Bowlus SP-1 Paperwing
The Bowlus SP-1 Paperwing was an American high-wing cantilever monoplane, single-seat, glider that was designed in 1928 and completed by William Hawley Bowlus on January 1, 1929. The SP-1 was Bowlus' sixteenth glider, and was test flown at Lindbergh Field in San Diego in January, 1929. Later tests were also made from hillsides near Bonita, California in April, 1929. SP-1 received identification mark "493" from the United States Department of Commerce and was one of the first licensed gliders in the United States. Many refer to the Bowlus SP-1 as the first sailplane of U.S. design and construction. 
Q30
American
LOC
Q180173
glider
Concept
Q959422
William Hawley Bowlus
PER
Q1333923
Lindbergh Field
LOC
Q892613
Bonita, California
LOC
Q4951273
Bowlus SP-1 Paperwing
MISC
1928-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1928
DATE
1929-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
January 1, 1929
DATE
1929-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1929
DATE
1929-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1929
DATE
-1^^http://www.w3.org/2001/XMLSchema#decimal
-1
NUMBER
-1^^http://www.w3.org/2001/XMLSchema#decimal
-1
NUMBER
-1^^http://www.w3.org/2001/XMLSchema#decimal
-1
NUMBER
+493^^http://www.w3.org/2001/XMLSchema#decimal
493
NUMBER
-1^^http://www.w3.org/2001/XMLSchema#decimal
-1
NUMBER
country
first flight
first flight
first flight