Champion mark III help please

[I'llmakeitwork]

Hello I've been a fan of flite test and the community for a long time now, but I'm fairly new to the hobby. I've built a few foam aircraft and flown/crashed them. My friend a while back found an original 1979 livewire champion mark III unassembled kit in his basement and have it to me. I worked on it on and off, but I've recently been pushing myself to get it finished and have a maiden flight before I head out to college. Since all the plans and everything are from 1979 and little information is on the internet for a new person to the hobby relating to this kit I was wondering if anyone could help me determine what electronics would be good for this. It is a trainer airplane that when finished the airframe is supposed to be 30oz.
Any help would be greatly appreciated.

 

[rockyboy]

Welcome to the forums!!

I think you'd be in the right range for a motor like this PowerUp 10 from HeadsUpHobby.com

http://www.headsuphobby.com/Power-Up-10-Sport-1000kv-Outrunner-Brushless-Motor_p_1598.html

If you go to the prop test data tab for this motor they have thrust ratings listed for various propeller and battery combinations using this motor. If you're going to be around 30oz, and with a trainer airframe, I'm thinking a 9x6E w/ 37oz of thrust would be a good match. This combo still keeps you a little over 1:1 thrust to weight ratio. If that 30oz weight is bare airframe w/o motor or battery, then you'll perhaps want a little extra thrust. But plenty of power options to go up on battery or prop using that motor.

There is a thread I spotted from 2006 that used a bigger motor to get the same amount of thrust for this airframe - and positive flight reports - motor tech keeps getting better and better.

https://www.rcgroups.com/forums/showthread.php?565216-Midwest-Livewire-Champion-MkIII-Rebuild

 

[I'llmakeitwork]

Welcome to the forums!!

I think you'd be in the right range for a motor like this PowerUp 10 from HeadsUpHobby.com

http://www.headsuphobby.com/Power-Up-10-Sport-1000kv-Outrunner-Brushless-Motor_p_1598.html

If you go to the prop test data tab for this motor they have thrust ratings listed for various propeller and battery combinations using this motor. If you're going to be around 30oz, and with a trainer airframe, I'm thinking a 9x6E w/ 37oz of thrust would be a good match. This combo still keeps you a little over 1:1 thrust to weight ratio. If that 30oz weight is bare airframe w/o motor or battery, then you'll perhaps want a little extra thrust. But plenty of power options to go up on battery or prop using that motor.

There is a thread I spotted from 2006 that used a bigger motor to get the same amount of thrust for this airframe - and positive flight reports - motor tech keeps getting better and better.

https://www.rcgroups.com/forums/showthread.php?565216-Midwest-Livewire-Champion-MkIII-Rebuild

I'll start there, any tips for servos?

 

[rockyboy]

I'd guess the kit recommends 9 or 12 gram for that size airframe - and stick with the metal gear servos for any plane you will care about - plastic gears are for foamies IMHO ; ).

Heads Up Hobby has great stock, lightning fast shipping (almost as good as Amazon getting to my house in Virginia) and excellent customer service if anything doesn't work as expected. (I'm not a sponsored pilot, just a rabid fan created by excellent service.)

http://www.headsuphobby.com/Power-Up-12g-AS181MG-Analog-Metal-Gear-Sub-Micro-Servo_p_1894.html

or this one if you're feeling lucky
http://www.headsuphobby.com/Towerpro-9g-SG90-Sub-Micro-Servo_p_182.html

(My beef with the plastic gear servos is a bad bump on a control surface as you're loading or unloading a model from the car can strip one out in an instant. The metal gear ones hold up much better to hangar rash.)

 

[Turbojoe]

Looks like a nice plane.

I'm with Rocky for a huge thumbs up for HeadsUp R/C. They are amazing for customer service, price and shipping.
Lately instead of my normal high dollar Hitec HS-65mg's I've been buying piles of the Power up and eMax metal gear servos. The under $5.00 price is a no brainer and I haven't had a single failure. I trust them even on a helicopter.

Joe