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New Evolution Engines!! 15GX, 20GX, 33GX

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Old 04-29-2013, 07:06 AM
  #51
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

I have a discontinued Great Planes Super Decathlon 40 kit on the workbench that I was going to put a new, discontinued O.S. FS 70 Surpass in because it would be an original engine that was available when the kit was made.  However I am now thinking I might get the 15GX and put it in instead.  I am at the point in the build where I need to get firewall mounting, servo location, cowl cutting figured out.  Will the 15GX fit in the cowl of this plane?  When are complete dimensions going to be published?  When are engines going to be available?
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Old 04-29-2013, 07:48 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Daytonarc,

The complete dimensions can be found in the manual for the 15GX here:
http://www.horizonhobby.com/pdf/EVOE15GX-Manual_EN.pdf

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Old 04-29-2013, 07:49 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Gentleman,

Unfortunately we missed our April 28 date by about 10 days on the shipment of the 10, 15, 20 and 33cc engines. They are currently being airfreighted to us now and we expect to be able to start shipping around May 10.

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Old 04-29-2013, 08:19 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX


Quote:
ORIGINAL: Pete Bergstrom

Daytonarc,

The complete dimensions can be found in the manual for the 15GX here:
http://www.horizonhobby.com/pdf/EVOE15GX-Manual_EN.pdf

Pete

Thanks Pete,

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Old 04-29-2013, 08:20 AM
  #55
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX


Quote:
ORIGINAL: daytonarc


Quote:
ORIGINAL: Pete Bergstrom

Daytonarc,

The complete dimensions can be found in the manual for the 15GX here:
http://www.horizonhobby.com/pdf/EVOE15GX-Manual_EN.pdf

Pete

Thanks Pete,

How much fuel will the 15GX burn at WOT for a 10 Minute flight?
The 15GX worst case burns 0.6 oz per minute WOT - more likely a little less as it gets broken in. So at most 6 ozs for a 10 minute flight.

Pete
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Old 04-29-2013, 08:30 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Pete,
Are the specs correct in that the 15cc is almost 10 ounces heavier than the 10cc  and only 2.5 ounces lighter  than the 20cc ?


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Old 04-29-2013, 08:35 AM
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Quote:
ORIGINAL: flyinwalenda

Pete,
Are the specs correct in that the 15cc is almost 10 ounces heavier than the 10cc and only 2.5 ounces lighter than the 20cc ?
Yes - the specs are correct. Please remember there is a significant case size difference between the 10cc engine and 15/20cc engines. The 10cc engine is buillt into a 46 size case while the 15/20 cc engines are built into larger 61-91 size cases, with mlarger bearings (one of the greatest adders of weight to an engine) larger crankshafts (steel adds weight) and they both have a steel liner.

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Old 05-10-2013, 03:19 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

I see the 15GX is shipping, hoping to see mine next week at some point. Looking forward to reading others findings on this engine on here once they start coming in!
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Old 05-11-2013, 08:30 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

The 15cc and 33cc engines started shipping Friday May 10. The 20cc engines are not ready yet but we'll keep everyone posted. 

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Old 05-11-2013, 09:57 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Pete,

Are there any videos these engines running?
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Old 05-13-2013, 07:29 AM
  #61
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

duba duba duba duba duba duba duba duba waaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

haven't found any videos yet here... but I'm told that is what it sounds like.
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Old 05-13-2013, 07:46 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

The small gas two stroke engines sound just like their  equivalent displacement glow two stroke engines do.
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Old 05-13-2013, 08:19 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Subscribed. Waiting on my 15gx too. Looking forward to new stuff this year.
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Old 05-13-2013, 02:19 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Ours came in today.
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Old 05-13-2013, 02:31 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

The 15 and 33 are coming in tomorrow and the 20 in a week or two.
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Old 05-16-2013, 12:53 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Well, they are real....!

less compression than the 10GX, can tell that immediately.... other than that looks like a big 10
GX....



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Old 05-16-2013, 12:59 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

^^ Don't forget, the 15 is a ringed piston and the 10 is an abc so it will "feel" different. As the 15 breaks in the ring expands and contracts and it will "fit" into the liner. Then it will seal properly and you will notice a difference in the "feel" of compression.
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Old 05-16-2013, 01:23 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Drool....
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Old 05-16-2013, 01:56 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

I got mine. Will probably power up this weekend.
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Old 05-16-2013, 02:25 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

I took off this afternoon to be here for UPS to sign for the shipment, but UPS updated they had weather problems and delivery was delayed until tomorrow. I'm expecting both the 15 and 33.
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Old 05-16-2013, 03:34 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Pete,
I'm planning on using a 8oz tank. I usually set my timer for 10 minute flights with a little left over for reserve. Any idea how long 8oz will give me?
Edwin
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Old 05-16-2013, 04:40 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Yeah,

My comment on "less compression" wasn't meant to be good or bad. I think my main thought was whenI bought the 10gx i struggled to turn it over without a prop on it. The compression on the engine was very high. With the 15gx it turned over pretty easily.

Again, I didn't mean it to sound as if it was a bad thing... Hoping to get htis engine mounted and running this weekend as well.





Quote:
ORIGINAL: flyinwalenda

^^ Don't forget, the 15 is a ringed piston and the 10 is an abc so it will "feel" different. As the 15 breaks in the ring expands and contracts and it will "fit" into the liner. Then it will seal properly and you will notice a difference in the "feel" of compression.
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Old 05-16-2013, 04:51 PM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX


Quote:
ORIGINAL: Edwin

Pete,
I'm planning on using a 8oz tank. I usually set my timer for 10 minute flights with a little left over for reserve. Any idea how long 8oz will give me?
Edwin
Estimate .5 oz per minute full throttle once broken in... So 15 minutes easy for general flying.
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Old 05-17-2013, 03:46 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

Warren's estimate is spot on. 1/2 oz per minute for planning purposes at WOT.

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Old 05-17-2013, 07:08 AM
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Default RE: New Evolution Engines!! 15GX, 20GX, 33GX

will wait for ASP versions
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