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Revolver to 20cc gas (Read 5,450 times)
 
waverider
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Show the link to this post Revolver to 20cc gas
Apr 10th, 2012 at 12:47pm
 
This is my first venture into gasification

Job 1 - two servos, one each for the elevators
Job 2 - pull pull for the rudder
job 3  - remove a nice 91FS installation and do the   conversion
job 4 - Install all the electronics
job 5 - build and install the fuel system
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« Last Edit: Apr 10th, 2012 at 1:04pm by waverider »  

Brian H
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Show the link to this post Re: Revolver to 20cc gas
Reply #1 - Apr 10th, 2012 at 12:48pm
 
Elevator Servo Install
It basically has to go here
I am worried the elevator push rods and the rudder horn/pull pull system may interfere
It looks close
we shall see Lips Sealed
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« Last Edit: Apr 10th, 2012 at 1:05pm by waverider »  

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Show the link to this post Re: Revolver to 20cc gas
Reply #2 - Apr 10th, 2012 at 12:49pm
 
Pull Pull Rudder Install

I left the elevator push rod rudder pull pull question unanswered

Make for some white knuckle excitement for an Old fart
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« Last Edit: Apr 10th, 2012 at 1:07pm by waverider »  

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Show the link to this post Re: Revolver to 20cc gas - Engine Installation
Reply #3 - Apr 10th, 2012 at 12:51pm
 
Engine Mount
This is problematic
I do not want to cut up the nice firewall to make way for the outside width of the engine mount(s) at the firewall connection
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Beefed_up_firewall.jpg (100 KB | 261 )
Beefed_up_firewall.jpg

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Show the link to this post Re: Revolver to 20cc gas - engine Installation
Reply #4 - Apr 10th, 2012 at 12:58pm
 
My RCG 20cc engine is very slightly wider than the DLE20cc
I know from internet pictures that the Great Planes 120 size mount fits better than the stock mount that comes with the engine  but the Great planes mount requires some hacksaw surgery and the glass filled mount does not power sand well -it melts
So I cut up a $10 120 size engine mount to see if it would fit.
We shall see in the future
I have my eye on a Dubro http://www.greathobbies.com/productinfo/?prod_id=DUB688 engine mount.  But I do not have dimensions at the firewall
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Show the link to this post Re: Revolver to 20cc gas - Engine Installation
Reply #5 - Apr 10th, 2012 at 12:59pm
 
So lets look at the engine and mount assy offered up to the firewall.  The thrust line is a concern.  I may have to go 1/4 inch above the stock position with the engine
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« Last Edit: Apr 10th, 2012 at 1:01pm by waverider »  

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Show the link to this post Re: Revolver to 20cc gas
Reply #6 - Apr 12th, 2012 at 2:18pm
 
It seems like isolation mounts
- will not fit
- probably should not be used

Now to learn how to balance the prop and spinner every which way from Sunday
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Show the link to this post Re: Revolver to 20cc gas
Reply #7 - Apr 12th, 2012 at 3:16pm
 
You may want to go on You Tube and search
RC prop balancing or a search of that nature.
I'm sure once you see the demo it will be clear on how to balance prop tips, hub (centre section) and, spinner.
Can be tedious but well worth the effort.
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