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RCAero JC Engines & YDA Engines

Old 08-18-2010, 04:09 PM
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Default RE: RCAero JC Engines & YDA Engines

Laryboy and michel,

Are you guys referring to the spring loaded choke mechanism that latches on the throttle arm? If so, I understand.

I set my choke up on a separate servo, so I had to do away with that feature. I simply removed the spring from the choke rod, and trimmed that catch off the throttle arm. The choke is now completely separate from the throttle, and both work just fine.
Old 08-18-2010, 04:14 PM
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Default RE: RCAero JC Engines & YDA Engines

Here's a picture of the set-up I used:
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Old 08-18-2010, 04:15 PM
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Default RE: RCAero JC Engines & YDA Engines

Hi

I believe strongly in the KISS system . I like manual choke . There is no indent on the choke arm so that makes manual choke difficult . Since there is NO indent on the choke shaft , it,s a pain in the BUTT .

It,s a matter of preference for each modeler

Michel
Old 08-18-2010, 04:16 PM
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Default RE: RCAero JC Engines & YDA Engines

Hi

I believe strongly in the KISS system . I like manual choke . There is no indent on the choke arm so that makes manual choke difficult . Since there is NO indent on the choke shaft , it,s a pain in the BUTT .

It,s a matter of preference for each modeler , DA,s system and others , works fine for me


Michel
Old 08-18-2010, 04:20 PM
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Default RE: RCAero JC Engines & YDA Engines

gabarber has the right idea we did the same thing to ours. It works great. I kinda like the idea after I thought about it for awhile though. I think my next one I will keep stock. Its nice since we are always trying to keep the the weight down on planes and I use a optical kill switch in all my planes. I dont need a servo activated choke anymore to kill the engine. So this lets me eliminate one more thing out of the plane.
Old 08-18-2010, 04:23 PM
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Default RE: RCAero JC Engines & YDA Engines


ORIGINAL: gabarber

Here's a picture of the set-up I used:
Hi

Did you know that if you lengthen youre servo arms , you will have better TRIM control at idle ( where you need it ) . If you have 15mm at the servo arm , you should have 15 mm ( Min ) at the throttle output shaft .

But thats just me

Michel
Old 08-18-2010, 04:24 PM
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Default RE: RCAero JC Engines & YDA Engines

I can see how it can be good to save weight, but in my case, I had a 104" Super Cub to play with- no worries on saving weight there! With the JC on the fire wall, it is a blast to fly! Definitely no lack of power on the Super Cub- she weighs in a little over 14 pounds, and has plenty of lift!
Old 08-18-2010, 04:26 PM
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Default RE: RCAero JC Engines & YDA Engines

in my case i used up all channels on reciever
Old 08-18-2010, 04:27 PM
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Default RE: RCAero JC Engines & YDA Engines


ORIGINAL: laryboy

in my case i used up all cannels on reciever
Hi
You didn,t get the point , how many channels has nothing to do with it . Have a look at this http://www.rcaer.com/userfiles/file/...as%20Carbs.pdf
Old 08-18-2010, 04:30 PM
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Default RE: RCAero JC Engines & YDA Engines

Michel,

The next plane I set it up for the JC, I am going to use a longer arm. For now, it's working fine, so I'll just leave it.

The JC is currently in my Aeroworks Cessna 195 and running strong, but it may be coming out of the Cessna for another project soon.

For the Cessna, I ran a short ny-rod forward to the lip of the cowl and manually opened and closed the choke. The ny-rod had enough tension on it to hold the choke open and closed without any other help.
Old 08-18-2010, 04:53 PM
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Default RE: RCAero JC Engines & YDA Engines

i was refering to garbers solution of adding a choke servo. i have no spare reciever channels
Old 08-18-2010, 06:54 PM
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Default RE: RCAero JC Engines & YDA Engines

