RE: Welcome to Club SAITO !
New members: 456 mc6390 457 Hibrass 482 Robbidos 483 rtn9105 484 Biggles2 485 RockyJones 486 longflyer 487 extra-nut 488 maineflyer Welcome. Bill. Moderator removed paragraph that no longer applies
Posted on: 1/21/2007 6:56 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5301500

RE: C-119 Flying Boxcar ARF
[b]Rod: The pilot was Paul Mantz, he was killed while doing a "Filler" shot that was neither needed nor used. A great loss. It was a bad wind gust that got him, the skid dragging was secondary. Mantz' biography, if you can find it, is "Hollywood Pilot." I think Don Dwiggins wtote it, not sure on that one. Interesting reading. Bill. [/b]
Posted on: 1/17/2007 3:02 PM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5280130

RE: Welcome to Club SAITO !
[b]All: New members and numbers: 421 kinnaird 451 kf6gub 452 Great-North 453 rgdea 454 msm411 455 RC-Bearings [s]456 kf6gub 457 Great-North[/s] 458 thanosg2004 459 az3d 460 Jarrah 461 rcavi8or 462 rickswl 463 roboto65 464 turboapache 465 LDM 466 bps 467 JNorton 468 drdivinity 469 RPM1 470 nilsreinert123 471 stinger40 472 angrycookieman 473 imsofaman 474 Jim Henley 475 joooe6 476 curtis robison
Posted on: 1/13/2007 12:50 AM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5256611

RE: Welcome to Club SAITO !
[b]Yeah, I know, Great North is in twice. Hs number will be 452, 457 will be reassigned. Bill. [/b]
Posted on: 1/12/2007 11:28 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5256666

RE: Welcome to Club SAITO !
[b]All: [quote]Orginal: JNorton ...especially the newsletter which distills this rambling missive...[/quote] Please, no more PMs and emails - John's reference to a newsletter must have been to Saito Notes, there has never been a news letter here. Bill. [/b]
Posted on: 1/12/2007 7:16 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5255309

RE: Welcome to Club SAITO !
[b]Harold: I'll get the member numbers up to date before long, patience please. Best assembly lube is clean fresh castor oil mixed 50-50 with ATF, but it's messy. Straight ATF works fine, it's what I use normally. Bill. [/b]
Posted on: 1/11/2007 1:04 AM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5246344

RE: Welcome to Club SAITO !
[b]Curtiss: Welcome, namesake of my uncle and cousin. Here's your adapter: http://www.truturn.com/cgi-bin/store/agora.cgi?exact_match=on&p_id=tt0828a&ppinc=adapt Bill. [/b]
Posted on: 1/11/2007 12:12 AM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5246199

RE: K & B .61
[b][Tukkus: Thanks for the offer, but I already have a few dozen of them. Bill. [/b]
Posted on: 1/5/2007 8:32 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5217331

RE: COX "Pica Duelist" ARF
[b]TD: I did ask, Mike said they had no plan to continue production of the "Gluit" product. Shame, I'm down to one bottle myself. Bill. [/b]
Posted on: 1/1/2007 4:15 PM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5193152

RE: Welcome to Club SAITO !
[b]Bone: Print reversal is definitely possible, that's why I had the other engine showing in the foreground. Note the intake and exhaust on it - opposite to the other engine. No photoshop on this one, but I admit to using it often to emphasize a point when needed. Bill. [/b]
Posted on: 12/26/2006 1:11 AM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5161959

RE: Welcome to Club SAITO !
[b]JonB: From a conventional viewpoint, all Saito single cylinder engines have the exhaust coming out the right side. Some are straight, some are angled to the rear. Unless you have a custom engine, maybe set up for symmetric engines in a twin, another for reversed rotation... See picture. Turbo"Patch" - You're in, and welcome. It'll be a while before I catch the numbers up again though... Bill. [/b]
Posted on: 12/25/2006 11:49 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5161666

RE: Looking to build a twin, suggestions?
[b]PiroD: A twin can be just as easy to fly as a sport single, or it can be an airplane that Jimmy Doolittle wouldn't want to get near. A very nice twin kit, easily built and very nice flyiing, is the Twin-Air 45 rom Northeast Aerodynamics. It also flies very well on a single engine. A nice smaller twin, an ARF this time, is the TwinStar. Avoid the temptation to overpower this one, 'specially if it's your first twin. Nothing bigger than a pari of .32 engines, .25s would be better. The TwinAir will serve as a trainer, it's actually a nice sport plane. The TwinStar is little more than a twin trainer. Sportier? Cedar Hobbies has their TwinStick, a little sportier in its flight, and a little higher in the needed skill than the TwinAir, but still not hard. Just some ideas for you. Bill. [/b]
Posted on: 12/14/2006 5:08 PM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5116526

RE: Saito .82 / Will Not Idle
[b]Justin: Additional on the LS: In your post you say you've gone in 1/4 turn. You still have 2-3 turns to go. They are very rich at the initial setting. Bill. [/b]
Posted on: 12/13/2006 7:12 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5112660

