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ZoomsHobbies . HeliHobby . Ron’s HeliProz South

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Aerial Photography and Video > last picture with a flybar!
 
 
Ben H
Senior Heliman
Location: South / South West , UK

I took this today, it was really windy. it'll be the last picture with my flybar fitted, the conversion came from Gerd at minicopter today have they changed the design? others I have seen (nooobs) have the flybar slot still machined in, mine is solid, well actually it's hollow inside.



Ben.... "what goes up, must come down!"
10-03-2008 12:30 AM
HOMEPAGE  
 
 
Hogster
Key Veteran
Location: Surrey, UK

Looks lovely I'm hooked on flybarless now that I've converted ... will never go back


David
10-03-2008 01:15 AM
HOMEPAGE  
 
 
rerazor
Elite Veteran
Location: Mich.

Ben, I think that is a new head.

Flybarless just makes everything so much easier, especially in transport.
10-03-2008 02:20 AM
 
 
Seablade
Key Veteran
Location: floating around

amen to the transport

"Vini, Vidi, Velcro"
10-03-2008 09:33 AM
 
 
Ben H
Senior Heliman
Location: South / South West , UK

Did anyone notice I had the grips the other way around

The Swashplate was going up to climb instead of down as is the norm for a joker. I've changed it round now, but I wonder if it really mattered? the only differance I can see is that the grip control arm would have been on the leading edge rather than the trailing edge of the blade.

Any thoughts on this?

Anyway, I had a test flight today, blowing about 28mph but gusting to 35+, seemed ok but the profi gains were now way too high and oscillating when in position or horizontal hold, time to plug in the laptop again....

Ben.... "what goes up, must come down!"
10-03-2008 07:08 PM
HOMEPAGE  
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

Ben, congrats!

Have you never ever experienced bumps with alt hold engaged in windy conditions?

Whats your profi settings on alt hold, pressure delay, gain etc?

Thx
Chris

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
10-03-2008 07:38 PM
HOMEPAGE  
 
 
rroback
Elite Veteran
Location: Irvine (UCI), Ca

you won't miss the flybar. Your head does look nice, without the cutouts. Don't use hold in wind, use damping. much better.

Rhett... I can't fly, luckily the HC Profi Can!
10-03-2008 07:40 PM
 
 
Ben H
Senior Heliman
Location: South / South West , UK

Before I went flybarless it was quite sorted as far as gains are concerned, but today it was real bumpy in the windy gusts in hold mode, it was better in damping (thanks Rhett) but I think that now I don't have the flybar, the heli is much more responsive (I had extra flybar weights before) and therefore the profi is correcting altitude / attitude quicker, so needing less gain. thats the theory anyway, what do you think?

When reading the instructions again today, I picked up on something I missed before. I had originally set my pitch curve in my transmitter, and left the control travel and coll pitch offset in the mixer tab as standard. When I re read the book, it implied that the collective pitch should be left at 100 / 100% in the TX and travel and centre point adjusted in the MIXER tab.

I did it the second way this time, using the HC software to give me the +9/-4 degrees. How did you guys set up your pitch? Rhett, it looks like you did the same, the "may6" HC file you sent me has similar control travel settings.

Chris, your welcome to my HC file, either before of after flybar, but it's a bit of a work in progress

By the way, your right about the ease of transport, way cool

Ben.... "what goes up, must come down!"
10-03-2008 08:03 PM
HOMEPAGE  
 
 
rerazor
Elite Veteran
Location: Mich.

I have my pitch curve set as 0, 25, 50 75, 100 and then adjust the offset to where I want my 'zero' pitch.

My control travel for collective pitch is set at 90 in the software.

Now you have me confused.
10-03-2008 08:21 PM
 
 
Ben H
Senior Heliman
Location: South / South West , UK

Sorry for the confusion

I have the tx pitch curve set to a straight line -100% to +100% in my 14MZ (same as 0,25,50,75,100)

that was giving me -11 degrees to +11 degrees, so I reduced the collective control travel to 57 to give me -7 to +7 degrees

Then I adusted the offset to 58 to give -4 to +9 degrees pitch at the blades.

It sounds like we did the same? didn't we? now I'm confused

Ben.... "what goes up, must come down!"
10-03-2008 08:37 PM
HOMEPAGE  
 
 
Ben H
Senior Heliman
Location: South / South West , UK

Here is the head with the grips the right way round



Ben.... "what goes up, must come down!"
10-03-2008 08:47 PM
HOMEPAGE  
 
 
rerazor
Elite Veteran
Location: Mich.

Now I need to go hook up the software and check it again.
10-03-2008 08:52 PM
 
 
rroback
Elite Veteran
Location: Irvine (UCI), Ca

I think the big issue is that if you have high throw on your radio, but low throw on the profi, then the profi has only so much room to correct. You basically want to give the profi lots of control ( throw), and reduce it for yourself on your radio. In testing, I got to a point where the setting were very low on the profi, and high on the radio, and the result wasn't good.

Rhett... I can't fly, luckily the HC Profi Can!
10-03-2008 09:39 PM
 
 
rerazor
Elite Veteran
Location: Mich.

Rhett,

So your saying that you upped your cyclic travel in the profi to closer to 100 and lowered your TX travel to approx 50?
10-03-2008 10:04 PM
 
 
rroback
Elite Veteran
Location: Irvine (UCI), Ca

well, on the last file I've got, my throw is 75 percent. I'm not sure if 100 is the key, a lot depends on your installation (especially servo arm length). My servo arms ( on maxi 2) are longer then most, so my throw percentage will be smaller. On my other maxi, the servo arms were smaller, and I did use a higher percentage. What numbers are you guys at?

Rhett... I can't fly, luckily the HC Profi Can!
10-03-2008 10:13 PM
 
 
Ben H
Senior Heliman
Location: South / South West , UK

Rhett,

If that is how it works, then what use is the collective offset value, wouldn't you just set up the max/min pitch in the tx as if there was no profi?

If you reduce the tx travels, when you do the SET button procedure at min collective, should you do this before or after reducing the tx throws??

The instructions aren't very clear on how the profi is using all the different settings and setup procedures is it

Any chance of sending me your 14MZ and latest HCP files to see?

Ben.... "what goes up, must come down!"
10-03-2008 10:33 PM
HOMEPAGE  
 
 
rerazor
Elite Veteran
Location: Mich.

Just curious how many degrees of cyclic are you guys running?
10-03-2008 10:42 PM
 
 
Ben H
Senior Heliman
Location: South / South West , UK

Here, the first pic shows the settings I had with my flybar, and the pitch curve setup in my TX to give +9 /-4 pitch

The second is with the TX set to -100% to +100%, and the software setup to give the correct pitch



I think we are only talking about the collective, not the aileron / elevator.

Ben.... "what goes up, must come down!"
10-03-2008 10:43 PM
HOMEPAGE  
 
 
Ben H
Senior Heliman
Location: South / South West , UK

rerazor, my cyclic is on 10 degrees aileron and elevator, what you got?

Ben.... "what goes up, must come down!"
10-03-2008 10:44 PM
HOMEPAGE  
 
 
rerazor
Elite Veteran
Location: Mich.

7-8degrees for ele/Ale.
10-03-2008 11:23 PM
 
 
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Aerial Photography and Video > last picture with a flybar!
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