Hobbsy

My Feedback: (102)

Thanks gents, Saitos look mighty fine upright though. I wouldn't have a problem with that.

The113.1 engine weighs about 625 pounds without flywheel housing which is part of the rear casting.

the Wasp

My Feedback: (1)

Pete, does that mean some of them will show us their undies if we ask ???


Jim

Rudolph Hart

Dave just a friendly query...90% of the rc planes i can think of would look weird with an upright saito mounting, can you post some examples of what you fly? personally i think they run better on their sides and almost as well inverted. Although i never run spark ignition i imagine it would make the whole thing easier, especially at idle an low rpm.

ps jim shoosh, i manage to get myself in trouble without help most times

Jesse Open

Hobbsy

My Feedback: (102)

Yeppers, no idea of the weight, the only thing I left in the block was the cam.

Hobbsy

My Feedback: (102)

LASER 70


LA 25 and Saito 30


Saito 62 with 12 x 6 three blade.

Captcrunch44

Hobbsy

My Feedback: (102)

Yep, all that weight for 13 hp. I rolled it over and Dad promptly got rid of it and we never had anything smaller than a Super C after that.

That 180 sure has some serious compression and it does not leak down.

Glowgeek

Pretty clear you're not a 3D or Xtreme aerobatic flyer, otherwise you would understand the benefits of 4 pitched props, especially for the small/mid sized saito engines. That's pretty much all we use for 3D with engines for 40 size 3D planes. Once you get up to 60 sized aircraft 5 pitched or even 6 pitched props can work well for 3D if the engine has big enough nuggets. Prop diameter for torque: prop pitch for speed is an undisputable rule we must all adhere to. You can't argue with physics. Burn all the props you want.

Your own testing of an FG11 shows it will turn a 13x6 close to 9100 rpm, that's why I suggested a 14x4 to increase torque so acdii could prop hang.

Jesse Open

Not really close to 300 pounds actually. Without the head, crank, pistons and rods, pan, undressed, closer to the short side of 1/2 that The A engine was a frequent visitor to the shop for overhaul.


I like to mount Saitos on their side, inverted, and in between, at 45 degrees down . The 45 down works real well in many installations and often permits the exhaust to exit right at center at bottom The last time I upright mounted was a Saito 56 in a Four Star 40 about 25 years ago. When That Saito was replaced with a YS 53, It was inverted.

Old workhorse, Toledo Special


Lonnie, Thanks for the video comment

Glowgeek

Agreed, 45° down angle works great. Almost all of the Phoenix Models 46-55 size ARFs are set up for that config already. Now, with a 15° exhaust adaptor I can run that killer muffler you sent me on my my Pheonix Models 342 Sbach/HC FA82 combo and have a real hucker. No hurry Gary. This post is about the benifits of 45° down angle mounted engines: not a prod at you brother.

By the way, I'll be running a Vess 15x(firewood) prop on my HC FA82 thank you very much.

Hobbsy

My Feedback: (102)

I have never mounted an engine at 45 degrees down from horizontal, up yes. Those Vess are cool looking props.

Lonnie, it was not my intention provoke you, honest.

Jesse Open

Interesting note, the muffler on the Toledo is a modified YS Magnesium body. I welded the inlet bung in at a different angle and re-bent the Saito steel exhaust tube. The YS body was fitted with a new, larger tail with a larger OD, longer length outlet tube.
Getting pretty tired, need to build another Toledo Maybe this winter I can scratch build one. Scale it up to an 80 inch wing and run a Satio 125!

Glowgeek

Is the Toledo from a Kit or ARF Gary?

Dave, are you kdding? I'm not that shallow but 46-55 sized Xaero and 3D is where I spend most of my time, I will defend my position. 4 pitched props get'r done for 5.5 - 6 lb. planes of that type.

Jesse Open

All aluminum mount, relocated vent to cam cover.
Lonnie,

The Toledo was an ARF, a good one too! I have been drawing up plans to build another, same size. A larger one could be in the offing as well. I really like the plane for it's wide flight envelope and good manners.
Here is a pic of the flip side of the Saito 82 installation. BTW, it flys well on a 56 or 62 if you are so inclined

Glowgeek

Yeah Gary, H9 makes some Great Planes, pun intented. For that mattter Great Planes makes some great planes too. I was just looking at how precise the wind screen and cowl fits and how smooth the covering appears. Very nice aircraft prep for sure. Of course that engine mount and gusset system is sweet too!

acdii

I have 3 H9 planes, P-47, Twin Otter, and Funtana 90s. They are pretty well made. Now the Top Flite P-51, different story, gear mounts rip out on the first landing, covering is all wrinkled, and the elevator has a twist to it. Now if I can get the Saito 125 to run, I might fly the Mustang again now that I worked the quirks out of it.

Hobbsy

My Feedback: (102)

Your position is just fine, it's just not mine and that should be OK with everyone.

Glowgeek

Funny, I've always perferred my TF warbirds over my H9's. Just goes to show, you never know what'll come out of china.

FlyerInOKC

My Feedback: (6)

I think it is the luck of the draw when it comes to ARFs built in China. You have so much variance in quality and workmanship even in the same factory.

Captcrunch44

acdii

Please return the Stewardess to the upright position [/Carlin]

The P-47 is a nice flyer, only got two flights though before a building leaped out and slapped a wing. I have it repaired, but want to put new servos in before I fly it again. I don't trust the MPI I have in it. The P-51 flies nice, now, after repairing it after it high speed stalled into a half loop and took out some soybeans. Found out the crash was due to using high rates on the elevator. The plane is very snap happy if given too much elevator. When I flew it last with the 125, a high speed pass was very realistic with the doppler coming off the prop.

Jesse Open

The Saito 125 is a horrible engine! I will do you a HUGE favor and send you a brand new Saito FA-100 and $75 as a lucky day for you, trade

IIRC , the Toledo Spl was made in Viet Nam.

acdii

LOL, Somehow you giving me a brand new engine AND $75 does not make me think it is such a bad engine. I just have a hard time getting it started, but once running, it pulls the Mustang around nicely. I tore it down and re-gapped the valves, cleaned the carb, replaced the o-rings, but have not had time to see if it will run.

Jesse Open

Ok, make that a slightly used FA-40 and twenty bucks, you pay shipping both ways!

I have a starting drill from cold that works well. No fooling, the Norwegian Princess can even start it, usually on first flip (Back flip. that is).

Two or three forward flips at full throttle, no glow. Close throttle to high idle and flip reverse once. Now apply glow power, grasp prop firmly with (Heavily) gloved hand and feel the "bump" on compression. Reverse turn the prop to the backside of compression and backflip firmly (Glove still in place). Usually starts right now!
In reserve is the good old Sullivan with a piggyback Dewalt 20 volt Lithium. The FA-125 is a bit different from most Saito but a real sweetheart once you know her