Glow Engines Discuss RC glow engines

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Old 12-02-2018, 04:25 AM
  #38101  
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Originally Posted by Rudolph Hart View Post
Not me dave dang it! good numbers or no it's like going back to church and sitting through a whole hour of fire and brimstone preaching...

Aw, come on Pete you just need to spread your wings and diversify a little.
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Old 12-02-2018, 09:24 AM
  #38102  
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Default Saito 1.15

I finally had the chance to use my Saito 1.15. I mounted it on a Phoenix Turbo Beaver. After 40 minute break in it turns a master airscrew 15x8 a 9000 rpm. Nice transition from a low idle. It shakes a little at low idle but seems to be improving. Overall its as nice as any other Saito I have run.
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Old 12-02-2018, 10:22 AM
  #38103  
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It looks like it belongs there, good job.
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Old 12-03-2018, 12:10 AM
  #38104  
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fa115 with the same spinner that needs a polish,the plane needs a quick fly to blow the dust off it.

Originally Posted by c550 View Post
I finally had the chance to use my Saito 1.15. I mounted it on a Phoenix Turbo Beaver. After 40 minute break in it turns a master airscrew 15x8 a 9000 rpm. Nice transition from a low idle. It shakes a little at low idle but seems to be improving. Overall its as nice as any other Saito I have run.
I like the look of that plane but especially the colour scheme.Did the engine standoff come with the kit or did you make it and i see you use a turbo header muffler that looks polished compared to mine.I hav'nt used that style of mas prop yet but your figures sound good.On the old style mas classic (see pic) i got around 9000 peaked.Do you have any pics with the cowl in place?
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Old 12-03-2018, 12:15 AM
  #38105  
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Originally Posted by Hobbsy View Post
Aw, come on Pete you just need to spread your wings and diversify a little.
Ok the wings are spread.

Last edited by Hobbsy; 12-07-2018 at 07:35 AM.
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Old 12-03-2018, 08:28 AM
  #38106  
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I have a pic but it wont upload
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Old 12-05-2018, 04:07 AM
  #38107  
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Originally Posted by Captcrunch44 View Post
Happy thanksgiving everyone
dido Dave.
Here ya go Mike, 180 exhaust threads per RC Specialties: Specifications

Length: 3 3/16"
Diameter: 15/16"
Mounting Clearance: 1 5/16"
Weight: 1.71 oz
Thread: 14x1 mm
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Old 12-05-2018, 04:12 AM
  #38108  
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Originally Posted by c550 View Post
I have a pic but it wont upload
Click Go Advanced, then Manage Attachments, then Browse Your Device, then whatever folder your pictures are in and then Upload. That should do it, If not let us know what happened, Thanks

PS, give it a few seconds to do each thing.
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Old 12-05-2018, 06:47 AM
  #38109  
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I get this pop up after a minute:

Alert

The image could not be uploaded.
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Old 12-05-2018, 07:08 AM
  #38110  
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Originally Posted by c550 View Post
I get this pop up after a minute:

Alert

The image could not be uploaded.
Have you tried downsizing the picture?
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Old 12-05-2018, 10:51 AM
  #38111  
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Resizing seemed to do it. Thanks.
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Old 12-05-2018, 11:56 AM
  #38112  
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Nice bird c550!
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Old 12-05-2018, 05:24 PM
  #38113  
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On the FG break in, it takes an hour. First 10 minutes at WOT 4000 RPM, then increase the top end gradually. The break in directions are in the manual with the engine and they work well. Do not be surprised though for A. it takes forever to use up a tank of fuel and B. not a lot of oil comes out of the breather or exhaust. I have an FG11 that was in a T-Clips, plenty of power to fly it, but since it has such a slow transition to full power, it caused a stall I could not recover from that a normal glow Saito of the same displacement would have. I could fly for an hour on 12 ounces of gas in that plane, and had very little clean up afterwards.

When I broke mine in I was concerned that the 20:1 wasn't enough oil as the breather and exhaust was dry, so mixed it 16:1 and was satisfied with that. I eventually got to 20:1 after the next gallon, but considering it flew an hour on 12 ounces, that first gallon took forever to be used up. I have 3 gallons through it after 4 years or more of flying.

