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HomeAircraftHelicopterMain Discussion › OS 50 Hyper Curves?
04-04-2005 01:00 AM  13 years agoPost 1
mikefoy6

rrApprentice

Thief River Falls, MN

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I am still in the process of breaking in my OS 50 Hyper, My throttle curves had to be drasticly changed from the Webra 52 i had in there before.

They used to be Linear 0-25-50-75-100

Now they are like this 0-19-35-51-74

It still over-speeds in climbouts and im only using 74% of the throttle!! (and it is still sloppy rich)

Is this happening to anybody else?

And yes im sure my throttle linkage is setup correctly, I am limiting the travel with my curves.

any ideas? Is this normal?

Mike

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04-04-2005 01:05 AM  13 years agoPost 2
ornatep

rrApprentice

San LUis Obispo, CA USA

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had same problem I had my idle ups in a typical v curve form 50-60 to 100% thought the motor was going to blow up it was screaming. After fiddling farting with it for a couple a weekends got tired of trying to find the right curve playing with the atv also I installed a governor now it works great, good luck

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04-04-2005 01:44 AM  13 years agoPost 3
rcnuts

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Millersville, Penna

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It really suprizes me this subject hasn’t gotten beaten here on RR. Yes indeed, I had the same problem with a Hyper in a Rappy 50. Drove me nuts trying to get the curves right (or even close) without having to cut the top of the throttle off. It was really kind of strange, I could get the curves right as I went up on the throttle, but at the same point on the curve on the way down the head would over speed. I gave up and just ran a GV-1. Works OK, but I am suspicious the GV-1 isn’t fast enough. Sooooooooo, I just installed a super neat (and cheap) TJ Rev-Max. If the weather wasn’t so crappy, I would have flown today to check that bad boy out, the good 'ol boys from Heliproz say it’s the bomb!! Trust me, when I get that machine dialed in I will post on the performance of the Rev-Max!
Harris,

Hooligan, at large

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04-04-2005 04:07 AM  13 years agoPost 4
Gary

rrVeteran

Crosby, Texas

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I just tried the TJ on my Hyper 50 today and it works great. I had to play with the ATV's a bit to get it dialed in but now it's fine. I've been a GV-1 fan until here recently. I went to the TJ and now I don't have that lag in throttle response anymore.

"Who said obsession was a bad thing"

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04-04-2005 04:15 AM  13 years agoPost 5
TMoore

rrMaster

Cookeville, TN

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What in the world are y'all doing? The Hyper hasn't got the kind of power that warrants limiting the throttle curves, at least mine doesn't.

I'm running an EVO 50 with essentially the same throttle curves that the TT50 was using with the pitch running from -9 to +9 on the pitch curves. I'm using the same Funtech Muffler and there is a good performance bump but it's only about 10-15% over a TT50.

This engine runs good but it isn't magical.

TM

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04-04-2005 09:49 AM  13 years agoPost 6
RCfun

rrApprentice

Denmark

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Anything with blue parts on it must be magical. Im sure of it.


/RCfun.

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04-04-2005 03:06 PM  13 years agoPost 7
BDIS

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Valdosta, Ga

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TMoore, You must not have gotten one of the Magic motors like the rest of us! Send yours back and tell them you want a magic one. LOL

Seriously though the Hyper does put out a substantial amount of power over the old OS 50. All the guys in our lub are running them and they all make very good power. I'm running 11 -11 and still the engine speeds up on inverted and regular climb outs. I just bacep the curve off a little. I'll be trying out a RevMax this week.

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04-04-2005 04:10 PM  13 years agoPost 8
Ron Henry

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Atlanta area, GA - USA

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Put a Revmax on it. It's pretty much the best way to prevent overspeeding while allowing for the most amount of power from the engine. I set idle 1 up to use the revmax and set my throttle curve at 100% accross the board. Normal and idle 2 have normal throttle curves so in case of unit failure, I can fall back to those. With that kind of throttle curve setting and a headspeed of 1970, the machine never bogs. Never.

- Ron Henry
http://kaizenrc.com/forum

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04-04-2005 06:50 PM  13 years agoPost 9
tyuditsky

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Where the grass is green and the girls are Pretty.

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Also running the REVMAX on my Rappy.....the thing is great. Set normal curve to well, normal values, Idle1 100% across the board. I don't use I2 or I3 so that's it for me. I set ch7 to swithc C with 3 positions, bottom being disabled, middle locks the headspeed somewhere around 1650-1700 and up position lets the headspeed get upstairs in the 1900-1950 range.

