Transmitter Dual Rate and Expo Theory, Part 2 of 2

[SphinctersForever]

Good video, but I have flown aircraft for many years, and I find that dual rates and exponential tend to be rather over-rated in utility for an experienced pilot. Once you know your aircraft well and have developed a high level of control skill, your hands and brain together provide the overwhelming majority of control rate adjustment. It's handy to use exponential on an engine throttle because engine speed is nearly exponential to the carburetor venturi setting, but that's about it for me.

[1975antoniosantos]

god video man..

[DoSuPhu]

This is very helpful. Thanks for the graphical explanation. I'm a newbie to rc heli and an engineer so the graphs really speak to me much clearer than the manual. I have a blade 120 SR and a DX6i so I have been searching for a baseline settings.  When are they going to come up with a wearable helmet transmitter that includes a gyro, accelerometer? Except that the throttle still has to be hand-held.

[CyborgPandaBaby]

high, thank you so much for these videos, i had a small understanding of these before, but this really helped. But if i had, say 50% dual rate, and 100% expo, would that input move the servo on the expo line (the curve), but stop half-way through because its on 50% dual rate?

[nivaldin]

What about the expo percentage? what curve will be with 25% and after 75% for example!? Thanks

[theshizambam]

So helpful

[artgsxr1000]

thank you so much it makes so much sense

[gsxrman6004]

Thank you,I understand EXPO now.

[TOPHAT1966GS]

I have to say being an experienced RC pilot that your videos are simple and true, on how the inputs on the TX are communicating with outputs of the RX. On exponential another way to put it is that the servo lags the input on the TX and then at a certain point in the curve the servo will catch up to the input being made on the TX. You give beginners very good insight on basic TX programming keep it up.

[jeepnypitpits]

Thank you for your time gonna save money for my DX6i

[MrJr298]

Great information .Keep it coming!

[hot4plasma]

Excellent video! You really went out of your way with this fine, instructional video.

[crashinbash]

"you wont jerk it off"

[SCAREDBANANA]

Very clear vid, thaks for explaining.

[XbOOsT3rX]

A good video,, thanks.

will wait for next video, Pitch Curve & Throttle Curve theory

:)

[zifir4ik]

Very good and substantial explanations of DR and Expo. I am a beginner and you saved me lots of "Go RTFM" type answers from snobbish "gurus". Thanks for your efforts doing these presentations. I will spread your word)))))

[erkrystof]

@zifir4ik Thank you so much! I know we're high time into summer, so my time is limited, but I do have a list of more materials such as this to go over. Thanks for the compliments!

[boywaimea]

you are really good. thank you

[Johno19691]

Cool cheers

[darksatelite01]

Excellent stuff right here for those that don't know. It couldn't be explained any better.

[Hummel1977]

Is this importantant for learning 3D flying?

[erkrystof]

@Hummel1977 Expo and Dual Rates are important for any type of flying! For 3D, we typically use two rates, and high ones at that to get those control surfaces really moving, but also a bit of expo for those fine tuned movements. In the end, your mileage may vary as to how much expo or rate switching you like - remember they're just tools, you don't have to use them if they don't do anything for you.

[crazykeysersoze]

Thank you for this very informative and well made video. I'm new to RCs and this video helped explain a lot about features on my DX6i.

Well done!

[erkrystof]

@crazykeysersoze You're quite welcome, glad it helped!

[Truebajan]

ALL your videos are great. So you could just use dr like in the old says. But expo gives you the subtle control of flight style. Everyone says with the mini titan. 50% dr and 20% expo. I am thinking to start with just DR, then test expo settings. Great vid cool style and jokes trown in.....:)

[erkrystof]

@Truebajan Thanks! D/R and Expo are definitely settings where although there are some general good guidelines, and it's *generally* safer to start at lower rates and higher expo, it really is a case where your mileage may vary. One man's low expo is another man's OH HOLY CRAP WHERE IS IT GOING!? Thanks again!

[mariandtom]

Great video...I understand expo now!  keep the videos coming!

