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Saito FG-60R3

Old 09-17-2019, 07:58 PM
  #2476  
raptuck
 
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Will the ch ignitions work for the 60r3?
Old 09-17-2019, 08:00 PM
  #2477  
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My Don Smith Tigercat
Old 09-17-2019, 09:34 PM
  #2478  
cathurga
 
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That is fantastic! I wish I had the skills to build something like that!

If you have some video, and a youtube account, just shove the video on there, and then post the link here. I would LOVE to see that in the air, and taxiing etc. Beautiful, well done!

The CH-Ignitions will work fine, Adrien is a top bloke, and has been doing this for years. He might even be able to make a custom timing curve for you. Best you give him a call.

Regards, Andy
Old 09-18-2019, 10:39 AM
  #2479  
757jonp
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That's one good lookin plane there.. I'd get a stiffy just listening to it idle! LOL
Old 09-18-2019, 11:46 AM
  #2480  
cathurga
 
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I know, right. You know what would finish that plane off nicely....? Is a set of Varioprops with 3 blades....soooo, good!
Old 09-18-2019, 12:12 PM
  #2481  
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That’s a great idea, tried a 20-10, 3blade carbon belia prop on my P-47, wasn’t impressed, could only get 5400 rpm and barely dragged the 47 off the ground and was a dog in the sky. What are people using on these?
Old 09-18-2019, 01:19 PM
  #2482  
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I did get the video I have on YouTube, search First run on Tigercat, John Doe. Not sure how to put link on here! As in few posts back, need grandkids here to do this����������
Old 09-18-2019, 07:17 PM
  #2483  
ForcesR
 
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Originally Posted by raptuck View Post
I did get the video I have on YouTube, search First run on Tigercat, John Doe. Not sure how to put link on here! As in few posts back, need grandkids here to do this����������
raptuck, here you are where you can be seen by interested FG60R3 owners.

Old 09-18-2019, 08:45 PM
  #2484  
cathurga
 
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Originally Posted by raptuck View Post
Thatís a great idea, tried a 20-10, 3blade carbon belia prop on my P-47, wasnít impressed, could only get 5400 rpm and barely dragged the 47 off the ground and was a dog in the sky. What are people using on these?
We are using a 4-blade Vario on a SeaFury, the Vario blades are odd sizes, and I think we have the 18.1 or 18.8" blades on it. I will need to double check when I get a chance. Obviously as a 4-blade, it needs to be smaller, but we have the pitch up around 12-13" if I recall. It turns 5400rpm on the ground, but unloads to 7200rpm in the air. The higher pitch seems to suit the engine better than lower.

What blades do you have on it now? They look like 22x10's?
Old 09-18-2019, 09:35 PM
  #2485  
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Yes I am running Falcon 22-10 carbon props, a couple days after the video I had it on a fish scale and was getting 42lbs pull on the props. After balancing the cat was 57 lbs, should be all right. I did try some 22-9 props but they were turning 6700 on the stand, figured that was a bit too much. I was getting 6200 on the 10 pitch props.

Brian
Old 09-18-2019, 11:29 PM
  #2486  
cathurga
 
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Ground testing is always just a bit of a gauge, but is useful to know if youíre in safe territory and is a good start point.
what happens in the air is a different story. Iíve found that in my application, the engine likes a bit more pitch, and I think itís Didier on here that is flying a bearcat on a 21x12 that works well too.
I know a lot of people try to get as much rpm out of their engines as possible, and higher speeds, but sometimes itís better to have an engine in its power band and comfortable with a lower rev, but higher pitch. It means taking longer to get up to speed, but once a plane is at its happy velocity, adding more rev doesnít always help...
the varios are great because you can change pitch to suit until you find a happy compromise.
Old 09-19-2019, 03:04 AM
  #2487  
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Just had a look at the video, with headphones on, ...way cool! Sounds awesome....now the big question.....how much is it? LOL!
Old 09-19-2019, 05:24 AM
  #2488  
elmshoot
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Great looking Tiger Cat, For prop I'm using the Xoar 23-10 WW2 military prop so it looks the part at 6100RPM.
Sparky
Old 09-19-2019, 12:42 PM
  #2489  
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Thanks Sparky, It’s been a long haul.Cathurga, you really don’t want to know the costs. If my sponsor ever found out, she probably would murder me or want her half out of it������������.
For now I’m dead in the water until an ignition shows up. I will update then.

