Good pattern plane motor?

Good pattern plane motor? (Full Version)

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Chris 540 -> Good pattern plane motor? (6/27/2002 9:51:47 AM)
Now I'm thinking about getting a Funtana soon. To tell you the truth I've hardly ever even looked at or payed attention to pattern. I was looking around and found the OS 140 and 160. What is so special about the 140? I know the YS are supposed to be great..but are kind of expensive...I wouldn't be getting the DZ. How is the L? Also I found the Webra 145. I like the price. How are they? Also I really like those asano CF pipe. Are they worth the money? Thanks :D

Anthony-RCU -> Good pattern plane motor? (6/27/2002 10:06:03 PM)
All the engines you mentioned would be good choices. MHO YS 1.40 L Mid 8000's take off 15.512W on 20/20 fuel. Great power great response and love the sound. Check the valves and keep it very clean, never run it lean and it will still need to be rebuilt ($$) every 300 flights or so. YS 1.40 DZ Similiar numbers with a 16.5 12w on 30%. Don't own one but a few friends do. Very finicky on settings but when the run seem to be very powerful and smoother than the L. No idea on longevity. OS 1.60 FX Simple, powerful and easy to handle. Side exhaust, stock muffler is heavy 11 oz as well as the rest of the engine 32.6 oz. and tank placement matters. OS 1.40 RX Around 8000 on a 17*12N on 15%. Pretty simple and lighter. Pumped and rear exhaust. Bearing life can be short 100 flights or so but easy fix. Will be in my new plane. Webra 1.45X Lightest of the bunch numbers seem online with the OS RX. Only seen one and seem to run pretty well. The Asano pipes look expensive to me. I was tempted to spend the money on the ES composites pipes but wound up with the heavy OS pipe. Piedmont models is setting up to bring in Manfred Greve's pipe which are Al but very light and supposed to be around $100.

flywilly -> Good pattern plane motor? (6/27/2002 11:07:03 PM)
My 2 cents: I've gotten rid of all my 4-stroke stuff. I just prefer the simplicity of the 2-strokes. I've run the Bully 1.20 and 1.45 (very similar to the Webra) with great success! Everything I've heard about the Webra (from Piedmont) has been good. The new version (Aero-X) should be even better - I may have to get one of those myself. I have an OS 1.40 with about 50 flights on it. I love this motor - runs great. I'm running an 'F' plug, 10% nitro and an APC 16.5 x 12W prop. The engine seems very happy. I can't speak to the bearing life issue with OS- 100 flights is pretty pathetic. The bearings in my Bullys are still good and one of them has 1,000+ flights. I've also run the ST2300 with a wrap around header, 'F' plug and header tank (no pump) - it ran very well with good power. Much better performance with an OS 7D carb or Perry Mega-carb. Lastly, the OS 1.60FX. You can get Hatori wrap around headers for this engine from Central Hobbies. I"ve not run mine in a pattern ship yet, but with a pressure line and a header tank or the Cline fuel regulator I think it would be a great choice. There are several being run in the Focus pattern ship (among others). Power will not be a problem if you go with the 1.60. The good news is that all the available engines work well. There are significant price variations, I'm not convinced that spending a grand for an OS 1.40EFI will give you better performance than with a properly set-up OS 1.60FX (about $600 cheaper, too). The YS 'Dingo' has been getting rave reviews; so I'm sure if you go that route you'll be very happy. Good Luck, Will B.

can773 -> Good pattern plane motor? (6/27/2002 11:41:41 PM)
I own 140L's and a couple of 140DZ's, and have seen all the other motors in the air on pattern ships. My opinion is that the 140DZ is the best motor that you can use for pattern. It gives you all the power of the big 2-strokes, with all the beauty of throttle response, breaking, and consistent power (no pipe effects) of a 4-stroke. As for setting it, I would not call it finicky, you just need to make sure that you are not running it rich or it will give you headaches trying to set it, takes a little getting used to but then its all good. So far I have about 8 gallons of fuel through the DZ, I have not once touched the valves. While running on the ground the engines remains cool enough to touch and has almost no vibration. I would imagine that its life will be longer than the L, but only time will tell. If you plan on keeping the plane light ~10lbs or less, then I think the L (you said you wont get a DZ) would be the best choice, but if your plane is heavy and you are going to need a bunch more power then you will have no choice but to go with one of the 2-strokes.

