acdii

Good. I have OBG on mine, didn't want to have to deal with jacks and cables and finding the right battery and all that stuff, plus it shares the battery for the retracts, and uses LiFe. Better that than dead weight.

Hyjinx

That's cool. Who makes the obg unit?
Running on a life would be a plus. My buddy wants one for a Saito radial he is running obg on.

acdii

Crain Engineering - Glow Plug Drivers

Works quite well too.

FlyerInOKC

My Feedback: (6)

Nice! They got a version for any kind of battery you want to use.

Glowgeek

On Board Glow Driver:

"Something you have to buy when using OS multi-cylinder engines"

the Wasp

My Feedback: (1)

Glowgeek

Interesting vid Jim. Did a search on the Goodyear F2G Super Corsair and appears a few of the 10 made were used for air races. As I'm not truly found of the F4U Navy Blue color scheme it looks like I may go for this F2G color scheme.

1200SportsterRider

Very nice, you just reminded me of a US Aircore Colt 40 I have NIB, I flew one with a SuperTigre 51 Davis Diesel conversion. One of the easiest planes to land I ever owned. If and when I build this one it will get a Saito 56. It will be a tricycle.

Hyjinx

Must be this little OS gem didn't get the message Lonnie.
if the link works anyway⚒️

Glowgeek

Suspicious looking wires attached to the glow plugs. Am I to assume it's your engine and the glow driver is turned off? I'll believe you if you say so.

Either way it sounds Sirius-ly awesome!

Cougar429

My Feedback: (3)

1200Sportster, yes, the carb it attached to the rear cover with only one fastener. There is no choke assy, though, and the LS needle has a thumbscrew.

So far I found it looks like my 56 is remarkably close in dims and the gasket set, pushrod covers and some other bits would be compatible. The carb ran before he dunked it so hopefully requires nothing beyond clean up.

Hyjinx

The wire loom is for initial glo lighting with a large nicad or nickel ( depending on temperature) . Just plugs in and pull after starting.
I run all my everyday radials with this set up. Currently a Saito R 450, a Saito FA 325 five cly, a OS FR300 five cyl and a Evolution 7-77. All four the same system. All idle and fun without glo on 15/15 fuel



Basically the same set up as the oem manuals indicate.
I did check the Crain product. Looks like a good system. Only a four clyinder set up max offered? Maybe use two for more clyinder applications in series or something.
I think a German company makes a similar unit but also only offered up to four cylinders also.
I tried several systems in the past, but found them unnecessary ultimately. And I am not a fan of electronics I don't care to use the batteries in general.
Jus me tho....

Glowgeek

Where's the "totally jealous" emoticon when I need it? Slobber, slobber, drool, drool. I need to go change my shirt.

Are you able to get OS twins to idle without glow power? I've had 3 of them through my shop in the last couple of months and none of them will. Saito twins, no problem.

Hyjinx

My OS and Saito twins both run at idle and are reliable also Lonnie. Same system in singles thru triples years ago at Toledo Aldon Kelly, (manufacturer of Merlin Glow Plugs) encouraged me to allow at least thirty seconds of lighting prior to starting. He explained that with the glow plug system, better results are obtained by heating the head and upper combustion chamber before attempting to start. That has been my method combined with fuel and tuning. All about the same.

Glowgeek

Thanks Aaron, could it just be the OS twins weren't broken in far enough to idle without glow power? All three had excellent compression, no intake tract leaks, OS "f"plugs and a fully leaned lsn after about 80 ounces of 15% nitro fuel run through. Still, a cylinder would flame out after about 10 sec of idling on both fs120 Gemini-1 twins. The fs160 Gemini twin was better, taking about 30 sec to drop a cylinder. Hmmmm.

acdii

My Gemini 120 purrs like a kitten without GP assistance. I know eventually the 120R3 will as well, but will still use it for starting it, right now it will idle about 2100 without OBG, 1700 with it. What I like, no plugs or loose wires to connect to that mar the lines of the plane. Bad enough I have 3 switches sticking out underneath. I will have it shut off at just under 1/3rd throttle and eventually have it off just above idle for starting. I'm still working out where to put the refueler and crankcase vent.

Hyjinx

Frustrating that is! The one in the pic is pretty loosie goosie, but runs strong. May be light for this old spacewalker hulll my buddy picked up cheap. I tanked a Christian Eagle I was running it on last summer. Couldn't wait to get it off the shelf and in the air again. Specs say it will fly. But on the low end of power. Probably be very prop specific .
Good clean fun 👍

Hyjinx

It dosent matter where they end up . That is one beautiful plane you have created and labored on. It is stunning in pictures. I hope you can film a flight or two and post.
A low and slow with a three or four blade prop is going to bring tears to the eyes of any Veterans in attendance.
WaitMaybe a victory roll.
That's the ticket!

Glowgeek

Don't want to go too far OT but is your fs120 a Gemini-1 or Gemini-2? Quite a bit of difference in the induction on those two.

Hyjinx

​​​​​​The former. Old as dirt. It's on a H9 1/4 scale cub.
Had it on a pietenpol camper for a while.
It's not currently in rotation at the field.

FlyerInOKC

My Feedback: (6)

And now for something completely different...

Pink Saitos and Panthers rule! Everything else just drools!

modeltronics

My Feedback: (27)

looks great!

Hyjinx

Fuels pink That count?

modeltronics

My Feedback: (27)

I remember snow like that when I lived in Illinois. I think I will stay in Texas.

Hyjinx

[QUOTE=modeltronics;12662042]I remember snow like that when I lived in Illinois. I think I will stay in Texas.[/QUOTe
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