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AJ Laser 230z 73" Build Thread

dcraft

dcraft

30cc
AK, I'm almost done my build, how are you operating the choke on the engine? I was planning on using a servo to operate it, but me thinks just to operate it with ball link and rod extending through the cowling. Just looking for an idea.

dc
 
vegasking

vegasking

70cc twin V2
20140826_140136.jpg

20140826_140403.jpg
 
AKNick

AKNick

640cc Uber Pimp
I was having a hard time with this myself. Still trying to figure out the best method. It really depends on what exhaust you are running and how you position the choke arm on the carb. I like the top photo personally, but might run a phenolic board instead of the aluminum. I still haven't decided on my connections or exhaust. The 4-40 throttle arm doesn't actually give you enough room to attach 4-40 hardware which is ridiculous (the hardware will run into the engine mount or the diaphragm plate). And the choke... everybody seems to be flipping them 180 degrees. Horrible geometry when rigging these DA-35's... definitely not user friendly.
 
dcraft

dcraft

30cc
I know what what the directions say in reference to the cg location, however, I'm missing something in translation....where is the recommended location for the cg. Is it in relation to the wing tube, or leading edge?

dc
 
AKNick

AKNick

640cc Uber Pimp
Leading Edge

Measure from the side of the fuselage where the wing root (where the wing meets the fuse) is at the leading edge, then measure towards the wing tube. The CG should end up 1" in front of the wing tube is what I read. So in other words it should balance out on the forward side of the wing tube.

AJ:
[FONT=&quot]"The model will balance about 1" in front of the tube. Should be fairly close to zero coupling when the cg is there."[/FONT]
 
Last edited by a moderator:
dcraft

dcraft

30cc
Well, it it is right on the money. With a full tank of gas it is spot on. As the gas depletes, it goes ever so slightly taill heavy. I think moving the battery forward will take care of that. Thanks for the info. This thing goes into the air Friday.

Dave
 
AKNick

AKNick

640cc Uber Pimp
Great!! Let me know how it goes! If you get a change post what you have in it. Maybe a pic under the hatch?
 
dcraft

dcraft

30cc
Will post pictures, and let you about the flight. I have a DA35 under the cowl, with a 20-8 Zoar prop, and using H-5565MH servos. As for the servos, I'm not a hard flyer...yet:)
 
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