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Electric RC Airplanes
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Click on the picture to hear the wav sound.
NOTE: RADIO CONTROL AIRPLANES ARE ON THE BOTTOM HALF OF THE PAGE.
Overview:
One Evergreen/Boeing 747 Supertanker equals seven conventional air tankers. The 747 Supertanker's range allows it to make a number of drops as necessary during a single air mission. It has the capability of high pressure retardant drops for immediate suppression, or to drop retardant like a falling rain to stop the spread of a blaze. Modern systems like Ground Position System instrumentation and high resolution radar can enable the Supertanker to be used in night operations. With a cruise speed of 550 mph the Supertanker will engage problem areas much more quickly than would be possible with conventional air tankers.
Supertanker:
Evergreen has developed what it considers the next generation of air tanker. The capacity to drop the equivalent of the capacities of seven conventional air tankers together with the latest in innovations for safety, make the Evergreen Supertanker truly unique.
The Evergreen/Boeing Supertanker program has involved over fifty professional scientists and engineers. Over 20,000 man hours have been put into making the 747 Supertanker the most safe and efficient air tanker ever produced. The dynamic mission response capability of the aircraft enable it to respond to urgent duties not only in the United States, but around the world.
The 747 Supertanker has received all of its certifications and a contract has been signed with the U. S. Forest Service.
Features and Innovations:
The 747 Supertanker concept is the overall reduction in costs due to the capability of massive intervention with the least amount of flight hours. This is accomplished through:
At least seven times foam and water capacity of typical air tankers.
The ability to cruise further and stay on mission longer than conventional aircraft.
The ability of use multiple drop patterns during a single mission against a number of targets.
Forward Looking Infrared and GPS features.
Continuous alert status without stand-down during the busiest seasons.
Mach .86 cruise to get to the mission area more quickly.
A power-to-weight ratio, when fully loaded, ex- ceeding that of other air tankers, adding to safety and performance.
A unique pressurized drop system enables the 747 Evergreen Supertanker to deliver water and foam from higher altitudes while maintaining coverage and efficiency, yet another safety feature.
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Specifications |
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Primary Function:
Crew:
Engines/Thrust:
Length:
Wingspan:
Weight Empty:
Max. Weight:
Tank Capacity:
Cruise Speed:
Drop Speed:
Drop Altitude:
Climb Rate:
Ceiling:
Range:
First Flight:
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air tanker
three
4- 50,100 lbs. ea.
231' 10"
195' 8"
358,000 lbs.
735,100 lbs.
24,000 gals.
550 mph
160 mph
400 - 800 feet
2,500 fpm
38,000 feet
4,800 miles
3/21/04 |
Radio Control Airplane
RC Airplane built by Art Neuenschwander.
Radio Control Airplanes:
Pictured above and immediately below is the scratch built 747 RC airplane by Art Neuenschwander. Art's radio control airplane is built from styrofoam, has a wing span of 120" and weighs 37 lbs. The RC airplane is powered by two OS 91 ducted fan engines.
Estes has a 747 radio control airplane. The Estes RC Airplane is of EPP foam construction, with a 43" wing span. The 747 radio control airplane is powered by four electric ducted fan engines.
Control of the RC airplane is from two channels which give differential thrust to the motors. As supplied, the radio control airplane can turn, but altitude is controlled by power to the engines, not an elevator. The Estes RC Airplane doesn't have ailerons or a rudder, either.
With all its shortcomings, we have read that the motors of the 747 radio control airplane have more than adequate power. With that in mind, several people have modified the RC airplane for rudder, elevator and throttle controls. It is said to be an easy conversion.
If you have a favorite Boeing 747 radio control airplane, or if you know of plans, a ARF, or kit 747 RC Airplane, please email us about your experiences.
Radio Control Airplane
Art Neuenschwander and his RC Airplane.
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