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View Full Version : SmartFish: Lifting-body Prototype



sarongsong
2007-Apr-12, 07:29 PM
April 9, 2007
A team of Swiss aircraft designers are now flying a small model prototype of SmartFish (http://www.smartfish.ch/index.cfm/fuseaction/show/path/1-2.htm), a lightweight and fuel-efficient hydrogen fuel cell-powered...turbofan...with an aerodynamic configuration known as a lifting body...Whether this technology can scale up to a full-size aircraft is anybody's guess... SciFiTech (http://www.smartfish.ch/index.cfm/fuseaction/show/path/1-2.htm) http://bautforum.com/images/icons/icon7.gif

Larry Jacks
2007-Apr-12, 08:37 PM
I saw that on AvWeb today. It looks very cool. Their design has a very low aspect ratio. which means it'll have high induced drag at higher angles of attack (such as takeoff, climb, and landing). That generally hurts climb performance - something that's very useful for those of us flying from high density altitude airports. Low aspect ratios are good for high speed cruising (see Concorde).

Since it uses a fuel cell, it appears to be an electric powered ducted fan rather than a turbofan. I know of a few attempts to create a full sized ducted fan private plane but I don't know of any really successful ones.