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Old Dec 16, 2009, 11:45 PM
shredding Ultracote since 2009
routemech's Avatar
Frederick CO
Joined Jul 2009
338 Posts
Quote:
Originally Posted by tjhawker View Post
IMO - Start at 2-3% right rudder to full throttle and increase as needed. If you need help making the mix or getting the mix setup right, let me know. I'll probably be down around that area at some point throughout the weekend. I know there's other guys at LAMA who use that mix and would probably be glad to help as well.
Thanks for the help I really appreciate it, I will try the 2% to start...

I hope to make it to LAMA tomorrow around 11-12 to test it out (Some lunch time flying), I need to take advantage of the nicer weather. I will probably be out this weekend also.

Mike
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Old Dec 17, 2009, 01:25 AM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
26,845 Posts
Hi Guys...

Finished mine completely today...I have my receiver mounted on the battery tray, and onto the wing tube, and with a Thunderpower 4S 3850mAH 30C pack, it balanced right at 110mm with the pack about a 1/2" in front of the receiver. So...I little room for moving the CG back if I want, but figured I'd start where the instructions said.

Now I just have to get some decent weather to maiden her... The rain is letting up, but the weatherman is saying thick fog in the morning...maybe once it burns off, the weather will co-operate and I'll get to fly. I'm really having withdrawal symptoms, as I haven't flown in more than a month, between a bad cold, and the weather...

Now I have to decide...finish my 70" Slick, or build my Red 47" Edge, or build up a new fuselage to replace the damaged one for my red 55" Yak..the wings are ready to go, just have to put the fuselage together.... decisions, decisions, decisions...

SteveT
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Latest blog entry: My hangar...
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Old Dec 17, 2009, 05:54 AM
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starzen's Avatar
USA, FL, Stuart
Joined Jul 2009
2,723 Posts
what starts with 1Z, originates in TX and comes triple boxed ?

and because it will arrive in a few days it doesnt count as a christmas present
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Old Dec 17, 2009, 07:23 AM
Fear is the mind killer
BustedBlades's Avatar
United States, LA, Lafayette
Joined Dec 2008
1,245 Posts
can someone please explain what throttle-rudder mix is for and how you know if you need it?

Thanks,
Matt
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Old Dec 17, 2009, 07:48 AM
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Lonelasso's Avatar
United States, TX, Austin
Joined Dec 2006
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Quote:
Originally Posted by BustedBlades View Post
can someone please explain what throttle-rudder mix is for and how you know if you need it?

Thanks,
Matt
Adds additional (without adding a washer or 2) RIGHT thrust to help with hover
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Old Dec 17, 2009, 07:52 AM
Fear is the mind killer
BustedBlades's Avatar
United States, LA, Lafayette
Joined Dec 2008
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so i assume it adds a little right?

How does the DX7 mix this? linearly? Step (25,50,75,100%)
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Old Dec 17, 2009, 08:02 AM
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United States, TX, Austin
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Originally Posted by BustedBlades View Post
so i assume it adds a little right?

How does the DX7 mix this? linearly? Step (25,50,75,100%)
Program mix....don't recall if 1-4, or any/all can be used. 1% steps
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Old Dec 17, 2009, 08:11 AM
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Fort Collins Colorado USA
Joined Oct 2007
2,393 Posts
Quote:
Originally Posted by routemech View Post
Thanks for the help I really appreciate it, I will try the 2% to start...

I hope to make it to LAMA tomorrow around 11-12 to test it out (Some lunch time flying), I need to take advantage of the nicer weather. I will probably be out this weekend also.

Mike
See you there!

Joe
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Old Dec 17, 2009, 08:48 AM
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Doc Austin's Avatar
USA, FL, Largo
Joined Dec 2005
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Quote:
Originally Posted by lonelasso View Post
Adds additional (without adding a washer or 2) RIGHT thrust to help with hover
Yes. Old school pilots are more comfortable making thrust adjustments than playing with mixes. It's simply a matter of having always done it a certain way and being too stubborn to accept the new ways. I'm getting better about it, but getting older just sinks you deeper into not wanting to change.

I could never figure out why why old people are so stubborn to acdept the new ways when those new ways make life easier, but getting older is bringing a new understanding.

Sometimes you can't get out of it like in the case of planes balooning on landing. You can take out some downthrust, but then it screws up the balancein hovering. It's much the less of two evils to add a low/throttle/down elevator mix because it only comes in at low throttle. This mix also makes the plane fall much more vertically on power offdownlines. Of course, we never did it that way when we were you studly turks, so it can't be any good. Right?

I can't believe I am saying this. It is hard to accept the world has changed so much I no longer recognize it. This stubborness has really held me back. I know for a fact that taking out the down thrust killed any chance I had of getting a good hover. As soon as I left the down thrust alone and used the low throttle/down elevator mix to stop balooning, my hover instantly got better. Set up is absolutely everything. You need a superb airfame, but a bad set up can still ruin it.

It's all down to a preferance. The thrust on these planes are usually dead one, but I am more comfortable doing less work with the rudder to keep the plane straight in harriers and such. Guys like Tyler just fly the plane and can put it where they want it without thinking. Old guys like me aren't as sharp on the rudder and need a plane that tracks perfectly and isn't affected by torque and P factor as much. I dial those things out with a little thrust.

Of course, this is probably wrong, but whatever works for you is right. Mostly I trim the plane to overcome my own weaknesses. Why not? Let the plane do the work instead of fighting it and hanging on the whole flight.
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Old Dec 17, 2009, 08:53 AM
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USA, FL, Largo
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Quote:
Originally Posted by lonelasso View Post
Program mix....don't recall if 1-4, or any/all can be used. 1% steps
I believe on the DX7 there are several pre-mixes (six, I think) that you can set to do anything you like. The Futaba 7C has three, but it really needs more.
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Old Dec 17, 2009, 08:59 AM
Fly Low or you'll never know!
RC4x4's Avatar
Thornton, Colorado
Joined Jul 2002
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Quote:
Originally Posted by jadamian75 View Post
See you there!

Joe
What ever!
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Old Dec 17, 2009, 09:24 AM
Fear is the mind killer
BustedBlades's Avatar
United States, LA, Lafayette
Joined Dec 2008
1,245 Posts
thx guys!
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Old Dec 17, 2009, 09:29 AM
Test your skills....fly IMAC!!
sun.flyer's Avatar
Swanton, Ohio
Joined Feb 2005
7,990 Posts
Quote:
Originally Posted by lonelasso View Post
Program mix....don't recall if 1-4, or any/all can be used. 1% steps
Correct, the DX-7 only offers linear mixing (no curves until you get to 9303's).

Any of the open mixes will allow you to put in a throttle (master) and rudder (slave) mix. Start with a low percentage at first and adjust as needed. Beats taking the cowl offer everytime and adding spacers/washers/standoffs to adjust the thrust angle.

Tim
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Old Dec 17, 2009, 09:45 AM
Fear is the mind killer
BustedBlades's Avatar
United States, LA, Lafayette
Joined Dec 2008
1,245 Posts
It is hard to accept the world has changed so much I no longer recognize it.

thats why I gave up watching the news.
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Old Dec 17, 2009, 10:30 AM
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USA, FL, Largo
Joined Dec 2005
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Quote:
Originally Posted by BustedBlades View Post
It is hard to accept the world has changed so much I no longer recognize it.

thats why I gave up watching the news.
Uhhh, well the news just makes me angry.
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