Vehicle, unmanned aerial

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OBJECT TYPE
prototype/working/1:8 scale
DATE
1987
ARTIFACT NUMBER
2014.0306.001
MANUFACTURER
University of Toronto, Institute for Aerospace Studies (UTIAS)
MODEL
SHARP
LOCATION
Downsview, Ontario, Canada

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
7
AKA
Fuselage and propeller; UAV
Patents
N/A
General Description
Balsa wood frame and wood prop, with a synthetic covering and metal mechanical components.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length
139.4 cm
Width
68.4 cm
Height
55.0 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Models
Sub-Category
N/A

Manufacturer

AKA
University
Country
Canada
State/Province
Ontario
City
Downsview

Context

Country
Canada
State/Province
Ontario
Period
September-October, 1987
Canada
Unknown
Function
To serve as a 1:8 scale flying model of a microwave-powered communications relay station for wireless (narrowband and wideband) telecommunications and broadcasting services (From Acquisition Proposal, see Ref. 1)
Technical
While it is true that the thin-film etched- or printed-circuit rectenna was not a Canadian invention, the fact is that Canadian researchers developed and patented improved and innovative designs of rectennas that were well adapted to the SHARP. The CRC’s unique rectenna design included two critically spaced layers of rectennas arranged at right angle to each other. This configuration maximised the amount of power collected by the SHARP, without having to turn the antenna array on the ground to keep it aligned with the model’s rectennas. The very design of the SHARP proved to be quite a challenge. The vehicle had to be as aerody-namically efficient as possible, which meant a long and slender wing. On the other hand, it also had to catch as much microwave radiation as possible, which meant a large collecting area. As was written above, the engineers developed and patented a highly innovative concept that combined a slender fuselage with a pylon-mounted wing and a large circular rectenna array to collect the microwaves. More rectennas of the type patented by the CRC were mounted underneath the wing and fuselage. This configuration offered the best achievable compromise between maximum aerodynamic efficiency and minimum variation in microwave beam power density. Some patents were issued as a result of the work done on the SHARP project (see References tab). Some Master’s Theses were also written by University of Toronto students as a result of this work. As of 2013, the SHARP project was the most advanced microwave-powered airplane project anywhere in the world. (From Acquisition Proposal, see Ref. 1)
Area Notes
Unknown

Details

Markings
Printed on the proper left and right sides of the fuselage: "SHARP"
Missing
Appears complete
Finish
Model is predominantly white with red accents and a red proper bottom. The propeller is grey with red tips. Inside, the frame is made of a light-coloured wood and there are wires with red, black and white coverings and black and blue connector ends. The bottom is covered in a network of copper coloured strips and wires covered with a translucent, slightly yellow synthetic film.
Decoration
The proper left and proper right of the pylon on which the wings are mounted are decorated with a Canadian flag.

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

University of Toronto, Institute for Aerospace Studies (UTIAS), Vehicle, unmanned aerial, circa 1987, Artifact no. 2014.0306, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2014.0306.001/

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