RE: OS 120 AX Problem ?
Here's the foolproof tuning method for the perry pump, if you try to tune with the adjustment screw on the pump as the instructions state, you will lose all your hair, and throw the pump onto the ground and stomp it to death, save yourself the heartache. Open up the muffler if you've had it blocked off, peak the high end, don't back off rich. Go to idle, if engine idles well for 15 or 20 seconds, lean the low speed 1/4 turn, Go back to the top and re-peak, go back to idle, same routine, if it idles for 15-20 seconds, lean another 1/4 turn, continue this process until engine will not sustain a idle, it should speed up and die within 20 seconds. Now richen the low speed 1/16th turn at a time until engine will again sustain a idle,after each adjustment on the low speed repeak the top end, as soon as the engine will sustain a idle leave the low speed alone. Each flying day just repeak the top end and back off 150 rpm for flying. You have to go lean on the low speed needle to the point of no idle then come back up to get it right. Transition from idle to midrange up to full should be crisp without sputtering. If you run the high speed to rich you will have the same problem with sputtering. My O.S. 120, 160 and 1.08 performs flawlessly with this setup using a Bisson pitt's muffler, I had to lean the low speed 1-1/4 turns to get it to run properly, just make sure you peak the high end and only back off 150 rpm, be sure to use a tach. On my 1.08 it took about 7/8 of a turn on the low speed to get it right. When your done your low speed needle will about half open to what it was with the stock muffler, I think mine is about 7/8th to 1 turn open when stock calls for 2-2.5 turns out I think, it's been awhile since I played with it.
Posted on: 9/14/2012 3:02 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11228084

RE: OS 120 AX Problem ?
[quote]ORIGINAL: airraptor Yes the pitts mufflers do not supply enough pressure to feed the carb. three things to do if want to run the pitts muffler 1.Block off one exhaust tube or pinch both of them closed 1/2 way with pliers 2. run a 30 dollar perry pump 3. run a smaller carb all the AX engines not like to run hot. I am very well versed in the OS 120 AX engine. If you have any questions let me know. The 120 is the strongest one out there and it is also the lightest. It is even stronger than a Jett 120. [/quote] The correct answer is #2 I've been running a 120AX on a perry pump for 6 years. I had the exact same problems and this solved them all. Most people on here will curse the Perry pump but they don't know the proper tuning procedure. I'll find it and post it. You will be amazed at the performance when you have it done, but you have to drill and tap a pressure port in your backplate.
Posted on: 9/14/2012 2:55 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11228080

RE: Hobbico Avistar a Performer?
Here's a real early pic of the first Avistar arf back in 1991. Sorry for the poor quality it's a picture of a picture, we had no digital cameras back then.[:D] Mine started with a O.S. 61 4 stroke and then I wedged my first O.S. 91 4 stroke on it. Had alot of fun with this setup. Only other suggestion I might make is turn it into a taildragger. This early version also had a semi symetrical wing which had a bit of dihedral which was removed, I think as stated this newer one has a flat bottom wing.
Posted on: 8/2/2012 1:17 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=11178124

RE: Parkzone NEW BRUSHLESS (YES!!!) P-51 Mustang RTF and BNF
Guardians of Freedom Airshow Lincoln Nebraska 9/11/2011
Posted on: 9/18/2011 12:11 PM by Author "Stuntpilot51" in the forum "Park Flyers & Backyard Flyers"
http://www.rcuniverse.com/forum/fb.asp?m=10722714

RE: Which Camera to take
I just bought the Canon XS about 3 months ago. It's a no brainer, go with the Canon. I have yet to take a bad picture with it. Easy to use, great software. Here's a couple of shots. second one is with a 70-300 zoom from about 50 feet away 40 feet up in a tree, don't ask![8|][8|][8|]
Posted on: 9/10/2010 8:16 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9992243

RE: .52 Surpass on Avistar?
Brandon, I flew my Avistar many years ago with my first O.S.61 surpass. The perfect combination, you won't be disappointed. I think I was running a 12-7 or 11-8 and it was quite fast. The 52 has probably the same power as the early 61. Picture is kind of crappy as it's a picture of a picture, we did'nt have digital cameras back in the early 90's [:D][:D]
Posted on: 9/9/2010 5:41 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9990016

RE: What is the Max amperage for charging?
No, I would'nt charge at 5 amps. Always charge at 1C which would be 1.8 amps with your pack.
Posted on: 8/29/2010 10:26 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9966897

