John, the RQly & TQly is the packet quality, so as you say how many packets are lost, or retries had to be done, or retransmissions. Thanks again for a great video.!
I'm the Multi Dev and came across this video. The documentation for this protocol is located here: github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/Protocols_Details.md#omp---77 . RSSI=TQLY is the % of received packets from the model by the Multi module (max=100%, min=0%=connection lost), it is NOT how well the model is receiving the module signal since this information is not shared by the receiver on telemetry. A1 and A2 are the battery voltage as you point out. A2 is showing only good telemetry packets voltage values, while A1 shows everything and therefore could contain some small errors. You MUST calibrate A1 and A2 based if you want something meaningfull, the how to is described in the documentation link above. If you like what I'm doing don't forget to show your appreciation: github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/docs/Donations.md Pascal
I came here to understand how to set up alarms when battery voltage is getting low. You seem to know how to do it. May I suggest to publish a video about that soon? Nice vid thx
Hi John, Another great helpful video, would I be right in assuming If you copied one model setup from a radiomaster 16ts sd card to another radiomaster 16ts sd card it would clone the same setup
Basic foundation/layout would be the same, but because helicopters are so mechanical in nature, there is almost always fine tuning involved since servo centering & pushrod geometry will almost always be different.
dyuno for the micro 6ch helicopters that come with the rubbish chargers, could i just time how long it takes then take it off a couple minutes before and it will be charged perfectly
I can tell wait to get my TX16s and start learning more about open protocol .. thanks for all the great videos ! Question - will I need to add anything else to my TX16s other than some software updates and following your videos about how to add the OMP M2 config to the tX ?
Check the firmware versions first - the latest batches being shipped may already have the latest, but if not, then yes, you'll need to update the multi-module firmware.
John. While waiting for my 16ts to arrive. I know open tx is a minefield of learning curves and this radio has took the world by storm for quality and price. I now fly on jeti. Just love this radio. I was wondering if you can do the same with open tx as you can with jeti. Share files on open tx from one radio to the other. Ie. Can you share the model setup. With jeti if I copy the jsn file from the model folder on the sd card and share it to some who has a jeti tx it clones the full setup on their radio. Then they can adjust settings if they want to. Just thought it would help some out with models like OMP. I really enjoy watching all you videos. Always look forward to the next one. TH-cam has replaced my tv programs since this pandemic hope you are all safe the other side of the pond.
Hi John, I've got a question about a low voltage indication for a M1. Since the M1 is such a success, I can't get hold of a M1 with an OMP protocol anymore, especially in Europe. All they offer is a BNF version with S-FHSS. I learned from your books that you may not exhaust the LiPo battery too much. So here is the question: Is there a smart way of detecting the battery voltage during M1's flight when a S-FHSS protocol is being used? Thanks for answering and the very well illustrated books!. Wim.
Yep, the way we've been doing it for years - time your flights - still the best way IMO as I state on my LiPo battery page: www.rchelicopterfun.com/lipo-batteries.html Telemetry is only a tool and honestly on little micros like this, a totally unnecessary one. It's a cool feature to access if you have it, but certainly not as convenient or hassle free as just timing your flights.
I cant get this to work with my m1 4in1 futaba protocol. Im using a zoro with external 4in1 unit i cant get it to discover any sensors and i dont want to use the OMP protocol because of the locked curves and rates
I found that a blade nano s2 has telemetry when I bind it to the tx16s but I would constantly hear "telemetry lost" and then "telemetry recovered" whenever I get like 10 meters away or more. I'm hopeful it works better on OMP helis
It's been my experience all micro's have pretty low telemetry signal strength transmission. Nothing like full range receivers do. You also lose out on antenna diversity with little single wire antenna micros so you'll find you might have a high RSSI signal in one orientation and then turn the heli 180 degrees and it drops in half and the alarm sounds. In short, you generally have to lower your RSSI signal strength alarm signal limits on micro setups. Default RSSI signal strength alarms in OpenTX is 45 (low) & 42 (critical). I will usually lower those to around 30/25 with micros otherwise as you said, the warnings are sounding all the time. On the M1 at the default 45/42 settings, I found the range is around 100 feet (average) before the warnings start in certain orientations. Lowering it to 30/25, I never get them. Of course still do your range checking to confirm you are not at the limit of RF control signal as well.
