Multiplex FOX FPV Twin Boom Pusher
Aircraft: 2 x MPX FOX gliders
Reinforcement: 6x1mm CFK in wing, 3x1mm CFK + balsa in elevator, 3x1mm in fusalage
Dimensions: 700mm wingspan, 500mm lenght, ca 220 gramm
Motor: Dualsky XM2812CA-27
Prop: 7 x 3.8
ESC: Roxxy BL-Control 710
Batt: 2S 800mAh
Servos: 3 x 5g
RC RX: Rex 5 Channel 40mhz
Cam: RC-TECH TX41
TX: Included in CAM, 2.4ghz, 10mw
Antenna: sort of very simpel dipol, not sure though
RX: Fatshark with Dipol 5dbi and homemade Cloverleaf
It flies very nice. I didnt expect that with the weight of over 200gramms. I m sorry that I dont have a video. I m working on that
I got a problem with the reception of the FPV though. The camera has an attached small 2.4ghz 10mw transmitter with a simpel wire antenna. I did the first FPV flight with my Fatshark RX and a 5dbi rubber ducky or dipol antenna. The reception was very bad in the turns and also 50 meters away. I was flying in a living area in a park. Probably alot of wireless stuff around.
I did made a cloverleaf antenna for the second flight (thanks for the manual IBcrazy) and the reception got better... with better I mean still a lot of strips in the picture, but enough room between the strips to see where I m flying to. There are also strips when both antenna are straight and more than 15 meters away from each other.
The plan is to replace the simpel wire antenna on the TX with a Vee, helix or cloverleaf. But I m not sure about the attachement of the ground/reflector. I will post some pics on the next post.
A other issue I have and I would like to discusse with you is the trailing edge of the wing and rudder. On the MPX FOX they are really big for a TE. The reson why they are that big could be that they are less critical on damages or because to introduce some drag to prevent it to get to fast. Because the MPX FOX is a non rc glider and is made for throwing around.
The big question is now: should I trimm them to get a nice smooth airflow. Or shold I leave it, because it flies okey. But will it fly even better with trimmed TE? I know, its not a big deal, but I m intrested in your opinion.