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Author Topic: Sig Twister kit/electric power  (Read 3574 times)

Offline Bill Little

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Sig Twister kit/electric power
« on: September 08, 2011, 01:47:03 PM »
OK, guys, what do I need to do to the parts from the kit to mount an electric motor instead of a IC engine?  Like I know the maple motor mounts wouldn't be needed, but what about the ply doublers, etc??

I am planning on doing the "Fancher Mods" to the kit, but need an idea of what to do for mounting the electric motor.  it is a "front mount" motor.  We are using the electric set up that comes with the Brodak Super Clown Elec/Arf.  Brother Denny A. assures me the motor will be enough since he basically developed the system for Brodak.

Thanks!
Bill
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Offline William DeMauro

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Re: Sig Twister kit/electric power
« Reply #1 on: September 08, 2011, 05:21:46 PM »
Bill,
 My son Kevin and I are putting together a Twister. I will be using 1/16 doublers on it like I did on my banshee. I will be using aluminum angle Iron like i did on my banshee to mount the motor. If you take a look at Ron Hecklers Songbird or Apache in the "list your setup section" you can see those mounts. If you want closeups let me know I'll take a few of the banshee. We do put a short piece of maple mount under the doubler for the 2 screws to go through to hold the mount.
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Online Keith Renecle

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Re: Sig Twister kit/electric power
« Reply #2 on: September 09, 2011, 01:22:49 AM »
Hi Bill,

I have developed a very simple, effective way of making a profile e-stunter nose. If you look at the photos below you can see how simple it is. This was for my take-apart profile called Protron, but it will work on any profile design. If you like, I can e-mail you the plans of my Eze-Pro electric profile. I did not make proper plans of my Protron, but there are plenty of Eze-Pro's flying around here in Darkest Africa, and they fly a lot better than Twisters IMHO. The plans are in A0 pdf format and can be printed full size by any print shop these days. The file size is also small so let me know if I can mail it to you. I still have your e-mail address. Even if you don't want to build the Eze-Pro, you can get some ideas for your Twister. I've included a pic of Peter Locke's version called the "40 Watt". Here are the photos:

Keith R

Offline Bob Hunt

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Re: Sig Twister kit/electric power
« Reply #3 on: September 09, 2011, 05:14:55 AM »
Wow! That is very nice work, Keith! I love how clean it makes the nose.

Later - Bob Hunt

Offline Crist Rigotti

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Re: Sig Twister kit/electric power
« Reply #4 on: September 09, 2011, 05:48:49 AM »
Keith,
Very, very nice.
Crist
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Online Keith Renecle

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Re: Sig Twister kit/electric power
« Reply #5 on: September 09, 2011, 09:49:42 AM »
Thanks guys, I was looking for a way to cover up all the plumbing and works well. I've added some pics again of the finished Protron and it certainly makes the profile nose neat without having the wires everywhere. The reason that I have not made proper plans for this take-apart profile is because I've found a better way of making electric models that are better than profiles and almost as simple to make. If it works out as expected I will share it here.

The normal Eze-Pro with the engine is on my website for some time now, and I'll upload the electric plans this week-end and post the link.

Keith R
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Online Keith Renecle

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Re: Sig Twister kit/electric power
« Reply #6 on: September 10, 2011, 12:38:53 AM »
O.K. I managed to get the plan of the Electric Eze-Pro loaded on my website. (I always forget how to do this after a while) Here is the link: http://www.keithrenecle.co.za/Electric%20CL.htm

I used the E-Max or Arrowind 2820 motor with a 40 amp esc, and with my governor timer, it makes a low-cost, easy to use package. The wing is built with a similar system to the Tom Morris Millenium wing that uses ribs like the I-Beam system. I make my own bellcranks from 6 mm polyethylene (it machines easier than nylon) but you can use whatever bellcrank you like. If anyone needs more details then drop me an e-mail.

Keith R
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Offline builditright

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Re: Sig Twister kit/electric power
« Reply #7 on: September 10, 2011, 03:30:55 AM »
The motor Jim Howell sent me was a Scorpion with a rear of the shaft stuck out, so I made an extra set of parts to hold a bearing for the rear shaft.

Anyhow... here's the early photos of what I did for the Spacewalker-E.c. nose.
 
**There have been a few minor changes since these pictures were taken but none the less
once I get things all together; I will be offering conversion sets for offset and center mounted motors.

  
« Last Edit: September 10, 2011, 03:48:45 AM by builditright »
Thank you and God Bless
Walter
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Offline PerttiMe

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Re: Sig Twister kit/electric power
« Reply #8 on: September 10, 2011, 03:58:12 AM »
The principle is pretty simple: put a firewall where you want the motor to be. Maple mounts may well be overkill for supporting the "firewall", but also consider balance. Don't build the nose so light that you'll have to add weight. If you are going to have weight there anyway, it might as well be doing something useful, like adding strength.
I built a Blue Pants as a kid. Wish I still had it. Might even learn to fly it.

Offline John Rist

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Re: Sig Twister kit/electric power
« Reply #9 on: September 10, 2011, 08:48:57 AM »
The motor Jim Howell sent me was a Scorpion with a rear of the shaft stuck out, so I made an extra set of parts to hold a bearing for the rear shaft.

Anyhow... here's the early photos of what I did for the Spacewalker-E.c. nose.
 
**There have been a few minor changes since these pictures were taken but none the less
once I get things all together; I will be offering conversion sets for offset and center mounted motors.

  

DO I understand correctly.  You plan to sell motor mounts for profile ships.  I would suggest a unversial set of side plates that are oversize and would be a trim to fit any model.   PS I would be interested in a set.
John Rist
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Offline john e. holliday

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Re: Sig Twister kit/electric power
« Reply #10 on: September 10, 2011, 06:22:29 PM »
Keith R,  now have your site in my favorites.  The planes look so much better with all the wires out of sight.   H^^
John E. "DOC" Holliday
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Offline builditright

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Re: Sig Twister kit/electric power
« Reply #11 on: September 10, 2011, 07:33:07 PM »
DO I understand correctly.  You plan to sell motor mounts for profile ships.  I would suggest a unversial set of side plates that are oversize and would be a trim to fit any model.   PS I would be interested in a set.

Yes this would be a universal set which would include the outer frame and plywood mount similar to what is shown in the pictures above.  

The frame is made from basswood not from maple, so it would act as a stiffener.
All that would be needed before installing "if scratch building" is basically cut a rectangle out of the fuselage before the doublers went on.

Retro fitting would be similar in that you would need to open the existing mounts so they are wide enough to fit the plywood mount.  

The best part is the holes for the E motor and X mounts are already in plywood. I can even supply a rear mount and bearing for E motors with the back shaft.
Thank you and God Bless
Walter
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Online Keith Renecle

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Re: Sig Twister kit/electric power
« Reply #12 on: September 10, 2011, 11:27:53 PM »
Keith R,  now have your site in my favorites.  The planes look so much better with all the wires out of sight.   H^^

Thanks John, my thoughts exactly, an it's quite easy (or is that "Eze"?) to do.  ;D

Keith R
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Offline Bill Little

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Re: Sig Twister kit/electric power
« Reply #13 on: September 12, 2011, 01:23:21 PM »
Thanks, Keith, and everyone!  I "think" the problem might be solved.  Slowly getting "electrified". ;D

Bill
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Offline Michael Boucher

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Re: Sig Twister kit/electric power
« Reply #14 on: September 18, 2011, 07:09:03 AM »
Very clean installation, beautiful!   :)
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