My son and I started on this hobby just over a month ago. We fly our small beginner RTF planes each weekend at a local park. We've learned quite a bit from this channel and will be upgrading to BNF planes this month. Thanks for imparting wisdom to those just starting out. Greatly appreciated!
I watched this vid when it first came out now I just found my box of RC stuff and about to test fly my first build in years... You two were a good team.
Exultant episodes for beginners guy's. Its good to see you doing something for beginners. Without the new guys there would be no future. For me your FPV episodes have been really intuitive and have help me no end. This is a massive thumbsup from us in the UK. Keep up the good work lads. Looking forward to the next upp load. And its great to see you guys going from strength to strength.
Been doing model flying aircraft since before and way back prior to gas powered ... I'm even talking multi strand rubber band stuff power gliders etc ... Even so, got to say I love the way you explain the basics, bouncing 'stuff' off each other .. great stuff and very entertaining !
K in this case stands for a mathematical "constant" there are two constants that define an electrical machine ( I am not going to say either motor or generator because they are the same thing.) KV is is the voltage constant and is a measure of how many volts you get/need for a given rpm, not thousands of rpm, just rpm. KM is the motor constant and is a measure of the torque per square root (given power loss). See Wiki on "motor constants".
You guys make the best how to series. A heads up though if you want to know. kV=kilo-volts, the capital "V" makes the difference. and they can't use C for constant because in physics C=speed of light
This channel really inspired me to get in the racing drone hobby and the plane hobby but theres one thing that i would LOVE to see you guys do and that is to do some 3 day collab with uavfeatures and in one of his recent qna i think he said he might come to the us that would be a perfect opportunity for a collab with you guys so yeah i hope to see that from you as that would be great all wishes -TheRedGamer
I wish you guys mentioned the effects on motor power when comparing 3S or 4S batteries for example, not just ESC requirements. Overall, I am pretty new to electrics and there is still some very good pointers here.
I've never flown but in a month with taxes I'm gonna get back into RC hobby but this time gonna be planes, used to race rc cars 15 yrs ago but no planes I really want the EDF f16 Thunderbirds BNF and i was gonna get the spektrum dx8 transmitter cause from reviews of the f16 people say it's decent for beginners and I love fighter jets thanks for sharing all your knowledge if I decide not to get f16 edf I'll get the carbon cub S for sure
Look here "plane.ardupilot.com/wiki/ecalc-motor-and-prop-efficiency-guide/". It gives some good information to get started. The link is towards the top "PropCalc" to the actual calculator. It appears you have to pay $1 to gain full access. Good luck.
I don't think they've posted it yet, but I'm pretty sure they meant ecalc.ch ... another choice that's somewhat easier to use is webocalc (just google it).
Good info - but really - hat guy doesn't need to act dumb, he isn't. Act as a peer and add more to the discussion. Sorry - love your shows, just struck me as trying too hard and went the wrong way . Keep up the great work! :)
This annoys me too, when I first started watching flite test, I thought it was cool to have a newbie join in, hoping that he would learn and progress (along with any newbie watching the videos would) but acting dumb when we know he isn't is just odd. Josh Scott adds some good humour and he doesn't need to play dumb to get the laughs and be entertaining. I also say - let him fly more!
I actually see the logic in it. Josh is asking the questions that a newbie might ask and appears not to be learning anything because there are always new folks getting into the hobby. In this video he does push it a bit, but I find it amusing and simple answer that new folks might ask do get asked and therefore answered.
7:53 I'm probably not the first to say this, but: It is RPM per volt by the 1000s. Where does the K come from? It most likely comes from "Kilo". But unlike the usual "Kilo volts", this "Kilo" doesn't say anything about the volts. It says something about the RPM. A Kilo is 1000, and in this case 1000 RPM. A 1300 Kv motor spins at 1300 Kilo RPM per Volt. Aka, 1300000 RPM/V I didn't consult a source to fact-check this. I only used logic to figure this out myself ^^
how do you pick out the motor for the plane you want to fly? is it just a guessing game or what do you want to have in mind besides the weight of the aircraft. how do you yourself pick out the motor for your aircraft?
Check with others...two other thing appear to wrong.... I believe water is a recommended way to put out a LiPo fire. Also immersion in salt water was recommended years ago but my understanding is that it is no longer considered a good way to prepare a LiPo for disposal.
