Reading cargo capacity constraints before they cost you

Figures are drawn from the published sources listed at the end of this article. Permit lead times are indicative and set by each civil aviation authority.

Capacity is not a single number

Teams often speak about air cargo capacity as if it were tonnage on a route. In practice a shipment can be blocked by any one of several independent constraints: chargeable weight versus volume, single-piece dimensions and door limits, floor loading and centre-of-gravity restrictions, dangerous goods acceptance, temperature or security handling capability, customs and permit readiness, and the offload equipment available where the aircraft lands.

Because these constraints are independent, a shipment can be perfectly fine on tonnage and still be undeliverable. Planning that only checks weight discovers the rest late — usually at acceptance, sometimes at destination.

The constraints that actually bite

Across project and industrial cargo in the region, a short list recurs. Working through it before quoting removes most of the surprises.

• Dimensions against the door and hold geometry of the aircraft type actually available, not the type assumed.
• Volumetric weight exceeding actual weight, which changes the commercial basis of the shipment.
• Dangerous goods classification, packing and acceptance capability at both origin and transit points.
• Documentation completeness — invoices, packing lists, certificates, licences — where one missing item stops the whole consignment.
• Customs clearance capacity and working hours at destination, including bonded movement if clearance is inland.
• Ground handling and offload equipment at destination: forklift capacity, high loader availability, apron space, ramp access.
• Onward road capability, including vehicle type, route restrictions, escort requirements and site access.

Plan door-to-door, not airport-to-airport

The commercial promise made to a client is almost always a delivery date at a site, not an arrival time at an aerodrome. Yet plans are frequently built around the uplift and left vague on the legs either side, which is exactly where time is lost.

Building the plan from the site backwards exposes the real critical path. Frequently the constraint is not air capacity at all: it is a customs office's working hours, a bonded transfer, an escort requirement, or the fact that the only suitable vehicle for the final leg is committed elsewhere.

Choose the mode honestly

Not every urgent shipment should fly, and not every routine shipment should go by sea or road. The comparison should be made on total landed cost and the actual date the goods can be used, including clearance realities and the cost of the downtime being avoided.

For genuinely time-critical items, charter, on-board courier and part-load options each have a place. For heavy or oversized project cargo, the honest answer sometimes is a multimodal plan with a longer transit and a far more reliable date. Saying so early protects the client's programme and the provider's credibility.

Build the exception plan into the quote

Assume something will move: a rolled shipment, a document query, a clearance delay, an equipment failure at destination. Naming those risks in advance, with a stated response for each, converts them from crises into managed events.

That means a fallback routing, a secondary handling option, an agreed escalation contact on both ends, and a single visibility point that tells everyone the same status. It costs little at quotation stage and is the difference between an explained delay and a lost account.

How we work it

Earotine coordinates aviation logistics as a door-to-door problem: constraint screening before booking, documentation readiness, clearance coordination, handling and offload capability at destination, onward transport, and one point of visibility from collection to delivery.

Uplift is arranged through carriers and approved operators. Our accountability is the plan around it — including telling a client early when air is not the right answer.