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RE: 15cc Gas RCGF engine information thread - 3/15/2012 1:07 AM   
RBean


 

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From: Easton, PA, USA
Status: offline 		I got the installation finished and have about seven flights on the engine. The little 15cc engine is enough for this plane. Does all the manuvors fine. Not 3D of course. The engine was a little touchy getting idle correct but doing ok. With a 14-6 turns 9,500 rpm with a 14-8 turns about 8,250 rpm. Started the first time without the electric starter and has started easily so far. At 29 oz its a little heavy for only 15cc but in this bi-plane the weight was needed anyway for the cg, so no problem. Not the engine for a warbird.

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RE: 15cc Gas RCGF engine information thread - 3/15/2012 1:57 AM   
ish22


 

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From: frazer, PA, USA
Status: offline 		FOR SALE!!! FOR SALE!!!!i have a 15 cc i only run it two min.... thats all... all it needs a new cdi . 140.00 shipped anywhere in the usa.. this is my email..i can sendo y some pics... ish-22@hotmai.com

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RE: 15cc Gas RCGF engine information thread - 3/30/2012 11:08 PM   
AJsToyz



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RE: 15cc Gas RCGF engine information thread - 6/9/2012 3:06 AM   
DL8698


 

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From: Singapore, SINGAPORE
Status: offline 		Hope this thread is still alive.

Just received my RCG 15cc yesterday. Found the engine has no marking at all to indicate it is an RCG and the box it came in says "ET 15cc" and another sticker says "Manufactured by RCGF". Fortunately I have read a post here that says it is to be expected when engine is from HK.

I ordered this engine in anticipation of fitting to either the Phoenix Tiger 60 or the World Models Super Chipmunk 90R being advertised on a LHS web site.

But to my horror when I called up the LHS I found out that these 2 planes have been out of stock for a very long time, and I think probably not going to be stocked anymore. (Looks like they don't bother to update their site)

So I am still hunting for a suitable plane to fit my RCG 15cc engine into.

Plane I am looking for:
1. Not really interested in 3D type
2. Scale or semi scale, preferred with flaps (am considering the TT Cessna 177 Cardinal but it has no flaps, and not very sure about the ABS type of construction). Or at least looks like it could be based on full size plane.
3. Fixed gear is ok, not too keen on retracts.
4. Prefer low wing, as presently I have a high wing trainer, but it has a glow 35 (very old engine). Intend to give up glow as my old stock of glow fuel is now exhaused. Initially thought of fitting this 15cc to this plane but when I received the engine I realize it is much bigger and heavier than I first thought.
5. Not so keen on warbirds. More interested in General Aviation types.

Any Suggestions on suitable planes?

Please note that I stay in Singapore. If any vendor responds please also mention how much it would cost to ship your plane to me here in Singapore. Someone here mentioned he ordered a plane from US which cost the same or more than the price of the plane for shipping alone.

I have looked at our LHS here in Singapore and can't really find much of what I want, and even then it is either nil stock/discontinued/too expensive. Also did a search for planes on internet sites. Nothing much turned up


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RE: 15cc Gas RCGF engine information thread - 6/9/2012 3:20 AM   
DL8698


 

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quote:

ORIGINAL: misfitsailor

I Bought a RCGF 15cc from Agape in August 2010. Although I have lots of glow engine experience, this is my first try at gasoline powered flight.

The problem I am having is this: The engine starts and runs great, but when I rev it up past a few thousand RPM the servos go nuts. I have done enough break-in to fly now. Very frustrating...

Here are the things I have tried so far to fix the problem:

I moved the RX, radio battery and switch back to the tail of the fuselage.

I changed to a non-metallic throttle pushrod.

I moved the ignition to the extreme fwd end of the fuse, along with it's battery and switch.

The ignition uses a separate battery and switch, far from the radio battery and switch.

I tried 50 MHZ PCM, and 72 MHZ RXs, but no joy. (No, I still don't use 2.4 GHZ.)

I am using the stock ignition with the fully-shielded plug wire and all-metal cap provided, and the stock CM-6 plug. And yes, the cap is all the way on tight!

There are no metal to metal radio noise issues.

Any help is appreciated. Thanks


Hi, I have read your subsequent posts too, and was wondering have you solved your problem yet?

I believe the return path for the spark is through the wire braid which is also supposed to be the shield. I wonder if it would help to run a dedicated earth wire between the ignition module earth and the engine? Or would that wire generate its own RF signals?



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RE: 15cc Gas RCGF engine information thread - 6/10/2012 4:31 AM   
RBean


 

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From: Easton, PA, USA
Status: offline 		I lost the Waco. Rudder jamed all the way over to the left in a snap roll. kind of hard to recover from a spin with the rudder all the way over. The engine survived. I installed in a Graupner 60 size Extra. I moved the firewall back about 1.75 inches since the engine weights more than the Magnum 91 FS it is replacing. The conversion to gas added about 3/4 lb to the weight of the plane. Now that it is broke in, it has adequate power. Was turning a 14-6 prop 10,000 rpm so I replaced it with 14-8. Now about 8,400 rpm. The engine starts easy, the idle is not the best. It has been dependable. However, if I had to do over I would pass up this engine and go with a DLE 20. It is the same weight and only slightly longer with a whole lot more power and better idle.

