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04-06-2009 05:52 AM  9 years agoPost 1
TJinGuy

rrProfessor

Socorro, NM - USA

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Mike and I took a little trip up north today to fly with a guy I met at a heli meet last year. He is one of the Synergy N9 guys up there and brought out a flybar N9. Another guy showed up with a Raptor 50 and then later another couple guys showed up, one with a Rex600N and MA Fury, and the other with a Logo600 and Predator gasser. Here are a few pics

My goals for the day were to get some flying in, have my friend help me with the Raptor and see some big helis tear up the sky. I am happy to report that all goals were reached. The weather was good, cold in the morning and off and on windy but overall good. I got 6 flights on the Rex and 3 on the R30. Overall I would guess there was about 30 flights. The guy with the Logo was tearing it up. I rarely see a bird move that fast, he has skills. The N9 had a new Futaba 520 gyro on it and the owner was getting it setup. The only exciting moment, well except for Mike about loosing it on his Rex, was the N9 running out of fuel. The guy was flying it hard and just forgot. He simply auto'd it down in the middle of the field.

So I got the R30 tuned better and got to tach the blades. Turns out I am exceeding the specs for the woodies. With my tuning it was spinning them at 1920rpm. After some retuning and trying 30%, it was still hanging around 1900 in a hover and likely 100 higher while coming down with low pitch. I need to put on the CF blades as all I could think about while flying it around was the woodies failing and tearing the Raptor into tiny little pieces. Anyhow after some leaning and some pitch adjustments, the R30 is flying strong. My friend said he thought it was about as strong as a R30 can, so that is good. The switch to 30% smoothed things out nicely. I can't say the throttle response is hugely better but it is a little. Overall power is up a tiny bit but not a lot. My friend offered me an Align governor for $30 so I will be trying that out to keep the head speed in check.

Over all I had a great day of flying and hanging out with other heli guys. I need to do this more often.

Edit: Oh yeah and we saw 4 Chinooks and a pair of Apaches fly over. It was just a heli kind a day.

- Chris

Team New Mexico
TJinTech

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04-06-2009 04:45 PM  9 years agoPost 2
Gregor99

rrElite Veteran

Western Wa

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Sounds like a lot of fun. Thanks for sharing. Any guess what the altitude was? If its much lower than Socorro I'm guessing you could feel the difference.

Revolectrix Beta Team

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04-06-2009 04:59 PM  9 years agoPost 3
Melnic

rrElite Veteran

Columbia, MD,USA

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Cool!,
Remind me, what Engine do you have in the R30?

Mine has the older TT.36 and sounds like the engine will destroy itself whenever I run a headspeed higher than 1800.

Do you notice any "pitch up" with the stock wooden plades comming out of a loop or a high speed turn? I'm wondering if they changed them any. Mine came clear shrink wrapped. I flew them about 20 flights but got annoyed as the helicopter would "pitch up" on me too much.

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04-06-2009 05:44 PM  9 years agoPost 4
TJinGuy

rrProfessor

Socorro, NM - USA

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Elevation is actually higher at about 5035ft (says Google Earth), our club field is at 4807ft (again says Google Earth).

My R30 is running the baddest engine available (at least from my knowledge), the OS37. The gear ratio should be 9.56:1 if memory serves, so 1920rpm head speed is 18350 motor rpm and yeah is sounds like it is screaming!

I am running a set of white wrapped woodies but I have no idea what brand, they just came with the heli. The roots are epoxied on but that is all I know. They seem to work well but I really haven't flown then a whole lot. My friend was flying it pretty hard compared to me and he said it flew fine. Next next flight will be CFs though as I simply do not want a woody coming apart on me. As a side note I also use the skytach to tach Mike's Logo500 and he was running in the high 1800s, again with woodies. So he lowered his headspeed a touch. Sure is nice to have control over that. My R30 runs the same headspeed in a hover at 65% throttle as it does at 85% throttle.

- Chris

Team New Mexico
TJinTech

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04-06-2009 06:16 PM  9 years agoPost 5
Melnic

rrElite Veteran

Columbia, MD,USA

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Thx for the info, Yes, If that's the 9T/86T pinion/main gear that's the ratio. That's what mine is.
The TT 36 specs were 16,000 Max "practical" rpm.
The TT 39 says 22,000 max.
OS 37 is going into this when I burn the 36 up or until I finally break down and just get one.

I'm also curious about mufflers. I'd like to see if there is a quiet muff for $50 or less that would fit the OS as well as TT. I'll have to make a post over on the TT forum.

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04-06-2009 07:59 PM  9 years agoPost 6
TJinGuy

rrProfessor

Socorro, NM - USA

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Mine has the Hatori pipe and is freaking loud, especially at nearly 20,000rpm!

