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Old 07-27-2021, 04:48 AM
  #50826  
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Originally Posted by Vincent
Hi i just picked up a new FG 40 for my Seagull Models Stuka. What size prop would be good to start with.
thx
Due to the lower rpm range that these big Saito singles run at you'll need a 10" prop pitch to provide the speed needed to fly a warbird. I would try a 19x10. If peak rpm on the ground exceeds 8000, try a 20x10.

Last edited by Glowgeek; 07-27-2021 at 04:55 AM.
Old 07-27-2021, 04:51 AM
  #50827  
1200SportsterRider
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Continuing on from Sunday PM, yesterday I made an adapter to pull the rear bearing into an FA 40a.

Old 07-27-2021, 05:23 AM
  #50828  
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Nice job Dave.. They work pretty well with an arbor press too.
Old 07-27-2021, 05:55 AM
  #50829  
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Originally Posted by Jesse Open
Nice job Dave.. They work pretty well with an arbor press too.
I need to look into one of those, Thanks
Old 07-27-2021, 06:47 AM
  #50830  
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Check out Harbor Freight for a nice arbor press,
Old 07-27-2021, 07:18 AM
  #50831  
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Hey David what do you think? I thought I would try the muffler on for size.
Old 07-27-2021, 10:18 AM
  #50832  
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Originally Posted by Glowgeek
Due to the lower rpm range that these big Saito singles run at you'll need a 10" prop pitch to provide the speed needed to fly a warbird. I would try a 19x10. If peak rpm on the ground exceeds 8000, try a 20x10.
ty!!! i ordered a few 19x10 props to start.
Old 07-27-2021, 12:04 PM
  #50833  
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Originally Posted by FlyerInOKC
Hey David what do you think? I thought I would try the muffler on for size.
Let us know what you think of the sounds, Thanks. I'll take a crack at another muffler in a couple of days.

I made another bearing press for 65's and 80's.

A correction is needed, the 80's front bearing is not metric, it measures: .38" x .88" x .28.

Last edited by 1200SportsterRider; 07-27-2021 at 04:29 PM. Reason: Add content
Old 07-27-2021, 06:03 PM
  #50834  
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Originally Posted by Jesse Open
Oh, I am wondering about the mine or a friend's part of the question

Yes,I wish someone would offer that plane as well as the Toledo Special again. Even in kit form.https://youtu.be/vEgfhDne4FM
Garry,
well, I didn't know it was yours, I don't remember you ever talking about it or if you posted a photo of it. and I like that plane a lot. that's all

Jim
Old 07-27-2021, 06:26 PM
  #50835  
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Jim,

Yea, had one before this one. It had a Saito FA-130T. This one first had an FA-125 then I used an FG-20 that I converted to methanol but kept the sparky ignition.
I had posted several pics a couple years ago when I was making th 5/8" 90 degree, 6" long aluminum swept pipe exhaust. Posted that video about the same time.







The swept tube exhaust 5/8\" OD mandrel bent hard tube with 9mm outlet in Dragonlady . Aluminum clad firewall.
They look great in the air smoothly sweeping thru the old pattern type maneuvers. I would like to scale it up to run my old Gemini.



Gary


The pipe tryout, It was fitted with a reducer to 9mm before it was installed in the plane.

Last edited by Jesse Open; 07-27-2021 at 06:49 PM.
Old 07-28-2021, 08:41 AM
  #50836  
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Originally Posted by Jesse Open
Jim,

Yea, had one before this one. It had a Saito FA-130T. This one first had an FA-125 then I used an FG-20 that I converted to methanol but kept the sparky ignition.
I had posted several pics a couple years ago when I was making th 5/8" 90 degree, 6" long aluminum swept pipe exhaust. Posted that video about the same time.

Are the triangle blocks for mounting the cowl? Or maybe vibration damping?
Old 07-28-2021, 06:24 PM
  #50837  
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Originally Posted by Jesse Open
Jim,

Yea, had one before this one. It had a Saito FA-130T. This one first had an FA-125 then I used an FG-20 that I converted to methanol but kept the sparky ignition.
I had posted several pics a couple years ago when I was making th 5/8" 90 degree, 6" long aluminum swept pipe exhaust. Posted that video about the same time.







The swept tube exhaust 5/8" OD mandrel bent hard tube with 9mm outlet in Dragonlady . Aluminum clad firewall.
They look great in the air smoothly sweeping thru the old pattern type maneuvers. I would like to scale it up to run my old Gemini.

Gary
https://youtu.be/dWEDPNMMMH8


The pipe tryout, It was fitted with a reducer to 9mm before it was installed in the plane.

Garry, you say you had the 130 in it, what is the span on it, it must be a larger plane than my friends, as I remember my friends was a 60 size plane ?????

thanks for the video, I love the popping these engines make

Jim
ps hey guys, I hate to say, it was a sad day today, Dusty Hill bass guitarist of ZZTop has passed at 72
Old 07-28-2021, 07:11 PM
  #50838  
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They did offer that bird in 2 sizes
Old 07-29-2021, 06:19 AM
  #50839  
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Originally Posted by triumphman49
They did offer that bird in 2 sizes

Yep, the larger being the "60 two stroke / 120 four stroke " size. I had figured the FA-130T would work well. It was actually a struggle from start to finish. Dual elevator servos tail mounted and a custom brass tailwheel mount helped balance the Saito brick. The Dragonfly gear were long enough to utilize a 15 inch prop. The plane came out quite heavy for the 68 or so inch wing.

Obviously too much! The next Dragonlady found a better match with the FA-125 Saito .
The only other Dragonlady I have seen at our field had a Saito 150; too much imho but he was happy!