I now have it in my LT-40 and it flies it great, hangs off the prop nicely, and flies it much better than the OS 52 that I had on it, even with the added weight.
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Old 12-06-2018, 03:58 AM
  #38114  
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Great picture C, glad you got it done.

AC, are you running the 13 x 7 or other prop, I was going over my FG 11 yesterday and noticed that it has copper gaskets on the rocker cover screws and a tiny bit bit sealant squeezed out of the crankcase to cylinder joint and the cam cover joint. The glow versions don't seem to get that kind of sealers. It has some really serious compression, when turning with my thumb and forefinger it takes nearly a half minute to leak enough to get it turned. It's a fun engine. I run a CH Ignition unit at 7.4 volts. Adrian has the 7.4 volt option check marked on it.
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Old 12-06-2018, 06:52 AM
  #38115  
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Originally Posted by acdii View Post
On the FG break in, it takes an hour. First 10 minutes at WOT 4000 RPM, then increase the top end gradually. The break in directions are in the manual with the engine and they work well. Do not be surprised though for A. it takes forever to use up a tank of fuel and B. not a lot of oil comes out of the breather or exhaust. I have an FG11 that was in a T-Clips, plenty of power to fly it, but since it has such a slow transition to full power, it caused a stall I could not recover from that a normal glow Saito of the same displacement would have. I could fly for an hour on 12 ounces of gas in that plane, and had very little clean up afterwards.

When I broke mine in I was concerned that the 20:1 wasn't enough oil as the breather and exhaust was dry, so mixed it 16:1 and was satisfied with that. I eventually got to 20:1 after the next gallon, but considering it flew an hour on 12 ounces, that first gallon took forever to be used up. I have 3 gallons through it after 4 years or more of flying.

I now have it in my LT-40 and it flies it great, hangs off the prop nicely, and flies it much better than the OS 52 that I had on it, even with the added weight.

Sorry to hear about the stall. I do a LOT of flying doing tight maneuvers at low speeds, just off the ground. That transition issue with gasoline in general plays a large part in my preference for methanol fuel! So important to have that well-tuned, crisp response. I would rather clean oil from a plane than clean up a crashed plane from the field.
How did you like the T Clip? I almost bought one but did not trust the covering job with the black fingers facing forward. I always try to lap the covering edges rearward. Been thinking about buying one anyhow and simply re-covering it.
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Old 12-06-2018, 08:21 AM
  #38116  
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Originally Posted by Hobbsy View Post
Great picture C, glad you got it done.

AC, are you running the 13 x 7 or other prop, I was going over my FG 11 yesterday and noticed that it has copper gaskets on the rocker cover screws and a tiny bit bit sealant squeezed out of the crankcase to cylinder joint and the cam cover joint. The glow versions don't seem to get that kind of sealers. It has some really serious compression, when turning with my thumb and forefinger it takes nearly a half minute to leak enough to get it turned. It's a fun engine. I run a CH Ignition unit at 7.4 volts. Adrian has the 7.4 volt option check marked on it.
I will have to check, but I think it was a 12x6 APC.

Originally Posted by Jesse Open View Post
Sorry to hear about the stall. I do a LOT of flying doing tight maneuvers at low speeds, just off the ground. That transition issue with gasoline in general plays a large part in my preference for methanol fuel! So important to have that well-tuned, crisp response. I would rather clean oil from a plane than clean up a crashed plane from the field.
How did you like the T Clip? I almost bought one but did not trust the covering job with the black fingers facing forward. I always try to lap the covering edges rearward. Been thinking about buying one anyhow and simply re-covering it.
It took a bit to learn how to take off straight due to it being so short coupled, but once off the ground was a thrill to fly. What I did was use the low rudder rate on takeoff and that cured it. Once off the ground I switched back to high rates and have fun with it. The covering is on very good and did not have any issues with peeling. They use Oracover/Ultracote on it and is very well done.

I had 3 years of flying on it, but had not flown it very much when I crashed it that year. I was so used to the easy stall characteristics of the Something Xtra and recovery that I made the simple mistake of trying to do a Harrier, and instead of the usual drop of nose, it dropped a wing and went into a spin that I could not get out of. By the time the engine was up to full and just starting to pull the plane out, it ran out of sky. Thankfully hit hit wings level and nose first so damage was only to the forward fuse. I have it rebuilt but with a different engine on it now. Still have to open the cowl up a bit and put a needle extension on.

