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Search: Posts Made By: gsmith6879
Showing results 1 to 13 of 13
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Forum: Gas Engines
01-03-2011, 11:58 AM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

Based on my experiences with the 15cc engines on my Bronco and watching my buddy's H9 Pawnee fly on 4 stroke, I would say it should be a good engine for this airplane. The engine runs great and...
Forum: Gas Engines
12-31-2010, 02:00 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

I had a similar problem. It turned out to be the cheap spark plug they ship with these engines. When I installed an NGK CM-6 the problem went away. Try the Dielectric grease and the NGK plug.
Forum: Gas Engines
08-07-2010, 07:59 AM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

I have 2 of these little engines on a Bronco. They are not power houses but they should pull the Telemaster well. Use one of the better rated props (Zoar, JFX, Top Fight Power Point, etc) to get...
Forum: Gas Engines
06-27-2010, 10:42 AM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

I have been flying my Bronco with the 2 15cc engines for the past few weeks and continue to be very impressed with the performance and reliability. They are still far from being fully broken but it...
Forum: Gas Engines
06-07-2010, 06:50 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

The bare engine weighs about the same as the equivalent glow engine. When you add the ignition, switch, and battery pack, you are going to get almost a pound extra. Bottom line, more weight, less...
Forum: Gas Engines
06-07-2010, 02:19 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

These numbers are from the 2nd post on this thread. I got these numbers on the first tank of 91 octane gas on Penzoil air cooled 32-1. I used Pe Reviers' Thrust calculator for the thrust values. So...
Forum: Gas Engines
06-06-2010, 04:00 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

From my experience with these 15cc engines on my Bronco, I would strongly recommend that you try a Xoar, JFX, or Top Flight Power Point 14x8 or 15x6 prop. I think you will be surprised how much...
Forum: Gas Engines
05-18-2010, 07:42 AM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

Depending on the prop, a 15x8 may be a bit much for the 15cc.

I was getting these numbers with the stock muffler, 32:1 premium gas/no ethanol, Penzoil air cooled oil, and not broken in:

...
Forum: Gas Engines
05-05-2010, 09:21 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

I'm probably the only guy flying these engines on a twin. I'm flying the Uravitch 81" Bronco. I posted the results of my first flight 3 weeks ago. I was able to get back out today and make 4 more...
Forum: Gas Engines
04-09-2010, 01:13 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

Performance report.

I finally got a chance to fly my Uravitch Bronco with the RCGF 15cc engines today. I had tested a number of props but chose the Master Airscrew 14x7 3 blade because of the...
Forum: Gas Engines
02-13-2010, 05:14 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

I bought 2 of these little engines from David at Gas RC Hobby Engines to put on my new Uravitch 81" Bronco. His support and service is great. I had custom mufflers built by Bisson and rotated one...
Forum: Gas Engines
02-09-2010, 11:13 AM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

I don't have 14x4W. I think the 14x4W would not be enough prop for this engine. I do have a 15x4W. I ran it on one of the first engines and got the best performance of all props I tried using Pe's...
Forum: Gas Engines
02-08-2010, 07:29 PM
Replies: 608
Views: 197,821
Posted By gsmith6879

RE: 15cc Gas RCGF engine information thread

Henry,

With the right prop I got the 9.46 static on the new engines. This new engine is not a powerhouse compared to a good glow engine and it is heavier. But is producing more than 8 pounds....
Showing results 1 to 13 of 13


 
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