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RE: 15cc Gas RCGF engine information thread - 6/10/2012 1:35 PM   
ahicks


 

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From: Waterford, MI, USA
Status: offline 		Did you figure out why the rudder jammed? Could it have had anything to do with a single NiMh battery causing the receiver to brown out?
I lost a Funtana on knife edge is why I'm asking. It did have digital servos though, so there was a pretty hefty draw on that battery pack. Took me a while to figure out what happened, just thought I'd toss it out in case it helps. Hate seeing planes go in for reasons not understood.

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RE: 15cc Gas RCGF engine information thread - 6/13/2012 1:52 AM   
RBean


 

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Status: offline 		Yes, I think I figured it out. It was mechincal. The tube through which the tail wheel push rod went came loose and slide back jaming things up. On side of the servo arm was connected to the tail wheel and the other to the rudder. So they were connected and that jamed the rudder. I'm using the same engine, radio, transmitter and batteries in the Extra with no problems.

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RE: 15cc Gas RCGF engine information thread - 6/22/2012 2:49 AM   
DL8698


 

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From: Singapore, SINGAPORE
Status: offline 		I've got a second hand GP Lancair ES. With the standoffs that I got with the engine, the engine sits too far back for the drive washer to line up with the cowl opening. I need to move the engine about 14 mm forward to fit the cowl.

What's the best way to do this? Thinking of a big pile of washers but may be a bit too shaky? Or get a steel tube, but I don't quite like using a long bolt that will be needed in order to have enough threads engaged into the standoff. The bolt will need a grip length of 14 mm plus 8 mm which is the thickness of the firewall.

I am thinking of mounting the standoff on a piece of plywood of about 14 mm thickness, then bolt the plywood to the firewall, thus moving the engine forward by the thickness of the plywood.

Any suggestions?


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RE: 15cc Gas RCGF engine information thread - 6/22/2012 3:56 AM   
MercerAUST


 

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From: Canberra, AUSTRALIA
Status: offline 		I've had similar problems. In the end I went for a combined approach. I first cut the cowl where it fits onto the fuselage to shorten it. I saved 5mm by pushing in the cowl/minor cutting.

The next part was to add 5mm thick hardwood blocks to the firewall for each side of the beam mount (about 20cm X 80cm for each side). You might find that the mounting bolts with the engine are now not long enough and you will need to get longer ones (available from any hardware shop). Make sure you test mount first to figue out your fitting/drill requirements for the throttle cable and fuel lines.

You want to minimise the additional weight of effectively pushing [an aleady heavy] motor forward as much as you reasonably can.

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RE: 15cc Gas RCGF engine information thread - 6/22/2012 9:07 PM   
DL8698


 

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From: Singapore, SINGAPORE
Status: offline 		I managed to mount the engine sideways and with the help of washers I managed to move the engine forward enough to align the prop with the cowl. Feeling so pleased with myself!

Then, I took a look at the muffler, or should I say the garbage can that passes itself off as a muffler!. How  am I going to fit that hugh round "thing" inside the beautiful slim cowl? I estimate that a big chunk of the fwd part of the muffler will stick thru the cowl. How ugly!!

I intend to chop off at an angle a portion of the muffler, as indicated by the red shaded portion, in the attached photo. Then I seal off the hole with a aluminium plate and epoxy. Will this affect the muffling effect or running of the engine? I think it does create a bit of restriction to the exhaust gas exit.

Or maybe make my own muffler out of alum sheet metal. In any case I read that the stock muffler is not very efficient at noise reduction so my home made muffler is more for the sake of directing the exhaust gas out of the cowl than for reducing noise.


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RE: 15cc Gas RCGF engine information thread - 7/25/2012 4:57 AM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		Just put the new 15cc bm motors in my planes they are a better motor than the cnc version
very little vibration if any

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RE: 15cc Gas RCGF engine information thread - 7/25/2012 5:56 PM   
DaleD


 

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quote:

ORIGINAL: musterpilot

Just put the new 15cc bm motors in my planes they are a better motor than the cnc version
very little vibration if any


Couldn't agree with you more.  I bought a beam mount from AMRIT in Canada and paired it with a 15x7 RCGF prop. Thelittle baby has performed well beyond my expectations.  Easy starting and she runs smooth from idle to WOT.  Have it installed in a UltraStick 60, with phenomenal results.  
http://www.youtube.com/watch?v=wHmZfGf9AWk&feature=youtube_gdata_player

DaleD

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RE: 15cc Gas RCGF engine information thread - 7/28/2012 11:01 AM   
nomadmariner


 

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From: MacleanNew South Wales, AUSTRALIA
Status: offline 		Ok guys need help with the throttle linkage. Maybe I am just tired but it has me stumped (temporary of course ) However I could really do with some advice and photos of how people have completed the job.
The problem I am facing is a combination of not enough room to get a good ball joint connection combined with the throttle lever rotating a full 180 degrees. Now I am guessing that the throttle lever does not ever really wind back to the stop, as the motor would not idle, and it can therefore come off a bit so making the rotation angle of @ 150 degrees. Thoughts please and pictures would be great.

