Air cargo tools: chargeable weight, airport lookup, TACT classes.
Billing weight for air shipments — the greater of actual gross and volumetric weight, rounded up to the next 0.5 kg per IATA. Supports the 6000 (air) and 5000 (express) dim factors.
How air-cargo charges are filed — the M minimum, N normal, Q weight-break rates, and commodity / ULD class rates from the IATA TACT rulebook.
Search and lookup IATA (3-letter) and ICAO (4-letter) codes for international airports and dedicated cargo hubs.