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estimated that the glider would cost US$ 100 to complete and saved their busfare money by walking to and from school. They were not permitted to own bicycles or to hitchhike, as their father considered those methods of transportation too dangerous. They hid the glider construction project from him,
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during the week and would only enter his barn on weekends. The glider was constructed during weekdays and dismantled and hidden on the weekends. At the point in construction when the aircraft parts had become too large to hide, the brothers decided to assemble the aircraft as far as they could and
170:
The New York Times story greatly impressed the members of the
Mercury Model Airplane Club including Atlee Hauck, Ernie Whidden, Robert Yellow and brothers Paul, Ernest and Bill Schweizer. As a result, they decided to convert the model club to a gliding club and build a primary glider. The club
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The club members taught themselves to fly using the glider launched by shock cord. They enlisted the aid of local children to pull the shock cord, but after the novelty appeal wore off, they had difficulties finding sufficient people for bungee launching. They switched to auto-tow using a
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The glider was built with a wooden structure and steel fittings. The wings and tail surfaces were covered in fabric. Typical of the primary gliders of its day, the fuselage was open and featured an open seat with stick and rudder three-axis controls. The aircraft was designed to be
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volunteers under the direction of Ernst
Schweizer. The glider was completed, registered as N50SZ and flown in 1989 to celebrate 50 years of Schweizer sailplanes. The aircraft was flown by each of the Schweizer brothers and was donated to the
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Ernest
Schweizer recognized the need to ensure that the glider was designed properly and so, even though he was still in high school, he conducted a stress analysis of the design.
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The
Schweizer brothers were concerned that their father might not let them fly the glider when it was completed and so they built it in secret. Their father worked in
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A replica of the original 1-1 was constructed by a group of volunteers led by Ernst
Schweizer in 1989 to celebrate 50 years of Schweizer sailplane construction.
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5 membership fee. This rather substantial amount caused only those serious about glider flying to remain to build the aircraft, led by the
Schweizer brothers.
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The glider first flew on 19 June 1930, when Ernest
Schweizer was 18 years old, Paul was 17 and Bill was 12. The final cost of the aircraft was US$ 135.
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show their father. He saw that they had done too much work to be stopped at that point and did not object to the completion of the glider.
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and flew for more than four hours, soaring in the winds that flowed up over the dunes. This flight was given front-page coverage in the
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Ernst
Schweizer designed the then-unnamed primary glider, drawing inspiration from photographs of German designs then in use. The
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The SGP 1-1 was flown extensively during the summer of 1930, although the total flying time for the year was less than one hour.
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135:. In order to gain publicity AMAC sponsored some soaring flights at Corn Hill, Truro, Massachusetts,
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department store chain, provided financial backing for a glider pilot training school run by the
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159:'s record duration flight by a factor of five. Hesselbach flew again on 31 July 1928 from
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designs that the
Schweizers created and the first of over 5700 aircraft built by them.
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Detailed photographs of the replica
Schweizer SGP 1-1 in the National Soaring Museum
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The success of the 1-1 led the Schweizer brothers to continue on to design the
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Photograph of the replica Schweizer SGP 1-1 in the National Soaring Museum
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with an elastic shock cord and had a single skid for landing gear.
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and constructed by the Mercury Glider Club between 1929 and 1930.
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Wings Like Eagles, The Story of Soaring in the United States
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A replica of the original 1-1 was constructed by a group of
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to pull the shock cord. This method allowed higher flights.
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glider. This flight was of 57 minutes duration and bettered
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The SGP 1-1 has also been referred to as the SGU 1-1.
415:, pages 14-22. Smithsonian Institution Press, 1988.
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Aircraft of comparable role, configuration, and era
183:even though it was built in the Schweizer's barn.
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127:In 1928 J.C. Penney III, son of founder of the
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151:made the first flight on 28 July 1928 in the
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109:The 1-1 became the first in a line of 38
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369:"Schweizer Aircraft Corporation History"
367:Schweizer Aircraft Corporation (2006).
133:American Motorless Aviation Corporation
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425:
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439:Martin, Thomas J. (October 2005).
