Piper J-3 Cub

File:Piperj3c.jpg

The Taylor E-2 Cub first appeared in 1930, built by Taylor Aircraft in Bradford, Pennsylvania. Sponsored by William T. Piper, a Bradford industrialist and investor, the affordable E-2 was meant to encourage greater interest in aviation. Later in 1930, the company went bankrupt, with Piper buying the assets, but keeping founder C. Gilbert Taylor on as president. In 1936, an earlier Cub was altered by employee Walter Jamouneau to become the J-2 while Taylor was on sick leave. Some believed the "J" stood for Jamouneau, while aviation historian Peter Bowers concluded the letter simply followed the E, F, G and H models, with the letter "I" skipped because it could be mistaken for the numeral "1".{{cite web | url=http://www.nasm.si.edu/research/aero/aircraft/piperj3.htm | title=Piper J-3 | work=Aircraft of the Smithsonian | access-date=2006-04-02 | url-status=dead | archive-url=https://web.archive.org/web/20060303180134/http://www.nasm.si.edu/research/aero/aircraft/piperj3.htm | archive-date=2006-03-03 }}Peter M. Bowers, Piper Cubs (Tab Books 1993) When he saw the redesign, Taylor was so incensed that he fired Jamouneau. Piper, however, had encouraged Jamouneau's changes and hired him back. Piper then bought Taylor's share in the company, paying him $250 per month for three years.

{{cite web | url=http://www.historynet.com/theyre-not-all-piper-cubs-november-97-aviation-history-feature.htm | title=They're not all Piper Cubs | work=Aviation History | author=Spence, Charles | date=23 September 1997 | access-date=2011-09-06 }}

Although sales were initially slow, about 1,200 J-2s were produced before a fire in the Piper factory, a former silk mill in Bradford, Pennsylvania, ended its production in 1938. After Piper moved his company from Bradford to Lock Haven, Pennsylvania, the J-3, which featured further changes by Jamouneau, replaced the J-2. The changes integrated the vertical fin of the tail into the rear fuselage structure and covered it simultaneously with each of the fuselage's sides, changed the rearmost side window's shape to a smoothly curved half-oval outline and placed a steerable tailwheel at the rear end of the J-2's leaf spring-style tailskid, linked for its steering function to the lower end of the rudder with springs and lightweight chains to either end of a double-ended rudder control horn. Powered by a 40 hp (30 kW) engine, in 1938, it sold for just over $1,000.Piper J-3 Cub Film Series (TM Technologies, footage from 1937–1948 shows step-by-step construction. 110 minutes.)

Several alternative air-cooled engines, typically flat-fours, powered the J-3 Cubs, designated J3C when using the Continental A series, J3F using the Franklin 4AC, and J3L with the Lycoming O-145. Very few examples, designated J3P, were equipped with Lenape Papoose 3-cylinder radial engines.

File:1944_Piper_Cub_J-3C-100_HB-OUE_with_rare_Rolls-Royce_100hp_engine,_righthand_side.jpg

The outbreak of hostilities in Europe in 1939, along with the growing realization that the United States might soon be drawn into World War II, resulted in the formation of the Civilian Pilot Training Program (CPTP). The Piper J-3 Cub became the primary trainer aircraft of the CPTP and played an integral role in its success, achieving legendary status. About 75% of all new pilots in the CPTP (from a total of 435,165 graduates) were trained in Cubs. By war's end, 80% of all United States military pilots had received their initial flight training in Piper Cubs.{{cite web | url=http://www.centennialofflight.gov/essay/GENERAL_AVIATION/piper/GA6.htm | title=The Piper Cub | author=Guillemette, Roger | work=US Centennial of Flight Commission | access-date=2006-04-02 | url-status=dead | archive-url=https://web.archive.org/web/20101121082920/http://centennialofflight.gov/essay/GENERAL_AVIATION/piper/GA6.htm | archive-date=2010-11-21 }}

The need for new pilots created an insatiable appetite for the Cub. In 1940, the year before the United States entered the war, 3,016 Cubs had been built. Wartime demands soon increased that production rate to one Cub being built every 20 minutes.

