The Airstream 28" Internationals have a factory literature tongue weight of 950 pounds, the heaviest tongue weight of the Airstream product line. The collective experiences are the literature tongue weights are low.
When I picked up our 2013 25FB International Serenity, the dealer had added the street side and rear awnings, a 155 watt solar panel in addition to the 600 watt inverter. We added the Hensley hitch head. The fresh water tank and propane tanks were full. The literature tongue weight of 833 pounds was now 1,150 pounds.
I put all the tools and heavy gear in the rear of the coach, so when loaded for camping, the tongue weight was 1,175 pounds.
After major modifications, the literature tongue weight of 773 pounds tongue weight of the 2014 31' Classic became 1,350 pounds. After upgrading to a 600 amp-hour lithium battery and removing the four Lifeline 92 pound model act 300 amp-hour 6Vdc batteries and their enclosure on the tongue of the trailer, the weight is now 1,175 pounds.
The design of the 28' models has a lot of the storage under the front sofa with side return assembly which will make keeping the tongue weight under 1,200 pounds a challenge if a Hensley or ProPride hitch is installed. It could even be heavier.
Thus the selection of tow vehicle has to be predicated on one that has enough payload (usually the base model in the 1/2 ton world) for the tongue weight plus:
camper shell weight to cover stored 'stuff' in the bed of pickup which could include grill, generator(s), gas for grill and gasoline for generator(s), chairs, and tables etc
the driver and passenger(s)
It all adds up very quickly. One does not want to drive with the headlamps aimed at the tree tops and little weight on the steering wheels.
Also, many of the factory installed towing receivers are only rated 1,200 pounds of tongue weight. That may not be the number if a weight distribution style hitch is installed. Some brands may derate the receiver to compensate for the leverage forces imposed when the weight distribution system is connected.
We retrofitted a Curt receiver rated 2,550 pounds tongue weight and a 17,000 pound trailer on our 2012 Dodge Ram 2500HD Cummins.
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels