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Old 09-18-2018, 02:59 AM
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[QUOTE=Hobbsy;12463578]

Helpful studs
Originally Posted by Rudolph Hart
Thanks for pointing that out jim,must have been in one of those coulda coulda should a woulda moods.

Thanks dave QUOTE]
Welcome Pete

A couple of my little helpers.
Dave that looks like a coupla crashes i seen at the field
Old 09-18-2018, 03:33 AM
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Yeah, when you're working on an engine or a plane you end up buried in tools, it will be nice to have the rain stop so I can run the 120 triple and the 100 I just fixed up.
Old 09-18-2018, 04:26 AM
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Default Sorry,ugly motorcycles handy ;) Will an old transmitter do?


Originally Posted by Rudolph Hart
Yeah the water beads are normal on the intake tube at those temps,nice engines i like the bent wire/tube engine stand.Can you post a pic of a lanyu prop?
The tubes on twins get really wet!

Sure will post pics of the "Lanyu" when I get home. Very nice props with a scale-like flair.They pull very well. Make a very stout load for the Saito 150 . The fellow usually shows up at the Toledo show in the spring. I plan to buy a pile of them this year, which means he probably won't show!

https://microphoneprojects.shutterfly.com/pictures/5

Last edited by Jesse Open; 09-18-2018 at 12:43 PM. Reason: Added pic of Lanyu prop
Old 09-18-2018, 07:08 PM
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hey Pete,see the video I found, "just idling" it sounds like a monster !!

Old 09-18-2018, 11:59 PM
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Originally Posted by Jesse Open



The tubes on twins get really wet!

Sure will post pics of the "Lanyu" when I get home. Very nice props with a scale-like flair.They pull very well. Make a very stout load for the Saito 150 . The fellow usually shows up at the Toledo show in the spring. I plan to buy a pile of them this year, which means he probably won't show!

https://microphoneprojects.shutterfly.com/pictures/5
The red and white wire is rc servo leads? you should get in touch with barry (blw) i think he's in to ham radio and doing up old valve radios.Is that some kind of morse key set up?
Old 09-19-2018, 12:03 AM
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Originally Posted by the Wasp
hey Pete,see the video I found, "just idling" it sounds like a monster !!

https://youtu.be/ZTANL0Pj4eg
It is jim,i see you are well on the way to recovery pard,watch the vid a few more times and two stroke heli's will just be a distant memory...fore ya know it you'll have an fa115/125 in the mustang.Makes the after flying beers taste heaps better

ps the peak figure for the fa115 looks low
Old 09-19-2018, 01:55 AM
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Originally Posted by Rudolph Hart
The red and white wire is rc servo leads? you should get in touch with barry (blw) i think he's in to ham radio and doing up old valve radios.Is that some kind of morse key set up?
Jim should have a FA-115 at the door very soon now
That servo wire on the telegraph key has a plug for the side tone oscillator I sometimes use to monitor what is going out.
Been doing valve only ham radio since 1961 when I first got into ham radio. I am always repairing or restoring ham gear. Sometimes the transmitters are rather large ranging from old WWII military radio to commercial broadcast transmitters . A couple years back I shipped a BC-610 , WWII transmitter to a museum in Spain. Tipped the air freight scales at 770 pounds all crated . When conditions are good talking to your neck of the woods is not uncommon. The last time it was as station in Tasmania.

Last edited by Jesse Open; 09-19-2018 at 04:34 AM.
Old 09-19-2018, 04:45 AM
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Originally Posted by Rudolph Hart
You might consider leaving the kadets mike and up your social standing
But then I could claim a lack of experience when accidentally I buzz the smart alecks in the pits!!!
Old 09-19-2018, 07:23 AM
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Originally Posted by Hobbsy
Some of you may find this interesting, the bore and stroke for the 120 R-3 triple and for FA 40a are not the same as, one would think. It would be interesting to know the reason.

Saito FA 40a
Bore===22mm
Stroke=17.4mm

Saito 120 R-3
Bore===22.4mm
Stroke=16.2

The Saito 100-T and the 50 single have the same bore and stroke
Bore===23.4mm
Stroke=19.0mm
Stroke is shortened so the rods can clear the casing in the radial config. Did you crack it open and look to see if there is a master rod and two shorter connecting rods?
Old 09-19-2018, 10:07 AM
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Yes, the articulated rod employs a master rod. In this case a rather bulky one.
Old 09-19-2018, 10:25 AM
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Originally Posted by Rudolph Hart
It is jim,i see you are well on the way to recovery pard,watch the vid a few more times and two stroke heli's will just be a distant memory...fore ya know it you'll have an fa115/125 in the mustang.Makes the after flying beers taste heaps better

ps the peak figure for the fa115 looks low
yes recovery feels good LOL
I tell you what, because it has the 125 Jug I am thinking the 115 is going to be too tight in my VQ P-40, if so I have no problem putting it in the Mustang,

as for the engine's RPM in the video, it has a wood prop, I'm betting it's pulling a lot of air, I know on my Magnum 180 FR (thank god it's gone) the Zoar 17X8 pulled 800 RPM less than the APC 17X8, and the Zoar 17X6 pulled 200 less than the APC, the APC pulled 8850 (peaked),, those Zoars sure do pull a lot of air,

hey Pete you know what would be just coolest, that is if Saito made a 110 or 120 Flat 4 Cylinder, that would be the cats tail right there, I would have to buy one !

Jim
they say "no" means "yes",, then maybe you shouldn't if the answer is "yes"
Old 09-19-2018, 10:32 AM
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Gary, I will be needing your street address soon LOL

Dave, is that the 90T in your photos ??

Jim
Old 09-20-2018, 01:10 AM
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Jim i wish saito would make a gas 200cc like this...look up 'maiden flight p51 galloping ghost' on you tube,make sure you watch the whole vid.I'd buy that engine in a heartbeat.

Originally Posted by FlyerInOKC
But then I could claim a lack of experience when accidentally I buzz the smart alecks in the pits!!!
Mike revenge is a dish best eaten cold i'd wait till dave finishes his pawnee and borrow it.You could load the hopper with some dried and ground up seagull poo,should look like topdressing super phosphate when it rains down on your friends.
Old 09-20-2018, 04:22 AM
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Lol!
Old 09-20-2018, 07:35 AM
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Originally Posted by the Wasp
Gary, I will be needing your street address soon LOL

Dave, is that the 90T in your photos ??

Jim
Yes sir, it looks like this now.
Old 09-20-2018, 04:57 PM
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posted by Dave, Yes sir, it looks like this now.
boy that sure is snazzy, love the stacks with out the taper, they add more character, I wish I had something to trade for it heehee

Jim
Old 09-20-2018, 05:04 PM
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Pete, I saw that video before, way back, I will have to watch it again ! thanks for posting that

now I'm wondering what that OS Inline 4 sounds like

Jim
Old 09-20-2018, 05:25 PM
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Saito 80T
Old 09-21-2018, 02:10 AM
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Honda 250cc six called the rc 166 racing engine from 1966,made 65hp when period british 650 twins made 40hp,and they were quick bikes in their day.Killed the competition and revved to 20,000 rpm way back then,you can hear one running on you tube.Jim my point is that our model multi cylinder engines only sound scale at idle,re the os300il i've heard one at the strip in a gypsy moth,it barely flew it.You need big cylinders and a longer stroke to sound good at higher rpm which is why i like how the kolm engines sound in flight at higher rpm,makes your hair stand on end.Saito making something like that is on my bucket list.

Originally Posted by Hobbsy
Yes sir, it looks like this now.
Dave would sawn off .22 brass do the job? on those inlet stacks.We've just had our first sniff of summer here after a long wet winter.

Last edited by Rudolph Hart; 09-21-2018 at 02:16 AM.
Old 09-21-2018, 02:32 AM
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Thanks Jim You never know.
Pate, I'll have to measure them, I know that the ID is the same as the original, I drilled the carb inlets for a tight push into the carb body lubed with Red Loc-Tite.
Old 09-21-2018, 03:46 AM
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I made a mistake in post 37576, the engine is the Saito 1.30 twin, before painting. Sorry
Old 09-21-2018, 03:48 AM
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Probably closer to a .30 Carbine brass,
Old 09-21-2018, 04:02 AM
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Originally Posted by Rudolph Hart


Honda 250cc six called the rc 166 racing engine from 1966,made 65hp when period british 650 twins made 40hp,and they were quick bikes in their day.Killed the competition and revved to 20,000 rpm way back then,you can hear one running on you tube.Jim my point is that our model multi cylinder engines only sound scale at idle,re the os300il i've heard one at the strip in a gypsy moth,it barely flew it.You need big cylinders and a longer stroke to sound good at higher rpm which is why i like how the kolm engines sound in flight at higher rpm,makes your hair stand on end.Saito making something like that is on my bucket list.



Dave would sawn off .22 brass do the job? on those inlet stacks.We've just had our first sniff of summer here after a long wet winter.
That is the same thing I have tried to point out often. OS and Saito boxers often sound a lot like two stroke singles at operating speeds. The odd fires do sound a bit different.
That little Honda 250/6 was making some HP at that but the numbers alone don't always win races against the bigger bikes on the road course.
I had the "joy" of rebuilding a couple of the Honda 1000cc 6 cylinder heads. Little 15 or 16mm valves, 24 of them. All were of course 3 angle grinds on the seats! Just about the smallest valves that the old Souix valve face grinder could handle. Looked like a three row corn picker going down the road. But it was fast for it's day!
The Benelli "Sei" was an unabashed copy of the Honda. Our local BSA/Benelli dealer, Mr Earl Buck had one of the Benelli Sei. At 350 pounds, he made it look small.
Sure wish I could find a Benelli Sei today.
Earl Buck's shop was about 2 miles from here. He really tore up the 74 inch class AMA hill climb with his 45 inch BSA!

http://www.motorcyclemuseum.org/hall...px?RacerID=138

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Old 09-22-2018, 08:02 AM
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82 bucks for this rod

Originally Posted by acdii
Stroke is shortened so the rods can clear the casing in the radial config. Did you crack it open and look to see if there is a master rod and two shorter connecting rods?
Thanks AC, no sir I haven't done anything except set the rocker lash and give the internals a shot of Corrosion X through the vent.

Here they are:

Last edited by Hobbsy; 09-22-2018 at 08:09 AM.
Old 09-22-2018, 09:42 AM
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Like we said earlier, the bore to stroke and rod length drive these decisions- That rod is quite a bit of work in the making. Still, at $85 a copy, I may be tempted to make my own if I happened to need one. One of those parts that make for a fun project.

The 120 radial should be a lot of fun on the right plane. Probably close to an .82 single, power-wise.Maybe you will CDI this one?

Jim, keep an eye out for the mail truck early next week.

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