{{Main|Piper Flitfire}}

File:Piper J-3 Flitfire.JPG

Prior to the United States entering World War II, J-3s were part of a fund-raising program to support the United Kingdom. Billed as a Flitfire, a Piper Cub J3 bearing Royal Air Force insignia was donated by W. T. Piper and Franklin Motors to the RAF Benevolent Fund to be raffled off. Piper distributors nationwide were encouraged to do the same. On April 29, 1941, all 48 Flitfire aircraft, one for each of the 48 states that made up the country at that time, flew into La Guardia Field for a dedication and fundraising event which included Royal Navy officers from the battleship HMS Malaya, in New York for repairs, as honored guests.{{cite magazine|title=Shindig at N.Y. Airport Opens Fund Drive for R.A.F|magazine=Life|date=12 May 1941|url=https://books.google.com/books?id=sUwEAAAAMBAJ&pg=PA36|page=36}}{{cite web|title= Alamo Liaison Squadron|url= http://www.als-cannonfield.com/Flitfire.htm|access-date= September 4, 2010|archive-date= November 10, 2016|archive-url= https://web.archive.org/web/20161110000246/http://als-cannonfield.com/Flitfire.htm|url-status= dead}} At least three of the original Flitfires have been restored to their original silver-doped finish.{{cite web|title=Museum Guide|publisher=North Carolina Aviation Museum}}

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Minutes before the 1941 Attack on Pearl Harbor, Machinist Mate 2nd Class Marcus F. Poston, a student pilot, was on a solo flight through K-T Flying Service, piloting a Piper Cub J-3 over the valley of Oahu. Poston was flying just as the Japanese planes began appearing over the island and was subsequently shot down. Poston managed to bail out and parachute to safety. The Piper J-3 Cub was the first American plane to be shot down in World War II.

The Piper Cub quickly became a familiar sight. First Lady Eleanor Roosevelt took a flight in a J-3 Cub, posing for a series of publicity photos to help promote the CPTP. Newsreels and newspapers of the era often featured images of wartime leaders, such as Generals Dwight Eisenhower, George Patton and George Marshall, flying around European battlefields in Piper Cubs.

Civilian-owned Cubs joined the war effort as part of the newly formed Civil Air Patrol, patrolling the Eastern Seaboard and Gulf Coast in a constant search for German U-boats and survivors of U-boat attacks.Campbell, Douglas E., "Volume III: U.S. Navy, U.S. Marine Corps and U.S. Coast Guard Aircraft Lost During World War II Listed by Aircraft Type", Lulu.com, {{ISBN|978-1-257-90689-5}} (2011), p. 374{{self-published source|date=June 2022}}{{self-published inline|date=February 2020}}{{cite web |url=http://www.af.mil/history/spotlight.asp?storyID=123032865 |title=Civil Air Patrol |work=Air Force Link |date=27 November 2006 |archive-url=https://web.archive.org/web/20080315152319/http://www.af.mil/history/spotlight.asp?storyID=123032865 |archive-date=15 March 2008}}{{cite journal |url=http://www.americainwwii.com/stories/guarding.html |title=Guarding the home skies |journal=America in WWII |publisher=310 Publishing |first=Drew |last=Ames |date=April 2007 |access-date=3 October 2008 |issn=1554-5296}}

Piper developed a military variant ("All we had to do," Bill Jr. is quoted as saying, "was paint the Cub olive drab to produce a military airplane"), variously designated as the O-59 (1941), L-4 (after April 1942) and NE (U.S. Navy). The L-4 Grasshopper was mechanically identical to the J-3 civilian Cub, but was distinguishable by the use of a Plexiglas greenhouse skylight and rear windows for improved visibility, much like the Taylorcraft L-2 and Aeronca L-3 also in use with the US armed forces. It had accommodations for a single passenger in addition to the pilot. When carrying only the pilot, the L-4 had a top speed of {{convert|85|mph|km/h|0|abbr=on}}, a cruise speed of {{convert|75|mph|km/h|0|abbr=on}}, a service ceiling of {{convert|12000|ft|m|0|abbr=on}}, a stall speed of {{convert|38|mph|km/h|0|abbr=on}}, an endurance of three hours,Fountain, Paul, The Maytag Messerschmitts, Flying Magazine, March 1945, p. 90: With one pilot aboard, the L-4 had a maximum endurance of three hours' flight time (no reserve) at a reduced cruising speed of 65 mph. and a range of {{convert|225|mi|km|0|abbr=on}}.Gunston, Bill and Bridgman, Leonard, Jane's Fighting Aircraft of World War II, Studio Editions, {{ISBN|978-1-85170-199-5}} (1989), p. 253 Some 5,413 L-4s were produced for U.S. forces, including 250 built for the U.S. Navy under contract as the NE-1 and NE-2.Frédriksen, John C., Warbirds: An Illustrated guide to U.S. Military Aircraft, 1915–2000, ABC-CLIO, {{ISBN|978-1-57607-131-1}} (1999), p. 270Bishop, Chris, The Encyclopedia of Weapons of World War II, Sterling Publishing Company, Inc., {{ISBN|978-1-58663-762-0}} (2002), p. 431

