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Search: Posts Made By: Sport_Pilot
Showing results 1 to 25 of 312
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Forum: Glow Engines
07-14-2017, 09:05 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Check some of the stunt web sites and forums. ...

Check some of the stunt web sites and forums. Better custom made needles are available.
Forum: Glow Engines
06-07-2017, 10:26 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Pretty sure any movement you see at idle is the...

Pretty sure any movement you see at idle is the motor mount, airframe, and wheels flexing, not the motor housing.
Forum: Glow Engines
05-15-2017, 09:25 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Was that on their site. I could not find this. ...

Was that on their site. I could not find this. But lots of used engines, with more used Fox engines than normal. And some excess Mac's pipe stuff.
Forum: Glow Engines
05-12-2017, 07:24 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

I suspect that in the future all glow engines and...

I suspect that in the future all glow engines and maybe very small gas engines will be custom built. Just as older models are laser cut on custom orders. Engines may even have computer printed...
Forum: Glow Engines
04-13-2017, 08:22 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

I believe they are making nothing anymore. ...

I believe they are making nothing anymore. Company closed it doors and nobody answers the phone. No Fox company not even making industrial parts anymore.
Forum: Glow Engines
12-13-2016, 07:53 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Dave, Are those the high compression or low nitro...

Dave, Are those the high compression or low nitro heads on those? Or are there some that are low nitro and others that can tolerate nitro?
Forum: Glow Engines
11-09-2016, 12:50 PM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Lou is right, you really cannot compare. There...

Lou is right, you really cannot compare. There is no feedback in RC and any connection you seem to have is psychological.
Forum: Glow Engines
10-24-2016, 09:41 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Ok, Well really I have not worn out but one...

Ok, Well really I have not worn out but one engine. Most of my experience with ball bearings are on cars but the load is mostly radial and a loose wobbling bearing always has some axial looseness as...
Forum: Glow Engines
10-24-2016, 08:23 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

OK I had it backwards in my mind somehow. I do...

OK I had it backwards in my mind somehow. I do not believe you can have much axial play without some radial play because both are from looseness of the balls in the race. So I believe IQwkSport's...
Forum: Glow Engines
10-24-2016, 03:41 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

This would help axial play? I know what you...

This would help axial play? I know what you describe would help thrust play, and maybe axial play.
Forum: Glow Engines
10-01-2016, 08:12 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

I disagree most will spin 15,000 my TT only spins...

I disagree most will spin 15,000 my TT only spins about 14,000 and I think the LA is the only current engine and it spins the same as TT.
Forum: Glow Engines
09-30-2016, 07:39 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Older high performance Fox's do require lots of...

Older high performance Fox's do require lots of nitro. Older .15 require about 20 to 30% and newer about 15 to 20% depending on prop and altitude.
Forum: Glow Engines
09-23-2016, 06:49 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Ok the older version show up more often. They...

Ok the older version show up more often. They are not as powerful and carbs not as good. I think they had a .20 version of the same engine for a while.
Forum: Glow Engines
09-23-2016, 06:34 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

The Fox is a very good .15 Ball bearing engine...

The Fox is a very good .15 Ball bearing engine with more power than a OS FP or LA. But it is iron piston on iron sleeve so all castor fuel. One of the best twin needle Fox carbs.
Forum: Glow Engines
09-23-2016, 05:38 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

That's a bit small for a Novel powered trainer. ...

That's a bit small for a Novel powered trainer. Here is a more typical version.

http://ironsidemodels.com/st5he1trrcba.html

The older trainers which were sized for the reed valve Baby Bee and...
Forum: Glow Engines
09-23-2016, 05:32 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

HOB Texan is same a Global Texan and it is 44". ...

HOB Texan is same a Global Texan and it is 44". And it is a fast .20 sized model often used in sport pylon racing. The size is a modern engine size because it came out in the 80's or 90's when most...
Forum: Glow Engines
09-23-2016, 04:47 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

A lot of 1/2a models are 40" span, those made for...

A lot of 1/2a models are 40" span, those made for a Norvel are larger than that. I have a Global T6 that is 44" and it is a .20 size, but many flown with a .15. A trainer type .15 is about 48" -...
Forum: Glow Engines
09-21-2016, 08:47 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Never had a Fox with poor fit other than some had...

Never had a Fox with poor fit other than some had loose needles. But when Fox went out of business they had an excellent carb with Teflon sealed needles. My Fox .50 does have the old style needles...
Forum: Glow Engines
06-30-2016, 08:59 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Smile Well I guess you don't have to worry about...

Well I guess you don't have to worry about forgetting to knock on wood for a while.
Forum: Glow Engines
06-28-2016, 03:59 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Varied results, but not great. Iron alloys such...

Varied results, but not great. Iron alloys such as low carbon steel, leaded steel, and cast iron only vary about .0005 in/deg F.
Forum: Glow Engines
06-27-2016, 11:13 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Not a heck of a lot of variation between the iron...

Not a heck of a lot of variation between the iron alloy's. Mostly because all but the stainless steels and expensive alloys are all mostly iron. Where as aluminum allows might have as little as 50%...
Forum: Glow Engines
06-27-2016, 07:24 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

The high silicon aluminum does expand less than...

The high silicon aluminum does expand less than most other aluminum alloys in fact all but beryllium alloyed aluminum. Most silicon aluminum alloy's have a slightly higer expansion rate than most...
Forum: Glow Engines
06-27-2016, 05:52 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Sorry but aluminum expands faster than brass and...

Sorry but aluminum expands faster than brass and ABC liners keep or nearly keep their clearance as they expand. Iron sleeves and pistons get looser as they expand not ABC.
Forum: Glow Engines
06-27-2016, 03:53 AM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Yes and the aluminum piston has a slightly higher...

Yes and the aluminum piston has a slightly higher expansion rate. With iron on iron the expansion rate is the same but that means the larger object expands more than the smaller so the almost 0 gap...
Forum: Glow Engines
06-26-2016, 07:23 PM
Replies: 5,192
Views: 569,096
Posted By Sport_Pilot

Lapped engines are more prone to compression loss...

Lapped engines are more prone to compression loss when overheated than ABC engines. In fact that is why ABC engines were invented,. Many a time I have had a Fox Stunt engine barely running because...
Showing results 1 to 25 of 312
 
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