Hey John! Just came across your TH-cam channel a few weeks ago loving the videos and information! I have a question for you I used to fly a trex 500 ( not very good) I wanna get back into it. I'm looking at getting the devil 420/ 505 or you recommend I go the omp route?
OMP make small helicopters (the m2 is swinging 180mm blades, the M1 125mm blades) so you can't compare them to a 400 or 500 size machine. If you want a smaller/micro size collective pitch RC helicopter, then OMP's are amazing. If you want a larger heli, then they are are not the right fit (literally). 🙂
@@Rchelicopterfun thanks for the reply! Are the smaller helis harder to fly? Or go stay the 500 route and keep practicing? I am also in northern bc, from your videos I take it Williams lake 100 mile area?? Once covid is over would love to get some flying lessons in!
@@anthonypsantos It depends on your definition of "harder to fly". The smaller the heli, the less mass, and thus less inertia it has. Smaller helis are therefor more reactive and "squirrely" as they respond much faster and to a larger amplitude to every control input or disturbance. Basically everything is sped up. This is why smaller helicopters don't have that wonderful fluid feeling or predictability of larger machines. OMP has managed to filter a good deal of that low inertia squirrellyness out with their stabilization algorithm, but it still isn't a large heli - physics will always overshadow human ambition. The plus with micros that many consider "easier" is they are not nearly as intimidating. If you crash one, chances are it will survive and even if you do manage to bust it up in a high energy impact, the total repair costs will be less than a single set of 500 size blades. Location: Near Valemount/Mt.Robson.
@Jake Winger, not sure which of my four eBooks you are asking about, so here's the link to my eBook sales page which lists them all and you can click on the specific eBook/s you are interested in to get more information about each: www.rchelicopterfun.com/rc-helicopter-e-books.html
Now I am really considering to buy one of those TX16s‘s. They seem pretty nice, but I‘m a bit scared of the unlimited functions 😂 My Futaba T6K V2 is way easier, but therefore there are no „complex“ settings. Can you recommend the radio?
As I always recommend to anyone who is pondering the "should I make the switch to OpenTX" question; spend some time on OpenTX University's website to get a basic idea of how it works along with the learning curve involved. I liken OpenTX vs. traditional computerized radio operating systems to that of Linux vs. Window's or Mac OS. Both are powerful open source systems and like Linux, OpenTX is a "nerds" operating system; and I mean that as a complement. I know more people that have fallen in love with OpenTX and would never go back (again like Linux users), but I also know a few who absolutely hated it and could never figure it out. As for the Radiomaster TX16S if that's the OpenTX radio you are considering along with it's latest variations such as the MAX; as I indicated in my review on it, and as so many others have also come to the same conclusion... It's superb! In my opinion, it's the best RC radio of 2020 and even the best over the past several years.
What's your RSSI min when flying in a room? I get low RSSI warnings a lot when about 2m away (min being as low as 27 sometimes). Yes, I did the frequency tuning.
Yes, the RSSI reading on these little guys is quite weak even though the range seems to be perfectly fine. You have to dial down the alarm threshold if you don't want it sounding all the time or just turn it off. With that said, the values I'm getter are not quite as low as yours. I can get about 20M or so away before it gets down into 20's. I've got my low alarm value set to 12 and critical set to 10 which seems to be working fine.
Completely off topic, but noticed you use the the X12s I've updated mine to the latest opentx firmware, now I cant select the external antenna work fine but with limited range on the internal, do I need to backdated it, rather than the most modern
Sounds like a question for the OpenTX development team. I have no idea in other words, but certainly if it's not working correctly with the latest release, I would revert back to the previous version you were using.
@@Rchelicopterfun yup, the last up date was 2.3.8. Major update for horus radios. I'm running 2.3.10 it seems to more focused on the jumper series tx18 T16 ect. Will have a play with it this afternoon Gives me the hebbies everytime I plug it to the computer. Lol thanks for your work and great channel. From here in little New Zealand
I'll presume you are asking if Spektrum (DSM protocol) can extract telemetry from OMP's control board when using a DSM receiver with any of OMP's helis. If so, the answer is no. Telemetry information is only transmitted through OMP's built in RX using their RF protocol.
@@Rchelicopterfun If I use an R-XSR FRSKY, will it give me the 2s battery voltage on telemtetry? Thinking of getting an M1 Orange Futaba version + T16s maxx + R-XSR for full telemetry.