All L-4 models, as well as other tandem-seat light aircraft from Aeronca and Taylorcraft, were collectively nicknamed "Grasshoppers", although any liaison plane, regardless of manufacturer, was often referred to as a 'Cub'. The L-4 was primarily employed in World War II for artillery spotting and training liaison pilots, but short-range reconnaissance, medical evacuation, and courier or supply missions were not uncommon. During the Allied invasion of France in June 1944, the L-4's slow cruising speed and low-level maneuverability made it an ideal observation platform for spotting hidden German guns and armored vehicles waiting in ambush in the hedgerow bocage country south of the invasion beaches. For these and other operations, the pilot generally carried both an observer and {{convert|25|lb|kg|adj=on}} communications radio, a load that sometimes exceeded the plane's specified gross weight. After the Allied breakout in France, L-4s were occasionally equipped with improvised racks (usually in pairs or quartets) of infantry bazookas for attacking enemy vehicles. The most famous of these unlikely ground attack planes was an L-4 named Rosie the Rocketer, piloted by Maj. Charles "Bazooka Charlie" Carpenter, whose six bazooka rocket launchers were credited with eliminating several tanks and armored cars during its wartime service,What's New in Aviation: Piper Cub Tank Buster, Popular Science, Vol. 146 No. 2 (February 1945) p. 84Kerns, Raymond C., Above the Thunder: Reminiscences of a Field Artillery Pilot in World War II, Kent State University Press, {{ISBN|978-0-87338-980-8}} (2009), pp. 23–24, 293–294 especially during the Battle of Arracourt. L-4s could also be operated from ships, using the Brodie landing system.

After the war, many L-4s were sold as surplus, but a considerable number were retained in service.Edwards, Paul M., Korean War Almanac, Infobase Publishing, {{ISBN|978-0-8160-6037-5}} (2006), p. 502 L-4s sold as surplus in the U.S. were redesignated as J-3s, but often retained their wartime glazing and paint."Nicholas Aircraft Sales", Flying Magazine, April 1946, Vol. 38, No. 4, ISSN 0015-4806, p. 106

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An icon of the era and of American general aviation, the J-3 Cub has long been loved by pilots and nonpilots alike, with thousands still in use. Piper sold 19,073 J-3s between 1938 and 1947, the majority of them L-4s and other military variants. After the war, thousands of Grasshoppers were civilian-registered under the designation J-3. Sixty-five pre-war Taylor and Piper Cubs were assembled from parts in Canada (by Cub Aircraft Corporation Ltd.). After the war, 130 J-3C-65 models were manufactured in Hamilton, Ontario. Sixteen L-4B models, (known as the Prospector), were later manufactured. The last J-3 model was assembled from parts at Leavens Bros. Toronto in 1952.{{cite web |last1=Price |first1=Cameron |title=Cub Aircraft History |url=https://torontoaviationhistory.com/cub-aircraft-history |website=Toronto Aviation History |access-date=28 February 2020 |archive-date=January 22, 2022 |archive-url=https://web.archive.org/web/20220122153936/https://torontoaviationhistory.com/cub-aircraft-history/ |url-status=dead }} J-3 Cubs were also assembled in Denmark{{cite web |last1=Nikolajsen |first1=Ole |title=Cub Aircraft Co. Ltd. i Lundtofte 1937 - 1940 |url=http://www.ole-nikolajsen.com/danish%20cubs.pdf |website=Ole-Nikolajsen.com |access-date=28 February 2020 |archive-date=April 4, 2023 |archive-url=https://web.archive.org/web/20230404013123/http://www.ole-nikolajsen.com/danish%20cubs.pdf |url-status=dead }} and Argentina and by a licensee in Oklahoma.{{cite web |last1=Ford |first1=Daniel |title=Cub Production, 1931-2019 |url=http://www.pipercubforum.com/cubprod.htm |website=The Piper Cub Forum |access-date=28 February 2020}}

In the late 1940s, the J-3 was replaced by the Piper PA-11 Cub Special (1,500 produced), the first Piper Cub version to have a fully enclosed cowling for its powerplant and then the Piper PA-18 Super Cub, which Piper produced until 1981 when it sold the rights to WTA Inc. In all, Piper produced 2,650 Super Cubs. The Super Cub had a 150 hp (110 kW) engine which increased its top speed to 130 mph (210 km/h). Its range was {{convert|460|mi|km|0}}.