Here it is during break in, was running about 20 minutes at this point


Near the end of break in, still on the same tank of fuel an hour later



Couple years later along with my 1/5th scale SIG Cub



Aftermath of the dumb mistake. In front of those two pieces of wood is a hole from the prop hub that is about an inch and a half deep. It hit and bounced back.

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Old 12-07-2018, 12:56 AM
  #38117  
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Originally Posted by Hobbsy View Post
Click Go Advanced, then Manage Attachments, then Browse Your Device, then whatever folder your pictures are in and then Upload. That should do it, If not let us know what happened, Thanks

PS, give it a few seconds to do each thing.
Dave could you give me directions so i can alter a previous post? and i'd like everyone's thoughts on throttle transition of gas fg saito's compared to the methanol fa series.My experience has been that there is no difference in throttle up between an fg and an fa...any thoughts??
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Old 12-07-2018, 04:14 AM
  #38118  
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Thanks Pete, just hit the EDIT button and have your way with it.

The FG11 I have transitions exactly the same as a glow engine, there would no reason for it not to unless the carb was not tuned correctly. That's my take based on my experience.
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Old 12-07-2018, 06:01 AM
  #38119  
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The Glow ones do throttle up to full power quicker than the gas ones. The FG11 I have is well tuned and is smooth from idle to full, but side by side my 72 will hit peak RPM just a bit sooner then the FG-11. Glow is better for more power though, and that is where mine failed for pulling the T-clips out of the spin in time. Had it been glow, there is a good chance I could have pulled it out in time. I did find the prop, it was a 13 x 6 APC on the FG at the time, same that I use on the 72.
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Old 12-07-2018, 08:41 AM
  #38120  
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Originally Posted by acdii View Post
The Glow ones do throttle up to full power quicker than the gas ones. The FG11 I have is well tuned and is smooth from idle to full, but side by side my 72 will hit peak RPM just a bit sooner then the FG-11. Glow is better for more power though, and that is where mine failed for pulling the T-clips out of the spin in time. Had it been glow, there is a good chance I could have pulled it out in time. I did find the prop, it was a 13 x 6 APC on the FG at the time, same that I use on the 72.
I totally agree with that. Given two similar engines, one with with higher specific output, the higher output engine will spool up faster. The broader, more tolerant fuel ratio acceptance range of alcohol fuel is another contributing factor. I almost converted my FG-11 to methanol but simply traded it for a new Saito FA-82.

I like the T-Clips, it has a lot of the same elements present in the Toledo Special. That is a fantastic plane to hot dog around! Now you did it, I am ordering a T-Clip

Last edited by Jesse Open; 12-07-2018 at 08:43 AM.
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Old 12-07-2018, 09:17 AM
  #38121  
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I may consider converting the FA-100 to CDI in my Cub. It drinks glow like a drunken sailor on 6 month shore leave. It is a blast to fly with the 100 though, takes off like an F-15 on full burner.
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Old 12-07-2018, 10:23 AM
  #38122  
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Originally Posted by acdii View Post
I may consider converting the FA-100 to CDI in my Cub. It drinks glow like a drunken sailor on 6 month shore leave. It is a blast to fly with the 100 though, takes off like an F-15 on full burner.
What prop are you running on the 100, 100's are pretty good on fuel usually.
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Old 12-07-2018, 10:43 AM
  #38123  
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Evolution 15 x 6. Gave it scale speeds at just above idle, and pure unadulterated OOMPH at WOT. The wing struts would sing. It has a 10 ounce tank though, so good for maybe 6-8 minutes unless I just putt around below half throttle, but that leads to dead sticks eventually.
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Old 12-07-2018, 10:48 AM
  #38124  
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If it slowly dies at half throttle the LS needle must be too rich and it's drowning the plug slowly. That's my take anyway. The 15 x 6 is a good choice though.
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Old 12-07-2018, 11:09 AM
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It is more like 1/4 throttle and just putting along. I think it just cools down too much from the head sticking out so far. It is twice the engine the 1/5th Cub needs after all!
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