[warmidgets]

Hey man, love the video's... question.. I just got the MSR and the DX6i. I have adjusted some of the settings and it flies much better but I have 3 questions..

1. How do I adjust for the MSR spinning to the left whenever I take off? It seems as soon as I give it throttle it wants to yaw left... is there a 'mix' setting I could input to fix this? 2. what do the gyro settings accomplish in respect to the MSR?? 3. When I yaw left slowly it spins fine and stays on point, yaw right swings out.

[erkrystof]

@warmidgets Hmm, as for the spinning, you need to make sure when you plug in the battery on the mSR, you let it initialize on a flat surface untouched for a few seconds. Otherwise, the gyro won't initialize properly and can lead to exactly what you're experiencing. At best you can mess with some trim, but that's about it for this heli, there's not a lot of customization available for these parts. Gyro settings on your transmitter I believe will have no effect. Let me know if you want more!

[CABINETMAKERJOHNY]

very informative vid, much easier to understand with graphs ect, man i wish i had you as my maths teacher when i was at school!

[azdrtdog]

Sounds like a fancy term for LAG

[2500deano]

excellent video iv just ordered a dx6i cant wait to get it !!

[erkrystof]

@2500deano Right on, deano, have fun with it!

[dezent]

Great vid, thank you!

[erkrystof]

@dezent My pleasure, thank you for the compliment!

[tlagroix]

Thanks for the vids. Awesome explanation and demonstrations. Just got a DX7 and didn't know exactly what I was getting into. I have a much better idea now. Thanks again

[erkrystof]

@tlagroix My pleasure, and thanks for the comment!

[bsn2fnp]

Sorry, for the double post.

[bsn2fnp]

How much expo did you use, with the servo demo?

[bsn2fnp]

erkrystof, nice video! Question, how much expo did you use in the servo demo?

[erkrystof]

@bsn2fnp I think I may have used 50-75 % expo for demonstrating it on video, since it's hard to 'view' expo from a video, and easier to 'feel' it in flight... Normal Expo usually isn't that high - maybe 20-40 % or so, just have to get a feel for it.

[s2cuts]

Good over all layman explanation of an exponential curve, but... (there's always a critic) you probably could have incorporated the concept of 'slope' or 'rate of change' to more clearly describe what's happening along the curve.

[erkrystof]

@s2cuts Understood loud and clear, s2cuts. I intentionally left that out, but after thinking about your comment, I could have at least put it in as a simple definition to help it click more. Thanks for the critique!

[freestyleAurelio]

great job!

[erkrystof]

@freestyleAurelio Thank you very much!

[stalyoni]

thanks so much for going into so much detail. Its made it a lot easier for me to understand it now.

You are a rebel alright!

[erkrystof]

@stalyoni My pleasure, stalyoni, thank you for the compliments!

[sepelio2006]

Great explanation, we want more videos, thank you from Spain.

[erkrystof]

@sepelio2006 Thanks, seplio, We'll have some more circuit videos on ESCs soon, and some more transmitter stuff after that. Thanks!

[avalanchewholesaleco]

Very well said. I appreciate the very professional tutorial. I have subscribed. Keep the videos coming.

[erkrystof]

@avalanchewholesaleco Thank you very much!

[olteancr]

Thank you so much this is exactly the stuff that I need for my new radio.You are an amazing teacher. Please keep the videos coming you are helping so much new people that try to get into this amazing hobby.

I subscribed, rated and commented on your video !!!

And you deserve it all.

THANK YOU

[erkrystof]

Thanks for the accolades, olteancr! I look forward to making some more videos and articles, and will definitely keep posting them up on my site and youtube as they're completed. Thank you!

[p3x197]

Wow thanks. I did not get expo atall. The graoh helped a bit but when you said how the controlls get numb it clicked

[erkrystof]

Glad to be of service!

[ChefWannabeToo]

oops i forgot......... FIRST!!!!!!!!!!!!

[ChefWannabeToo]

perfect..... now i'll be able to get my msr in the air sooner. thx man im learning so much. keep them coming.

[erkrystof]

Thanks, Chef! We'll hopefully put the DX6 and DX7 specific ones up within a week!