Dr Pixley Ka-Isaka Hospital
When transporting a patient, a helicopter air ambulance’s flexibility can be significant, enabling patients to reach the hospital as fast as possible. Helicopter air ambulances are often used for short flights since they have the unique ability to land directly on the roofs of hospitals. To ensure people’s smooth and safe transportation for this challenging project, Doppler had to comply with certain specifications and design guidelines.
Aviation laws stipulate that nothing can protrude around the helipad area when the helicopter lands. This means that the lift must finish flush with the helipad surface area when not in use, and it must be able to send the cabin up when staff and patients need to use the lift to come down.
This lift was specially designed to transport patients from the helipad to the emergency room under optimal conditions. For this reason, the region’s prevailing environmental conditions were highly considered. To provide stability and rigidity, the lift was equipped with two pistons that helped it reach its highest level and push the lift cabin outside the brick shaft to the helipad area. In addition, the lift is also fitted with a double “non-sway” chain system that keeps the cabin stable in its highest position, even during high winds.
Another factor that Doppler had to deal with was finding a solution to prevent the corrosion caused by the surrounding environment. To withstand the corrosive environment in which it is installed, the lift’s electrical system and boxes are IP-rated. To protect the lift’s steel structure, Doppler used a highly durable coating system (C5-M).