Chris 540 -> Good pattern plane motor? (6/27/2002 11:57:51 PM)
Interesting! Thanks for all the info! How much does a DZ cost?

can773 -> Good pattern plane motor? (6/28/2002 12:05:59 AM)
I think Central and RS sell them for around 660 ish, still cheaper than the OS EFI

robert -> Good pattern plane motor? (6/28/2002 12:18:26 AM)
I've just run the 140L, and got rid of ALL the problems I earlier had. Its brand new, and already idles like a jewel at just a shade over 2000RPM, (brand new, remember!), has tons of torque, in a nice linear way, and wow, does it roar at full! The choice is yours really, for the Funtana, which is a fun toy, you don't use as much power as in pattern, where you have LONG verticals with rolls and that type of thing. I have seen that Chip Hydes DZ is spinning the OS 140RX at the same RPM. My vote=YS, any of them, but preferably the DZ!!!!

Chris 540 -> Good pattern plane motor? (6/28/2002 1:10:27 AM)
660 isn't too bad. I thought they were more. I'll probably go with one of the DZs then. Trust me...I like power!!

Chris 540 -> Good pattern plane motor? (6/28/2002 1:17:58 AM)
Oh...would a Mej. 18x6 be good for 3Din with the DZ?

robert -> Good pattern plane motor? (6/28/2002 2:03:21 AM)
Give Sebastiano Silvestri an e-mail. He uses the Dingo in his Funtana. APC would be the props for these. Around 18x9w.

Chris 540 -> Good pattern plane motor? (6/28/2002 2:42:33 AM)
Wow...that thing is one powerful mother!! I have a Bolly 18x10 with me...that might work?

can773 -> Good pattern plane motor? (6/28/2002 3:05:59 AM)
[QUOTE]Originally posted by Chris 540 Wow...that thing is one powerful mother!! I have a Bolly 18x10 with me...that might work? [/QUOTE] Chris My DZ spins a 16x12 @ 8900 on 25% at 3500' asl, occasionally I see 9100 on the tach :) That is too high an rpm though, prop it for mid 8's.

robert -> Good pattern plane motor? (6/28/2002 3:40:56 AM)
I still have to tach my L with a 16x11, but it sounds like a very VERY light load. I might be able to bring it out tomorrow if the weather is alright. (as if!!)

flyboy91 -> Good pattern plane motor? (6/28/2002 3:51:39 AM)
Chris, I have run mezilcs(sp?) and there is not a better prop out there then the APC it is the most effecent prop out there. I had a 16x12 mezilc and i got 88 hundred but when i put on the apc 16x12 i only got 84 but much more pull. I would maybe go wit the 18x6w I think that would be great Andrew

Anthony-RCU -> Good pattern plane motor? (6/28/2002 11:23:53 PM)
[QUOTE]Originally posted by flywilly I have an OS 1.40 with about 50 flights on it. I love this motor - runs great. I'm running an 'F' plug, 10% nitro and an APC 16.5 x 12W prop. Good Luck, Will B. [/QUOTE] Hi Will, What kind of rpm are you seeing with that prop and what plane are you flying? How does it fly with the wide blade?

flywilly -> Good pattern plane motor? (6/29/2002 7:53:17 AM)
Hi Anthony, the 1.40 was in a Hanson Excess - mostly to get broken in. The airplane was built by somebody else (and is overweight - 11.5lbs dry - yuck). I haven't tached the engine and to be honest I rarely bother. I'm looking for reliability - and I'll give up a few rpm for that. I'm putting the engine in a scratch built pattern ship that should weigh about 9.25 - 9.5 lbs; so power shouldn't be an issue with the OS 1.40. The 16.5x12W pulls great and is very quiet (I've run the engine with 16X12, 17x10 and 17x12). Sorry, I don't have exact numbers for you; I like to read them, too. For me, I go with empirical 'data' and when something (like the OS 1.40) works well with very little tinkering and I don't mess with it too much. By the way, I'm running the OS pipe set 1" longer than the instruction manual length. Good luck, Will

