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Old 06-24-2013, 06:49 AM
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United States, LA, Shreveport
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da 170, Mtw RE3 pipe, going into a 3dhs Extra 330 119"

This will be my thread for an airplane that will take place of my down extra.
i will be using powerbox royal spektrum.
Da 170
MTW re3 pipes

now, i have to decide on number of servos, if planning to do severe 3d, higher speed maneuvers.
should i go with:

each aileron surface 3 servos
each elevator half 2 servos
rudder 2 servos

vs:

each aileron surface 2 servos
each elevator half 1 servo

i plan to use these servos, unless anyone else has any other suggestions:
(savox SB - 2270 SG)
Dimensions(mm): 40.3x20.2x38.5
Weight(g): 69.0
Speed(@4.8V sec/60): .19
Torque(@4.8V oz-in): 291.6
Speed(@6.0V sec/60): .15
Torque(@6.0V oz-in): 347.2
Speed(@7.4V sec/60): .12
Torque(@7.4V oz-in): 444.0
Gear: Unique Steel
Bearing: 2BB

being that this plane has been flown by bonedoc with a dle 111 on mufflers (superlite) and i think he only used one rudder servo and i do not know if he used 2 vs 3 on aileron and if he used 1 vs 2 on elevators

i know mine will be heavier, probably closer to 40 pounds, (than his 34 pounds), i would lean to more servos.

would love to hear your comments
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Last edited by orthobird; 06-24-2013 at 06:55 AM.
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Old 06-24-2013, 08:28 AM
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So it's for hard core 3d ?
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Old 06-24-2013, 01:04 PM
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Las Vegas,Nevada
Joined Oct 2006
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I would go with 3 on the ailerons, I am running 2 JR Propo MP82T on my QQ120" Yak for the wings and they are about 560oz of torque and they developed slop after 7 flight. elevator should be fine with 1 servo just make sure you got 1-1 ration on the servo and control surface.
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Old 06-24-2013, 01:32 PM
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Three per aileron, two for rudder, one per elevator. You won't be near 40lbs.
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Old 06-24-2013, 01:43 PM
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Rob how much was yours with the 150 ?
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Old 06-24-2013, 07:57 PM
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Mine was right under 38lbs with a DA-150(heavier than a 170), and I had three, four cell Duralite 4600mAh batteries on two receivers and a two cell Duralite 2200mAh ignition battery. Plus an old school, thick plastic gas tank and a Tru Turn aluminum spinner. I could have dumped a pound easy with buying some newer stuff, but I had everything sitting on the bench already. It still flew very well and was very floaty.
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Old 06-29-2013, 07:43 AM
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i was able to pick up the airplane from fed ex yesterday and brought it home, without my wife knowing, i took it to my lair. i am going to have to tell her eventually. just looking for right time. last night, i brought her some flowers, this made her happy. just working it up from here.
the packaging of the airplane was excellent. the HW package appears to have quality stuff. the wheels it came with are awesome. most 40% ARF kits don't have this much add ons as this one. it even has two different elevators/stab sets!!

awesome!!!
i am excited.
now, i just need to get time to put it together.
should be real fun!!!
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Old 06-29-2013, 08:08 AM
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I like your style, sometimes they don't need to know everything! Unfortunately for me, my 5 year old tells on me every time. I am going to have to teach him the rules of the house soon!
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Old 06-29-2013, 08:51 AM
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looked at the control surfaces on the aileron and they are HUGE!! i think definitely 3 servos per wing.
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Old 06-29-2013, 08:51 AM
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Quote:
Originally Posted by dooinit View Post
I like your style, sometimes they don't need to know everything! Unfortunately for me, my 5 year old tells on me every time. I am going to have to teach him the rules of the house soon!
same with mine, she is 6 years old. i have not told her either. LOL.
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Old 07-01-2013, 12:58 AM
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got a little bit done. installed the landing gear and the landing gear boots, however, i was uncertain as to which screws are supposed to hold them in, one of them does not sit square on the CF LG and fuselage. OTW, it sure does add a nice touch. i also could not find the pins for the rudder hinges. i will keep looking.
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Old 07-01-2013, 01:20 AM
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Cam there is one wire that holds the rudder on. It is taped to the inside wall of the fuselage box. Hope you didn't throw it away already! As for attaching the landing gear cuffs, I like to use silicone or Goop. I run a little bead where it comes in contact with the fuse and the gear. It makes a clean looking install, it's easy to remove if you need to, and you don't have to worry about them getting loose from vibration over time. I had a few screw heads pop off over time and the holes in the cuffs would eventually wallow out and the cuffs would start to vibrate. Not a problem with silicone or Goop.
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Last edited by BOSSIER_ROB; 07-01-2013 at 01:25 AM.
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Old 07-01-2013, 01:56 AM
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Hi Rob,
thanks for advice. you won't believe that i went to dispose of the boxes in a recycling area, and as i was breaking up the boxes and folding them, i found the L shaped wire, so i removed it and put it on my work bench, having then forgotten about it, but thinking, what is this for. then, after posting this previous post, i laid down to sleep, and a light bulb turned on!!!
i realized that the wire was for the rudder, so i retrieved it and installed it just now.
I still have to fix the cuffs and the tail gear. looks like tail gear tiller arm is too short.
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Old 07-02-2013, 12:50 AM
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i was able to fix the tiller arm situation.
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Old 07-03-2013, 09:28 AM
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Congrats on the new plane Cam. Looks nice Good choice.

Spats
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