The long, pendulous ears on Cocker Spaniels are prone to ear infections if they are not cleaned on at least a weekly basis. Some Cocker Spaniels may need their ears cleaned 2-3 times per week. While playing with or brushing your Cocker Spaniel, lift the ear flap and sniff the ear. If it smells clean, it is healthy.
More importantly, though, Grand Canyon helicopters (West Rim AND South Rim) have a weight surcharge if a passenger weighs more than a specified limit. The weight limit is set by the tour operator, but it's usually either 275 or 300 pounds. So, as a general rule, passengers who weigh more than that will need to pay a weight surcharge before they're allowed to board their chopper. The amount of the surcharge is set by the tour company that's operating the flight.
The empty weight and empty weight CG are obtained from the latest weight and balance information in the helicopter flight manual. In this case 1,004 pounds and 101.4. 2. The total moments for the fuel load and seat load are found from the loading chart (fig. 48).