What can be done to remove frost from an aircraft parked on the ramp?

Using de-icing equipment is the most effective and appropriate method for removing frost from an aircraft parked on the ramp. De-icing equipment typically includes heated fluids designed to melt ice and frost on aircraft surfaces. These fluids help in maintaining both the aerodynamic properties and safety of the aircraft before flight.

Applying de-icing solutions ensures that all surfaces are treated uniformly, reducing the risk of leaving any frost behind that could affect performance. It's especially important to ensure that critical areas, such as the wings and control surfaces, are clear of frost to maintain controllability and safety in flight.

The other methods lack effectiveness or safety. For example, waiting for the sun to burn off the frost may not be reliable due to varying weather conditions and the amount of time it could take. Spraying water on the frost could inadvertently freeze again or create a slick, unsafe surface. Covering the aircraft with a tarp may provide a temporary barrier but does not address the frost already on the aircraft, and once uncovered, the frost would still remain. Thus, employing de-icing equipment is the best strategy to ensure the aircraft is airworthy before departure.