- Aircraft History, Specification and Information -
Republic RC-3 Seabee
Republic RC-3 SeaBee Amphibian - N6239K
1947 Republic RC-3 SeaBee Amphibian
N6239K (sn 442)
Photo taken Jul. 2009 @ Lake Chelan Airport, WA - USA (S10)
Photo © Marcel Siegenthaler

The Republic RC-3 Seabee is an all-metal amphibious sports aircraft designed by Percival Spencer and manufactured by the Republic Aircraft Corporation.

Republic RC-3 Seabee N6483K
1947 Republic RC-3 SeaBee
N6483K (sn 727)
Photo taken Sep. 2009
Mead Airfield, WA - USA (70S)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 SeaBee Amphibian Aircraft C-GIDE
1947 Republic RC-3 SeaBee
C-GIDE (SN 355)
Owner: Pacific Eagle Aviation Ltd.
Photo taken at Arlington Northwest EAA Fly-In 2007
Arlington, WA USA (KAWO)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 SeaBee Seaplane N12CX
1947 Republic RC-3 SeaBee
N12CX (SN 264)
Photo taken Arlington Northwest EAA Fly-In 2006 at the Splash-In at Goodwin Lake.
Arlington, WA USA (KAWO)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 SeaBee Amphibian N6356K
1947 Republic RC-3 SeaBee
N6356K (SN 585)
Photo taken at Sun 'n Fun 2007
Lakeland Airport, FL USA (KLAL)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 SeaBee Amphibian N6240K
1947 Republic RC-3 SeaBee
N6240K (SN 443)
Photo taken at Sun 'n Fun 2007
Lakeland, FL USA (KLAL)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 SeaBee N6286K
1947 Republic RC-3 Sea Bee
Amphibian Airplane
N6286K (SN 499)
Photo taken at Arlington Northwest EAA Fly-In 2006
Arlington, WA USA (KAWO)
Photo Copyright
Marcel Siegenthaler
Republic SeaBee RC-3 N6759K
1947 Republic RC-3 SeaBee
N6759K (SN 1047)
Photo taken at Arlington Northwest EAA Fly-In 2006
Arlington, WA USA (KAWO)
Photo Copyright
Marcel Siegenthaler
Republic_RC-3_SeaBee_Amphibian_Airplane_N6386K
1947 Republic RC-3 SeaBee
N6386K (SN 615)
Photo taken at Sun 'n Fun 2007
Lakeland, FL USA (KLAL)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 Sea Bee N6590K
1947 Republic RC-3 SeaBee
N6590K (SN 863)
Photo taken at Arlington Northwest EAA Fly-In 2006
Arlington, WA USA (KAWO)
Photo Copyright
Marcel Siegenthaler
Republic_RC-3_SeaBee_Lake_Tahoe_Special_Amphibious_Aircraft_N48VP
1946 Republic RC-3
SeaBee / Lake Tahoe Special
N48VP (SN 172) in U.S. Navy colors.
Photo taken at Arlington Northwest EAA Fly-In 2006
Arlington Airport, WA USA (KAWO)
Photo Copyright
Marcel Siegenthaler
Republic RC-3 Sea Bee Amphibian N283GM
1947 Republic RC-3 SeaBee
N283GM (SN 227)
Photo taken at Sun 'n Fun 2007
Lakeland Airport, FL USA (KLAL)
Photo Copyright
Marcel Siegenthaler

Design and development

The RC-3 Seabee was designed by Percival Hopkins "Spence" Spencer, an aviation pioneer who built his first hang glider in April 1911. At the time he was 17 years old and constructed it from plans he found in a "Popular Mechanics" magazine. On May 15th 1914, Spencer made his first powered flight in a Curtiss Flying Boat. In 1937 he joined Sikorsky engineer Vincent A. Larsen to design their first, and only, amphibious aircraft, the Spencer-Larsen SL-12C. Development of the plane progressed slowly and in September 1940 Spencer left the partnership to form his own company. His resulting design was the Spencer S-12 Air Car Amphibian. Construction of the S-12 began on 1 March 1941 and the small, two seat S-12 prototype, registered NX29098, made its first flight on August 8 1941. The S-12 was a fabric covered amphibian with a unique boxlike forward cabin, a high wing with a two bladed propeller in pusher configuration and a long, slender tail boom.

In December 1941 Spencer put the Air Car into storage and joined the war effort as a test pilot for the Republic Aircraft Corporation. By 1943 he had flight tested 134 of the company's P-47 Thunderbolts.

In April 1943 Spencer left Republic Aircraft to join the Mills Novelty Company of Chicago, Illinois who wanted to use his Air Car to promote their company. Spencer used the company's wood forming equipment to build a new egg-shaped cabin for the Air Car and began demonstrating the aircraft to his former employers, Republic Aircraft. Seeing the potential of the Air Car as the perfect sports plane for pilots returning from the war, Republic purchased the rights to the Air Car in December 1943 and immediately began development of an all-metal version designated the Model RC-1 Thunderbolt Amphibian. On November 30 1944 the first RC-1 Thunderbolt Amphibian, registered NX41816, made its first flight with Spencer at the controls.

The aircraft was displayed in St Louis, Missouri in December and by the end of 1944 Republic had received 1,972 civilian orders for the $3,500 airplane. The aircraft was also demonstrated to the U.S. Navy and Army Air Corps. Both services were impressed with the design and on February 19 1945 the Navy granted Republic Aviation the rights to use the name Seabee for the civilian version. The Army placed a large order for the aircraft, to be used for air-sea rescue operations under the designation OA-15. In September 1945, following VJ Day, both the Army and Navy canceled their orders, which by that time totaled over $20,000,000. The OA-15 Seabee was the last United States Army Air Corps aircraft to use the OA designation, which was dropped when the US Air Force was formed as a separate military branch in 1947.

