Saito FG-60R3
09-17-2019, 09:34 PM
#2478
Join Date: Jan 2007
Location: Dubai, UNITED ARAB EMIRATES
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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
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
09-18-2019, 12:12 PM
#2481
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?
09-18-2019, 01:19 PM
#2482
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����������
09-18-2019, 07:17 PM
#2483
09-18-2019, 08:45 PM
#2484
Join Date: Jan 2007
Location: Dubai, UNITED ARAB EMIRATES
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What blades do you have on it now? They look like 22x10's?
09-18-2019, 09:35 PM
#2485
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
Brian
09-18-2019, 11:29 PM
#2486
Join Date: Jan 2007
Location: Dubai, UNITED ARAB EMIRATES
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Ground testing is always just a bit of a gauge, but is useful to know if you’re in safe territory and is a good start point.
what happens in the air is a different story. I’ve found that in my application, the engine likes a bit more pitch, and I think it’s 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 it’s 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 doesn’t always help...
the varios are great because you can change pitch to suit until you find a happy compromise.
what happens in the air is a different story. I’ve found that in my application, the engine likes a bit more pitch, and I think it’s 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 it’s 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 doesn’t always help...
the varios are great because you can change pitch to suit until you find a happy compromise.
09-19-2019, 12:42 PM
#2489
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
For now I’m dead in the water until an ignition shows up. I will update then.
Brian
09-22-2019, 09:59 AM
#2490
Join Date: Feb 2004
Location: Doncasteryorkshire, UNITED KINGDOM
Posts: 13
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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
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
09-22-2019, 10:54 AM
#2491
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.
09-22-2019, 08:05 PM
#2492
My Feedback: (6)
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
I think I posted this info a few pages back.....
Sparky
09-26-2019, 11:28 AM
#2494
Senior Member
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.
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.
09-26-2019, 12:08 PM
#2495
My Feedback: (18)
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.
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.
09-27-2019, 02:04 AM
#2498
Join Date: Jan 2007
Location: Dubai, UNITED ARAB EMIRATES
Posts: 500
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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.
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.