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Everything Radial Engines

Old 08-07-2013, 06:16 PM
  #3601  
blw
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Mac users could use the Unix equivalent in Terminal mode.
Old 08-11-2013, 09:21 PM
  #3602  
RichardGee
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First flight of my Evolution 9-99...

http://www.youtube.com/watch?v=pokS9FLb8Wg
Old 08-15-2013, 11:27 PM
  #3603  
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Beautiful! ) That engine looks like it's made for it.
Old 08-20-2013, 12:45 PM
  #3604  
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New !
160ccm Rotary Engine for 1/3 chale WW1 Warbirds coming soon.

http://www.youtube.com/watch?v=ehAZfiP2z1w&feature=youtu.be Armin
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Old 08-20-2013, 01:05 PM
  #3605  
retransit
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Anyone have a napkin? I can't stop drooling.
Old 08-20-2013, 01:43 PM
  #3606  
hooker53
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That's German craftsmanship right there. Thing never moved a MM. Perfect Bal. would be great in a big WW 1 bird. Also used almost no fuel.
Old 08-21-2013, 06:56 AM
  #3607  
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Originally Posted by radial1951
...I recently ordered a spark kit for my 200R3 (in 68" SU-31). Adrian at CH Ignitions is making up one of his new 3 cyl CDI systems with 1/4x32 plugs to suit the 200R3. The plan is to run straight 82% methanol with 18% oil and NO nitromethane. The spark ignition should improve power due to accurate timing, fuel consumption will drop, and the idle will certainly be lower and more reliable. In other words, the spark will make up for the removal of the nitro. Well that's the theory and I can hardly wait.
Well I finally got the CH Ignitions kit for my Saito 200R3. The Post Office always seems to go at half speed whenever I am waiting for a package...

I must say I'm impressed with the look of this unit, very nicely made and finished. It even has a tacho output. The sensor holder is mounted using the front screws of the cam cover of No1 Cylinder. The magnet ring slips over the prop driver and the timing is set and locked with 2 grub screws. Basically a bolt-on job. Gee those 1/4x32 spark plugs are tiny.

Edit: Forgot to mention a big plus is being able to use anything from 4 x AAs to 2sLipo although Adrian has recommended a minimum 6v to be safe. I use 2S LiFe 6.6v 2600mAh flight packs (full charge at 7.2v) no need to regulate, the Rx and Servos are fine. So a second one of those for the ignition will simplify charging.

I hope to install it over the next week. The plan is to have a manual isolating switch for the battery and Tx controlled opto kill switch. Here are photos of the kit and the engine as it is now.

Regards, RossG.
radial1951
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Last edited by radial1951; 08-26-2013 at 05:27 AM.
Old 08-21-2013, 06:06 PM
  #3608  
hooker53
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Ross. This looks great. Would like to try one of those kits on my 450. Will wait for a video Mabey.
Old 08-21-2013, 08:54 PM
  #3609  
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I filmed this out at NAMFI 2013 at SMMAC Sams beautiful Folding wing corsair with a moki 250 in it..
http://www.youtube.com/watch?v=ERTe1bnuPck http://www.youtube.com/watch?v=dilWbM7w1lg Hope you guys like the sound of that !!
Old 09-03-2013, 05:14 AM
  #3610  
radial1951
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Default Saito 200R3 with CH Ignition

Ok, here's a few photos of the CH Ignitions system set up on my 200R3.

As you can see, the magnet ring fits over the prop driver hub and the sensor holder mounts using the cam box screws. A very neat setup.

The plug leads are plenty long enough to get the CDI unit well away from the engine. I'm glad I chose 120 degree plug sockets as they fit inside the diameter of the engine. The straight plug sockets would not have cleared the cowl of the SU-31.

A wooden blind slat came in handy as a platform to mount the control unit. You can just see the A123 2S ignition battery mounted below. Further below is the A123 flight pack. The ignition isolator is the automotive type rocker switch on the LHS of the fuze. This was previously for the on-board glow power.

It only needs the power connection, Rcexl Tacho and Opto Kill Switch mounted and she'll be ready for a test run. Oops, after the timing is set by adjusting the magnet ring to give the correct ignition advance. Test report to follow...

Regards, RossG.
radial1951
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Old 09-03-2013, 06:36 AM
  #3611  
SrTelemaster150
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Originally Posted by radial1951
Ok, here's a few photos of the CH Ignitions system set up on my 200R3.

