ButtercupSTOL@groups.io

Building the Steve Wittman "Buttercup" Utility aircraft

We all want to Fly FAST and Land Slow.....Steve Wittman solved the problem
The Buttercup was built as a UTILITY Hauler...It almost went into production, but canceled due to WWII (read the story- PDF file in "Links")

38-40 (indicated) Slow Flight , and speeds near 150 mph on 85hp

It will Qualify as LSA (No Medical)

Let's build some Buttercups !!!


Example of a Buttercup :
Engine Model.................O-200
Engine Horsepower........100
Propeller.......................66/55
Cruise Speed.................125 mph
Top Speed.....................145 mph
Landing Speed................40 mph
Maximum Speed(Vne)...150 mph
Stall (clean)......................51 mph
Rate of Climb.............550 ft./min
Gross Weight............1290 Pounds
Empty Weight............790 Pounds
Payload.....................500 Pounds
Wing Span....................29'5"
Wing Area....................132 sq.ft.
Aircraft Length.............19' 6"
Fuselage Height............Cabin 44"
Fuel Capacity..............20 Gallons
Seats 2..............(side-by-side)
Cabin Width..................40"
Takeoff Distance............300 feet
Landing Distance...........200 feet
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See the Building Log at "WINGS FORUM"
Wittman Aircraft section - easy to browse

   http://www.wingsforum.com/viewforum.php?f=320
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