Aircraft maintenance and storage


Aircraft are extremely expensive machines, packed with complex systems and technologies. If they aren’t serviced and stored under controlled-humidity conditions, you’re likely to encounter problems like these:


  • Slower turnarounds and higher maintenance costs
  • Corrosion and other humidity-related damage to structures, avionics and equipment, increasing the risk of malfunctions
  • Longer turn-round times and reduced aircraft availability
  • Higher overall operating costs as result of increased service and maintenance expenditure

Controlled humidity means
less risk of operational glitches

Humidity challenges for aircraft maintenance and storage facilities

Aircraft encounter a vast range of weather, temperature and air conditions in flight, while taxiing and when inside service and maintenance facilities. Their structures feature lots of different materials, surfaces and cavities, and different parts of the plane are at very different temperatures at the same time.

All this adds up to ideal conditions for the formation of condensation, and the corrosion, downtime and maintenance costs that result from this.

Traditional stop-gaps like heating, fans and ventilation are simply incapable of dealing with the many problems caused by uncontrolled humidity and condensation. Replacing one body of air plagued by uncontrolled humidity with another – with just as little control – doesn’t make the problem go away.

Eliminating the problem

Temperature differences between hot or cold materials and the surrounding air result in pretty-much-ideal conditions for corrosion on metal aircraft parts as well as readiness-impacting glitches in both mechanicals and electronics.

In commercial aviation, aircraft only earn revenue when they’re in service. For military operators, mission availability and force effectiveness depend on the required number of aircraft being serviceable at the right time.

In addition, military operations now often involve increasing emphasis on expeditionary, multi-force deployments – which can mean maintenance work has to be carried out in less-than-ideal conditions in unpredictable, extreme environments as well as in temporary structures.

You can notch up a whole series of practical, cost-saving benefits by controlling the point at which the water vapour in the air inside your hangar or maintenance facility condenses (the dew point), so such condensation problems simply cannot arise. Bringing the relative humidity below 65% at 20oC – and keeping it there – completely does away with any condensation problems you may be encountering in your organisation’s aircraft maintenance setup.

Cotes dehumidification systems aim to reduce downtime and delays from your operating equations, and to reduce the duration and costs of whatever maintenance work needs to be done.

How you benefit

  • Maintain better control of air conditions in places where you shelter, store and work on aircraft
  • Prevent corrosion and other humidity-related damage to structures, avionics and equipment, rolling back the risk of equipment malfunctions
  • Greater aircraft availability, resulting in better ROI
  • Lower overall operating costs as result of reduced service and maintenance expenditure
  • Reduce energy consumption while doing so, by using unique Cotes heat recovery modules

How Cotes solutions stand out

Cotes solutions for tackling undesirable humidity in aircraft maintenance and storage facilities stand out
  • Compact and versatile – you can fit them in just about anywhere
  • Built for toughness – long service life
  • Easy to operate, easy to service
  • Low energy consumption
  • Big knock-on benefits in aircraft availability for service

Related industries

For more on preventing humidity problems,
contact Peter Lange +45 5167 2904