OS 120 AX and black exhaust oil
Hello. Ran my 120 AX after letting it set idle for several months. The exhaust oil discharge was very black. Someone said it was due to friction between the muffler and engine. Make sense? If so what solution do you propose? Could it be a bearing issue? No rough turning, strange sounds. Starts with one flip of the prop and runs fine. Thanks for your help!
Posted on: 3/26/2012 5:58 PM by Author "bkg1956" in the forum "O.S. Engines Support"
http://www.rcuniverse.com/forum/fb.asp?m=11016279

RE: Don Muddiman Flying Machine
I agree! Don puts together a fine kit. His instructions are great. Could almost scratch build from them alone.
Posted on: 1/17/2012 3:48 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10914137

RE: Roger Purcell's Scream Machine!!
Oops! Lom I haven't! So sorry!! Ãœber busy. Will do. Need to check my notifications settings.
Posted on: 12/21/2011 8:01 AM by Author "bkg1956" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10869756

RE: Don Muddiman Flying Machine
Thanks Fred! We're with you!!
Posted on: 12/20/2011 7:43 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10867976

RE: Don Muddiman Flying Machine
Thanks Vince!!
Posted on: 12/20/2011 12:07 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10867631

RE: Don Muddiman Flying Machine
Been awfully quiet on here! Somebody know something I dont??? Hope everyone has a Merry CHRISTmas!! It's all about Him!!
Posted on: 12/19/2011 9:40 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10867549

RE: Don Muddiman Flying Machine
Hey Roger! We both replied at exactly the same time! Great minds...! Hope you're having a great day, King!
Posted on: 12/6/2011 7:42 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10845928

RE: Don Muddiman Flying Machine
Hello! Don Muddiman used to supply plans for his Flying Machine. Not sure he still does since Condor Hobbies is building an ARF. Don's website is http://www.eagle-i.us/fm/. Hope this helps.
Posted on: 12/6/2011 7:39 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10845920

RE: Roger Purcell's Scream Machine!!
Here is a YouTube video I shot yesterday with Roger Purcell flying his electric versions of the Scream Machine, The Reaper, and his latest creation, the Mini Reaper. Windy day (20-25 mph according the the air sock at the airfield next door). Tough to get low to the ground and it was difficult for Roger to keep it in close. I was filming using my iPhone so I had no zoom capabilities. We'll do a better one in the near future. http://www.youtube.com/watch?v=fEtW3SkYBVY
Posted on: 12/4/2011 2:35 PM by Author "bkg1956" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10843027

RE: Roger Purcell's Scream Machine!!
Uh...Pat...I know the 'designer.' Taught me more about flying than anyone else! Never fails to push me to my limits. He gives back to the hobby. If he wanted to 'yell' at you he wouldn't use bold print...He wouldn't hide behind a forum...He'd do it to your face! You don't have to like our planes, but until you have at least flown something like a Scream Machine, you should keep uninformed opinions at check. No need to get personal.
Posted on: 11/29/2011 3:26 PM by Author "bkg1956" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10835151

RE: Don Muddiman Flying Machine
You got that right, Roger! LOVE the Jett .50 BSE! Different sound, response, power curve, light weight. Sounds like an F1 race engine! Believe me when you fire one up EVERYONE pays attention. Not because it's loud, but it's just strong!
Posted on: 11/17/2011 6:18 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10817283

RE: Don Muddiman Flying Machine
Dave, are you still using Coke can mufflers on the 55AX?
Posted on: 11/11/2011 5:04 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10807766

RE: Don Muddiman Flying Machine
Don used to recommend even the .46AX with tuned pipe. Personally I've used the .55 AX with tuned pipe and had excellent results! Either will work fine. Also, don't worry about flying the FM. As McDDD said, the plane will be as wild or as mild as you set it up to be. Great landing plane. Very predictable.
Posted on: 11/11/2011 9:51 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10807181

RE: Don Muddiman Flying Machine
Don used to recommend even the .46AX with tuned pipe. Personally I've used the .55 AX with tuned pipe and had excellent results! Either will work fine. Also, don't worry about flying the FM. As McDDD said, the plane will be as wild or as mild as you set it up to be. Great landing plane. Very predictable.
Posted on: 11/11/2011 9:50 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10807179

RE: Don Muddiman Flying Machine
Mrsand, I think you're gonna want a pretty hot two-stroke for the FM. Weight and speed are important here.
Posted on: 11/11/2011 6:27 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10806881

RE: Roger Purcell's Scream Machine!!
Thanks Roger! Tomski, and others who want plans, I am in the process of creating new templates for the Scream Machine that are easier for me to get reproduced. Not what Roger is doing with the Reaper, but similar. I'll let you know ASAP! Sorry for the delay!!
Posted on: 10/11/2011 6:55 AM by Author "bkg1956" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10759536

RE: Roger Purcell's Scream Machine!!
Roger , thanks for taking the time to write on this thread. I started it for fellow RC pilots to discover the Scream Machine and all it's variants. To have you active on the thread makes a huge difference!! This genre of high speed aerobatic aircraft is not just represented by one well-known plane, but also by planes like the SM, Reaper, and Mini Reaper!! Keep the designs coming, please! I'll be posting pics of my new scratch built Big Green Scream Machine in a while!!! Thanks to you, Roger!
Posted on: 10/3/2011 6:07 PM by Author "bkg1956" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10747150