RE: OS-Model 1901/FS-90 PARTS NEEDED!
Give this guy a call. He might or might not have what your looking for. http://stores.ebay.com/ROBAIR-HOBBY-SHOP_OS-Max-Engine-Parts_W0QQ_fsubZ10748419QQ_sidZ96731600QQ_trksidZp4634Q2ec0Q2em322
Posted on: 7/6/2010 5:38 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9847235

RE: Nitroplanes.com Absolute worst C/S
I agree. So according to you this guy is probably not going to fly, just like alot of other newcomers who buy from NP and can't figure out the instructions or repair a problem that nearly all of them have. If your on your second twelve pack by noon, you probably won't be flying either.[:D][:D]
Posted on: 7/3/2010 1:31 PM by Author "Stuntpilot51" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9842468

RE: Nitroplanes.com Absolute worst C/S
Slic, I started 23 years ago and built my first plane from a kit, there were no micro's or ARF's or RTF's back then., nor were there any simulators. I had to risk my $$ to learn to fly. I've planted my share of planes into the hard ground. You don't learn much from building an ARF, you assemble it not build it. An RTF you will learn nothing. Your statement you either fly or don't fly really made no sense in relation to what I said.
Posted on: 7/3/2010 12:33 PM by Author "Stuntpilot51" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9842371

RE: Nitroplanes.com Absolute worst C/S
OK! Slictrix. [8|][8|][8|]
Posted on: 7/3/2010 7:37 AM by Author "Stuntpilot51" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9842027

RE: Nitroplanes.com Absolute worst C/S
[quote]ORIGINAL: SlicTrix [quote]ORIGINAL: Stuntpilot51 paulieb1979, I hope you informed them you were recording them before you post that audio on You-Tube, there's very strict laws regarding that practice. I would check into your state laws. There was a spycam video of a guy getting pulled over by the cops that was recorded, he failed to warn the cops he was recording them, he's
Posted on: 7/3/2010 7:08 AM by Author "Stuntpilot51" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9841996

RE: Nitroplanes.com Absolute worst C/S
paulieb1979, I hope you informed them you were recording them before you post that audio on You-Tube, there's very strict laws regarding that practice. I would check into your state laws. There was a spycam video of a guy getting pulled over by the cops that was recorded, he failed to warn the cops he was recording them, he's in some trouble right now. I'm not promoting Nitroplanes but if you can find a ARF that does'nt need some kind of work let us know who's that is, especially if they are as cheap as NP. I've never bought an ARF that did'nt need some attention, they all come from the same place, China. If you read thru this section of RCU you will discover all the problems that previous buyers have uncovered so you can address them before your maiden flight, loose or broken parts are common and cheaper to fix then spending time messing with the company. Ever buy from Hobby King?
Posted on: 7/3/2010 5:27 AM by Author "Stuntpilot51" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9841949

RE: Shipping a glow engine to Germany? How long?
Kmot, Did your package get to Germany? I remember the guy wanted me to fudge on the value to avoid customs charges, I used the shipping option thru Pay-Pal so I couldn't lower the value. I also insured it for the total value just to cover myself. I heard thru RC Bearings that shipping to Italy could cause problems sometimes. You also had that volcano to deal with, so packages were probably backed up anyway. Shiiping was delayed for quite sometime because of that.
Posted on: 6/30/2010 5:34 PM by Author "Stuntpilot51" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=9836955

RE: universal connector wires
I can't remember ever seeing a professionally made pack with three wires. Tower does'nt show any. I would guess that it's been rewired or is a home built pack. Oops, right after I say that I looked at an older Hydrimax pack that has three wires.[8|][8|][8|]
Posted on: 6/28/2010 11:57 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9831749

RE: First OS Wankel Engine manual (Side Inlet Port)
[quote]ORIGINAL: Radial power [quote]ORIGINAL: Stuntpilot51 ...I wonder why this is'nt listed in the O.S. manufacturing timeline. ... [/quote] Actually, It is listed in the OS manufacturing timeline. Go to the year 1970 and there it is. Radial. [/quote] If you notice the carb is mounted slightly forward of the main case, as Nicholas says, his is a slightly a different engine. I mentioned
Posted on: 6/26/2010 6:03 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9827590

RE: First OS Wankel Engine manual (Side Inlet Port)
It took me awhile to see the slight difference in the intake port. I wonder why this is'nt listed in the O.S. manufacturing timeline. Maybe because it's a Graupner/O.S. I did find this though, holy crap that thing is worth some bucks.[:D] http://www.christies.com/LotFinder/lot_details.aspx?intObjectID=4223392
Posted on: 6/25/2010 3:24 PM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9826562

