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HomeScaleAircraftScale HeliScale Helicopter Main Discussion › Time for some help Fellas..
07-13-2013 12:11 AM  5 years agoPost 41
doorman

rrProfessor

Sherwood, Arkansas

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Come On Over!!
John, if your at IRCHA, please come by and say Hi... we are always happy to meet and help new people all we can... along with helping each other (spelled stealing each others good ideas!!)
We are all about having a good time and learn from each other..

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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07-13-2013 03:02 AM  5 years agoPost 42
FreeSpirit101

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Lowell, Indiana, USA

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Stan,
I will try to stop in as I am scheduled to IRCHA the 31st. That is dependent upon my mother-in-laws health as she is headed towards hospice. Thanks for the invite.
John

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07-13-2013 11:44 PM  5 years agoPost 43
doorman

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Sherwood, Arkansas

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Hope To See You...
John sorry to hear about your mother in law...there's nothing more important then family.. so all the best to you and yours..

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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07-14-2013 10:24 PM  5 years agoPost 44
Grimracer

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Eau Claire WI

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And closer yet.. Not been flown yet but close.

Thanks to everybody (My lovely wife as well) for your help with this project.

Grim

Michael J Zaborowski

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07-15-2013 11:50 PM  5 years agoPost 45
doorman

rrProfessor

Sherwood, Arkansas

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Nothing Better!!!
Thanks to everybody (My lovely wife as well) for your help with this project.

Michael,

There is nothing that can make this hobby any more enjoyable then a spouse that supports your efforts.. you definetly have a keeper there!!!!!
I can say that I am lucky enough to be in the same boat!!! After 33 years, all that I can say is that she has one hell of a sense of humor

Your machine looks awesome... so just hang in there a little longer and you will have more help then you will ever need to get it airworthy!!!

I don't know if anyone has ever mentioned this to you, but Peter has an excellent account on his homepage about setting up multi blade heads... just remember that his is written around a CCW rotation and yours is CW!!!!! But check it out...I still refer back to it every once in awhile just as a refresher!!
http://scalehelicopters.org/

See you soon, Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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07-16-2013 02:24 PM  5 years agoPost 46
Grimracer

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Eau Claire WI

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Thanks Stan.. She is a peach for sure. Very lucky man that she has put up with me all these years.. (28 of them now). Im also looking forward to hanging out and shooting the.. you know what.. with the gang....

Quick question...

Is it best to set pitch hi, and low, using your TX end points, or ones pitch curve? How critital, or is it at all, to have your mechanical pitch range close to 100% EPA?

Grim

Michael J Zaborowski

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07-16-2013 03:37 PM  5 years agoPost 47
Joel Rosenzweig

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Marlborough, MA - USA

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It's not critical at all.

I tend to use 100% travel in the radio EPA, then use my pitch curve to get the low, mid, high that I want. It's easier to adjust that way, usually.

Joel

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07-16-2013 03:40 PM  5 years agoPost 48
doorman

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Sherwood, Arkansas

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Pitch Travel
Is it best to set pitch hi, and low, using your TX end points

I use the end points to increase or decrease as needed..
With that said, I do like to make my mechanical set up so that I can stay at least 100% both ends, and more is OK..The way I look at it, is that it lets you have the full linear travel of the servo.. it is not important to have both values the same:ex low 120 and high 135 (as needed) which allows you to set a "smooth" pitch curve..
On a lot of the FBL set up's, I am using the "SMALL" wheel that comes with Futaba servos, on all the swash servos.. these seem to let you get within the parameters called for to set them up correctly.. again it allows me to use the full servo travel.
Are you going to use a stabi system on your 500?? I know that the 5 blade head will fly without it... but for the price of a tail gyro now, you can put a FBL system in and it just makes things easier to set up and just all around fun to fly, even if it were to be a little windy!!!!

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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07-16-2013 04:42 PM  5 years agoPost 49
Mojave

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Palos Verdes, Ca. USA

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I try to find the best location possible on the servo arm that gets me close to max pitch at the top end, then I use the end points to fine tune the set up. I also use the vbar max/min collective settings to bring it close. I have found that when I use too much end point adjustment in the radio, the servos act funny, so I try to keep this setting at or above 80%. I agree, it's best to try and utilize most of the servo travel if possible.
Barry

All helis and planes have an expiration date stamped on them...you only find it after you crash!!

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07-16-2013 04:57 PM  5 years agoPost 50
Joel Rosenzweig

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Marlborough, MA - USA

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I'm reading some things that appear to be contradictory, and agreeing at the same time. :-)

Perhaps that means, do whatever you want to get the throw you need.

There are some differences depending on exactly what you do, but, for the purposes of a basic setup that will work just fine, it really does not matter.

If you found that you were getting non-linear throws that actually impacted your precision flying, then you could make some changes to the servo arms and travel volume to make things more linear.