If you have no previous experience with any collective pitch RC helicopters, I would actually not recommend either (they are fairly advanced small collective pitch helicopters after all), but that is your call. If you are getting an instructors help, that is different of course but I suspect you are going the self-learning route. As for size, that is totally dependent on the size of the flying area you intend to fly it at the most. The M2 for example is too big for the average size yard (at least if you want to have any fun with it). The M1 on the other hand is a better size for yard practice.
John. I have a question. What difference did you notice flying 2 blade vs 3 or 4 blade setup, for example on a scale heli? And do you need to get 3-blade setup on a tail as well?
@Roman That's a big question and topic. The 100 foot view is there is a marginal increase in stability and "air grip" and there tends to be less blade lead/lag induced vibrations while spooling up or down when there are more than two blades in the head. This comes at the cost of efficiency, increased drag, shorter flight times, increased weight, increased current draw which produces more heat in the power system, more reactive torque so the tail rotor is working harder and tail blow out is more common, higher servo loads, higher parts count, higher cost, more difficult to track the blades, and in some cases more difficult to transport unless you remove the blades In short, practically no worthwhile benefits considering all the added issues & hassles. They do look cool statically of course.
@@Rchelicopterfun John. But after all those scale things you talked about. I will stick to my beautiful trex 500. This guy took me to the air and I love him so much that I dont need any other heli to keep my soul going!)
John. Got a question. I have trex 500 with 425 mm blades. I am a sport flyer (no 3d). Can I increase blade length to 460 mm and supposedly have steadier flying without interaction with tail blades? With having no DFC I would assume I wount struck tail boom either. Am I right or wrong?
I wouldn't. You are increasing unknowns & adding more stress, load, drag, and reactive torque to a system that was designed to spin 425mm blades. Increased risks for very little if any gains IMO. Just my 2-cents of course.
@@Rchelicopterfun John. This thought of increasing blade length came out of inspiration and curiosity). I think you are right. Trex 500 was supposed to be bilt like this.
I have bistex plus 5 and will order furmware upgrade for auto leveling and rescue. I would need it for fpv flying? but if you upgrade yourself to the point where heli flies for u, you dont have any more fun). I learnt hard way (crashes) that fun is when you really control it and have this adrenaline filling. That is what it is about, I think.
The reason I need it because I want to go fpv. To me its like next step. After reading all of your articles I thought I would go with turbine, but realized it is not practicle in urban area. Even If I build a scale 600 heli. luckyly I got a stadium football field to launch it.
I compose music for fun. It is just my hobby. And once my friend asked me if I want to exchange my old synth keybord for his trex 500, and I said why not and that is where heli virus started!)
John, the RQly & TQly is the packet quality, so as you say how many packets are lost, or retries had to be done, or retransmissions. Thanks again for a great video.!
John i also posted your video in the OMP facebook page, hope you don't mind?
Thanks for the confirmation information on RQ & TQ & thanks for posting the video. 👍
Grabbed one of the M1’s after your recent review. Love the videos and website!
Glad you like them 🙂
Thank you again John for sharing new info and video.
does adding verbal warning for low battery require a logical switch and a special function ?
Yes. You would setup up a low voltage alarm like you would any other alarm with LS & SF programming.
John , you have a nice collection of OMP birds ! Cheers from Waterloo, Ontario Canada 🇨🇦
I'm the Multi Dev and came across this video. The documentation for this protocol is located here: github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/Protocols_Details.md#omp---77 .
RSSI=TQLY is the % of received packets from the model by the Multi module (max=100%, min=0%=connection lost), it is NOT how well the model is receiving the module signal since this information is not shared by the receiver on telemetry. A1 and A2 are the battery voltage as you point out. A2 is showing only good telemetry packets voltage values, while A1 shows everything and therefore could contain some small errors. You MUST calibrate A1 and A2 based if you want something meaningfull, the how to is described in the documentation link above.
If you like what I'm doing don't forget to show your appreciation: github.com/pascallanger/DIY-Multiprotocol-TX-Module/blob/master/docs/Donations.md
Pascal
I came here to understand how to set up alarms when battery voltage is getting low.
You seem to know how to do it. May I suggest to publish a video about that soon?
Nice vid thx
I'll consider it. OpenTX university has a good tutorial on it.
