RunRyder RC
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1787 views Post Reply
05-21-2007 04:01 PM  13 years ago
Topic Vote0Post 1
Turk10mm

rrApprentice

Houston, Tx USA

MyPosts All Forum Topic
Stratus finally running
Well I spent about 8 hours yesterday going through the setup of the Stratus I bought from a guy at Mayday. Man, was it not setup right.

Anyways, I run futaba, can any of you guys give me some of your Swash AFR settings?

Secondly, who in the world designed the silly throttle servo geometry. That is the worst with cantilevered setup. Can someone shoot me a decent closeup of their throttle servo setup to a YS throttle body? We finally got it by using a large futaba wheel on the outermost hole, but it makes the geometry all funky (read funkier than the design.) It isn't right, and I'd like it to be right. What hole in the throttle body arm are you using.

Lastly, I bought Futaba S9351 servos for my cyclic. Don't bother using the Futaba studs for these. They don't fit. I even bought a second set because I thought maybe the guy that owned it before me stripped them out. The second set didn't fit either. I borrowed a JR stud and it fits correctly. Grrr

So anyways, I spent all day getting her setup and finally had her buttoned up enough to start up. I filled the tank, hooked up the glow, started her up with no problem. She idled like a champ. So now I'm getting the hankoring for a little hover. I take the heli out to the line set it down turn around only to walk away with my transmitter battery being too low voltage...

Sigh.. It was 7ish and starting to get dark so I'm going to have to put the maiden flight on hold till next weekend.
SHARE  PM  EMAIL  Attn:RR  Quote
05-22-2007 03:31 AM  13 years ago
CitationX

rrApprentice

Danville, IN

MyPosts All Forum Topic
Throttle Linkage Geometry
I totally understand what you mean about the throttle geometry issue. I am sure there are many guys out there that have achieved a workable solution. It is quite a bit different than what I am used to on the Extreme set up but it's manageable.

I saw a photo of a Stratus in someones gallery recently where they had fabricated what looked like a new composite bracket where the on/off switch is located. The bracket appeared to be made of the same material as the main frames. It was taller than the stock switch mount bracket in that it accommodated the switch on top and the throttle servo below it. That way the linkage was a direct horizontal shot to the carburetor arm. I just wish that I could remember who's gallery I saw it in!

If someone knows what I am talking about feel free to post the gallery link.

Thanks

Oops! Just found it. Have a look:
http://www.runryder.com/rrpw.htm?d=...come.txt&a=0#42

Saw this in "misio's" gallery.

Thanks misio.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-22-2007 04:18 AM  13 years ago
marc8090

rrElite Veteran

Long Island, N.Y.

MyPosts All Forum Topic
There's nothing wrong with the throttle linkage geometry. You just have to understand that the servo arm does not need to be 90 degrees to the body of the servo when the arm is 90 degrees to the linkage. The servo arm should be angled up slightly at half throttle and the carb arm angled down slightly so that the LINKAGE forms a 90 degree angle with both arms at half throttle. Do that and it works just fine. As far as the JR studs fitting, that's because the 9351 and 9451 use a 3mm thread instead of the traditional Futaba 2.6mm. Be grateful that JR is 3mm thread, otherwise you wouldn't be able to use those servos because there wouldn't be a stud for them.
SHARE  PM  EMAIL  Attn:RR  Quote
05-22-2007 05:07 PM  13 years ago
Turk10mm

rrApprentice

Houston, Tx USA

MyPosts All Forum Topic
Thanks, there's a few more pics in there that give a pretty good idea how to do it. Unfortunately, it also looks like I'd have to make some serious mods to do that.

Thanks for the link, and thank to Misio for stashing good pics in his gallery.
SHARE  PM  EMAIL  Attn:RR  Quote
05-22-2007 05:12 PM  13 years ago
CitationX

rrApprentice

Danville, IN

MyPosts All Forum Topic
I am going to check my set up against marc8090 statements.
The servo arm should be angled up slightly at half throttle and the carb arm angled down slightly so that the LINKAGE forms a 90 degree angle with both arms at half throttle. Do that and it works just fine.
I know that when I set mine up it required a bit of thought. He has simplified things considerably.

Thanks for the input marc.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-24-2007 07:59 AM  13 years ago
alfred

rrVeteran

Australia, New South Wales, Mid North Coast

MyPosts All Forum Topic
Have you guys got a converted Stratus?
Because I have got one (full kit) and I can't see where the problem is.
SHARE  PM  EMAIL  Attn:RR  Quote
05-24-2007 12:12 PM  13 years ago
CitationX

rrApprentice

Danville, IN

MyPosts All Forum Topic
Mine is the Stratus FAI version, i.e FAI head and tail rotor on right-hand side. It is not converted.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-24-2007 02:49 PM  13 years ago
GM1

rrElite Veteran

Tallahassee, Florida US

MyPosts All Forum Topic
HUH?
My throttle pushrod is pretty much vertical and was among the easiest of all models I ever set up. Do you have a picture of the funky geometry?
Gordie
On a dog sled team, if you're not the lead dog, the view never changes.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-24-2007 03:37 PM  13 years ago
Turk10mm

rrApprentice

Houston, Tx USA

MyPosts All Forum Topic
i'll have to take one, it definitely isn't easy, and it sure as HECK isn't 90 degrees.