I don't like to use a servo on choke. I got this Idea from erieqc. I routed my nirod backwards and had it exit on the bottom of the fuse. This way I can just pull on it and set it. I to hated it at first but got to liking it after I got used to it. Think of it this way. When you set the spring loaded choke to start your engine the throttle is always in the right spot for starting. I always have help starting the engine so We came up with a system where you set the choke by pulling on the nirod and moving the throttle with the servo to where it locks the choke. The helper has the radio and the prop mann flips till it starts. As soon as the engine fires the person with the radio just advances the throttle and the engine stays running. It took a little getting used to but once we got the hang of it, it became easy.
The second thing we learned was. You can pay attention to where the throttle stick is when the choke sets and you can move the throttle there before you pull the choke and it will lock itself in with a slight click that you can hear when you have the cowl on and can't see it. But it is best to practice setting the choke with the cowl off just to get used to it. I think if you decide to try this method you will learn to like it just like we did.
Here are some picks of my set up.
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Old 08-18-2010, 07:28 PM
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Default RE: RCAero JC Engines & YDA Engines

TSERES......i tried your suggestion with the engine in my lap. it does exactly what i was looking for i.e. a way to set the choke without stressing the throttle servo. i may get to like it but i am old and hate change. i still wear my grand fathers sweater.
Old 08-18-2010, 07:56 PM
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Default RE: RCAero JC Engines & YDA Engines

Tom that is slick I really like that setup. Thanks for sharing.
Old 08-18-2010, 08:54 PM
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Default RE: RCAero JC Engines & YDA Engines

I bet that sweater is warm. I'm kind of like that myself.
Somethings shock me from time to time. It's not the sweater.
Old 08-18-2010, 08:57 PM
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Default RE: RCAero JC Engines & YDA Engines

now that we answered that one ,where do i buy a pitts style wrap around (inverted ) muffler for the 28?
Old 08-18-2010, 08:59 PM
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Default RE: RCAero JC Engines & YDA Engines

This might help for mufflers.

http://www.jtecrc.com/index.htm
Old 08-18-2010, 09:06 PM
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Default RE: RCAero JC Engines & YDA Engines

I have a jetec on mine and it looks good haven't flown it yet but i hear it reduces the
noise a bit as well!
Old 08-18-2010, 09:30 PM
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Default RE: RCAero JC Engines & YDA Engines

I got one from JTec as well. It really takes the crackle out of the engine, yet it still has a very nice sound to it.

This is the one I have- I got it for the specifically for the Cessna 195, but if they don't have one for your specific application, they can make one for you!

[link=http://www.jtecrc.com/airplanespecificwraparounds.htm]JTec wrap around Pitts muffler[/link]

Al and Kevin (at JTec) are great guys, and they bent over backward to help me.

This is the set-up in my Cessna 195:

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Old 08-18-2010, 09:34 PM
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Default RE: RCAero JC Engines & YDA Engines

If you want to hear the engine, [link=http://www.rcuniverse.com/magazine/article_display.cfm?article_id=1267]click here[/link] and scroll down to the video of the Cessna 195. I really like the way this engine/muffler cobination both performed and sounded.
Old 08-18-2010, 09:46 PM
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Default RE: RCAero JC Engines & YDA Engines

Mine is also a J-Tec. I like the sound.
You can also hear it and see it perform in my old Cub right here: http://www.youtube.com/user/tseres1?.../2/QLihx82XqrI

I hated the Cub but liked the engine. Gave the Cub to a friend who appreciated it more then I did and kept the engine for my Sbach.
Old 08-19-2010, 09:19 AM
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Default RE: RCAero JC Engines & YDA Engines

Nice did they have to custom make the pitts or do they already have something that we would need to refer to.
Old 08-19-2010, 10:28 AM
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Default RE: RCAero JC Engines & YDA Engines

Hey All

When you call Jtec... and talk to Al or Kevin, let them know it is for our engines. They have them all set up and ready to go.

Cheers
Henry
Old 08-19-2010, 11:40 AM
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Default RE: RCAero JC Engines & YDA Engines

They make their mufflers to order. It don't take them long. That just means they can make changes for you if you request it.
Yes. Good people to work with.
Old 08-19-2010, 01:32 PM
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Default RE: RCAero JC Engines & YDA Engines

Here is the new YD Aero Emblem that I designed. I can make it with and without the flames. It can also be made in an assortment of colors as well.

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