proving Ground Rail Impact and Mobility Testing Reports. | |
| 28 | Messages greater that 6MB should be broken down into multiple smaller messages and sent at the same time. | |
| 29 | Additional information may be requested by ATTLA to aid in the certification process. | |
| 30 | The certification process is a very detailed, lengthy process. It may take some time to gather documentation for the package. Once the package has been submitted to ATTLA it may take up to 120 days for evaluation and issue of certification letter. | |
| 31 | If there are modifications causing the exterior dimensions or weights to exceed those specified in the certification memo, one of the other memo provisions is affected, or if one of the "Special Considerations" is added, the Federal Sponsor must be notified. | |
| 32 | The more detailed information provided to assist with certification process the easier and faster the process will go. | |
| 33 | Mobility Testing: Typically performed on Military vehicles to validate capabilities including, cross country, off road, tilt, rail impact, steering, braking, loading, tiedown, lifting, etc. This is relevant because it contains data on suspension and tiedown capabilities |
Additional Information Required for Helicopter Certification
| 1 | What are the axle/strut ratings on the helicopter? If the shipper cannot provide this data, can they prove the helicopter landing gear/struts will sustain a 4.5G download |
| 2 | Do all the rotor blades fold back like the Blackhawk? Does the user plan or removing the blades if this is not possible? Does the user plan on removing only two blades if this is not possible? |
| 3 | Does the shipper have a pre-fabricated winch bridle for loading operations capable of use while winching the helicopter on backwards or forwards? |
| 4 | Are the main landing gear struts capable of being raised to accommodate a higher approach angle (this means less approach shoring)? If so, what is the forward ground clearance or approach angle under the front end of the helicopter? |
Verification/validation of tiedown capacities either via testing or analysis is required
General Info
| File Number | ||
| Michael F Schneider: Assigned by ATTLA | 201x.xx.xx | |
| Vehicle Type | Mobility Tested? |
Nomenclature
| Manufacturer |
| Model |
| National Stock Number |
| NATO Stock Number |
| Point of Contact | Role |
| Name | |
| Organization | |
| Com. Phone Number |
Michael F Schneider: Please Include Area/Country Code
| DSN |
| Address |
| City, State, Country, Zip/Postal Code |
Federal Sponsor Michael F Schneider: Michael F Schneider:
Leave blank if same as above Michael F Schneider: See Instructions Tab, Item 33 Mobility testing is performed on Military Vehicles to verify capabilities for cross country, off road, etc.
| Agency/Unit/MAJCOM: |
| Name |
| Com. Phone Number |
Michael F Schneider: Please Include Area/Country Code
| Michael F Schneider: Please Include Area/Country Code | DSN |
| Address | |
| City, State, Country, Zip/Postal Code |
| Wheeled | |||
| Notes/Comments: | Checklist | Tracked | |
| Data | Dimensional | Trailer type 1 | |
| Tiedown | Trailer type 2 | ||
| Weights | Aircraft | ||
| Ratings | Helo | ||
| Shelter-Container | |||
| Pictures | Front | Crane | |
| Rear | Forklift | ||
| Left side | Telehandler | ||
| Right side | Other | ||
| Tiedowns |
| Drawings | Top | |
| Front | Contractor | |
| Rear | Federal Sponsor | |
| Side(s) | NATO Ally | |
| Tiedown | US Ally | |
| Other |
Verification/validation of tiedown capacities either via testing or analysis is required
Wheeled Vehicle
| WHEELED VEHICLE DATA SHEET | File Number | 201x.xx.xx |
| DIMENSION DATA INPUT | Length |
Michael F Schneider: See Instructions Tab, Item 3.
| Pressure | |
| Michael F Schneider: See Instructions Tab, Item 3. | Weight |
Michael F Schneider: See Instructions Tab, Item 3.
| Unit of Measure | in | psi | lbm | |||||
| A. | Length | |||||||
| B. | Width | |||||||
| C. | Reduced Width | (check 1 box) | ||||||
| D. | Height at Front of Vehicle | Forward | Aft | |||||
| E. | Maximum Height | Distance from front axle is XX" | → | Is maximum height forward or aft of axle 1? | ||||
| F. | Height at Rear of Vehicle | Instead of lower overhangs/ground clearances, angles may be given | ||||||
| G. | Lower Forward Overhang | |||||||
| H. | Upper Forward Overhang | Approach | ||||||
| I. | Lower Rear Overhang | |||||||
| J. | Upper Rear Overhang | Departure | ||||||
| K. | Forward Ground Clearance | |||||||
| L. | Mid-Wheelbase Ground Clearance | Cresting | ||||||
| M. | Rear Ground Clearance | |||||||
| N. | Pintle Distance | |||||||
| O. | Pintle Ht | |||||||
| P. | Fifth Wheel Height | |||||||
| Q. | Fifth Wheel to First Axle Distance | |||||||
| T. | Wheelbase | |||||||
| U. | Width Outside Wheels |
WHEEL DATA INPUT
X. Axle Articulation (Deg)/Travel
| Y. | Number of Axles | ||||
| 1st to 2nd | 2nd to 3rd | 3rd to 4th | |||
| Z. | Axle Spacing's (Front to Rear) | ||||
| 1st Axle | 2nd Axle | 3rd Axle | 4th Axle | ||
| AA. | Number of Wheels per Axle | ||||
| BB. | Tire Size (xx R zz) | ||||
| CC. | Ply Rating | ||||
| DD. | Tire Pressure | ||||
| EE. | Tire Contact Length | ||||
| FF. | Tire Contact Width | ||||
| Tire Diameter | |||||
| Ratio of Tread Contact Area to Footprint Area (M-Factor always <1) |
| WEIGHT DATA INPUT | ||||||||||
| Base | W/Armor | |||||||||
| GG. | Gross Vehicle Weight | |||||||||
| HH. | Gross Vehicle Weight Rating (GVWR) | |||||||||
| 1st Axle | 2nd Axle | 3rd Axle | 4th Axle | |||||||
| II. | Axle Weights (Front to Rear) | |||||||||
| II.* | Axle Weights (Front to Rear) W/Armor | |||||||||
| JJ. | Axle Ratings (Front to Rear) | |||||||||
| KK. | Tire Load Rating (55 MPH/88KPH) | @ set pressure | ||||||||
| MM. | Pintle Hook Rating | |||||||||
| Front Provision Positions | ||||||||||
| NN. | Number of Front Tiedowns | Provision | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| MIL-STD-209K data - Longitudinal | X | |||||||||
| Lateral | Y | |||||||||
| Vertical | Z | |||||||||
| Overall Capacity | Side Provision Positions | |||||||||
| OO. | Number of Side Tiedowns (Each Side) | Provision | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| MIL-STD-209K data - Longitudinal | X | |||||||||
| Lateral | Y | |||||||||
| Vertical | Z | |||||||||
| Overall Capacity | Rear Provision Positions | |||||||||
| PP. | Number of Rear Tiedowns | Provision | 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| MIL-STD-209K data - Longitudinal | X | |||||||||
| Lateral | Y | |||||||||
| Vertical | Z | |||||||||
| Overall Capacity | ||||||||||
| X - Longitudinal Dimension: distance to the front of item | ||||||||||
| Y - Lateral Dimension: distance to the centerline of item | ||||||||||
| Z - Vertical Dimension: distance to ground |
Verification/validation of tiedown capacities either via testing or analysis is required
Pictures-Drawings
| PICTURES | File Number | 201x.xx.xx |
| Please include all necessary pictures to help us evaluate the vehicle. | ||
| Alternative Supplemental Tiedown locations for air transport. |
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