Hi folks,
I am building my own T-copter from scratch. I am going to use Arduino as flight controller. Also i am building my own RC tx & rx system using 1km wireless modules! So please help me to select components as per required configuration for a stable flight.
All information till this date about this project is available on my blog. Still work in progress...!
www.pranjalnrobotics. blogspot.in

Pranjal, that's a great blog you got there. Keep up the good work!

The nRF24l01+ modules don't give you anywhere near 1km range even with those antenna, 300m would be a generous bet I think.
Anyway, let me know what range you get out of it.

I use a FS-TH9x RC radio module with Arduino, pretty neat. You can consider the OpenLRS modules for long range flights, later on. Or xBee Pro for bidirectional comm.
HobbyKing's 433MHz telemetry radio is not a bad choice too.

Also, Aliexpress is sort of unreliable and shady descriptions, try not to buy anything expensive on there.
I got burned over 2 deal when the package never reached me and got only about 70% refund.

Good luck!

Basically i am using nRF24L01+PA+LNA that can provide 1.1km range in outdoors.. I am planning to use it on 250kbps data rate & minimum payload size which will provide range of at least 750m..
By the way, Aliexpress is similar to ebay.. Read reviews about seller before placing order & choose seller wisely.. I am tracking all my orders and expecting delivery by 20 may. I am avoiding xbee due to its high cost.. But in future, i may try methods suggested by you.

Thanks..

I am planning to use following stuff for this T-copter :

Emax 25A simon series ESCs (SimonK firmware)
Emax 1200kv or some 900/1000kv motors
2200mAh 3s 25/30c LiPo
8x4 props or similar..
Few bright LEDs For lighting..

The important feature is that I am trying to implement full autopilot using MTK3329 GPS ( laying around in my drawer ) with digital compass. The T-copter will accept location coordinates from android app..
Also I am thinking to add free fall detection so that drone will automatically start up n stabilize if u just throw it away..
Along with this, i am implementing altitude hold feature for sure!!!

Using any Ardino libaries or Arduino FC platforms?

Arduino libraries.. Because i want to understand how the controller works..! Still some time I refer piece of code from Arducopter n aeroquad.. Just to understand how to calculate required values!