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The kicksled or spark is a small sled consisting of a chair mounted on a pair of flexible metal runners that extend backward to about twice the chair's length. The sled is propelled by kicking (sparka or sparke in the Scandinavian languages) the ground by foot. There is a handlebar attached to the top of the chair back.
A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
As of April 2014, over 12,400 sled tests have been performed at the HHSTT. The first sled tests were performed in 1950; the facility has been in continuous operation since. The HHSTT is unusual within the DoD Test and Evaluation community because it has organic management, engineering, fabrication, and test-operation capabilities in one location.
Flexible Flyers are flexible both in design and usage. Riders may sit upright on the sled or lie on their stomachs, allowing the possibility to descend a snowy slope feet-first or head-first. To steer the sled, riders may either push on the wooden cross piece with their hands or feet, or pull on the rope attached to the wooden cross-piece.
The Chukotka Sled Dog (чукотская ездовая) is the aboriginal spitz breed of dog indigenous to the Chukchi people of Russia. Chukotka sled dog teams have been used since prehistoric times to pull sleds in harsh conditions, such as hunting sea mammals on oceanic pack ice. Chukotka sled dogs are most famous as the progenitor of the ...
A toboggan is a simple sled traditionally used by children. It is also a traditional form of transport used by the Innu and Cree of northern Canada.. Illustration of a toboggan ...
In the late 1990s Yamaha removed both short track models from the market and only the 136 inch track was available. Yamaha Bravo was an extremely reliable sled and could go 20,000 or more km trouble free. The short tracked model of the Bravo weighed about 330 lbs and the long track version weighed just over 370 lbs. [3]