File:1944_Piper_Cub_J-3C-100_HB-OUE_with_rare_Rolls-Royce_100hp_engine.jpg

On 26 June 1950, one day after the Korean War broke out, the Republic of Korea Air Force flew L-4s to Dongducheon to support the ROK 7th Infantry Division against North Korean military by dropping two bombs from an observer in the rear seat. A total of 70 bombs were dropped until the following day, then aircraft were switched back to reconnaissance mission as bombs were depleted. South Korea lost 25 L-4s throughout the Korean War.{{Cite book |last=Bak |first=Dongchan |url=http://medcmd.mil.kr/user/imhc/upload/pblictn/PBLICTNEBOOK_202105270240172800.pdf |title=Korean War : Weapons of the United Nations |publisher=Ministry of Defense Institute for Military History |date=March 2021 |isbn=979-11-5598-079-8 |location=Republic of Korea |pages=463–466 |language=Korean |access-date=June 27, 2022 |archive-date=September 20, 2022 |archive-url=https://web.archive.org/web/20220920170621/http://medcmd.mil.kr/user/imhc/upload/pblictn/PBLICTNEBOOK_202105270240172800.pdf |url-status=dead }}

The United States Army also operated small numbers of L-4s, but were replaced by L-16 during the war. The L-4 was in service in many of the same roles it had performed during World War II, such as artillery spotting, forward air control and reconnaissance. Some L-4s were fitted with a high-back canopy to carry a single stretcher for medical evacuation of wounded soldiers.

Modernized and up-engined versions are produced by Cub Crafters of Washington and by American Legend Aircraft in Texas, as the Cub continues to be sought after by bush pilots for its short takeoff and landing (STOL) capabilities, as well as by recreational pilots for its nostalgia appeal. The new aircraft are actually modeled on the PA-11, though the Legend company does sell an open-cowl version with the cylinder heads exposed, like the J-3 Cub.{{Cite web |last=Clay |first=Rebecca A. |date=2013 |title=Not your grandfather's CE |url=https://doi.org/10.1037/e518652013-014 |access-date=2025-03-09 |website=PsycEXTRA Dataset}} An electrical system is standard from both manufacturers.{{Citation needed|date=January 2014}}

File:Piper J-3C-65 Cubimg 0505.jpg

The J-3 is distinguished from its successors by having a cowl that exposes its engine's cylinder heads — the exposed cylinders of any J-3's engine were usually fitted with sheet metal "eyebrow" air scoops to direct air over the cylinder's fins for more effective engine cooling in flight. Very few other examples exist of "flat" aircraft engine installations (as opposed to radial engines) in which the cylinder heads are exposed. From the PA-11 on through the present Super Cub models, the cowling surrounds the cylinder heads.Clark, Anders. (21 November 2014) "[https://disciplesofflight.com/worlds-iconic-airplane-piper-j-3-cub/ Piper J-3 Cub: The World's Most Iconic Airplane]". Disciples of Flight. Retrieved 21 August 2014.

A curiosity of the J-3 is that when it is flown solo, the lone pilot normally occupies the rear seat for proper balance, to balance the fuel tank located at the firewall. Starting with the PA-11, as well as some L-4s, fuel was carried in wing tanks, allowing the pilot to fly solo from the front seat.