Joel

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07-16-2013 06:18 PM  5 years agoPost 51
Grimracer

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Eau Claire WI

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All great advice. I have a stabliser in the heli and its working SUPER. Or at least to the point of adding the head and fuse.

I also spoke with Gary Wright about it (we hired him last week) and I now have a point of help with my setups too. BUT.. he is a aerobatic pilot and has no or little scale flying under his belt. Still a wealth of info for me...

I have a MONSTER pitch servo (BLS351) so power is not an issue. I do however want to look at the mechanics of the movemnet a tick closer.

Right now.. it is setup per Mr Smooth (Joels) response.

I think........... its ready!

Grim

Michael J Zaborowski

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07-20-2013 03:23 AM  5 years agoPost 52
Grimracer

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Eau Claire WI

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Again.. a pain but I have a question..

Should I set up "normal mode" with 0 or 1 deg poz pitch for spool up? Click into up-1 for a full pitch profile once airborne?

I have heard of others doing this.

Thanks in advance!

Grimracer

Michael J Zaborowski

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07-20-2013 04:05 AM  5 years agoPost 53
Joel Rosenzweig

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Marlborough, MA - USA

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I use one flight mode. You can of course set it up as you suggest. But the question is "why?"

If there is a reason you need or want to set it up that way, then go for it. I think it complicates things, but I'm not aware of the benefit that you think you might get from it.

Joel

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07-20-2013 03:08 PM  5 years agoPost 54
Grimracer

rrVeteran

Eau Claire WI

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Yea.. I suspected that might be the case.. So far in EVERY CASE I have had a bad experience with a multi blade head and the transition from neg to pos. BUT..again.. I don't know whats going on.. I read some place else that its best to setup a full positive pitch profile in normal and then one that offers neg in up-1.

I did some checking and my setup right now transitions from neg-0-+ at just a bit less then 1/4 stick. Man.. This should work just fine...

Time to leave it alone and test it!..

Thanks Joel!

Grimracer

Michael J Zaborowski

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07-20-2013 03:37 PM  5 years agoPost 55
coptercptn

rrElite Veteran

Mesa AZ. USA

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I just had an "Almost" disastrous situation using Flight mode..(Or lack there of) I failed to program my pitch curve equally in all modes on my turbine (as flight modes are not used as no throttle curve etc. is needed) Well, as Murphy would dictate....My first get ready for forward flight I decided to cycle the landing gear... and hit the flight mode switch by mistake (Dumb finger!!)
Anyway the pitch went from 44% (adjusted to hover @ mid stick)to 0 at the flick of an eyelash and the heli "Planted" itself from about 6'.. I was lucky, that bird is built tough!! cuz 45#s was absorbed by the gear. the only major damage was a main gear.
So. my moral to the story here is "If" you are NOT using the flight modes, be sure they are inh. or set all the same..(IE pitch/throttle curves)
And yes it will be ready and flying for IRCHA guys!!!!

Adding video of the "Crash"

Watch at YouTube

Home of the "Sea Cobra".....

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07-22-2013 12:47 PM  5 years agoPost 56
Grimracer

rrVeteran

Eau Claire WI

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Wow.. glad its OK...

Looking forward to seeing it fly.

Michael

Michael J Zaborowski

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07-22-2013 06:21 PM  5 years agoPost 57
doorman

rrProfessor

Sherwood, Arkansas

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Ouch!!!!
Jim, sure glad it did not get hurt too badly...

That gear must be even stronger then we thought!!! Amazing..

Glad to hear she will be at IRCHA.. looking forward to seeing the progress.. actually gonna go look at your latest post now too!!

Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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07-22-2013 08:17 PM  5 years agoPost 58
Grimracer

rrVeteran

Eau Claire WI

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Man.. that video is hard to watch.. ya know its coming..

I found this video and as you can see my N520WH is up and flying.. Well.. kind of!

Watch at YouTube

Enjoy

Grimracer

Michael J Zaborowski

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07-23-2013 03:37 AM  5 years agoPost 59
doorman

rrProfessor

Sherwood, Arkansas

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Great Job!!!
Michael,
You have done a great job!!! Heli looks extremely realistic
The animated pilot and workers add to the overall presentation

See you next week!!. Stan

AMA 2918-Team Spin Blades,,Castle Creations, Unique Aircraft

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08-23-2013 01:39 PM  5 years agoPost 60
Grimracer

rrVeteran

Eau Claire WI

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Update.

The heli is still not in the air but we are ever again closer.

We found that the century swash i was using was not allowing enough blade angle movement for the FBL controller. The century swash only allows around 7.5 to 8 deg of blade angle before the taper under the swash would bottom out on the main shaft. The typical controller needs at least 9deg for the system to operate well.

So.. I am changing the swash. I do have to machine an outer ring for the new swash to convert it from 120deg to 90..

Report back when i can

Grimracer

Michael J Zaborowski

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HomeScaleAircraftScale HeliScale Helicopter Main Discussion › Time for some help Fellas..
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