Military operators included the Israeli Air Force, Paraguayan Navy, the United States Army Air Forces, and South Vietnamese Air Force.

Production
In order to meet the anticipated postwar demand for civilian light aircraft, Republic endeavored to build the Seabee as inexpensively possible, while still retaining reasonable performance and range. A lot of thought went into eliminating what were at the time termed as 'airplane frills,' resulting in a strong product built with as few parts as possible. For example, Seabees as built did not have ribs in the wings; instead, the heavy corrugated aluminum sheet which formed the skin provided the necessary stiffness. Republic was also willing to buy components in volume, which lowered costs further.

On November 22 1945 the prototype RC-3 (NX87451) came off the assembly line at Republic's factory in Farmingdale, New York, and on December 1st made its first flight in Farmingdale with Spencer at the controls.

On December 27 1945 Republic Aviation purchased Aircooled Motors, manufacturers of the Franklin engine, to supply and build engines for the RC-3 Seabee.

In March, 1946 the first production RC-3 Seabee was completed (NC87457, formerly NX87457), and on July 25 1946 the first Seabee (NC87463, production #13) was delivered at the Republic factory to J.G. (Tex) Rankin of Rankin Aviation Industries of Tulare, California.

In the late 1940s aircraft manufacturers hoped that military pilots returning from the war would want to continue flying civilian aircraft for pleasure and sport. This never occurred to the extent the companies imagined, as most wartime pilots returned home never to fly again. As a result many small and optimistic aircraft companies appeared, then quickly disappeared in the immediate postwar years.

On October 4 1947 Republic Aviation Corp. announced that it was discontinuing production of the RC-3 Seabee amphibian for the personal plane market. Republic President Mundy I. Peale stated: "Due to the need of all Republic's production facilities for the manufacture of other types of airplanes, the company has decided to discontinue production of the Seabee". Actually, by summer 1947 the Seabee sales had almost stalled and since June 1947 the production had been put on hold, awaiting further sales. By the end of production a respectable 1,060 Seabees had been built. Though this was far from the 5,000 Seabees per year Republic had hoped to sell, it still represented a significant number of airplanes compared to other struggling aircraft companies of the same era. Only Piper, with their cheap, long-lived Cub and Super Cub, Beech's popular Bonanza, and Cessna's early 140 and 150 light planes would sell in numbers greater than the Seabee. This was due in no small part to the very low price of the Seabee. During production, however, the price of the Seabee would rise from its original $3,500 to $4,495 effective July 15 1946, and to $6,000 on November 15 1946, which was still a remarkable bargain for a four-seat all-metal amphibian aircraft. Republic sold its last new Seabee in 1948. By that time the demand for civilian aircraft had shown itself to be far less than anticipated, and the company turned its attention back to military contracts, developing the successful F-84 Thunderjet, which was built on the same assembly lines formerly used to build the Seabee.

Operational history

Seabees became popular in the USA and Canada and were also well-suited for operation in countries with long coastlines, many islands, many lakes and large areas of wilderness. By the time production ended, 108 Seabees had been exported to several countries and dealerships were established in Brazil, Cuba, Panama, Colombia, Mexico, Uruguay, Peru, Venezuela, Chile, Argentina, Fiji, New Caledona, South Africa, England, Norway and Sweden.

In the late 1940s and throughout the 1950s, the Seabee became one of the most popular bush planes and air ambulances in countries like Canada, Norway, Sweden as well as the USA. Many life-saving missions were flown by Seabee pilots rescuing seriously ill people from remote locations, as well as Seabee pilots making "impossible" takeoffs and landings from small lakes to deliver supplies to hunters and trappers.

In 2006, over 250 Seabees are still registered and flying, a number that is increasing yearly as new aircraft are assembled from parts and wrecks. A few Seabees are still operating commercially as bush planes and air taxis. In the history of aviation few aircraft have had longer, or more successful careers than the Seabee. Interestingly, the Seebee's unusual body also garnered some Hollywood fame when it made a brief but "explosive" appearance in the 1974 James Bond movie, the The Man with the Golden Gun.

Modifications

23 Seabees were converted to a two-engine variant known as the United Consultants Twin Bee with the fitting of two wing-mounted engines driving tractor propellers. The added thrust greatly enhanced the plane's speed, acceleration and capacity.

Modifications to increase the engine size, wingspan, cargo carrying capacity, controls, trim activation, environmental systems, landing light and many others have been available since the early 1970's.

Operators

Argentina
Brazil
Chile
Dominican Republic: Dominican Navy (1951-1952)
France
Israel
India
Mexico
Norway
Paraguay: Paraguayan Navy
South Africa
South Vietnam: Vietnam Air Force
Sweden
United Kingdom
Uruguay

Specifications

General characteristics
Crew: 1 pilot, 3 passengers
Length: 27 ft 10.5 in ()
Wingspan: 37 ft 8 in ()
Height: 10 ft 1 in ()
Wing area: 196 ft² ()
Empty weight: 2,190 lb ()
Loaded weight: 2,810 lb ()
Max takeoff weight: 3,150 lb ()
Powerplant: × 1 Franklin (Aircooled Motors) 6A8-215-B8F or 6A8-215-B9F 6 cylinder horizontally opposed engine, 215 hp at 2,500 rpm () each

Performance
Maximum speed: 148 mph
Range: 520 miles ()
Service ceiling: 12,000 ft ()
Rate of climb: 700 ft/min

Last updated December 21, 2009
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Republic RC-3 Seabee".
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