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”