Radio-controlled helicopter (English Wikipedia)

Iszech, Pavel (20 January 2010). "RC Helicopters Archieven". DroneVinder (in Dutch). Archived from the original on 3 January 2017. Retrieved 2 January 2017.

epson.co.jp

"Operating R/C Radio Controls". Archived from the original on 7 August 2012. Retrieved 28 October 2014.

"How Remote Controls Work". HowStuffWorks. 10 November 2005. Retrieved 25 August 2022.

James, Michael. "Frequencies for RC Cars". LiveAbout. Retrieved 25 August 2022.

J. David Goodman (September 5, 2013). "Remote-Controlled Model Helicopter Fatally Strikes Its Operator". New York Times. Retrieved 2013-12-05.

"Warning: FAA Says US Airspace Is Closed To ALL Commercial". Photography For Real Estate. 2012-01-24. Retrieved 2013-12-05.

"RC Helicopter Transmitter Modes". www.rc-airplane-world.com. Retrieved 25 August 2022.

Everett Balmores (2013-07-11). "Tragic news from Switzerland involving a model helicopter". RC Heli Resource. Retrieved 2013-12-05.

"Buyers Guide". Intermediate/Advanced Outdoor Models. RCMods. Archived from the original on 9 July 2013. Retrieved 29 May 2013.

"Operating R/C Radio Controls". Archived from the original on 7 August 2012. Retrieved 28 October 2014.
"Buyers Guide". Intermediate/Advanced Outdoor Models. RCMods. Archived from the original on 9 July 2013. Retrieved 29 May 2013.
Iszech, Pavel (20 January 2010). "RC Helicopters Archieven". DroneVinder (in Dutch). Archived from the original on 3 January 2017. Retrieved 2 January 2017.
"Air Hogs - The Leader in Remote Control Vehicles". 15 January 2013. Archived from the original on 2013-01-15.
C.Hatch (2013-10-13). "Safety Precautions With Remote Control Toys". WhizToy. Archived from the original on 2013-11-09. Retrieved 2013-12-07.

C.Hatch (2013-10-13). "Safety Precautions With Remote Control Toys". WhizToy. Archived from the original on 2013-11-09. Retrieved 2013-12-07.