RE: Saito .82 / Will Not Idle
[b]Justin: Your LS is PROBABLY, but not necessarily, still too rich. Turn it in 1/8 turn at a time and keep trying. Bill. [/b]
Posted on: 12/13/2006 6:47 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5112555

RE: Everything Radial Engines
[b]All: Again, using Pe Rievers' "Prop Power" sheet and Gnome's figures I get these numbers: Seidel ST 540: 19x6 Menz at 5900rpm, 1.13n hp. 20x8 5100 rpm, 1.2 hp 22x8 4900 rpm, 1.56 hp. Seidel ST 710: 24x10 5500 rpm, 3.9 hp Technopower 7C: 14x8 7100, 0.78 hp 16x4 7200, 0.69 hp 16x6 6200, 0.66 hp. DH Ghost: 16x6 6200 rpm, 0.66 hp. Since these engines all fly well, it would seem that BHP is definitely over rated. Ram-Bro (and others): If you would like the Prop Power model send me your email address and I'll send a copy. Since it's neither text nor graphics it will not go through RCU, has to be email. Bill. [/b]
Posted on: 12/13/2006 3:36 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5111782

RE: Welcome to Club SAITO !
[b]All: Just want to wish all of us a merry Christmas and a happy new year. Bill. [/b]
Posted on: 12/12/2006 8:33 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5108687

RE: Welcome to Club SAITO !
[b]Scratch: Sorry, the force that acts on the fuel in the tank also acts on the column of fuel in the hose, and in an equal manner. Net effect of these forces is zero. What will affect the fuel mix is the accelleration, in exactly the same menner as pointing the nose up. And that has a leaning effect, not richening. Bill. [/b]
Posted on: 12/12/2006 12:52 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5106981

RE: Welcome to Club SAITO !
[b]kf6gub: Jim, the FA-100 was the first with the new style cam box, and the FA-125 and FA-220 are similar. But the FA-82a for one example, was introduced after the FA-100 and it still has the earlier style box. Mechanically, there's no real difference in the two. My opinion is that the people at Saito got tired of seeing the big round gear case sticking up in the breeze, and thought the modified housing would look better. I too think it looks better, but it wont make any difference in the engine's operation. Bill. [/b]
Posted on: 12/12/2006 11:21 AM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5106706

RE: Saito 120 Question
[b]Allan: OK, first we're going to solve the problem you noted in your first post, it has nothing to do with ABC/AAC, air bleed/TN, any of that. Your fuel tank is 'way too low. "If the engine is not running the fuel drains back into the tank very very fast." This is a dead giveaway. You could have fuel or installation problems other that the tank height though. As I said earlier you need some castor oil, that's easy. One that might not be as easy is to be sure the throttle link does not pull out on the throttle lever. An out load on a TN carb can have an effect, but on the Saito AB carb it will open the regulator valve all the way, the engine will go to full rich. More notes on your engine in particular: The FA-120 ABC is one that's referred to as "High Compression," don't try any more than 15% nitro in it, 10%or even 5% is a lot better. With the older cam grind you can help the power by settinig the valves down to 0.0005" clearance, yes that's one half of one thousandth inch. Or if you have a Harley rider friend who used to have an XL 55 or an XLCH and did his own service, perhaps he will show you how to set the valves to zero clearance. Adjusting the AB carb is a little different from the TN. WARNING: If the engine is running well DO NOT RESET the mid range disc adjustment. If you feel it's needed, first reset it to its base setting. ee the pictures, the line on the disc and the cast boss on the carb body give the initial position. Similar to the TN, first peak the high speed, but for the moment don't give it the few clicks rich. Next drop to 1/2 throtle, let the engine settle to a smooth run, and pinch the fuel line. The rpm should rise justn a little, and then fall. Thnis shows a good mid range mixture. If it falls immediately or doesn't rise at all, the mid range is lean. Loosen the two clamp screws on the strap holding the brass colored disc, turn it to put the line on the disc 1/32" to 1/16" below the boss on the body. It's sensitive, probably take a couple tires to get it right. Alternately, if the rpm climbs a fair bit and holds for more than 5 or 10 seconds before it falls, you're too rich. In this case reset the disc line above the boss on the body. Once you get the disc set go back to full throttle, peak the HS again,and this time do go back 200 rpm or so on the rich side of peak. Go to idle, again let the engine settle, and check the transition to full throttle. Adjust the air bleed screw as needed to get the engine to come off idle well. This is exactly like the twin needle, except in this case turn the screw IN for rich, and OUT for lean. HTH. Bill. [/b]
Posted on: 12/11/2006 11:31 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5105257

RE: Saito 120 Question
[b]Allan: Which carb? You didn't seem sure. Does the main needle mount to a brass colored end of the carb, or does it mount to plain aluminum as shown in the picture of the FA-120S? Finally, which cam do you have? See my last post. Tell me what you have, we can go from there. Bill. [/b]
Posted on: 12/11/2006 7:16 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5103755