You just create a logical switch with the a
@@Rchelicopterfun Nice one! thanks John
Hi John, Another great helpful video, would I be right in assuming If you copied one model setup from a radiomaster 16ts sd card to another radiomaster 16ts sd card it would clone the same setup
Basic foundation/layout would be the same, but because helicopters are so mechanical in nature, there is almost always fine tuning involved since servo centering & pushrod geometry will almost always be different.
nice video , I just got our video up . with a flight . nice flight!
Excellent, John.
Glad you enjoyed it
This does not seem to work with latest MULTI update. I followed directions exactly, all went successfully but no telemetry on my OMP-M1
Very good info John.
Thanks
Do you think the same is possible for the Goosky S1 with the TX16S?
No, Goo uses SFHSS protocol, not OMP protocol.
Great little tutorial.
dyuno for the micro 6ch helicopters that come with the rubbish chargers, could i just time how long it takes then take it off a couple minutes before and it will be charged perfectly
I can tell wait to get my TX16s and start learning more about open protocol .. thanks for all the great videos ! Question - will I need to add anything else to my TX16s other than some software updates and following your videos about how to add the OMP M2 config to the tX ?
Check the firmware versions first - the latest batches being shipped may already have the latest, but if not, then yes, you'll need to update the multi-module firmware.
The radio control XK X6 is compatible for this model micro heli ??🤩
John. While waiting for my 16ts to arrive. I know open tx is a minefield of learning curves and this radio has took the world by storm for quality and price. I now fly on jeti. Just love this radio. I was wondering if you can do the same with open tx as you can with jeti. Share files on open tx from one radio to the other. Ie. Can you share the model setup. With jeti if I copy the jsn file from the model folder on the sd card and share it to some who has a jeti tx it clones the full setup on their radio. Then they can adjust settings if they want to. Just thought it would help some out with models like OMP. I really enjoy watching all you videos. Always look forward to the next one. TH-cam has replaced my tv programs since this pandemic hope you are all safe the other side of the pond.
Hi John, I've got a question about a low voltage indication for a M1. Since the M1 is such a success, I can't get hold of a M1 with an OMP protocol anymore, especially in Europe. All they offer is a BNF version with S-FHSS. I learned from your books that you may not exhaust the LiPo battery too much. So here is the question: Is there a smart way of detecting the battery voltage during M1's flight when a S-FHSS protocol is being used?
Thanks for answering and the very well illustrated books!.
Wim.
Yep, the way we've been doing it for years - time your flights - still the best way IMO as I state on my LiPo battery page: www.rchelicopterfun.com/lipo-batteries.html
Telemetry is only a tool and honestly on little micros like this, a totally unnecessary one. It's a cool feature to access if you have it, but certainly not as convenient or hassle free as just timing your flights.
@@Rchelicopterfun Thanks for replying John!
I cant get this to work with my m1 4in1 futaba protocol. Im using a zoro with external 4in1 unit i cant get it to discover any sensors and i dont want to use the OMP protocol because of the locked curves and rates
As stated in the video and description; *only OMP protocol* supports their built in telemetry.
I found that a blade nano s2 has telemetry when I bind it to the tx16s but I would constantly hear "telemetry lost" and then "telemetry recovered" whenever I get like 10 meters away or more. I'm hopeful it works better on OMP helis
It's been my experience all micro's have pretty low telemetry signal strength transmission. Nothing like full range receivers do. You also lose out on antenna diversity with little single wire antenna micros so you'll find you might have a high RSSI signal in one orientation and then turn the heli 180 degrees and it drops in half and the alarm sounds. In short, you generally have to lower your RSSI signal strength alarm signal limits on micro setups. Default RSSI signal strength alarms in OpenTX is 45 (low) & 42 (critical). I will usually lower those to around 30/25 with micros otherwise as you said, the warnings are sounding all the time. On the M1 at the default 45/42 settings, I found the range is around 100 feet (average) before the warnings start in certain orientations. Lowering it to 30/25, I never get them. Of course still do your range checking to confirm you are not at the limit of RF control signal as well.
John can you post the diameter of the main shaft thanks
Diameter of what main shaft, M1, M2, Other???
Hey John! Just came across your TH-cam channel a few weeks ago loving the videos and information! I have a question for you I used to fly a trex 500 ( not very good) I wanna get back into it. I'm looking at getting the devil 420/ 505 or you recommend I go the omp route?
