We offer several kind of towbars: standards, extensibles, smaller, for aircraft with turrets models FLIR, WESCAM.... All of them have "antioverweighting bars" (prevents abrupt pulls/brakings), as well as a shock absorber system in order to protect both towing vehicle and aircraft.
"For the same engine, the electrical engine torque is higher to any heat engine".
Following this principle, we have developed a product line that allows moving aircrafts so heavy with very small engines. But still, the best point of this product is that you just spend when is operated the gas pedal. You can use it a full day and recharge it when you finish the task. Forget old towbars, with the universal fitting you will save time and money.