Brian
Old 09-22-2019, 09:59 AM
  #2490  
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Hi All,
I posted a few pages ago that I was a new owner. My engine has the Morris mini motors Ignition and intake mods. It has had 1 litre of fuel through it on a test stand restricted by the main needle to 4000 rpm and then 5 10-15 minute flights, open cowled on a test model. I haven't fully tuned to max rev but it's up to 5500 when flat out. (Quite rare when flying.
All has gone well so far except that when starting, especially the first start, it seems very reluctant to fire and needs a fair hammering with a starter.
Is this because there is no choke fitted?.
I really like to hand start my engines but for the first start this would probably take ages.
Does anyone else find that this is a problem?? Is there a way around it?
Thanks all
stu k
Old 09-22-2019, 10:54 AM
  #2491  
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If you can’t choke it, I blow on the tank vent and open the throttle wide and flip the prop 7-8 times then close the throttle and flip it a few more strokes without the pressure on the tank. Turn on ignition and a couple flips later it usually starts.
Old 09-22-2019, 08:05 PM
  #2492  
elmshoot
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If you fuel the tank through the fuel line to the Carb via a T. The line is filled with fuel and mine starts up 4-9 flips first out. In fact I have to drive my carb fully close to keep fuel from dripping from the carb when I'm fueling. Something other pump carbs don't do like the Walbro carb.
I think I posted this info a few pages back.....
Sparky
Old 09-23-2019, 03:57 AM
  #2493  
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Thanks guys, I'll give your suggestions a try.
Old 09-26-2019, 11:28 AM
  #2494  
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Hello guys,

What kind of battery does everybody use for there ignition?
I use a 2S 2000mAh lipo battery unregulated for my ignition but since I have problems with my ignition, there is a discussion if 2S lipo is to much battery.
The manual says from 6-9V, so it seems that the 2S lipo is a perfect battery for it.
Old 09-26-2019, 12:08 PM
  #2495  
GalenB
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Originally Posted by Didier View Post
Hello guys,

What kind of battery does everybody use for there ignition?
I use a 2S 2000mAh lipo battery unregulated for my ignition but since I have problems with my ignition, there is a discussion if 2S lipo is to much battery.
The manual says from 6-9V, so it seems that the 2S lipo is a perfect battery for it.
Tech Aero IBEC set to pass through the voltage from the A123/LiFe batteries plugged into the receiver or power board... I have been running this combo for a couple of seasons on my 60 without any issues...
Old 09-26-2019, 03:07 PM
  #2496  
khoysagk
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Originally Posted by GalenB View Post
Tech Aero IBEC set to pass through the voltage from the A123/LiFe batteries plugged into the receiver or power board... I have been running this combo for a couple of seasons on my 60 without any issues...
Same here. Running this setup on all my gas engines.
Old 09-26-2019, 06:12 PM
  #2497  
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I have been running a 7.4, 3400 mil amp lithium ion unregulated for my ignition battery since I started playing with these things.
Old 09-27-2019, 02:04 AM
  #2498  
cathurga
 
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I use a TechAero BEC in my planes and simple 5A regulator on the test bench. I know the manufacturer (Saito/Rcxel) say you can use straight LiPo on them, but I tend to regulate all power through the systems, its simple a sensible practise.

Not enough good can be said about the TechAero BEC, they just WORK. Its nice not having to worry about a seperate battery, ignition is controlled from the Tx and the power is regulated as well. Its just a nice unit.
Old 09-27-2019, 06:10 AM
  #2499  
elmshoot
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LiFe 2200 MAH for ignition power.
Sparky
Old 09-27-2019, 09:37 AM
  #2500  
757jonp
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A123 2 cell 2500 from Hangtimes Hobbies (NoBS batteries) Do I get a prize in the battery contest? LOL

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