Aircraft Galley, Lavatory, and Water Systems
Ryan Koubek & Mike MaloyTeam 3
September 14, 2006Aircraft Design Class
Lavatory, Galley, and Water System
• Important to include in preliminary design.– Large investment in weight– Large investment in volume
Typical Layouts
Galley
• All food prep is done on the ground• Equipment
– Coolers– Warmers– Coffee Makers
• 90 – 100 KVA allocated
http://www.airchive.com/SITE%20PAGES/PLANE-INTERIORS.html
http://images.google.com/imgres?imgurl=http://staff.tay.ac.uk/bstmjc/cabin_galley_s.jpg&imgrefurl=http://staff.tay.ac.uk/bstmjc/mjc_research1.htm&h=512&w=640&sz=66&hl=en&start=2&tbnid=fiDKSomwSI52VM:&tbnh=110&tbnw=137&prev=/images%3Fq%3Dairplane%2Bgalley%26svnum%3D10%26hl%3Den%26lr%3D%26sa%3DG
Water supply
• .3 gallons per person• Pressurized by pneumatic system• Water quality regulated by EPA
– Tanks have to be flushed and disinfected
http://www.edocorp.com/CompositesTanksVessels.htm
http://www.generalecology.com/aircraftsystem.htm
http://www.taycoeng.com/pro03.htm
– Roskam, Jan. “Airplane Design: Layout Design of Landing Gear & Systems”
Lavatory
http://static.flickr.com/25/96134734_4cf183cc7f_m.jpg
Lavatories
• Rule of Thumb: 1 lavatory per 30 passengers
• They use very little water (about 0.5 gallons per flush)
LavatoryThey can use much smaller diameter sewer pipesThey can flush in any direction, including upward. Since a vacuum system does not use gravity to move the water, there is nothing to stop the sewer pipe from going straight upThey can be put anywhere in the aircraft
Waste System
• Self contained• Waste tanks and flushing units mix the
waste with chemicals• Vacuum flush from in flight pressure
differential (No gravity plumbing)• Must be serviced after every flight.• Drain locations need to be positioned
carefully
– Roskam, Jan. “Airplane Design: Layout Design of Landing Gear & Systems”
– Roskam, Jan. “Airplane Design: Layout Design of Landing Gear & Systems”
Removing Waste
http://www.airport-technology.com/contractors/groundequipment/combi_box/combi_box5.html
Food for Thought
• Doesn't apply for UAVs or HPA• Military Transports?
Works Cited
• “Aircraft galley systems . . . ” http://www.freshpatents.com/Aircraft-galley-systems-and-methods-for-managing-electric-power-for-aircraft-galley-systems-dt20050609ptan20050121978.php
• “Composites: Tanks and Vessels,”EDO Corp. http://www.edocorp.com/CompositesTanksVessels.htm
• Roskam, Jan. “Airplane Design: Layout Design of Landing Gear & Systems”