Glenn


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RE: 15cc Gas RCGF engine information thread - 7/28/2012 12:04 PM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		Glen I have one photo that my help
if not will take some photos in the morning
and post them for you

John

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RE: 15cc Gas RCGF engine information thread - 7/28/2012 1:33 PM   
nomadmariner


 

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From: MacleanNew South Wales, AUSTRALIA
Status: offline 		G'day John,

Thanks for the photo and if anything that just confirms my belief that when it all looks terribly wrong then it is best to walk away and have a beer
Your photo is great in that it explains why you can fit your throttle linkage and I have had trouble (past tense) as I have an RCG 15 not an RCGF and the carbs are rotated 90 degrees out, which screws everything up quite a bit. Teach me for going for a HK model  
Any how I have fixed the problem with a flexible Sullivan cable led convolutely around to give a good lead and while it will not allow the throttle to rest fully back it does give it considerable movement. Will just have to see how successful I am when I fire it up to give it a quick tune. 
By the way the engine is going into a Super Kraft Waco UPF - 7. Might be a touch heavy forward and may need some lead down at the tail but will see once the assembly is complete.

Glenn


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RE: 15cc Gas RCGF engine information thread - 7/28/2012 1:50 PM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		No worries Glenn btw make sure you locktite the screw on the arm on the carby

don't hesitate to get in touch if you need a hand also photos

John

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RE: 15cc Gas RCGF engine information thread - 7/28/2012 10:38 PM   
nomadmariner


 

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From: MacleanNew South Wales, AUSTRALIA
Status: offline 		Thanks John, 
Yes Loctite is my friend Speaking of which I need to pick up some more.
Looking at the plane this morning my thoughts are now tending towards balance and weight. 
Ah the lovely problems of building beyond what the original designers had planned Another coffee and I am sure inspiration will come upon me.

Glenn


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RE: 15cc Gas RCGF engine information thread - 7/29/2012 3:44 AM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		This is what I have my 15cc bm engines in

A scratch built Piper Pacer

h9 piper pawnee

sportsman aviation victa airtourer

being 60 plus I like to fly around nice and slow
but at full power with these motors I need a beer after flying

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RE: 15cc Gas RCGF engine information thread - 7/29/2012 3:06 PM   
Kenpilot


 

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Status: offline 		Musterpilot,

How does your Pawnee handle with th 15cc in it? I have a 15cc sitting around, although not the BM version, and it is looking for a home. Took it out of my Cub, just didnt like all the noise and vibration, but it ran fine.

Does it have enough power?

Thanks.

Kenpilot

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RE: 15cc Gas RCGF engine information thread - 7/30/2012 12:19 AM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		G'day kenpilot

my Pawnee flies like a dream with the 15cc in it

flies very scale at around 1/2 throttle I had the 15cc cnc mount version in mine

and had a bit of vibration but with the beam mount there is next to no vibration

John

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RE: 15cc Gas RCGF engine information thread - 7/30/2012 1:33 AM   
the pope


 

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From: goolwasa, AUSTRALIA
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quote:

ORIGINAL: musterpilot

This is what I have my 15cc bm engines in

A scratch built Piper Pacer

h9 piper pawnee

sportsman aviation victa airtourer

being 60 plus I like to fly around nice and slow
but at full power with these motors I need a beer after flying

Howdy M.P. is that pacer the one from the airborne mag and if so how does it fly ? I take it you like these engines and have had good luck with them . Did you get them from the importer here in Aus. Cheers the pope

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RE: 15cc Gas RCGF engine information thread - 7/30/2012 2:45 AM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		G'day Pope

yes got the motors from rcgf engines here in Australia nice bloke who runs the place

very pleased with the new beam mount

yes the pacer was built from the plans from the old rcme mag

she flies A1 I have had this one for 12 years modeled on the real full size

that I once had and used in a mustering business that I had

John

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RE: 15cc Gas RCGF engine information thread - 8/1/2012 4:11 AM   
edge540purple


 

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From: Melbourne, AUSTRALIA
Status: online 		Hi Mario from RCGF Engines Australia here. I have a 15cc in a Seagull Pilatus PC-6 and my brother has a 15cc in a Hanger 9 Piper Pawnee, boyh fly great, have a look at pictures on rcgfenginesaust.com

How do i upload pictures on here??????

Mario

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RE: 15cc Gas RCGF engine information thread - 8/1/2012 4:50 AM   
musterpilot



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From: CoolgardieWestern Australia, AUSTRALIA
Status: offline 		G'day Mario

When you post scroll down and you will see

click here to upload images and files

John




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