Here’s the data on our C-28 on factory triple axle E-Z Loader trailer from this year:
Ram 2500 Weights
1/2 Tank gas + driver
Front axle 2,950 pounds
Rear axle 4,050 pounds
Total 7,000 pounds
With 2 passengers 7,180
5/13 towed weight
Two passengers with light baggage inside truck cab
Dinghy (82 pounds) in truck bed
18 gallons water in boat
30 gallons fuel in boat
Normal cruising gear in boat
Front axle truck weight 3,900 pounds
Rear axle truck weight 4,420 pounds
Trailer weight 11,440 pounds
Total 19,760 pounds Gross Combined Weight
Boat and trailer total 12,580 pounds
9/23 towed weight
Two passengers with light baggage inside truck cab
Dinghy (82 pounds) in truck bed
10 gallons water in boat
23 gallons fuel in boat
Normal cruising gear in boat
Front truck axle weight 3,900 pounds
Rear truck axle weight 4,100 pounds
Trailer weight 11,200 pounds
Total 19,200 pounds Gross Combined Weight
Boat and trailer total 12,200 pounds
A 13,000 pound towing capacity 1/2 ton truck might work but not a huge safety margin in my opinion. Especially if that 13,000 pound towing capacity is only for a weight distribution hitch. Remember you probably can’t use a weight distribution hitch on an aluminum framed boat trailer!