CTT Systems Not All Wet

The cabin of a long-range executive jet is drier than Death Valley-increasing fatigue and making passengers susceptible to respiratory problems and infections. Sweden's CTT Systems (Booth 1813) can fix this problem with its Zonal Comfort System, on show here for the first time. The system can raise cabin humidity to a minimum of 25%.

While several companies offer cabin humidification systems, CTT says that its approach is unique because it combines humidification with another of the company's technologies, the Zonal Drying System. The trouble with adding moisture to the cabin is that it tends to condense on the aircraft structure, wasting water, causing "rain in the plane" and raising the risk of corrosion and electrical problems.

The Zonal Drying System, operational on more than 100 aircraft, removes water from the sidewalls and attic spaces of the cabin. The Zonal Comfort System uses the same technology. Because the water is recovered, purified and re-used, the CTT systems also save weight because less water need be carried on board.

Lufthansa Technik, a long-term partner and customer of CTT, has purchased the Zonal Comfort System for several customer BBJ aircraft. Jet Aviation has installed the system on a BBJ and a 747SP, and SAS is using it in the business-class cabins of its Boeing 767 fleet.

By Bill Sweetman