Dansy -> Good pattern plane motor? (6/29/2002 5:00:55 PM)
I'm running three OS 140 RX, mostly with the 16x14 APC around 8400 rpm with 25%, dual plug's head and the 70 B carb, OS header and ES pipe two long and one standard. I have tried the Mez pretty...expensive....and more noisy, pull less, not worth the money in my opinion. I have tried the 17x10 17x 12 Mez, and the 17x10, 16x12, 16x14 APC I'm still waiting for a 16 x12W to give it try. I change the bearing around the 100 flights....:( but that doesn't much and don't cost a fortune, will try the Boca next time to see if I would get more flight out of them. Gator Giles 202, two PL Prod Tornado's. Daniel D.

dick Hanson -> Good pattern plane motor? (6/30/2002 4:18:07 AM)
I am presently trying a whole different shot at this-- The new ZDZ40 is rear intake /rear exhaust - so I am presently trying to do a 11 lb bird -at 11 lbs - so far -so good - the entire fuselage is at one lb. I figure 4 lbs for the whole airframe (bare) is a doable number - hardware and all will run it up in a hurry. I had to skimp on gear and cowl and spinner -but they will be there --- Local flier York Zenther has a de stretched 202 he whipped up- all composite fuse -etc- and a BME44 but it is too heavy - being upwards in the 12 lb area- flies nice tho! I really see this approach as the future for pattern. Not trying to start an argument - just commenting.

Anthony-RCU -> Good pattern plane motor? (7/1/2002 9:36:54 PM)
Hi Dick, No argument here. Great to see someone trying something different. The more options the better the equipment gets for all of us. FlyWilly, Thanks for the data on the 1.40. This will be my first two stroke in almost five years. I want to try the 16.5 * 12W and you are the first one I have seen around using it on the RX. How did you extend the pipe only 1"? Will an extra long coupler last? A friend was experimenting with a four bloater on an Excess with a 2300. Don't know the results but nice flying plane.

robert -> Good pattern plane motor? (7/1/2002 9:40:10 PM)
The 3M mintor is another one that shouldn't be ignored. Said to go very similar to the OS 140RX.

TOYMAKER -> ENGINES..... AND MORE ENGINES (7/6/2002 11:35:52 PM)
Most of the 2 meter planes will take from a 1.2 to 1.6 size engine. So you have a good chioce out there. If your a 4 stroker the Y.S is about the only real option. 2 strokers have more leeway. O.S. 1.4 RX Bolly 1.2 and 1.45 Webra 1.45 Aero X S.T. 2300 w/Perry pump/carb and wrap around header by Karl Mueller out of Canada O.S. 1.6 FX and Hatori makes a wraparound header for it. You will need something with a pump as most of these planes have the tank on the C.G. I have beeen running an S.T. but had to have a pump on it. Just got an O.S. 1.4 RX for my new ARIES. I'm sure there are others but this seems to be whats going now. The MDS 1.50 might even be an option if its not to heavy and you could direct the exhaust to a pipe.

prophecypilot -> Good pattern plane motor? (7/7/2002 8:37:48 PM)
I have a ys 140 fz I would sell if interested

flyboy91 -> Good pattern plane motor? (7/7/2002 9:39:21 PM)
Mike, How come your selling your FZ. Also your not going to the Nats are you? You would do very well if you did. Andrew

IFlyRC5630 -> Good pattern plane motor? (7/8/2002 4:18:03 AM)
Take a look at the MVVS 1.5.......A real tiger.

prophecypilot -> Good pattern plane motor? (7/8/2002 7:45:26 AM)
Andrew, I'm selling the ys because its a spare I don't need anymore. I'm running an RX on my Focus and I have an L on my prophecy. No, I'm not going to the nats, I wish I could, but it's hard to get that much time off from work at one time. You go win it and then when you come down here I can say I beat the nats champ!!!!

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