RE: Older Jett muffler
Thanks Bob. I'll call Dub. You're right! It does come alive!! Had to put my tuned pipe back on and the difference is noticeable. The guys at the field like the sound of the Jett Stream better as well. More like a F1 race engine than a model airplane!! [:)]
Posted on: 9/29/2011 5:56 PM by Author "bkg1956" in the forum "Jett Engineering Support"
http://www.rcuniverse.com/forum/fb.asp?m=10741180

RE: Don Muddiman Flying Machine
[quote]ORIGINAL: Dave McDonald May the shavings from a thousand strands of fiberglass find their way to the inner lining of your underwear. [/quote] Dave, I have tried to come up with a pithy reply....but just can't. OUCH!!!
Posted on: 9/27/2011 7:52 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10737698

RE: Don Muddiman Flying Machine
[quote]ORIGINAL: mike31 Looks like a Hots! [/quote] Mike....WHATEVER YOU DO .....don't say it FLYS like a Hots!!!!!! [:)]
Posted on: 9/27/2011 7:46 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10737692

RE: Don Muddiman Flying Machine
[quote]ORIGINAL: mike31 Looks like a Hots! [/quote] Ok...You said that just to stir these guys up, right?!? I love it!!![:D]
Posted on: 9/27/2011 7:40 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10737684

Older Jett muffler
I came across and purchased for a song an older red Jett muffler for a Jett .50 engine. It fit my OS .55 AX and ran great...at least for the first few flights. There is something loose inside the muffler, and I can't get it in a position to identify what it is. The engine is in one piece. I was not aware there were any baffles inside these pipes. Am I wrong about that? The engine starts fine but loses power in flight and soon dies. Do I have a loose baffle? If so is there a remedy? Doesn't appear the pipe can be disassembled. Thanks for your help!
Posted on: 9/27/2011 6:41 PM by Author "bkg1956" in the forum "Jett Engineering Support"
http://www.rcuniverse.com/forum/fb.asp?m=10737572

RE: Jett 50 Question
I have a Jett BSE .50 I use on a Scream Machine. High speed aerobatics. I use 10x5 or 6, APC or Master Airscrew. Seems happy!
Posted on: 9/9/2011 4:17 PM by Author "bkg1956" in the forum "Jett Engineering Support"
http://www.rcuniverse.com/forum/fb.asp?m=10709265

RE: Don Muddiman Flying Machine
Well-said, Dave! Gentlemen...it's a model airplane...A TOY!!
Posted on: 9/5/2011 6:04 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10703217

RE: Condor Hobbies Flying Machine Contest
He can still enter the contest!!!!
Posted on: 8/30/2011 10:29 AM by Author "bkg1956" in the forum "Condor Hobbies"
http://www.rcuniverse.com/forum/fb.asp?m=10693533

RE: Don Muddiman Flying Machine
Chris, it's great to hear that. As you know, we've all had the experience of noticing something getting "loose" on our various ARF's, doing a little forensic surgery, only to find joints without glue along with the inexplicable fractures. With most ARF's you can land it, make the repair and no harm done. Not so with the FM! You'll be picking up the pieces! With a FM I don't believe overkill is a bad thing. Never fear! Don will sort it all out shortly.
Posted on: 8/16/2011 8:56 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10673407

RE: Don Muddiman Flying Machine
I hear you! My Scream Machine (similar to FM) has a cowl-less design so pipe mounting is effortless. Not as pretty as a cowl but much more practical. I can get to the engine to correct any problems without a dismount. Can mount the engine at any angle.
Posted on: 8/15/2011 10:13 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10672816

RE: Don Muddiman Flying Machine
Spoken like a true ProBro!! If it can't handle extreme, it ain't a Flying Machine! I love it when the guys at the field lose count on the number of full throttle diving spins from out of sight altitude! And, the Flying Machine/Scream Machine design really gets the attention of young pilots, which is definitely great for the future of the R/C sport!!! After a flight they love to gather around and ask questions and talk about high speed aerobatics. By the way, Dave, I have a .46VF on a Scat Cat. How did you mount it on the FM and run the pipe/header? Sideways? Any mods to make it work?
Posted on: 8/15/2011 8:54 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10672752

RE: Don Muddiman Flying Machine
Awesome! Don't misunderstand me. I'm all about innovation. However, I know you guys will figure it all out!! I just know what some of us will do with these ARF's and will expect them to be at least as strong as our scratch-built aircraft. I've NEVER seen any ARF that can withstand the flight envelope we see in the Flying Machine/Scream Machine scratch-built designs. You guys have a huge task to make that happen in an ARF and stay within the price point you've mentioned. Thanks for the effort! By the way, I'd love to get in on some of that testing action!! Just sayin'! [;)]
Posted on: 8/15/2011 1:06 PM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10672053

RE: Don Muddiman Flying Machine
Hate to keep raining on the parade, but I just noticed the lightening holes in the fuse sides and bottom. That doesn't seem right to me knowing what I'm going to expect out of this plane. Again seems weak at what is perhaps THE most critical part of the airframe. So much stress there. I think it will break with the kind of flying some of us will do with this plane. Also, will there be any type of wing saddle on the inside of the fuse? I know Don and the design team will come to a good conclusion, but I think the wait just got a bit longer. I'm still excited, but now I'm wondering...
Posted on: 8/15/2011 9:20 AM by Author "bkg1956" in the forum "The Clubhouse"
http://www.rcuniverse.com/forum/fb.asp?m=10671656