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280:32 ft 0 in (9.8 m)
274:15 ft 0 in (4.6 m)
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465:Smithsonian Institution (2004).
214:Schweizer Metal Aircraft Company
487:Federal Aviation Administration
941:1930s United States sailplanes
517:"Sailplanes in Our Collection"
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141:South Wellfleet, Massachusetts
1:
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329:Stamer Lippisch SG-38 Zögling
249:where it remains on display.
137:Highland Light, Massachusetts
961:Aircraft first flown in 1930
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80:2 (including 1989 replica)
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98:, single-seat, high-wing
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920:William (Bill) Schweizer
607:Sailplanes & Gliders
467:"Directory of Airplanes"
441:"SGP 1-1 Primary Glider"
161:Corn Hill, Massachusetts
861:Reconnaissance Aircraft
259:General characteristics
247:National Soaring Museum
147:. AMAC's chief pilot,
123:Design and development
793:Agricultural Aircraft
102:that was designed by
540:: CS1 maint: year (
319:Elliotts Primary EoN
52:Mercury Glider Club
814:Amphibious Aircraft
515:Munson, J. (n.d.).
411:Schweizer, Paul A:
236:Aircraft on display
220:Operational history
956:High-wing aircraft
951:Homebuilt aircraft
946:Schweizer aircraft
600:Schweizer Aircraft
447:on August 27, 2007
242:Schweizer Aircraft
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878:RU-38 Twin Condor
324:Jongblood Primary
210:Schweizer SGU 1-2
88:Schweizer SGP 1-1
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915:Paul A Schweizer
910:Ernest Schweizer
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519:. Archived from
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493:. Archived from
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443:. Archived from
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371:. Archived from
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212:and to form the
149:Peter Hesselbach
104:Ernest Schweizer
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61:Ernest Schweizer
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31:Type of aircraft
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341:List of gliders
314:Detroit G1 Gull
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189:bungee launched
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38:National origin
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553:External links
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491:"FAA Registry"
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253:Specifications
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165:New York Times
157:Orville Wright
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100:primary glider
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28:Primary glider
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523:on 2011-05-16
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421:0-87474-828-3
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375:on 2008-03-10
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335:Related lists
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96:amateur-built
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70:19 June 1930
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67:First flight
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49:Manufacturer
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43:United States
41:
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784:X-26 Frigate
613:
525:. Retrieved
521:the original
510:
499:. Retrieved
495:the original
489:(May 2008).
481:
470:. Retrieved
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449:. Retrieved
445:the original
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377:. Retrieved
373:the original
334:
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307:
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285:Aspect ratio
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258:
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227:Ford Model A
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169:
129:J. C. Penney
126:
118:
115:
108:
87:
85:
76:Number built
830:Helicopters
153:Darmstadt I
935:Categories
821:TSC-1 Teal
527:2008-04-15
501:2008-05-02
472:2008-05-03
451:2008-05-02
379:2008-05-02
347:References
171:charged a
278:Wingspan:
180:teenagers
57:Designer
536:cite web
303:See also
145:Cape Cod
92:American
19:SGP 1-1
873:SA 2-37
298:Clark Y
294:Airfoil
272:Length:
903:People
800:Ag Cat
419:
111:glider
90:is an
852:S-434
649:15-11
266:Crew:
24:Role
887:UAVs
868:QT-2
779:2-38
774:2-37
769:1-36
764:1-35
759:1-34
754:2-33
749:2-32
744:2-31
739:1-30
734:1-29
729:7-28
724:2-27
719:1-26
714:2-25
709:1-24
704:1-23
699:2-22
694:1-21
689:1-20
684:1-19
679:2-18
674:1-17
669:1-16
664:1-15
659:6-14
654:2-12
644:9-10
542:link
417:ISBN
173:US$
139:and
86:The
847:333
842:330
837:300
639:2-8
634:1-7
629:1-6
624:1-3
619:1-2
614:1-1
268:One
143:on
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538:}}
534:{{
427:^
388:^
355:^
216:.
167:.
94:,
592:e
585:t
578:v
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530:.
504:.
475:.
454:.
382:.
296::
289:8
287::
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