marzvt
Junior Member
Hey everyone I am just finishing up the build on my second FPV TEK SUMO. My first one is lost in the wilderness, I miss it...
I live in the mountains so I build for mountain flying. In my mind that means more weight, more power for high wing loading to deal with gusts and wind, and a stability system.
my power setup is:
1400kv 35-30 outrunner
40a Kforce ESC
2X2200mah 3S batteries
My last plane had a 35-36 outrunner which gave it better that 1 to 1 thrust and a top speed in the 80s mph with an 18 to 25 min flight time. I opted for the 35-30 because it was a lot lighter I stuggled to get enough weight forward with my lat model, and it seemed to have a similar output. In practice with test run ups it doesn't seem to have the same power, though it could be do to lost efficiency because I also moved the motor mount further forward.
For control I am using the following:
2X T Pro MG90 metal gear servos.
FY-21AP stability system and autopilot.
Corona RP8D1 72mhz receiver. I had one on these on my last plane and they are awsome! I fly at 9000ft with no hitches at all.)
I use 72mhz for fpv and leave my dx7 for normal planes. 72mhz is awesomely reliable, anyone who is serious about medium to long range fpv should really consider it.
I had a fp-20 on my last plane that I bought on a deal off rcgroups and was blown away at how well it worked. I stepped up the model to add return to home as a fail safe. I fly in conditions that I would never consider without it.
for video I went all ImmersionRC I really like their stuff, it works as advertised without alot of mucking around I have a lawmate setup as well but I have really found ImmersionRC more reliable.
My setup is as follows:
Seawolf 690TVL Pixim Camera 12V
ImmersionRC 2.4ghz 500mw transmitter
ImmersionRC EZOSD (I had a OSD on my last plane which I loved but I was no the best choice for a wing because eveything plugs in vertically so its too thick for a wing, also I wanted Itelemetry for another failsafe.)
I built this plane to be enclosed, protected and streamline. The rc reciever and vidoe transmitter are in each wing tip. I cut into the end up the wings and made it you you could take off the vertical stabilizers with screws to access them. This worked out much better than I hoped.
The EZOSD power sensor also doubles as a great power conditioner. The only thing that isn't sorted out is the power for the camera. Right now I have it powered directly off the battery because the step up I use is on backorder. When I get that I will be able to fit the power in the center so when I add a flap it will be completely streamline.
I used twisted wires on everything. To bring the controls from the tip of the wing where the receive, is to the center I used a section of parallel cable. These are awsome because they are completely shielded and compact for how many lines it has. I built out all 9 channels so i can ad other functionality in the future without building a whole new line.
I kept power and control on one wing and video on the other so everything id separated and balanced. Also the power and video lines are separated on the video wing. this is one think I don't agree with for the ImmersionRC stuff they use this 5 plug ribbon cable that has the power right next to the video. I break it our into two twisted wires do the video and power can take separate paths.
I built a holder for the camera so it can me removable if I want to replace it with a gopro.
2200 mah batteries are big for the frame so to make them flush I cut completely through and reinforce the whole plane with a sheet of EPP foam. This makes it good, tough and ridged.
Love to hear comments and suggestions. pics are below.
I live in the mountains so I build for mountain flying. In my mind that means more weight, more power for high wing loading to deal with gusts and wind, and a stability system.
my power setup is:
1400kv 35-30 outrunner
40a Kforce ESC
2X2200mah 3S batteries
My last plane had a 35-36 outrunner which gave it better that 1 to 1 thrust and a top speed in the 80s mph with an 18 to 25 min flight time. I opted for the 35-30 because it was a lot lighter I stuggled to get enough weight forward with my lat model, and it seemed to have a similar output. In practice with test run ups it doesn't seem to have the same power, though it could be do to lost efficiency because I also moved the motor mount further forward.
For control I am using the following:
2X T Pro MG90 metal gear servos.
FY-21AP stability system and autopilot.
Corona RP8D1 72mhz receiver. I had one on these on my last plane and they are awsome! I fly at 9000ft with no hitches at all.)
I use 72mhz for fpv and leave my dx7 for normal planes. 72mhz is awesomely reliable, anyone who is serious about medium to long range fpv should really consider it.
I had a fp-20 on my last plane that I bought on a deal off rcgroups and was blown away at how well it worked. I stepped up the model to add return to home as a fail safe. I fly in conditions that I would never consider without it.
for video I went all ImmersionRC I really like their stuff, it works as advertised without alot of mucking around I have a lawmate setup as well but I have really found ImmersionRC more reliable.
My setup is as follows:
Seawolf 690TVL Pixim Camera 12V
ImmersionRC 2.4ghz 500mw transmitter
ImmersionRC EZOSD (I had a OSD on my last plane which I loved but I was no the best choice for a wing because eveything plugs in vertically so its too thick for a wing, also I wanted Itelemetry for another failsafe.)
I built this plane to be enclosed, protected and streamline. The rc reciever and vidoe transmitter are in each wing tip. I cut into the end up the wings and made it you you could take off the vertical stabilizers with screws to access them. This worked out much better than I hoped.
The EZOSD power sensor also doubles as a great power conditioner. The only thing that isn't sorted out is the power for the camera. Right now I have it powered directly off the battery because the step up I use is on backorder. When I get that I will be able to fit the power in the center so when I add a flap it will be completely streamline.
I used twisted wires on everything. To bring the controls from the tip of the wing where the receive, is to the center I used a section of parallel cable. These are awsome because they are completely shielded and compact for how many lines it has. I built out all 9 channels so i can ad other functionality in the future without building a whole new line.
I kept power and control on one wing and video on the other so everything id separated and balanced. Also the power and video lines are separated on the video wing. this is one think I don't agree with for the ImmersionRC stuff they use this 5 plug ribbon cable that has the power right next to the video. I break it our into two twisted wires do the video and power can take separate paths.
I built a holder for the camera so it can me removable if I want to replace it with a gopro.
2200 mah batteries are big for the frame so to make them flush I cut completely through and reinforce the whole plane with a sheet of EPP foam. This makes it good, tough and ridged.
Love to hear comments and suggestions. pics are below.