Re: Pontoon boat trailer screw jacks
If I understand your question correctly it has to do with the tongue weight of the (properly) loaded boat-on-trailer combination.
2,500 lbs for the boat + 1,200 lbs (approx) for the trailer = 3,700 lbs combined
tongue weight at 10% of total = 370 lbs
tongue weight at 15% of total = 555 lbs
A typical trailer jack might have a capacity of 1,250 lbs so you'd be within the range of safety given that 555-lb figure above. Even if your trailer weighed 1,500, the combined weight would be 4,000, the tongue weight max would be 600 and that's half of your typical trailer jack capacity in this case.