RE: Saito 120 Question
[b]Finally we come to the cam shaft. No, you can't see it when the engine is assembled, but the later "High Lift" cam had to have the tappets raised to clear the taller lobes, so the tappet guides were extended out the top of the box. If you slide the lower rubbers up on the push rod tubes the one you have will be obvious. This picture shows the "Low" cam box on the left, the later "High" box on the right. So. Air bleed, ABC cylinder, low cam, oldest. Twin needle carb, AAC cylinder, high cam, latest. You could have almost any combination. Bill. [/b]
Posted on: 12/11/2006 7:05 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5103694

RE: Saito 120 Question
[b]Next we'll look at the cylinder construction. The older ones were ABC, larger and heavier than the later AAC cylinders. I think the ABC look better, but as I said, they are a good bit heavier. First picture is the ABC, notice the fins running up between the push rod tubes. Second is the AAC, fins are much narrower, to the point that the cam box can be removed with the cylinder in place. With the ABC the cylinder has to come off before the cam box will come off. Third picture shows just the ABC cylinder on the left, and the AAC cylinder on the right. Big difference. One more left. Bill. [/b]
Posted on: 12/11/2006 6:54 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5103638

RE: Saito 120 Question
[b]Allan: There were three externally visible production changes in the FA-120 engines. We'll take the carb first. First picture is a view of the later TN type, if yours looks like this you do not have the air bleed carb. Second is the HS needle end, the brass disc you see edge on is the mid range mixture adjustment. Third shot shows the throttle lever end of the AB carb. The main thing most people have a problem with is running all synthetic oil in the AB carb, the internal regulating valve will leak without some castor oil to seal it. More to come. Bill. [/b]
Posted on: 12/11/2006 6:42 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5103588

RE: What plane for a pair of G-Mark .061 engines?
[b]Tom: The Guillow's kits really aren't that great. Try Dare Design [link=http://www.darehobby.com/]here[/link]. Bill. [/b]
Posted on: 12/11/2006 12:16 PM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5102303

RE: Everything Radial Engines
[b]Tom: Using Pe Rievers' "Prop Power" sheet I get these numbers: 18-10 at 8400 rpm, 3.36 hp 18-12 at 7400 rpm, 2.75 hp 18-14 at 7000 rpm, 2.72 hp 20-8 at 8100 rpm, 3.67 hp 20-10 at 7200 rpm, 3.22 hp 22-8 at 7100 rpm, 3.62 hp. All are using the upper limit from the chart, and a prop factor of 1:1. I didn't notice Conrad mentioning a brand, if he did we might refine the numbers a bit. Regardless, looks like the engine prefers the 8" pitch. Bill. [/b]
Posted on: 12/11/2006 1:44 AM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5101079

RE: What plane for a pair of G-Mark .061 engines?
[b]Tom: Built very lightly, maybe a 40" span. The G-Mark engines are far from the most powerful in the world. Might find a kit or a plan set in this range. Bill. [/b]
Posted on: 12/11/2006 1:18 AM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5101024

RE: PICS of the ESM Composite Tigercat
[b]PF: The two 60 engines might be fine, but I don't think you will have a lot of power margin. Try them, shouldn't be hard to replace them later if you're not happy with the way it flies. Bill. [/b]
Posted on: 12/10/2006 11:11 PM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5100619

RE: Welcome to Club SAITO !
[b]Goose: Forgot to mention one thing many don't check - the valve clearance. If you've never reset them that could also be part of your difficulty. Bill. [/b]
Posted on: 12/10/2006 10:21 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5100387

RE: Welcome to Club SAITO !
[b]Goose: If your FA-72 is more than a couple years old it could well have the old style back plate which allows the carb to vibrate up and down, leading to failure of the upper o-ring on the intake pipe. And if you're turning the engine with the throttle closed that couold be the leak you hear instead of the case vent. If it is indeed the case vent it's not to worry about. First picture is the old style back plate, it should be replaced without question. Second is the new plate, you can see there's much more material in it along with ribs to support the carb. Third picture shows the carb against the support ribs. Old back plate or new, I'd order an engine gasket kit and replace the upper o-ring. Use the one in the kit labeled "Viton" there. Dancer: [quote]If I could just remember when flying inverted that down is up, and up is expensive.[/quote] Good line, sir. One that I've run up against a time or two as well. Bill. [/b]
Posted on: 12/10/2006 10:17 PM by Author "William Robison" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=5100371

RE: PICS of the ESM Composite Tigercat
[b]Tom: Run out of ammo for the guns throw the knife. I had it out to open the carton the plane came in, then set it on the wing to be sure I wouldn't lose it in the grass. It's a Buck #112 I've had for about 40 years, I'd hate to have to buy a new one at today's prices. Bill. [/b]
Posted on: 12/10/2006 8:44 PM by Author "William Robison" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=5099893