My one and only FA-130T

No mine





Gary

Last edited by Jesse Open; 07-29-2021 at 06:22 AM.
Old 07-29-2021, 06:49 AM
  #50840  
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Gary, did the cam driven air pump work good enough to keep the crankcase evacuated of excess oil on the 130T?
Old 07-29-2021, 07:57 AM
  #50841  
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I got to say the twin are gorgeous to look at but I can't see one in my collection anytime soon. I do have a 1/4 scale Globe Swift that was designed for a FA-230 I think. I was leaning toward a large bore single cylinder to keep the costs down.
Old 07-29-2021, 05:00 PM
  #50842  
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Originally Posted by Jesse Open
Yep, the larger being the "60 two stroke / 120 four stroke " size. I had figured the FA-130T would work well. It was actually a struggle from start to finish. Dual elevator servos tail mounted and a custom brass tailwheel mount helped balance the Saito brick. The Dragonfly gear were long enough to utilize a 15 inch prop. The plane came out quite heavy for the 68 or so inch wing.

Obviously too much! The next Dragonlady found a better match with the FA-125 Saito .
The only other Dragonlady I have seen at our field had a Saito 150; too much imho but he was happy!

My one and only FA-130T

No mine
Gary
mm I don't remember the span being that long, never the less a good size

Jim
Old 07-29-2021, 05:12 PM
  #50843  
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Well, I was going by memory, so just to be sure, since we are being held to avery high standard,
I looked it up in the official instructions.
The span is not 68 or 69, it is considerably less, 66 inches is more like it.
"The plane came out quite heavy for the 68 or so inch wing."
Of course there was also the far more commonly seen 40 size Dragonlady, it had an even smaller wing. I wont bother to guess how much smaller. (52")


Major error, good catch. Certainly 66" is not close to 68"
The larger Dragon Lady has a 66 wingspan, requires a .60 to .90 2 stroke or .80 to 1.2 4 stroke and requires 4 channels to operate.


Gary


Last edited by Jesse Open; 07-29-2021 at 05:34 PM.
Old 07-29-2021, 06:07 PM
  #50844  
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Originally Posted by FlyerInOKC
I got to say the twin are gorgeous to look at but I can't see one in my collection anytime soon. I do have a 1/4 scale Globe Swift that was designed for a FA-230 I think. I was leaning toward a large bore single cylinder to keep the costs down.
The FA-220 36cc (Zeus) may be a good choice for it, with a 3 blade prop for ground clearance. 50cc 2 stroke gassers have been used in the 1/4 scale Globe Swift but that's overkill for scale flying a 20-22 lb plane imo. For scale flying a 35-40cc 2 stroke gasser would be my choice of engine for it because I tend to shy away from large high dollar 4 strokes.
Old 07-30-2021, 03:16 AM
  #50845  
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https://photos.app.goo.gl/ivpEApLp7M6JVkwX9These sound a little better Lonnie. Drags around a 24 pound bipe faster than it can think. Just off idle fly byes with a mas 24/10. " like a sharp dressed man"
Old 07-30-2021, 05:35 AM
  #50846  
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Nice one, Saito FA-450 R3


Sure beats a stinky weedwhacker!
https://photos.google.com/share/AF1Q...U5QVk4STJsRGhn

Last edited by Jesse Open; 07-30-2021 at 05:58 AM.
Old 07-30-2021, 12:57 PM
  #50847  
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Ready to go for Sunday or Monday!

Curtis P-40, 86" wing, 16 pounds RTF, Rohm Air retracts. Taking along 3 gallons fresh homebrew 14% nitromethane /12% Klotz Super Techniplate. Hope to convert at least 2 gallons of marvelous methanol to much needed CO2.



Saito FA-180, on methanol fuel
. Doing our share to grow more balsa


Gary
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Old 07-30-2021, 01:51 PM
  #50848  
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I recently purchased a Saito FG-20 online. It was reportedly N.I.B. and when I received it, I concurred, it had not been previously run.
I mixed up a gallon of 20:1 using Amsoil Dominator and 95 octane methanol-free gas. 16x6 prop.
After several short burps of HAND starting the engine and having it burn out the prime, it finally kept running.
Throttle was set to approx. 3000 rpm.

Although I wasn't timing it, probably 20 seconds of running, and the engine STOPPED abruptly.
Attempting to restart by hand, the engine would NOT TURN OVER a complete revolution. It was binding and also making a troublesome metal on metal sound
Pulling the back plate revealed the bottom end of the rod was "egg shaped." It had been pounded out by the crankpin and also had contacted the insides of the crankcase.
I sent the engine in to Horizon for assessment and repairs. While I know Saito offers a 3-year warranty, I was well-aware this applies ONLY to the original purchaser.
I was also painfully aware the engine was older than 3 years and now OUT of production.

I accompanied the engine with a complete description of what happened, also mentioning that I have NEVER encountered such a problem with ANY engine (and I have run HUNDREDS over 50 years) and that my Saito glow and gas engines had been particularly wonderful performers. My most recent Saito gas engines (purchased new from Horizon) have been a 61cc twin and 90cc radial, BOTH superb running engines.

To my shock and amazement, Horizon chose to WARRANTY replace my engine with a new FG-21!
They did say this was a "one time thing"... but that's OK.
Now THAT is GREAT customer service
Old 07-30-2021, 02:02 PM
  #50849  
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Good on you Some folks are plain freebie magnets!
Old 07-30-2021, 02:51 PM
  #50850  
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Horizon Hobby was under no obligation to help but took care of you anyway? Great hear Richard! Some people have all the luck.

The FG21 has a better carb too......bonus! I heard the FG21 was upgraded to bronze valve seats as well but I haven't verified that on my three FG21's.

Last edited by Glowgeek; 07-30-2021 at 02:53 PM.

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