and yes, it is a conversion from a fury extreme.
SHARE  PM  EMAIL  Attn:RR  Quote
05-24-2007 04:01 PM  13 years ago
GM1

rrElite Veteran

Tallahassee, Florida US

MyPosts All Forum Topic
Picture
I took a picture of the linkage on my conversion. Looks straight forward to me. Hope you can see it.
Gordie

On a dog sled team, if you're not the lead dog, the view never changes.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-24-2007 06:06 PM  13 years ago
StEdgar

rrNovice

Las Vegas, Nevada

MyPosts All Forum Topic
Throttle Linkage.
Mine is exactly like yours Gordy. I saw a picture earlier in this thread that showed a different servo location. I don't know what they were trying to show but it wasn't Stratus setup.

BTW didn't you have a contest you sttended last week end? How'd it go?

Steve
Mike Mass invented CCPM, Inverted Flight and he did it all before 1980
SHARE  PM  EMAIL  Attn:RR  Quote
05-24-2007 07:49 PM  13 years ago
carcrasher

rrElite Veteran

east coast

MyPosts All Forum Topic
the servo in the pic is not the throttle servo but a fuel mixture servo. the throttle servo is on the left of the heli not the right. I had a conversion and it worked fine. Nothing funky about the set-up. Good luck with the stratus. It flies really nice.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-25-2007 12:37 AM  13 years ago
GM1

rrElite Veteran

Tallahassee, Florida US

MyPosts All Forum Topic
AHA!!
The picture earlier in the thread is NOT the throttle servo. It is an in flight mixture control servo. Nice call. I never even looked at the picture before.
Gordie
On a dog sled team, if you're not the lead dog, the view never changes.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-25-2007 02:44 AM  13 years ago
StEdgar

rrNovice

Las Vegas, Nevada

MyPosts All Forum Topic
Pictures
Yea, I just went back and looked at all your pictures. That is a nice setup you have.
Mike Mass invented CCPM, Inverted Flight and he did it all before 1980
SHARE  PM  EMAIL  Attn:RR  Quote
05-25-2007 03:40 AM  13 years ago
CitationX

rrApprentice

Danville, IN

MyPosts All Forum Topic
DOH!
Gordie,

Just out of curiosity, the picture you posted shows the linkage and both arms (servo wheel and throttle arm) pretty much at 90-degrees to each other. Is that at mid-stick by chance? I am also curious about the needle valve settings on your YS. While we are talking throttle set-up on the Stratus I might as well try to get as much info as I can acquire!

Thanks

P.S. I do stand corrected on the MIXTURE control servo in the link I posted. Heck, I wasn't even on the correct side of the freakin helicopter for @#$% sakes!

Good catch!
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-25-2007 05:04 PM  13 years ago
GM1

rrElite Veteran

Tallahassee, Florida US

MyPosts All Forum Topic
Set up
To be honest,I just grabbed the servo arm and set it to the right spot for the picture. I believe that the arm is 90 degrees when the carb is open 40 degrees.
Gordie
On a dog sled team, if you're not the lead dog, the view never changes.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
05-25-2007 05:07 PM  13 years ago
Turk10mm

rrApprentice

Houston, Tx USA

MyPosts All Forum Topic
GM1, thanks for the picture. I'll look at mine tonight and see if I can get it figured out.
SHARE  PM  EMAIL  Attn:RR  Quote
05-26-2007 01:46 AM  13 years ago
StEdgar

rrNovice

Las Vegas, Nevada

MyPosts All Forum Topic
Stratus Servos
Gordie,
With the Futaba 9CHPS Super I am installing in my Stratus using S9252 servos I have a question about centering. When I have the radio on and everything centered on the sticks with no trim the servo wheels will not go on so my Pitch, Roll, and Elevator links are at a perfect 90 degrees to the Link like the manual (Stratus) dictates. What would be the correct way to correct this?

Thanks
Steve
Mike Mass invented CCPM, Inverted Flight and he did it all before 1980
SHARE  PM  EMAIL  Attn:RR  Quote
05-26-2007 01:59 AM  13 years ago
StEdgar

rrNovice

Las Vegas, Nevada

MyPosts All Forum Topic
Found the answer to servo Centering I think
I just read a post in another thread that indicates you can use Sub trims for moving the center point of a servo. I'm goin gto use that. If I'm doing it wrong please let me know.

Thanks
Mike Mass invented CCPM, Inverted Flight and he did it all before 1980
SHARE  PM  EMAIL  Attn:RR  Quote
05-26-2007 03:02 AM  13 years ago
GM1

rrElite Veteran

Tallahassee, Florida US

MyPosts All Forum Topic
Nope
I NEVER use subtrims. Each arm of a Futaba servo wheel centers slightly differently on the splines so you can nearly ALWAYS turn the wheel and find one that lines up correctly without subtrims. I only use the big wheels and they line up nicely but only one way.
Gordie
On a dog sled team, if you're not the lead dog, the view never changes.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <    ( 1 )     2     NEXT    >> ] 1787 views Post Reply
Print TOPIC

 4  Topic Subscribe

Monday, January 18 - 12:03 am - Copyright © 2000-2021 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online