File:o'brien's flyingcircus aerobaticsteam cotswoldairshow 2010 arp.jpg]]

File:J3 at dock.jpg

;J-3

:Equipped with a Continental A-40, A-40-2, or A-40-3 engine of {{convert|37|hp|kW|0|abbr=on}}, or A-40-4 engine of {{convert|40|hp|kW|0|abbr=on}}{{cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/9ae985fe2a4d8847862572c9006eda41/$FILE/ATTQ7W2D/ATC660.pdf|title = Approved Type Certificate 660|access-date = 2010-02-15|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date=October 1939}}

;J3C-40

:Certified 14 July 1938 and equipped with a Continental A-40-4 or A-40-5 of {{convert|40|hp|kW|0|abbr=on}}{{cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/f323caa28762f4c486257209007258d4/$FILE/A-691.pdf|title = AIRCRAFT SPECIFICATION NO. A-691|access-date = 2010-02-15|last = Federal Aviation Administration|author-link = Federal Aviation Administration|date=August 2006}}

;J3C-50

:Certified 14 July 1938 and equipped with a Continental A-50-1 or A-50-2 to -9 (inclusive) of {{convert|50|hp|kW|0|abbr=on}}

;J3C-50S

:Certified 14 July 1938 and equipped with a Continental A-50-1 or A-50-2 to -9 (inclusive) of {{convert|50|hp|kW|0|abbr=on}}, equipped with optional float kit

;J3C-65

:Certified 6 July 1939 and equipped with a Continental A-65-1 or A-65-3, 6, 7, 8, 8F, 9 or 14 of {{convert|65|hp|kW|0|abbr=on}} or an A-65-14, Continental A-75-8, A-75-8-9 or A-75-12 of {{convert|75|hp|kW|0|abbr=on}} or Continental C-85-8 or C-85-12 of {{convert|85|hp|kW|0|abbr=on}} or Continental C-90-8F of {{convert|90|hp|kW|0|abbr=on}}

;J3C-65S

:Certified 27 May 1940 and equipped with a Continental A-65-1 or A-65-3, 6, 7, 8, 8F, 9 or 14 of {{convert|65|hp|kW|0|abbr=on}} or an A-65-14, Continental A-75-8, A-75-8-9 or A-75-12 of {{convert|75|hp|kW|0|abbr=on}} or Continental C-85-8 or C-85-12 of {{convert|85|hp|kW|0|abbr=on}} or Continental C-90-8F of {{convert|90|hp|kW|0|abbr=on}}, equipped with optional float kit

;J3F-50

:Certified 14 July 1938 and equipped with a Franklin 4AC-150 Series 50 of {{convert|50|hp|kW|0|abbr=on}}{{cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/b517fb092ee72c198625720a0055b58a/$FILE/A-692.pdf|title = AIRCRAFT SPECIFICATION NO. A-692|access-date = 2010-02-15|last = Federal Aviation Administration|date=August 2006}}

;J3F-50S

:Certified 14 July 1938 and equipped with a Franklin 4AC-150 Series 50 of {{convert|50|hp|kW|0|abbr=on}}, equipped with optional float kit

;J3F-60

:Certified 13 April 1940 and equipped with a Franklin 4AC-150 Series A of {{convert|65|hp|kW|0|abbr=on}} or a Franklin 4AC-171 of {{convert|60|hp|kW|0|abbr=on}}

;J3F-60S

:Certified 31 May 1940 and equipped with a Franklin 4AC-150 Series A of {{convert|65|hp|kW|0|abbr=on}} or a Franklin 4AC-171 of {{convert|60|hp|kW|0|abbr=on}}, equipped with optional float kit

;J3F-65

:Certified 7 August 1940 and equipped with a Franklin 4AC-176-B2 or a Franklin 4AC-176-BA2 of {{convert|65|hp|kW|0|abbr=on}}

;J3F-65S

:Certified 4 January 1943 and equipped with a Franklin 4AC-176-B2 or a Franklin 4AC-176-BA2 of {{convert|65|hp|kW|0|abbr=on}}, equipped with optional float kit

;J3L

:Certified 17 September 1938 and equipped with a Lycoming O-145-A1 of {{convert|50|hp|kW|0|abbr=on}} or a Lycoming O-145-A2 or A3 of {{convert|55|hp|kW|0|abbr=on}}{{cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/654cec2e0f108d0a8625720900728d14/$FILE/a-698.pdf|title = AIRCRAFT SPECIFICATION A-698|access-date = 2010-02-15|last = Federal Aviation Administration|date=August 2006}}

;J3L-S

:Certified 2 May 1939 and equipped with a Lycoming O-145-A1 of {{convert|50|hp|kW|0|abbr=on}} or a Lycoming O-145-A2 or A3 of {{convert|55|hp|kW|0|abbr=on}}, equipped with optional float kit

