Zagi THL 400 speed Flying Wing Brushless?

bhursey

The Geeky Pilot
I am getting into FPV and was looking at buying a flying wing. Then it clicked. Wait a second I have a flying wing kit I gave to a friend and I had actually 2 wing core sets. I messaged him he said I could have the whole thing back. It is a original zagi thl wing with a zagi 400 speed power pod add on.. I started building it but never finished in the 90s. I was out of the hobby from 2003-2015 so basically missed the brushless coming into light... What I am wondering is. What would the equivalent of a 400 speed motor be.. Also could I just make a motor mount like the versa wing and mount an out runner to it?

The Main questions are the following.

1. Could I just run the 400 speed with a 2s setup and a voltage alarm? I have one of the voltage alarms that you hook up to the balance lead and it goes off.
2. What type of electronics would I need to convert it from a 400speed brushed setup to a brushless setup.. My 400 speed motors specs http://www.mabuchi-motor.co.jp/cgi-bin/catalog/e_catalog.cgi?CAT_ID=rs_380ph I want something equivalent that will not cause the wing to ocilate. I am thinking about this motor or one simular.. http://www.hobbyking.com/hobbyking/store/__9383__Turnigy_480L_V_Spec_Inrunner_w_Impeller_2150kv.html
3. Has any one done this or seen it done. The zagi was one of the first every flying wings. Its old school.


Kit:
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400 speed motor..
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pgerts

Old age member
Mentor
Yes!
I had a few Zagis.
I got an inrunner with 2800-3200 KV or something similar with the same weight as the old 400.
The inrunners normally get hot and need some fins for cooling.
A motor with down to half the weight of the original motor will do fine.
You probably need to go down in prop-size from the original Günter prop.
I think i used something like an APC 4,5*4 with a 3 cell 800 mAh battery.
The original motor worked fine with a 2 cell lipo without any need for alarms as i remember.
The feeling that the motor was a bit sluggish is the time to cut the throttel and glide home.
 

Foam Addict

Squirrel member
That motor is a little heavy for the THL, though is would work well on a 6x4 or 7x4.

Personally, I'd go with a floater jet replacement motor or a 2826-6 2200v motor.

http://www.hobbyking.com/hobbyking/...ement_Motor_AXN_2208_2150_USA_Warehouse_.html

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=24239

Either will give double the performance of a speed 400 on a 5x5 prop, or a much steeper climb and long flights on a 6X4 or even a 7x4 prop. I'd use a 40 amp esc and a 2200-3000 mah 3 cell. I tried to FPV my stryker with a speed 400 on 3s and a GWS 4.5x4 prop, but performance was a little anemic. :)
 
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bhursey

The Geeky Pilot
That motor is a little heavy for the THL, though is would work well on a 6x4 or 7x4.

Personally, I'd go with a floater jet replacement motor or a 2826-6 2200v motor.

http://www.hobbyking.com/hobbyking/...ement_Motor_AXN_2208_2150_USA_Warehouse_.html

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=24239

Either will give double the performance of a speed 400 on a 5x5 prop, or a much steeper climb and long flights on a 6X4 or even a 7x4 prop. I'd use a 40 amp esc and a 2200-3000 mah 3 cell. I tried to FPV my stryker with a speed 400 on 3s and a GWS 4.5x4 prop, but performance was a little anemic. :)

Issue is that it was designed for in inrunner motor. Those are out runners. I guess I could just build a plywood L mount? If you use an inrunner you literally can drop it in the electronic tray. I guess I could basically put this in the back.. https://store.flitetest.com/ft-elements-simple-firewall/
 

bhursey

The Geeky Pilot
I think the best option may be to either throw out the electronics tray and embed stuff in the wing, Or mod the tray to have the fpv camera in front, and use a versa like pusher mount. I think modding might be the best for aerodynamics that way I don't have a flat camera on the front for the sony ccd.. I can easily build the motor mount. I think out of plywood, ca and epoxy to finish her off. So basically cut the front the tray and the back off the tray and put the camera in the front and the pusher mount in the back for the out runner. What do you think? Element_firewall__69407.1412104205.1280.1280.jpg
 

bhursey

The Geeky Pilot
I just had a crazy idea... See basically I have 0$ until many next year. I have a Multistar 2206 2150KV motor. On a 3s my airplanes are basically vertical. So.. It seems it have about 16oz of thrust. Seems a speed 400 had 8oz -10oz about static thrust.. So here is my crazy idea. What if I designed the zagi to take the mighty mini powered with a 3s 1300 batter? Think it would work to power the plane?

http://www.rcgroups.com/forums/showthread.php?t=2203375
 

Foam Addict

Squirrel member
I'd hard mount it, but that motor sounds like a good match! 2208 motors will take a similar sized wing to 75mph, so that should definitely fly your Zagi!
 

bhursey

The Geeky Pilot
Think inboard verticals stabs will help with wing wabbel side to side. I have seen them start poping up on fpv wings. Normaly towed out about 1 degree..