The TT web site says the TT39 is only good to 17000rpm, making 1.35HP at 16000rpm.

For reference the OS37 is good to 21000rpm, making 1.4HP @ 18000rpm.

- Chris

Team New Mexico
TJinTech

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04-06-2009 08:43 PM  9 years agoPost 7
Melnic

rrElite Veteran

Columbia, MD,USA

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I could never figure it out. As I researched the .36 and .39, I kept seeing different specs.
Another reason I didn't want to go above 17,000.
http://www.tiger.com.tw/product/9604.html
http://www.rchelibase.com/engines/tt39h.pdf
http://www.thundertiger4u.com/thund...39h-p-7537.html

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04-06-2009 10:19 PM  9 years agoPost 8
tryan02

rrProfessor

Canton, Missouri

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Looks like a sweet time!!!!!! Good to hear you got some 30 in your R30 I think you will learn to appreciate it. Now drop an OS #8 plug in it.

I was screaming with the stock glued root TT woodies (really got to get me a tach) on 15% and noticed the pitchup when I would bank in a turn it would loose all its forward speed. After I went to 30% Like TJ found out the 30% doesn't increase power insanely because your running twice as rich but seat of the pants feel I get a little more power without the motor insanely over revving and a way cooler engine and much easier to tune in temp changes and an OS #8 plug helps out too. As for the carbons I got the smooth no up pitch High banking turns and perfect tracking over changing temps and spool up smoother less wobble till the centrifugal takes over.

Sure would like to get me that OS37 over my 32 but hey it aint broke dont fix it.

I have been considering a govenor!!

I have my curves screwed up went by the manual I have to be careful I get a drop switching to Idleup I am about 65% on the stick in idleup and midstick in normal for hovering. But I did this to get the pitch I wanted in both modes -4/+10 -10/+10.

Darn 6EX goes to normal mode in T/H need the negative for auto's

No Really I am the club President!!!

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04-06-2009 10:55 PM  9 years agoPost 9
TJinGuy

rrProfessor

Socorro, NM - USA

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My friend changed the collective geometry change to get more throw and speed things up. That got the pitch to about 11 on top and -10 on the bottom. He says you can get 12 to -12 if I get it just right and have the throw on the servo. That really helped with autos and it gives me a lot more punch. The engine does have enough power to hold the head speed during a full collective, I mean it drops when you get on it initially but then it holds for the rest of the climb. Works for me

Sounds to me like you just need to run a symmetrical pitch curve on both idle-up and normal. It won't really change much except you will have to get to center stick sooner when you first spin it up or it will bog as the head speed increases. This is important as when the motor dies while in flight, you will likely be in idle-up and need to learn to auto it with full pitch.

- Chris

Team New Mexico
TJinTech

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04-06-2009 11:42 PM  9 years agoPost 10
tryan02

rrProfessor

Canton, Missouri

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My friend changed the collective geometry change to get more throw and speed things up.
So you Know about the servo and blade grip flip?

I get full collective travel from the servo tray with the servo flip so I only need to do a little more work on the head to get the full +/- 12's. I dont need it that hot though I have the swash arms on the inner holes yet.

Dont know if you have the manual but they show Hold curves at -6 to +10.5 So I figured learning auto's with the -4/+10 in normal will do fine.

I have gotten into a bad habit I fly a lot of normal mode. So I set the Normal mode up by the manual to intermediate thats where the -4/+10 came from and of course the Idleup 3d setting +/- 10 full pitch.

In short I have finally outgrown my 6EX Not in channels but in curves I really would like to have Idle 1 and 2 and hold curves.

No Really I am the club President!!!

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04-07-2009 12:00 AM  9 years agoPost 11
tryan02

rrProfessor

Canton, Missouri

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Oh and melnic I am running the cheap tuned pipe TT PV0102 So I dont know if its louder or quieter but I guess it should be more powerful?

When spooled up the blades are almost as noisy as the engine.

No Really I am the club President!!!

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04-07-2009 01:04 AM  9 years agoPost 12
TJinGuy

rrProfessor

Socorro, NM - USA

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I know what you mean on the 6ex. It is a GREAT plane radio and for things like small helis it works well. But once you get more advanced, all the other settings really come into play. Simple things like a timer and sub-trims, and more advanced things like tying functions to switches or combining functions like gyro and collective settings. Then there is the 7th channel (or 10th or whatever). I will finally need all 7 with my new governor.

At some point you are going to have to step up to a bigger one

- Chris

Team New Mexico
TJinTech

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04-07-2009 02:48 AM  9 years agoPost 13
Melnic

rrElite Veteran

Columbia, MD,USA

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If you can hear your blades, your muffler is quieter than mine. Only time I hear mine is when they flutter on a hard loop.
That was the cool thing about the e550, you can mostly hear the blades.

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