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(2) Old Unused Apco Gas Station Advertising Premium Flying Wing Glider Airplane Models
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(2) Old Unused Apco Gas Station Advertising Premium Flying Wing Glider Airplane Models
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The picture shows a view of the (2) Old Unused Apco Gas Station Advertising Premium Flying Wing Glider Airplane Models in this lot. The front of one and the back of the other are shown. The two are identical. These are printed in red and blue on white card stock paper. The two aircraft are die cut and have not been punched out. On the front and back the advertise for Apco Petroleum Products. These were most likely handed out as a premium at a gas station when refueling. They are not dated but they are believed to be from the 1940s and they were based on the Northrop Flying Wing Aircraft.

The instructions are printed on the planes and card. The cards state that the ''APCO FLYING WING ROARS LIKE A REAL JET''. To judge the sizes the cards that these are on measure about 8-3/8'' x 5-1/16''. They are both in mint unused condition as pictured. Below here, for reference is some information about the Flying Wing aircraft:

Flying wing
From Wikipedia, the free encyclopedia

Flying wing

A flying wing is a fixed wing aircraft which has no definite fuselage, with most of the crew, payload and equipment being housed inside the main wing structure. A flying wing may have various small protuberances such as pods, nacelles, blisters, booms, vertical stabilisers (tail fins), or undercarriage. Some aircraft have no fuselage but do have a separate horizontal stabiliser surface mounted on one or more booms; these are also commonly referred to as flying wings, although this is not strictly correct. An example of such a design is the Northrop X216H.

Theoretically the flying wing is the most efficient aircraft configuration from the point of view of aerodynamics and structural weight. It is argued that the absence of any aircraft components other than the wing should naturally provide these benefits. However in practice an aircraft's wing must provide for flight stability and control; this imposes additional constraints on the aircraft design problem. Therefore, the expected gains in weight and drag reduction may be partially or wholly negated due to design compromises needed to provide stability and control. Alternatively, and more commonly, a flying wing type may suffer from stability and control problems.


Tailless aircraft have been experimented with since Man's earliest attempts to fly. But it was not until the deep chord monoplane wing became practicable after World War I that the opportunity to discard any form of fuselage arose and the true flying wing could be realized.

Hugo Junkers patented a wing only air transport concept in 1910. He saw it as a natural solution to the problem of building an airliner large enough to carry a reasonable passenger load and enough fuel to cross the Atlantic in regular service. He believed that flying wing's potentially large internal volume and low drag made it ''a natural'' for this role, In 1919 he started work on his ''Giant'' JG1 design, intended to seat passengers within thick wings, but two years later the Allied Aeronautical Commission of Control ordered the incomplete JG1 destroyed for exceeding post war size limits on German aircraft. Junkers conceived futuristic flying wings for up to 1,000 passengers; the nearest this came to realization was in the 1931 Junkers G-38 34-seater Grossflugzeug airliner which featured a large thick chord wing providing space for fuel, engines and two passenger cabins. However it still required a short fuselage ending in a double tail, and containing the crew and additional passengers.

The flying wing configuration was studied extensively in the 1930s and 1940s, notably by Jack Northrop and Cheston L. Eshelman in the United States, and Alexander Lippisch and the Horten brothers in Germany. Early examples of true flying wings include:

The German Horten H1 glider flown with partial success in 1933, and the subsequent H2 flown successfully in both glider and powered variants.

The American Freel Flying Wing glider flown in 1937.

The American Northrop N-1M of 1940.

The British Baynes Bat glider of 1943.

Several late war German military designs were based on the flying wing concept (or variations of it) as a proposed solution to extend the range of the otherwise very short range jet engined aircraft. Most famous of these would be the Horten Ho 229 fighter. This aircraft, first flown in 1944, combined a flying wing, or NurflŸgel, design with twin jet engines. The surviving prototype remains in storage with the Smithsonian Institute in an unrestored state.

After the war, a number of experimental designs were based on the flying wing concept, but the known difficulties remained intractable. Some general interest continued until the early 1950s, when the concept was proposed as a design solution for long range bombers. Such trends culminated in the Northrop YB-35 and YB-49, which did not enter production. Those designs did not necessarily offer a great advantage in range and presented a number of technical problems, leading to the adoption of ''conventional'' solutions like the Convair B-36 and the B-52 Stratofortress.