;J3L-65

:Certified 27 May 1940 and equipped with a Lycoming O-145-B1, B2, or B3 of {{convert|65|hp|kW|0|abbr=on}}

;J3L-65S

:Certified 27 May 1940 and equipped with a Lycoming O-145-B1, B2, or B3 of {{convert|65|hp|kW|0|abbr=on}}, equipped with optional float kit

File:PiperJ3P.jpg

;J3P

:Variant powered by a {{convert|50|hp|kW|0|abbr=on}} Lenape LM-3-50 or Lenape AR-3-160 three-cylinder radial engine{{cite web|url = http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/ae0aecbca42009eb862572c9006edb1b/$FILE/ATTYNRM6/TC695.pdf|title = Approved Type Certificate 695|access-date = 2010-02-18|last = Federal Aviation Administration|date = October 1942|archive-date = July 14, 2010|archive-url = https://web.archive.org/web/20100714023026/http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/ae0aecbca42009eb862572c9006edb1b/$FILE/ATTYNRM6/TC695.pdf|url-status = dead}}

;J-3R

:Variant with slotted flaps powered by a {{convert|65|hp|kW|0|abbr=on}} Lenape LM-3-65 engine.

;J-3X

:1944 variant with cantilever wing powered by a {{convert|65|hp|kW|0|abbr=on}} Continental A-65-8 engine.

;L-4B Prospector

:Canadian manufactured model, with removable rear seat and control, additional capacity, optional extra fuel tank and painted in a PA-12 color scheme.{{cite web |last1=Price |first1=Cameron |title=Cub Aircraft History |url=https://torontoaviationhistory.com/cub-aircraft-history |website=Toronto Aviation History |access-date=19 March 2022 |archive-date=January 22, 2022 |archive-url=https://web.archive.org/web/20220122153936/https://torontoaviationhistory.com/cub-aircraft-history/ |url-status=dead }}

;Cammandre 1

:A French conversion of J-3 Cub/L-4 aircraft{{cite web|url =http://www.abpic.co.uk/search.php?q=Camandre%201%20(Cub%20conversion)&u=type|title = Cammandre 1|access-date = 2011-02-07}}

;Poullin J.5A:Five L-4 Cubs converted by Jean Poullin for specialist tasks.{{cite book|last=Gaillard|first=Pierre|title=Les Avions Francais de 1944 a 1964|year=1990|publisher=Editions EPA|language=fr|location=Paris|isbn=2-85120-350-9}}

;Poullin J.5B:A single L-4 Cub converted by Jean Poullin for specialist tasks

;Wagner Twin Cub:A twin fuselage conversion of the J-3{{Cite web |title=TwinNavion.com |url=https://www.twinnavion.com/oddballs.htm |access-date=2022-05-22 |website=www.twinnavion.com}}

File:Piper TG-8 3-view line drawing.png

;YO-59

: Four US Army Air Corps test and evaluation J3C-65

;O-59

: Production version for the USAAC; 140 built later redesignated L-4

;O-59A

: Improved version, powered by a 65-hp (48-kW) Continental O-170-3 piston engine; 948 built, later redesignated L-4A

;L-4

: Redesignated YO-59 and O-59

;L-4A

: Redesignated O-59A.

;L-4B

: As per L-4A, but without radio equipment; 980 built

;L-4C

: Eight impressed J3L-65s, first two originally designated UC-83A

File:Piper_TG-8A_Glider.jpg

;L-4D

: Five impressed J3F-65s

;L-4H

: As per L-4B but with improved equipment and fixed-pitch propeller, 1801 built

;L-4J

: L-4H with controllable-pitch propeller, 1680 built

;UC-83A

: Two impressed J3L-65s, later redesignated L-4C

File:PiperNE-1.jpg

;TG-8

: Three-seat training glider variant, 250 built

;XLNP-1

: United States Navy designation for three experimental TG-8s received

;NE-1

: United States Navy designation for dual-control version of J3C-65, 230 built

;NE-2

: As per NE-1 with minor equipment changes, 20 built

;B.S.3

:({{langx|th|บ.ส.๓}}) Royal Thai Armed Forces designation for the L-4H and L-4J.{{Cite web |title=Thai Military Aircraft Designations |url=https://designation-systems.net/non-us/thailand.html |access-date=2025-03-20 |website=designation-systems.net}}

File:PiperCub-75th.jpg 2012]]

The aircraft has been popular with flying schools — especially from the pre-World War II existence of the Civilian Pilot Training Program using them in the United States — and remains so with private individuals, into the 21st century.

