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Boomerang Torus Merlin 140 Build

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Old 05-13-2014 | 01:45 AM
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Macrs,
Fighteraces in the UK now sell the Ashlok connectors and crimping tools, pins and clables etc.
Old 05-13-2014 | 04:53 AM
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You mention Ashlok connectors which I know are hard to find as the guy selling them decided to quit, they are made by Molex and sure if someone planned to they could source and sell them - just need a UK model company to do the leg work.......
I have the housings and various 'grades' of pins
Old 05-13-2014 | 11:43 AM
  #28  
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Done, just a few cables to tidy up a CAT to install when I receive it and the airframe to balance properly.


Turbine started first time but then again I'd be worried if it didn't




I'm guessing it'll be need 200-300 grams of lead needed sticking some of my daughters play dough on the nose

Not sure if I have enough?

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Old 05-13-2014 | 12:11 PM
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You may find you need more than that, I had to add 670 grams (1.48 lbs) of lead shot to the nose in mine; however, that being said I did glass & paint the horizontal stab and the wings which could have been a contributing factor to making it a bit tail heavy .

http://www.rcuniverse.com/forum/rc-j...thread-11.html


Attached is a layout for the balance fixture I made for mine, they slip in between the fuselage and the booms.
Attached Files
File Type: pdf
Torus balance fixture .pdf (6.4 KB, 75 views)

Last edited by RCISFUN; 05-13-2014 at 12:22 PM.
Old 05-13-2014 | 12:25 PM
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Are you balancing with the hatch and wings on, 1/4 inch behind front spar?
Old 05-13-2014 | 06:13 PM
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Yes it was all fitted up with booms, horz stab, wings, canopy and a full UAT.
Balance was on the center of spar, see post 268

http://www.rcuniverse.com/forum/rc-j...thread-11.html
Old 05-16-2014 | 07:18 AM
  #32  
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Final equipment install pics - still to balance.

The UAT is going to be replaced with a CAT and a maglock vent from gbrjets installed when i receive them.

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Old 05-16-2014 | 11:10 AM
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Originally Posted by RCISFUN
You may find you need more than that, I had to add 670 grams (1.48 lbs) of lead shot to the nose in mine; however, that being said I did glass & paint the horizontal stab and the wings which could have been a contributing factor to making it a bit tail heavy .

http://www.rcuniverse.com/forum/rc-j...thread-11.html


Attached is a layout for the balance fixture I made for mine, they slip in between the fuselage and the booms.
To balance i've had to add 400grams or 14ozs. I'll probably be removing some as its a bit conservative at the moment.

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Old 05-16-2014 | 12:35 PM
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Maiden tomorrow, then onto a new project....

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Old 05-16-2014 | 12:51 PM
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What balancer are you using there?
Old 05-16-2014 | 01:05 PM
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Cool.... I see you have lead sitting behind your nose wheel, you could lessen it a bit if you stand it on its nose and pour lead shoot directly into the nose and secure with epoxy
Old 05-16-2014 | 01:09 PM
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Originally Posted by Si_B
What balancer are you using there?
EZ Balancer

http://www.ezbalancer.com/

Bought and imported via:

http://www.dreamworksrc.com/catalog/Ez-Balancer-Ii

My one is a few years old and is anodized - much better now that they are powder coated.
Old 05-16-2014 | 01:12 PM
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Originally Posted by RCISFUN
Cool.... I see you have lead sitting behind your nose wheel, you could lessen it a bit if you stand it on its nose and pour lead shoot directly into the nose and secure with epoxy
There is a hatch directly under the retract which is where it is now, once i have an idea the final CG I'll do your method, sounds much cooler.
Old 05-17-2014 | 10:27 AM
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Hello , I got my Torus about two months ago . I just dry fitted the airplane together last night . I was suprised to find the main carbon spars of my Torus are alot thiner than the carbon spars for my Boomerang XL . The carbon spars of the Torus are about 1/16 of an inch ....a guestimate . The carbon spars for the Boomerang XL seem about twice to three times as thick....1/8 , 3/16 . Has anyone else found the same? I am thinking maybe I got the wrong parts .

Thanks for the help in advance
Old 05-17-2014 | 10:35 AM
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Nope they are thin just like my old intro but the difference being here is that there is two of them.
Old 05-17-2014 | 11:29 AM
  #41  
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Happy day today, maidened the plane and only one minor problem with a soft nosewheel pin which bent under the initial landing.

Video to follow....



Fun with quadcopter too when it started chucking it down....
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Old 05-21-2014 | 01:59 AM
  #42  
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GBRJet CAT & Maglok vent installed - both very,very well made.

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