when i buy a simulator control-6 or 7 channel for learning , can it be used for flying planes later
welcome nagarajan
you can get a pure simulator box like this one (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=20951)
(http://www.hobbyking.com/hobbyking/store/catalog/20951.jpg)
or buy a transmitter and a dongle(USB) like this one (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=13597), use the transmitter (Like this) (http://www.hobbyking.com/hobbyking/store/__9042__Hobby_King_2_4Ghz_6Ch_Tx_Rx_V2_Mode_2_.html)to fly the model virtually using the dongle or in real using the receiver supplied with a transmitter like the one shown below
they both visually may look the same, however pure trainer box does not have a transmitting module and a it doesn't come with a receiver for obvious reasons
Transmitter
(http://www.hobbyking.com/hobbyking/store/catalog/HK-T6XV2-M1(2).jpg)
receiver
(http://www.hobbyking.com/hobbyking/store/catalog/HK-T6XV2-M1-1(2).jpg)
usb dongle
(http://www.hobbyking.com/hobbyking/store/catalog/XTR01.jpg)