As you can see, the magnet ring fits over the prop driver hub and the sensor holder mounts using the cam box screws. A very neat setup.

The plug leads are plenty long enough to get the CDI unit well away from the engine. I'm glad I chose 120 degree plug sockets as they fit inside the diameter of the engine. The straight plug sockets would not have cleared the cowl of the SU-31.

A wooden blind slat came in handy as a platform to mount the control unit. You can just see the A123 2S ignition battery mounted below. Further below is the A123 flight pack. The ignition isolator is the automotive type rocker switch on the LHS of the fuze. This was previously for the on-board glow power.

It only needs the power connection, Rcexl Tacho and Opto Kill Switch mounted and she'll be ready for a test run. Oops, after the timing is set by adjusting the magnet ring to give the correct ignition advance. Test report to follow...

Regards, RossG.
radial1951
_____________
Make sure you experiment W/ignition timing especially if you are retaining methanol based (glow) fuel.

My tests W/Saito engines have shown maximum power at around 34-35 degrees BTDC when using 15% Cool Power glow fuel W/C&H CDI.
Old 09-03-2013, 03:47 PM
  #3612  
radial1951
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Originally Posted by SrTelemaster150
Make sure you experiment W/ignition timing especially if you are retaining methanol based (glow) fuel.

My tests W/Saito engines have shown maximum power at around 34-35 degrees BTDC when using 15% Cool Power glow fuel W/C&H CDI.
Hi SrTele,

Thanks for that, just the sort of info this forum needs. I hope to be able to run straight methanol-oil mix, no nitro. That might need a bit less advance for the spark. I just got some Klotz KL200 which I will mix at about 18% to 82% methanol.

I don't understand the glow engine gas conversions that are running only 5% or less oil. Why don't they simply blow the conrod big end? Or do they wear out pretty quickly? The 450R3 doesn't even have a bronze bearing in the rod, it's just the alumin(i)um rod running on the crankpin. Works fine with 18% oil... Do you have any experience along these lines?

Have you got your 512R3 running yet? Photos would be good :-)

Regards, RossG.
radial1951
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Old 09-04-2013, 12:34 AM
  #3613  
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My 7-77 with a General Western Meteor Monoplane Crop Duster on a very blustery cold day....supposed to be spring
http://www.youtube.com/watch?v=XOuqBcWkmkU
Old 09-18-2013, 10:49 PM
  #3614  
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The C&H system looks fantastic....
want one for my saito 325 5 cyl.
Old 10-02-2013, 02:02 PM
  #3615  
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I had a great time today with the ASP 400 five cylinder radial engine powered GP PT-17 Military version Stearman. The maiden flights went very well and I finally got good flights and landings with this combination. I am like a kid with a new toy! The plane is not over powered but flies very well. It feels quite heavy (I have not weighed it) but still lands well. This is a great combination and I am now a happy camper. I am now looking forward to our annual War Bird event this comming Saturday to show off this plane.

Best wishes and good safe flying.



Heli-NuBee (AKA Roger the radial rabbit)
Old 10-03-2013, 05:21 AM
  #3616  
outacontrol41
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Originally Posted by Heli-NuBee
I had a great time today with the ASP 400 five cylinder radial engine powered GP PT-17 Military version Stearman. The maiden flights went very well and I finally got good flights and landings with this combination. I am like a kid with a new toy! The plane is not over powered but flies very well. It feels quite heavy (I have not weighed it) but still lands well. This is a great combination and I am now a happy camper. I am now looking forward to our annual War Bird event this comming Saturday to show off this plane.

Best wishes and good safe flying.





Heli-NuBee (AKA Roger the radial rabbit)
So.... I have an O.S. Sirius FR5 300 radial engine..... I've been looking for a nice scale model to put the engine in. Would a Great Planes Stearman be a good combo with this engine in your opinion. Are the ASP 400 and the O.S. similar in size and weight?
Old 10-03-2013, 05:23 AM
  #3617  
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Congratulations H.NB.
Old 10-03-2013, 07:08 AM
  #3618  
Heli-NuBee
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Hey Outacontrol41, there is another fellow who is using a OS 325 five cylinder radial in the same plane and he says it works well for him. (See this forum http://www.rcuniverse.com/forum/arf-...an-arf-23.html ) The only differance is he says he had to add 8 ounces of weight in the tail to balance and I had to add a full pound of lead in the tail to balance. That makes me think that the ASP 400 is probably a bit heavier than the OS engine. Your OS 300 should be fine in the GP PT-17 Military version Stearman.

Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)
Old 10-05-2013, 05:37 PM
  #3619  
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Go figure, My ASP 400 five cylinder radial engine in the GP PT-17 Military version Stearman outshined both my Saito 200 three cylinder radial and my UMS Evolution seven cylinder radial engine today at our annual War Bird meet. The three cylinder Saito in the Sea Fury. kept loosing a cylinder and the UMS seven cylinder lost power in a low camera pass causing me to put it down in a plowed field doing considerable damage to my BH Corsair. The ASP 400 ran strong all day. The ASP is the least expensive of the bunch but was best today. On the bright side, there was a fellow shooting some good video and I think he will share it with me in the near future.

Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)

Last edited by Heli-NuBee; 10-06-2013 at 08:05 AM.
Old 10-05-2013, 10:28 PM
  #3620  
outacontrol41
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Heli-NuBee....Thanks for the info!!!
Old 10-07-2013, 02:59 PM
  #3621  
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OK, I found out what happened to my UMS Evolution 7-77 seven cylinder radial engine on Saturday. The problem was not with the engine. The 4200 MAH nimh receiver battery failed causing the throttle to go into fail safe and a loss of some control of the ailerons. That battery only had two flights but did set for some time. It was charged a full 24 hours before flying but caused a rough/crash landing. I still need to inspect the engine further but one pushrod was lost and one pushrod was bent. I am not sure if there is any more damage to the engine but there was a lot of damage to the BH Corsair. What a shame that the receiver battery with so little use could cause such damage.

Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)
Old 10-14-2013, 05:13 PM
  #3622  
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Here are some pictures of my damaged UMS Evolution 7-77 radial engine powered BH Corsair.



Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)
Old 10-15-2013, 02:18 AM
  #3623  
Meesh
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Originally Posted by Heli-NuBee
OK, I found out what happened to my UMS Evolution 7-77 seven cylinder radial engine on Saturday. The problem was not with the engine. The 4200 MAH nimh receiver battery failed causing the throttle to go into fail safe and a loss of some control of the ailerons. That battery only had two flights but did set for some time. It was charged a full 24 hours before flying but caused a rough/crash landing. I still need to inspect the engine further but one pushrod was lost and one pushrod was bent. I am not sure if there is any more damage to the engine but there was a lot of damage to the BH Corsair. What a shame that the receiver battery with so little use could cause such damage.

Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)

With NiMH batteries you have to exercise them after they have sat for a while to wake them up. On the first charge you will always get a false peak. I lost a plane a few years ago because I thought the battery was topped off. I got 5 minutes into a flight and lost all control of the plane. It buried itself in a corn field and was a total loss. I hope your expensive radial is OK.

Bob
Old 11-14-2013, 09:22 AM
  #3624  
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I flew my Saito 200 R3 radial engine powered SeaFury again today. The engine ran great after making the adjustments suggested by Maxam (TOM). I had flown the 200 for a year and it had always run great until our annual war bird event about a month ago. The engine started dropping a cylinder at full throttle and changes to the high speed needle did not help. I sent Maxam a PM and he suggested that I richen the low speed needle and then readjust the high speed needle. I opened the low speed needle about 1/4 turn and then retunned the high speed needle. He was spot on again, the adjustment worked wonders with the engine and it is now running strong again without dropping any cylinders. IMHO, we are fortunate to have a resource like Maxam (TOM) to help with the learning curve on these radial engines. He has certainly saved me a lot of trouble in learning about model radial engines. Thanks Maxam (Tom) for your help, it is much appreciated.

On another note, one of our club guys was trying out his new camera and took some flying pictures of the SeaFury in action (see below). Please note that the plane is flying with the gear down because my E-Flite retracts have gone south on me. They worked great for about a year and then failed. I can't seem to figure out why they only work sometimes and I got tired of damaging the plane and cowl by landing gear up in the dirt, so I just fly now with the gear down. My friend also took some short video shots but for some reason, I have been unable to upload those videos to YouTube. I will keep trying and maybe someday I will actually have some flying video posted.

Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)
Old 11-14-2013, 09:25 AM
  #3625  
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OK, sorry guys, I seem to be having some kind of problem with the computer because I could not upload the flight pictures either. I will have to find the problem and post pictures later.

Heli-NuBee (AKA Roger the radial rabbit)

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