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Skookum Robotics Skookum Robotics SK-360 SK-540 & SK-720 Digital Flybar |
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12-21-2012, 07:56 AM | #1 (permalink) |
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How to add collective pitch to your SL channel
First off this might not be for everyone. But I have had success with it on my 450 helicopter. This could easily be implemented in the firmware, but has not yet for whatever reason.
So what I did was set my sl bank to "always on" This will ensure that the hali bails out in a right side up position. A precursor to this is to ensure you are happy with the way your sl channel is acting. Meaning it pretty much levels the heli (slight drift is normal) 1) program your transmitters momentary switch to be the switch that enables the toggling between the 2 banks 2) Go to your mix screen and mix in some pitch % when this is activated. The way I have it set is I set the sl% to a maximum of 200 that way it reacts fast. please note that when you are in an inverted position and you activate the bail out, the heli will roll over to a right side up position and add positive pitch at the same time so it will be a simultaneous action. If/when they can add this to the firmware thy should have it to that no pitch is added until the heli knows its in the right side up position. Also please note that I have only tried this with a 450 heli. By naturee a 450 due to its smaller disk will have a faster roll response. When trying with largefr helis go up high and if the roll response is not fast enough, consider bumping up the elevator/aileron control rates.
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After every crash just remember .. “We can rebuild him. We have the technology. We can make him better than he was. Better..stronger..faster.” Intro from Six Million Dollar man RIP Roman Pirozek Jr. 1/11/94 - 9/5/2013 Last edited by johnjonfenomenon; 12-21-2012 at 09:25 AM.. |
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12-21-2012, 09:20 AM | #2 (permalink) |
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This is pretty cool! What will the HeliCommand guys bitch about now? LOL!
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12-21-2012, 09:27 AM | #3 (permalink) |
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The advantage they have is theres is implemented in the firmware meaning it does not add collective until it knows its in its level position. since you are doing this via TX and not the firmware, it will add the pitch simultaneously. Lets say for instance you are inverted. You might notice that the heli comes down first a little before turning over and climbing.
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After every crash just remember .. “We can rebuild him. We have the technology. We can make him better than he was. Better..stronger..faster.” Intro from Six Million Dollar man RIP Roman Pirozek Jr. 1/11/94 - 9/5/2013 |
12-21-2012, 11:40 AM | #4 (permalink) |
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=] any chance of a vid, please!
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12-21-2012, 12:20 PM | #5 (permalink) | |
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Quote:
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12-21-2012, 01:42 PM | #7 (permalink) | |
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Sent from my GT-I9300 using Tapatalk 2
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SimStream wireless from your transmitter to simulator http://www.modelguard.com |
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12-21-2012, 01:44 PM | #8 (permalink) | |
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Sent from my GT-I9300 using Tapatalk 2
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SimStream wireless from your transmitter to simulator http://www.modelguard.com |
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12-21-2012, 03:08 PM | #10 (permalink) | |
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Personally I feel this is a good contribution myself. Not a da$%ed endorsement for the HCX lovers here who somehow get off on bashing the Skookum...
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12-21-2012, 03:18 PM | #11 (permalink) | |
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Dead serious. In the scenario I described - and in others where self-levelling is disabled in flight by the SK-720 (such as in the recent auto-resets) the heli WILL go straight to ground if it's inverted and the switch flipped with positive pitch being programmed into the mix. Based on this clear fact I cannot agree with you that this a good contribution. |
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12-21-2012, 03:39 PM | #12 (permalink) |
Join Date: Mar 2007
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=] the real prob here Randy is, if the SK is in inverted SL mode it would self destruct, there is usually plenty of time in a bail out to apply the correct positive pitch, manually.
the gps has all these fancy "get me out of here" functions, we may see some spin-offs to the main unit?
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12-21-2012, 04:55 PM | #13 (permalink) |
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Groucho has a very important point and this is the drawback and risk you take with a vibe sensitive unit. Remember guys this is a manual hack and not a firmware related solution. If it was firmware related, then atleast we could have it so that if SL is disabled due to high vibes, also disable the auto-climb. I too have 3 HC3-SX's, 3 SK 720's and 1 Ikon. I have done this with the ikon. So of course my next logical move was to experiment with the 720. I will have vids as soon as the weather clears. Mind you I am doing this on my 450 and I have tossed that thing around and my light remains always green throughout any 3d manuver.
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After every crash just remember .. “We can rebuild him. We have the technology. We can make him better than he was. Better..stronger..faster.” Intro from Six Million Dollar man RIP Roman Pirozek Jr. 1/11/94 - 9/5/2013 Last edited by johnjonfenomenon; 12-21-2012 at 08:02 PM.. |
12-21-2012, 08:01 PM | #14 (permalink) | |
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I have one, so I know this first hand. The best solution for the TDR's inherently high vibes is an SK-540. |
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12-21-2012, 08:04 PM | #15 (permalink) | |
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For my TDR since I know vibes are going to be high with increased RPM. I use the HC3-sx. My 720 is limited to 550 and below size helis. My Nitro uses a HC3-sx too.
__________________
After every crash just remember .. “We can rebuild him. We have the technology. We can make him better than he was. Better..stronger..faster.” Intro from Six Million Dollar man RIP Roman Pirozek Jr. 1/11/94 - 9/5/2013 |
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12-21-2012, 08:16 PM | #16 (permalink) |
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My 720s are absolutely flawless on my Trex 600 Pro, Trex 700, and 7HV. And that's with some of the worst collective management to ever grace this hobby, LOL!
IMO, flying a TDR at anything below 2000 RPM is an exercise in sheer boredom. That thing was made to haul ass, and you need high headspeed to get it done. It's a bummer though, because this is a heli that I really would like to have SL bail out. It is so ridiculously easy to lose it at those speeds. Does the HC3-SX's SL work at vibe levels associated with those headspeeds? |
12-21-2012, 09:18 PM | #17 (permalink) |
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Yes they do..!!!!
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After every crash just remember .. “We can rebuild him. We have the technology. We can make him better than he was. Better..stronger..faster.” Intro from Six Million Dollar man RIP Roman Pirozek Jr. 1/11/94 - 9/5/2013 |
12-22-2012, 02:23 AM | #19 (permalink) | |
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Essentially, yes, you are correct - it will do what I described - I'm very aware of that, and fly with this in mind. I still use an SK-720 on it though. I have to limit my head-speed to a maximum of 1550 RPMs, and go easy on hard tail-related moves such as pure piros. Especially the blur-piros. |
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12-23-2012, 11:18 AM | #20 (permalink) | |
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Sent from my GT-I9300 using Tapatalk 2
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SimStream wireless from your transmitter to simulator http://www.modelguard.com |
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