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Old 02-21-2010, 08:05 PM   #1 (permalink)
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Default OS 55 worth the extra money

Getting ready to hit the add too cart button. I've got it norrowed down to Trex 600 nitro pro, or Velocity 50, OS 50 or 55 motor...... I'm only one year into this habit,this will be my first nitro....So far Align has been my drug of choice but the Velocity looks great and maybe it's time for a change.. If anyone has used both the 55 and the 50 motor please let me know if it's worth the hundred bucks or so for the extra, (3D is in my near future i hope, not there yet) Thanks for any advice>>>NOT TRYING TO START A WAR !!!
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Old 02-21-2010, 08:17 PM   #2 (permalink)
 

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the lhs carries both and the outrage is so sick looking man its so nice. Looks really wel build and is just very sturdy. it is great align is alwasyg ood and i never flown either but i hear the outrage is all the rage lol... Really thou they love it at the lhs i think its my next heli and first nitro actually
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Old 02-21-2010, 08:22 PM   #3 (permalink)
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Default Re: OS 55 worth the extra money

It was worth the extra cost to me. I only fly sport, but it allows me to run 20% nitro and get the power of 30%. The biggest advantage is a mid range that isn't too lean, as it tends to be on the OS 50.
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Old 02-21-2010, 09:00 PM   #4 (permalink)
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Default Like i said 1st nitro ?

I don't under stand why mid range would be important ? Don't you fly nitros at 90% and 100 % in stunt same as electric helis??
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Old 02-21-2010, 09:09 PM   #5 (permalink)
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Velocity does look nice. Yet to see one in person. Align is about all that i see here, might have to be a trend setter.
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Old 02-21-2010, 09:24 PM   #6 (permalink)
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I don't under stand why mid range would be important ? Don't you fly nitros at 90% and 100 % in stunt same as electric helis??
Not unless you want to blow a motor or sling a blade. The idea is to keep the headspeed somewhat constant. An idle up curve is approximately 100-50-100. There is some variation due to pitch and engine selection, but this gets it in the ballpark. Hovering takes place at about 60%, give or take.
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Old 02-21-2010, 09:26 PM   #7 (permalink)
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I don't under stand why mid range would be important ? Don't you fly nitros at 90% and 100 % in stunt same as electric helis??
OS 50's have a hard time spooling up. The new 55 with 3 needles solves this
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Old 02-21-2010, 09:46 PM   #8 (permalink)
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Didn,t know throtle curve came down to 50 in idle up. understand why you need midrange now. plus the extra adjustments would be nice . thanks
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Old 02-21-2010, 10:07 PM   #9 (permalink)
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Didn,t know throtle curve came down to 50 in idle up. understand why you need midrange now. plus the extra adjustments would be nice . thanks

it doesnt with a good govener

ive seen that curve more often with a 90 then a 50. i believe a 50 will over rev much more then a 90.
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Old 02-21-2010, 10:16 PM   #10 (permalink)
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Didn,t know throtle curve came down to 50 in idle up. understand why you need midrange now. plus the extra adjustments would be nice . thanks
I love the 50. For 1950 headspeed (which is all a Vibe needs) my curve is about 100-62-46-62-100. No issues with lean running on the mid, but the low is a bit rich which makes cold starts a little bit difficult to keep running... not worth the extra $120-$140 to fix it, IMHO... unless you really want to use the extra power.
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Old 02-21-2010, 10:17 PM   #11 (permalink)
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I sold my OS 50 to get the 55 and it was worth it. The midrange is much better.
My YS ST50 is the best runner I have, smooth and powerful. You may want to consider the YS56. As a insurance policy,YS is much better about warranty work than OS.
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Old 02-21-2010, 10:22 PM   #12 (permalink)
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does a 7100R replace the govenor ? it's the reciever i have ( in my cart) on my list.
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Old 02-21-2010, 10:45 PM   #13 (permalink)
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The 7100R does replace the governor.
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Old 02-22-2010, 01:13 AM   #14 (permalink)
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The OS .55 is worth every dollar over the .50. First, it's way, way more powerful, to the point my 700 has a very slight edge on the 600. Very slight (used to be incomparable). Second, the tuning is much more flexible compared to the 50 (although it can be a double edge sword if you don't know - or unwilling to learn - what you're doing).