RE: How NOT to tune your engine! A safety video.
He's lucky it did'nt break about 30 seconds earlier when he had the arc between his legs.[8|][8|]
Posted on: 6/25/2010 8:38 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9825892

RE: Gemini FT 120 main needle
From what I can gather your carb is a 6H, Give this guy a call and see if he has one , he deals in out of production parts on e-bay http://stores.ebay.com/ROBAIR-HOBBY-SHOP
Posted on: 6/24/2010 1:56 PM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9824410

RE: First OS Wankel Engine manual (Side Inlet Port)
It should be the one at the second from the bottom of this page, http://www.osengines.com/manuals/index.html
Posted on: 6/23/2010 8:32 PM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9822888

RE: Shipping a glow engine to Germany? How long?
I can't tell you about German customs but, I recently sold a 61 RF to a guy in Italy, it took about 24 days. I watched the tracking and it went in and out of customs about 6 times. I'll bet he get's it any day now. Are you showing any tracking info other than it was accepted? If not I would pay a visit to your post office.
Posted on: 6/23/2010 2:47 PM by Author "Stuntpilot51" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=9822174

RE: anyone use Futaba S9602 servos?
Those are excellent mini servo's. Coreless, metal gears, dual BB. I used 4 of them for my ailerons on my Dave Patrick Ultimate. 500 + flights. He recommended those in the manual. I've retired the plane and use them for throttle servo's Kind of pricey though like all Futaba coreless servo's. Probably not the best choice for a 40 size plane. I would use the 9001 for that application.
Posted on: 6/21/2010 3:16 PM by Author "Stuntpilot51" in the forum "RC Radios, Transmitters, Receivers, Servos, gyros"
http://www.rcuniverse.com/forum/fb.asp?m=9817630

RE: rx Lipo Battery
You could use either of these regulators, I would stick with the 2200 that you have. http://www.maxxprod.com/mpi/mpi-21.html#6%20Volt%20Regulator
Posted on: 6/21/2010 2:46 PM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9817575

RE: Red Bull Air Race coverage info
Here's another angle, http://www.redbullairrace.com/cs/Satellite/en_air/Video/Qualifying-Highlights,-Windsor-021242857591037 gboulton, I was at the Dayton museum two years ago, most amazing place I've ever been.
Posted on: 6/7/2010 6:21 AM by Author "Stuntpilot51" in the forum "Airplanes - Full Scale"
http://www.rcuniverse.com/forum/fb.asp?m=9786613

RE: Red Bull Air Race coverage info
Holy Crap!! Matt Hall does a bounce off the water in Windsor, http://www.youtube.com/watch?v=Tm28O2iyGBM
Posted on: 6/6/2010 3:33 PM by Author "Stuntpilot51" in the forum "Airplanes - Full Scale"
http://www.rcuniverse.com/forum/fb.asp?m=9785123

RE: Screwed up transmitter
I wonder if the new headlight restoration kits would do any good. I think it was a Mequire's product. In the auto section next to the wax.
Posted on: 5/26/2010 7:39 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9760103

RE: Central New York flying clubs
Brad, Pay a visit to the ARCS club in Marcellus NY, I Spent a week there flying and it's the best club I've ever been to. Some of the best people I've ever met. They bend over backwards to make you feel welcome. I hope to return there soon.
Posted on: 5/25/2010 6:57 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9757495

RE: OS 60 is not holding fuel adjustment needle in place
ismen, Enter the OS part number from your manual into Tower's search box, it should take you right to it. Common and cheap part, tubing works at the field in a pinch but get the right part. http://towerhobbies.com/
Posted on: 5/21/2010 8:49 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9749005

RE: Carb Parts & Service for MOKI?
Hobby People has started to carry the Moki parts, now called Mark. Scroll down for the parts, idle adjust o-ring. It's the same as the 210 carb, Part # 214576 $7.00 http://www.hobbypeople.net/guru/hps_321175803.asp
Posted on: 5/18/2010 7:45 AM by Author "Stuntpilot51" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9741664

RE: Aurora 9
Here's a better thread to let you know what people think about the Aurora 9, I'd skip the first 60 pages.[:D] http://www.rcuniverse.com/forum/m_8515737/tm.htm
Posted on: 5/18/2010 7:39 AM by Author "Stuntpilot51" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9741654