the idea of helicopters came from 1887.
the idea of helicopters came from 1887.
where did the idea of helicopters come from?
1887
this is a list of unmanned helicopters of the people's republic of china from the main list above, excluding unmanned coaxial helicopters, which are listed separately in their own subcategory. unmanned helicopters consist of a significant portion of chinese uavs and most of these chinese unmanned helicopters are developed as a direct result of an incident in 2007, when japanese government arrested three officials of yamaha motor company in early 2007 for exporting nine yamaha unmanned helicopters to china in 2005, allegedly could be converted to military application from its original crop dusting role. this alleged charge is denied by both yamaha and china, and yahama has claimed that these unmanned helicopters only have a range of only 200 meters, or 656 feet, from the person who is controlling them and are therefore unlikely to be used to carry weapons of mass destruction, but the japanese government nonetheless pressed charges. the action of japanese government triggered a massive chinese response in a nationwide effort to develop domestic chinese unmanned helicopters to replace those imported from japan, including the rapid acceleration of existing unmanned helicopters programs in china. the massive nationwide effort has resulted in more than a hundred domestic chinese unmanned helicopters, most of which are completed by integrating existing commercial off-the-shelf airframes with autopilots and flight control systems. eventually these chinese unmanned helicopters evolved into models with all subsystems such airframe and flight control systems indigenously developed in china.
list of unmanned aerial vehicles of china
the northamerican sportpony registry began in 1997 as a division of the american warmblood registry. there was a major need for a north american counterpart for the warmblood movement taking part in europe. the sudden demand for horses that were strong and physically inclined to excel in sporting events was very great. in 1997 the american warmblood registry opened registrations for ponies, following the european example, enabling breeders to cater to a specific market. in 2003, due to the large volume of ponies registered and seeking registration, the northamerican sportpony registry was reopened as an independent organization. it is now a hub for not only the sport pony community, but the pony community in general.
north american sportpony