Interest in flying wings was renewed in the 1980s due to their potentially low radar reflection cross sections. Stealth technology relies on shapes which only reflect radar waves in certain directions, thus making the aircraft hard to detect unless the radar receiver is at a specific position relative to the aircraft, a position that changes continuously as the aircraft moves. This approach eventually led to the Northrop B-2 Spirit stealth bomber. In this case the aerodynamic advantages of the flying wing are not the primary needs. However, modern computer controlled fly by wire systems allowed for many of the aerodynamic drawbacks of the flying wing to be minimized, making for an efficient and stable long range bomber.

Due to the practical need for a deep wing, the flying wing concept is most practical for designs in the slow to medium speed range, and there has been continual interest in using it as a tactical airlifter design. Boeing continues to work on paper projects for a Blended Wing Body Lockheed C-130 Hercules sized transport with better range and about 1/3rd more load, while maintaining the same size characteristics. A number of companies, including Boeing, McDonnell Douglas and de Havilland did considerable design work on flying wing airliners, but to date none have entered production.

Design issues

A clean flying wing is theoretically the most aerodynamically efficient (lowest drag) design configuration for a fixed wing aircraft. It also offers high structural efficiency for a given wing depth, leading to light weight and high fuel efficiency. Because it lacks conventional stabilising surfaces or the associated control surfaces, in its purest form the flying wing suffers from two inherent disadvantages, being inherently unstable and difficult to control. The inevitable compromises are difficult to achieve and can reduce or even negate the expected reductions in weight and drag. Alternatively, the final design may still be too unsafe for certain uses such as commercial aviation.

Further difficulties arise from the problem of fitting the pilot, engines, flight equipment and payload within the depth of the wing section. If the wing is made deep enough, then the frontal area increases and can result in higher drag and slower speed than a conventional design. If the wing is kept reasonably thin, then the aircraft must be fitted with an assortment of blisters, pods, nacelles, fins and so forth to accommodate all the needs of a practical aircraft, and this is usually the solution adopted.

Directional stability
For any aircraft to fly without constant correction it must have directional stability in yaw. Flying wings lack the long fuselage which provides a convenient attachment point for an efficient vertical stabiliser or tail fin. The fin must attach directly on to the rear part of the wing, giving a small moment arm from the aerodynamic center, which in turn means that to be effective the fin area must be large. This has weight and drag penalties, and can negate the advantages of the flying wing. The problem can be minimized by increasing the leading edge sweepback, as for example in a low aspect ratio delta wing, but most flying wings have gentler sweepback and consequently at best marginal stability. In the so called ruptured duck configuration, the wing tip sections are angled sharply downwards (anhedral), increasing the area at the rear of the aircraft when viewed from the side.

Yaw Control
In most flying wing designs, the stabilising fins are so far forward that any control rudders mounted on them have little effect. Alternative means for yaw control must be provided. The only practical solution is differential drag: the drag near one wing tip is artificially increased, causing the aircraft to yaw in the direction of that wing. Typical solutions include:

Split ailerons. The top surface moves up while the lower surface moves down, to create an air brake effect.

Spoiler. A spoiler surface in the upper wing skin is raised, to disrupt the airflow and increase drag. This effect is generally accompanied by a loss of lift, which must be compensated for either by the pilot or by complex design features.

Spoileron. An upper surface spoiler which also acts to reduce lift (equivalent to deflecting an aileron upwards), so causing the aircraft to bank in the direction of the turn, the angle of roll causes the wing lift to act in the direction of turn, reducing the amount of drag required to turn the aircraft's longitudinal axis.

A consequence of the differential drag method is that if the aircraft manoeuvers frequently then it will frequently create drag. So flying wings are at their best when cruising in still air: in turbulent air or when changing course, the aircraft may be less efficient than a conventional design.

Borderline cases
Some aircraft have no fuselage but do have a horizontal stabilizer mounted on one or more booms. Strictly, these are not flying wings although they are usually referred to as such. An example is the Northrop X-216H, which has a tail stabilizer mounted on two tail booms but is regarded as Northrop's first flying wing type.

Many hang gliders and microlight aircraft are tailless. Although often referred to as flying wings, these types carry the pilot (and engine where fitted) below the wing structure rather than inside it, and so are not true flying wings. An aircraft of sharply swept delta planform and deep centre section represents a borderline case between flying wing, blended wing body and/or lifting body configurations.

Click on image to zoom.
(2) Old Unused Apco Gas Station Advertising Premium Flying Wing Glider Airplane Models

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