OMP make small helicopters (the m2 is swinging 180mm blades, the M1 125mm blades) so you can't compare them to a 400 or 500 size machine. If you want a smaller/micro size collective pitch RC helicopter, then OMP's are amazing. If you want a larger heli, then they are are not the right fit (literally). 🙂
@@Rchelicopterfun thanks for the reply! Are the smaller helis harder to fly? Or go stay the 500 route and keep practicing? I am also in northern bc, from your videos I take it Williams lake 100 mile area?? Once covid is over would love to get some flying lessons in!
@@anthonypsantos It depends on your definition of "harder to fly". The smaller the heli, the less mass, and thus less inertia it has. Smaller helis are therefor more reactive and "squirrely" as they respond much faster and to a larger amplitude to every control input or disturbance. Basically everything is sped up. This is why smaller helicopters don't have that wonderful fluid feeling or predictability of larger machines. OMP has managed to filter a good deal of that low inertia squirrellyness out with their stabilization algorithm, but it still isn't a large heli - physics will always overshadow human ambition.
The plus with micros that many consider "easier" is they are not nearly as intimidating. If you crash one, chances are it will survive and even if you do manage to bust it up in a high energy impact, the total repair costs will be less than a single set of 500 size blades.
Location: Near Valemount/Mt.Robson.
Can someone say if it is poossible to receive telemetry with DSMX.
Jon can you share the link to your book please
@Jake Winger, not sure which of my four eBooks you are asking about, so here's the link to my eBook sales page which lists them all and you can click on the specific eBook/s you are interested in to get more information about each: www.rchelicopterfun.com/rc-helicopter-e-books.html
Flexing 💪 the books 📚 lol jk didn’t know you had four! Thanks
Now I am really considering to buy one of those TX16s‘s. They seem pretty nice, but I‘m a bit scared of the unlimited functions 😂 My Futaba T6K V2 is way easier, but therefore there are no „complex“ settings. Can you recommend the radio?
As I always recommend to anyone who is pondering the "should I make the switch to OpenTX" question; spend some time on OpenTX University's website to get a basic idea of how it works along with the learning curve involved. I liken OpenTX vs. traditional computerized radio operating systems to that of Linux vs. Window's or Mac OS.
Both are powerful open source systems and like Linux, OpenTX is a "nerds" operating system; and I mean that as a complement. I know more people that have fallen in love with OpenTX and would never go back (again like Linux users), but I also know a few who absolutely hated it and could never figure it out.
As for the Radiomaster TX16S if that's the OpenTX radio you are considering along with it's latest variations such as the MAX; as I indicated in my review on it, and as so many others have also come to the same conclusion... It's superb! In my opinion, it's the best RC radio of 2020 and even the best over the past several years.
please more flying video of the m1, do you like it?
Yep. As I said in the review, it will be my Trex 150X replacement.
What's your RSSI min when flying in a room? I get low RSSI warnings a lot when about 2m away (min being as low as 27 sometimes). Yes, I did the frequency tuning.
Yes, the RSSI reading on these little guys is quite weak even though the range seems to be perfectly fine. You have to dial down the alarm threshold if you don't want it sounding all the time or just turn it off. With that said, the values I'm getter are not quite as low as yours. I can get about 20M or so away before it gets down into 20's. I've got my low alarm value set to 12 and critical set to 10 which seems to be working fine.
@@Rchelicopterfun thanks for confirmation, I'll have to go flying the M1 outside, yet. Good to know RSSI values down to 12 are still considered "ok"
Only OK on these things... I'd be in need of an underware change if I saw a reading that low with one of my bigger birds 😄
How can I add telemetry using the futuba protocol?
Can't.
Completely off topic, but noticed you use the the X12s I've updated mine to the latest opentx firmware, now I cant select the external antenna work fine but with limited range on the internal, do I need to backdated it, rather than the most modern
Sounds like a question for the OpenTX development team. I have no idea in other words, but certainly if it's not working correctly with the latest release, I would revert back to the previous version you were using.