File:L-4J-Piper-Cub.jpg]]

;{{flag|Dutch East Indies}}

• Royal Netherlands East Indies Army Air Force{{cite web | url = http://nei.adf-serials.com/indonesian-aviation-1945-50.pdf | archive-url = https://web.archive.org/web/20051214192414/http://nei.adf-serials.com/indonesian-aviation-1945-50.pdf | archive-date = 2005-12-14 | date = November 2005 | ref = JH05 | title = Indonesian aviation 1945-1950 | work = adf-serials.com | first = Jos | last = Heyman | page = 18 }}

;{{IDN}}

• Indonesian Air ForceHeyman (2005), pp. 19, 22.

;{{ROK}}

• Republic of Korea Air Force: Received 10 L-4s from the Army to create the Air Force on 1 October 1949. 8 L-4s were operational at the beginning of the Korean War. Lost 25 vehicles during the war.Triggs, James M.: The Piper Cub Story, pages 13–19. The Sports Car Press, 1963. SBN 87112-006-2

;{{PAR}}

• Military of Paraguay - L-4Krivinyi, Nikolaus: World Military Aviation, page 181. Arco Publishing Company, 1977. {{ISBN|0-668-04348-2}}

;{{flag|Thailand}}

• Royal Thai Navy{{citation|url=http://www.worldairforces.com/countries/thailand/thl.html|title=World Air Forces – Historical Listings Thailand (THL)|access-date=30 August 2012|url-status=dead|archive-url=https://web.archive.org/web/20120125054737/http://www.worldairforces.com/Countries/thailand/thl.html|archive-date=25 January 2012}}

;{{UK}}

• Royal Air Force

;{{USA}}

• United States Air Force
• United States Army
• United States Army Air Forces
• United States Navy
• Civil Air Patrol

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| alt1 = 3-view line drawing of the Piper J3C Cub

| caption1 = 3-view line drawing of the Piper J3C Cub

| image2 = Piper L-4B Grasshopper 3-view line drawing.png

| alt2 = 3-view line drawing of the Piper L-4B Grasshopper

| caption2 = 3-view line drawing of the Piper L-4B Grasshopper

}}

{{Aircraft specs

|ref = The Piper Cub StoryTriggs, James M.: The Piper Cub Story, page 31. The Sports Car Press, 1963. SBN 87112-006-2

|prime units? = kts

|crew = one pilot

|capacity = one passenger

• Useful load: 455 lb (205 kg)

|length m = 6.83

|length ft = 22

|length in = 5

|span m = 10.74

|span ft = 35

|span in = 3

|height m = 2.03

|height ft = 6

|height in = 8

|wing area sqm = 16.58

|wing area sqft = 178.5

|aspect ratio =

|airfoil =

|empty weight kg = 345

|empty weight lb = 765

|gross weight kg =

|gross weight lb =

|max takeoff weight kg = 550

|max takeoff weight lb = 1220

|more general =

|eng1 number = 1

|eng1 name = Continental A-65-8

|eng1 type = air-cooled horizontally opposed four cylinder

|eng1 kw = 48

|eng1 hp = 65

|eng1 shp =

|eng1 kn =

|eng1 lbf =

|power original =

|thrust original =

|eng1 kn-ab =

|eng1 lbf-ab =

|more power =  at 2,350 rpm

|prop name =

|prop dia m =

|prop dia ft =

|prop dia in =

|rot dia m =

|rot dia ft =

|rot dia in =

|rot area sqm =

|rot area sqft =

|rot number =

|max speed kmh = 140

|max speed mph = 87

|max speed kts = 76

|max speed note =

|max speed mach =

|cruise speed kmh = 121

|cruise speed mph = 75

|cruise speed kts = 65

|cruise speed note =

|stall speed kmh = 61

|stall speed mph = 38

|stall speed kts = 33

|stall speed note =

|never exceed speed kmh =

|never exceed speed mph =

|never exceed speed kts =

|range km = 354

|range miles = 220

|range nmi = 191

|range note =

|combat range km =

|combat range miles =

|combat range nmi =

|combat range note =

|ferry range km =

|ferry range miles =

|ferry range nmi =

|ferry range note =

|endurance =

|ceiling m = 3500

|ceiling ft = 11500

|ceiling note =

|climb rate ms = 2.3

|climb rate ftmin = 450

|climb rate note =

|sink rate ms =

|sink rate ftmin =

|sink rate note =

|wing loading kg/m2 = 33.4

|wing loading lb/sqft = 6.84

|disk loading kg/m2 =

|disk loading lb/sqft =

|power/mass = 18.75 lb/hp (11.35 kg/kW)

