Boron has also been used in some rockets as an ignition source. Boron-10, one of the naturally occurring isotopes of boron, is a good absorber of neutrons and is used in the control rods of nuclear reactors, as a radiation shield and as a neutron detector. Boron filaments are used in the aerospace industry because of their high-strength and lightweight.
The trailer is the big variable here, but the my 20' pontoon boat weighs about 1600 pounds with all the furniture on. The trailer will probably weigh about 1600-1800 if it's made of steel, so about 3200 lbs is probably about right. The trailer is the big variable here, but the my 20' pontoon boat weighs about 1600 pounds with all the furniture on. The trailer will probably weigh about 1600-1800 if it's made of steel, so about 3200 lbs is probably about right. Minor edit?
Weigh over 26,000 pounds, determined by the highest of the following weights: 1  manufacturerâs gross vehicle weight rating (GVWR) 2  manufacturerâs gross combination weight rating (GCWR) when the towed unit has a GVWR, registered weight or actual gross weight over 10,000 pounds. 3  actual weight. ââ 4 registered weight.