Having the back up curves is a good idea though, once in Idle1 i accidentally flipped the gov channel to disabled, no dooubt it my mind, she quickly let loose at 100% throttle. flip either switch and quickly regained control. That engine will SCREAM!

And yes, the secret is entirely in the purty blue parts.

Evo90, HyperRaptor, T-Rex

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04-04-2005 06:55 PM  13 years agoPost 10
A. Bundy

rrElite Veteran

Aurora,IL. 30W/SW of Chicago

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TJ on one,GV-1 on the other.I agree that the hyper puts out big power.

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04-04-2005 08:21 PM  13 years agoPost 11
mikefoy6

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Thief River Falls, MN

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I have a MP1 for exausht, I was told that this has a governing effect on the motor. Will adding a TJ or RevMax cause the two to fight each other?

Also I have a 7 ch TX, is that enough to have a RevMax?

thanks

Mike

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04-04-2005 08:39 PM  13 years agoPost 12
u52ah

rrApprentice

Kuwait

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You guys scared the hell outta me! 5 minutes ago I finished assembling the Rappy50v2 with the HyperOS50 (Ofrcourse from heliproz)

I bought TJ Pro with the package, but I will be needing to break-in the engine before I use the governor. Is TJ RevMax better than TJ Pro ?

Any latest TIPS though? curves?

oh and, What would be the recommended NORMAL flight head RPM and intermediate , 3D flights RPM for the raptor50v2 ? anyone?

Thanks!!
Ali

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04-04-2005 10:52 PM  13 years agoPost 13
TMoore

rrMaster

Cookeville, TN

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Maybe I should post a video. I just got my Revlock working on the EVO and can tell you that right now it works OK for some flight modes but not for everything. -9 to +9 is all the machine will handle without gross loading of the disk. In fact I've got it set up for just about no change in RPM from Hover to full collective on either side in the flight modes. Y'all must run your engines a lot leaner than mine.

My engine must have run out of the magical beanstalk beans. Bummer!!

I like the Revlock but I'm going to get one more of them and one more Revmax. Actually the Revmax works OK on my Caliber but it isn't as fast as it needs to be either in terms of keeping up the headspeed. I'm running it wide open on a 37 in a Cal30 and it just barely keeps up. Either one will work but the Revmax has a slight advantage to me.

TM

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04-05-2005 12:54 AM  13 years agoPost 14
mikefoy6

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Thief River Falls, MN

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@Tmoore
Like I said before, My hyper is still SLOPPY rich. I am still breaking it in( about 15 flights on it so far) The back plate is amost cold to the touch and it will sky-rocket with full pitch (and 75% throttle). Maybe mine is just special or something?!?

mike

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04-05-2005 02:34 AM  13 years agoPost 15
ringram2077

rrApprentice

Birmingham, AL

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There are 10 types of people in the world: those who know binary, and those who don't.....

LOL 10 = 2

I have seen a hyper set right and it is a freakin' rocket. It will suck a TT50 up in it's backdraft, no kiddin !!

Richard

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04-05-2005 04:46 AM  13 years agoPost 16
Helinutnz

rrElite Veteran

below 42 South

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yep same here.
I was down on the curves with a +10 top end. overspeeding on full throttle so had to knock it back. Around 40% on the hover.

From the build I put a TJ pro on the model but didn't activate it. Now I have activated it I have a stable rotor rpm that almost never wavers. I guess the top end throttle is still being limited below full throttle as you would expect but I have that power available when loading up the disc in aeros. No need to go taking more pitch.

It has more power than the os 50 sxh for sure. I run the backplate warm only. can hold your finger there all day. 20% cool power red (high viscosity) 15% nitro. Performs well. I use tt 600's.

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04-05-2005 06:09 AM  13 years agoPost 17
TMoore

rrMaster

Cookeville, TN

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Richard,

I plan to be at Huntsville in a few weeks and I'll look forward to all these TT50 sucking Hypers and then I'll pull out a couple of my TT's so y'all can look good.

One question for all you rocket fliers? Can your machines fly around all day long at full stick and not bog or overheat? My Hyper and the TT50's do that now.

I have a feeling I know the answer to that because pulling pitch and going up like a rocket is the easy part, been doing that for years. Flying around all day at full pitch and still having an engine left at the end of the day, that's something else.

TM

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04-07-2005 01:19 AM  13 years agoPost 18
bellecrank

rrVeteran

Canada

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Same experience with my Raven 50 and the OS-50 (predesesor to the Hyper). It had so much power that I had to limit the throttle opening at the top and bottom to about 80% while pulling +10/-10. I am also using the longer Rotor Tech 610 mm 3D blades and the 95mm tail blades. It really rocks and autos like a feather.

So much for the MAS technique

Bert

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