|thrust/weight =

|more performance =

|guns =

|bombs =

|rockets =

|missiles =

|hardpoints =

|hardpoint capacity =

|hardpoint rockets =

|hardpoint missiles =

|hardpoint bombs =

|hardpoint other =

|avionics =

}}

{{Portal|Aviation}}

{{aircontent|

|related=

• American Legend AL3C-100
• CubCrafters CC11-100 Sport Cub S2
• LIPNUR Belalang
• Marawing 1-L Malamut
• Piper J-2
• Piper PA-15 Vagabond
• Piper PA-16 Clipper
• Piper PA-18 Super Cub
• Piper PA-20 Pacer
• Wag-Aero CUBy

|similar aircraft=

• Aeronca Champion
• Aeronca L-3
• American Eagle Eaglet
• Fieseler Fi 156 Storch
• Kitfox Model 5
• Taylorcraft BC-65
• Taylorcraft L-2

|lists=

• List of aircraft of World War II
• List of most-produced aircraft

|see also=

}}

{{Reflist|refs=

Andrade 1979, p. 81

Andrade 1979, p. 129

Andrade 1979, p. 140

Andrade 1979, p. 170

Andrade 1979, p. 201

Andrade 1979, p. 239

Peperell 1987, pp. 22–34

}}

• {{cite book |last=Andrade |first=John |title=U.S. Military Aircraft Designations and Serials since 1909 |year=1979 |publisher=Midland Counties Publications |isbn=0-904597-22-9}}
• {{cite book|author=Bowers, Peter M.|title=Piper Cubs|publisher=McGraw Hill|year=1993|isbn=0-8306-2170-9}}
• {{cite book |last=Peperell |first=Roger W |author2=Smith, Colin M | title= Piper Aircraft and their Forerunners | year=1987 |publisher=Air-Britain | location=Tonbridge, Kent, England | isbn=0-85130-149-5}}
• {{cite book|last=Gaillard|first=Pierre|title=Les Avions Francais de 1944 a 1964|year=1990|publisher=Editions EPA|language=fr|location=Paris|isbn=2-85120-350-9}}
• {{cite journal |last1=Neto|first1=Ricardo Bonalume|title='Ugly Ducklings' and the 'Forgotten Division': Brazilian Piper L-4s in Italy, 1944–1945, Part One |journal=Air Enthusiast |date=March–April 1999 |issue=80 |pages=36–40 |issn=0143-5450}}
• {{cite journal |last1=Neto|first1=Ricardo Bonalume|title='Ugly Ducklings' and the 'Forgotten Division': Brazilian Piper L-4s in Italy, 1944–1945, Part Two |journal=Air Enthusiast |date=May–June 1999 |issue=81 |pages=73–77 |issn=0143-5450}}
• {{cite journal|title=Pentagon Over the Islands: The Thirty-Year History of Indonesian Military Aviation|journal=Air Enthusiast Quarterly |date=n.d. |issue=2 |pages=154–162 |issn=0143-5450}}

{{commons category|Piper J-3 Cub}}

• [https://web.archive.org/web/20070429215643/http://www.fiddlersgreen.net/AC/aircraft/Piper-Cub/j3cub_info/j3_info.htm Fiddler's Green] - history of the J-3
• [http://www.piper.com/history/ Piper Aircraft, Inc. - History] - Brief timeline of the history of Piper Aircraft, starting with the Piper Cub
• [http://www.sentimentaljourneyfly-in.com/ Sentimental Journey] - Annual fly-in of Piper Cubs held in Lock Haven, Pennsylvania

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|list1=

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}}

Category:High-wing aircraft

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Cub, J-3

Category:1930s United States civil utility aircraft

Category:1940s United States military utility aircraft

Category:Aircraft first flown in 1938

Category:Aircraft with fixed conventional landing gear

Category:Single-engined piston aircraft