Third, and perhaps most importantly, it supposedly doesn't eat bearings as bad as the 50. And that, my friend, is a very big advantage (some people, like myself, had to pull apart the engine for bearing replacement every few - 2 to 4 - gallons).

I say get it and don't look back. You can get the Align version, it's $50 less at www.flying-hobby.com (and maybe other places too, I don't know). If it's anything like the .91 engines, the Align and the OS ones are identical.
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Old 02-22-2010, 10:12 AM   #15 (permalink)
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Once again the Freaks have talked me into spending more money, 55 here we go.... Anyone going to talk me out of Trex600 and into Velocity 50.(just a little more money) Thanks
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Old 02-22-2010, 10:30 AM   #16 (permalink)
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Once again the Freaks have talked me into spending more money, 55 here we go.... Anyone going to talk me out of Trex600 and into Velocity 50.(just a little more money) Thanks
No, but I might talk you into a Compass 3D+.
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Old 02-22-2010, 10:36 AM   #17 (permalink)
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Now I'm not trying to talk you into one thing or another, but if your not new to helis, and like to build/rebuild, consider a used heli. Resale on this stuff is about 50% and some definite bargains can be found. I would recommend picking it up if possible as opposed to having it shipped, simply for security.

Heres a link to the one I got.

You do have to be veeery careful when doing this so you don't get robbed, and when you get it you need to be prepared to take it all the way apart and inspect/rebuild. When mine arrived, some of the items i had to replace where bearings, a carbsmart servo, and some plastic bevel gears (wear, not damage) I also had to rebuild the carb and do the switch thing on the 2 in 1, but I would have done that to the 2 in 1 anyway if it was new.

I'm very pleased with the one I got
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Old 02-22-2010, 10:44 AM   #18 (permalink)
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Once again the Freaks have talked me into spending more money, 55 here we go.... Anyone going to talk me out of Trex600 and into Velocity 50.(just a little more money) Thanks
Yes. I'd say get the Velocity 50. I have one, and many of the guys I fly with who have 600Ns have been drooling over my Velocity. I absolutely love it. In fact, I've been enjoying flying it more than my 700N. From my perspective, here are the advantages of the Velocity 50 over a 600N:
- Lighter weight (equals better power to weight ratio)
- Cheaper replacement parts (see the crash cost comparison thread someone else started... the Velocity was closer to the trex 500 in crash costs than the 600)
- Highy adjustable head (giving you the ability to go mild to wild... I thought all the adjustment options would overwhelm me, but it's been quite the opposite, I love learning how each part has an effect on the overall flight characteristics)
- ability to run 620 to 630mm blades, which will help you get more out of that 55 - this makes a BIG difference
- much better tail design, equals less slop, and higher reliability
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Old 02-22-2010, 10:45 AM   #19 (permalink)
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Not unless you want to blow a motor or sling a blade. The idea is to keep the headspeed somewhat constant. An idle up curve is approximately 100-50-100. There is some variation due to pitch and engine selection, but this gets it in the ballpark. Hovering takes place at about 60%, give or take.
I always thought the mid-range of an engine is the operating rpm not the throttle opening pertentage.
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Old 02-22-2010, 10:52 AM   #20 (permalink)
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My understanding is that midrange is just that, not WOT, and not idle. Its possible to load the head sufficiently at full throttle and still maintain 1800rpm headspeed, but that does not mean your running in the "midrange"
its usually defined as being somewhere between 30 and 70% throttle, under a normal load.
Most peeps use the term to describe a mixture setting, such as idle (low end), midrange, and high.
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