@@Rchelicopterfun yup, the last up date was 2.3.8. Major update for horus radios. I'm running 2.3.10 it seems to more focused on the jumper series tx18 T16 ect. Will have a play with it this afternoon Gives me the hebbies everytime I plug it to the computer. Lol thanks for your work and great channel. From here in little New Zealand
I assume this only works if you are using the OMP protocol and not the futaba SFHSS? I tried the sensor discovery and nothing. :(
Yes... As per the title of the video "OMP Telemetry".
What type of receivers go into it.
This telemetry video is all about using the built in OMP protocol receiver. No external RX is used.
@@Rchelicopterfun O okay.Can you use any receiver on it instead of the telemetry.Like DSMX.
yes - a Spektrum satellite RX.
@@Rchelicopterfun What about Flysky versions.
Does telemetry work with spectrum as well
I'll presume you are asking if Spektrum (DSM protocol) can extract telemetry from OMP's control board when using a DSM receiver with any of OMP's helis. If so, the answer is no. Telemetry information is only transmitted through OMP's built in RX using their RF protocol.
Is there any telemetry available on the futaba version with tx16s?
Nope
@@Rchelicopterfun If I use an R-XSR FRSKY, will it give me the 2s battery voltage on telemtetry? Thinking of getting an M1 Orange Futaba version + T16s maxx + R-XSR for full telemetry.
Hi,
The SFHSS receiver can provide telemetry?
Nope.
Hi John is M1 a durable micro?
Did I not already indicate that in the M1 review.
John if i really wanted a OMP heli for my first heli what should i go with,the 1 or 2? would like you opinion please.
If you have no previous experience with any collective pitch RC helicopters, I would actually not recommend either (they are fairly advanced small collective pitch helicopters after all), but that is your call. If you are getting an instructors help, that is different of course but I suspect you are going the self-learning route. As for size, that is totally dependent on the size of the flying area you intend to fly it at the most. The M2 for example is too big for the average size yard (at least if you want to have any fun with it). The M1 on the other hand is a better size for yard practice.
If it is your first collective pitch helicopter, then I would recommend that you get the XK110 first.
Hey John! Try this for a „low battery alarm“:
LOGICAL SWITCHES
L0X a
John. I have a question. What difference did you notice flying 2 blade vs 3 or 4 blade setup, for example on a scale heli? And do you need to get 3-blade setup on a tail as well?
@Roman That's a big question and topic. The 100 foot view is there is a marginal increase in stability and "air grip" and there tends to be less blade lead/lag induced vibrations while spooling up or down when there are more than two blades in the head.
This comes at the cost of efficiency, increased drag, shorter flight times, increased weight, increased current draw which produces more heat in the power system, more reactive torque so the tail rotor is working harder and tail blow out is more common, higher servo loads, higher parts count, higher cost, more difficult to track the blades, and in some cases more difficult to transport unless you remove the blades
In short, practically no worthwhile benefits considering all the added issues & hassles. They do look cool statically of course.
@@Rchelicopterfun I think I will just stick with two blades two rotor blades setup, caz i dont see benefits rather then good look
@@Rchelicopterfun John. But after all those scale things you talked about. I will stick to my beautiful trex 500. This guy took me to the air and I love him so much that I dont need any other heli to keep my soul going!)
John. Got a question. I have trex 500 with 425 mm blades. I am a sport flyer (no 3d). Can I increase blade length to 460 mm and supposedly have steadier flying without interaction with tail blades? With having no DFC I would assume I wount struck tail boom either. Am I right or wrong?
I wouldn't. You are increasing unknowns & adding more stress, load, drag, and reactive torque to a system that was designed to spin 425mm blades. Increased risks for very little if any gains IMO. Just my 2-cents of course.
@@Rchelicopterfun John. This thought of increasing blade length came out of inspiration and curiosity). I think you are right. Trex 500 was supposed to be bilt like this.
I have bistex plus 5 and will order furmware upgrade for auto leveling and rescue. I would need it for fpv flying? but if you upgrade yourself to the point where heli flies for u, you dont have any more fun). I learnt hard way (crashes) that fun is when you really control it and have this adrenaline filling. That is what it is about, I think.
The reason I need it because I want to go fpv. To me its like next step. After reading all of your articles I thought I would go with turbine, but realized it is not practicle in urban area. Even If I build a scale 600 heli. luckyly I got a stadium football field to launch it.
I compose music for fun. It is just my hobby. And once my friend asked me if I want to exchange my old synth keybord for his trex 500, and I said why not and that is where heli virus started!)