I think it is very difficult to do this (start from the front and make your way back) from a practical prospective. When I was designing my first scratch build hexa, first I estimated how much it was going to weigh, then I chose the motor (for example, tiger-motor shows how much thrust can be expected from a motor-prop combination), then the prop and finally the ESC based on the consumption ratings on the prop/motor combination. The batteries I already had (3S) so that constrained my options. I know for planes it is not exactly the same, but wouldn't the process be similar? Any thoughts?! Thanks for sharing your knowledge!
Will the position of the motor matter? For example a central motor on the front of the plane vs the back of the plane. Or as long as you have the plane parlance’s well the motor position doesn’t matter? Really want to make an F-22 with a pusher right on the back.
I love the way you make serious jokes letting us catch the joke and laugh :) Anyway it is funny, informative and very interesting. Thank you guys for your work.
So do u buy the motor first or the esc?? @FliteTest so if I have a motor that requires 35amp I need a esc that does 40 right?? Then how do u determine what size and kind of battery to use with esc and motor?? Thanks
What's up lads! I got a question for ya: What is an example of a combination (if there is one at all) of motors, esc's, props etc on a small 250mm quadcopter to achieve a flight time of 20+ minutes? I'm not interested in racing it, I just want a compact "flying camera" to capture outdoor events. That's why I need it to be small, yet still have a long runtime while carrying a camera (if possible, even a tiny gimbal). I'd use carbon components to save weight wherever possible, the variables I'm not too sure about is prop size, motor performance and battery size. Thoughts?
+Chretze Okay but i do not think there will be a combination to get 20 + minutes on a 250, you might need to get a bigger frame for a better and more efficient motor
ConorCon Man03 Hmm that's what I feared initially. I was thinking about building something similar to a parrot bebop 2 (pretty much a 250 frame size wise, triple blade props) which gets more than 20 minutes flight time. The thought of building something like it is intriguing so I was wondering if someone at flite test (or anyone else) knew how to achieve it.
Depends on what you build or buy. The FT Flyer scratch build for example flies slow, does not require much space, and is easily controllable, whereas the Bixler or Hawk Sky kits have good glide ratios and slow controls. Personally I recommend the Flyer or Nutball scratchbuilds with low control rates.
Hey hi I am a huge fan of your video I have some doubts Why does my lipo battery (lemon 2200mah,11.1volt,3s,30c) spark continuously while i try to connect to my esc (30a (deans connecter)) Maybe is it because of friction I am actually making a plane And I am using the battery mentioned above and the 30a esc and 2 servos and a 2200kv brushless motor And do u have any idea of the total flight time
but if the correct ESC is sold out or the one a few steps up is the same price or a few dollars more will it be ok to get say a 40amp for a 20amp motor incase you want to upgrade later?
Hey guys I'm getting into the hobby. I have an original super cub. I need to put a new motor and esc. The original one is trashed. What would be a good starting point. I have to buy new electronics even servos. The manule dose not say anything about upgrading to brushless?
Calculator's nice but it needs options for nitro as well. Wanted to see what it'd say about my Nitro Spear build but I can't tell it I'm using two 0.049s to fly it.
Im building a slow flying hercules style high-wing. Im targeting 1.5-1.8kg for total weight. Looking to get just under 1:1 thrust to weight ration maybe 0.9-0.8:1 Looking at two wing mounted motors rated at 900g thrust each and 9X5 propellers. Are the props and motors right? Im also not sure whether to use a 2200mAh battery or a 5000mAh battery
Hey, I am a hobbyist can you tell me how do you select the motor for rc aircraft? How much thrust to weight ratio do you choose ? I have built a heavy aircraft which weighs around 6kgs how much thrust do I need ?
Help me understand this Josh, I thought the k in 'kv' stands for thousands, as in 'kilo'...rpm per volt in thousands. There is a k referenced in science as the 'equilibrium constant k' there is also Coulomb's constant ke, having to do with electric potential energy in a vacuum..what am I missing?
Could you tell me about connecting the battery? I have decent experience with rc planes and I've seen that they are always powered/unpowered by connecting/disconnecting the battery. It bothers me that an external switch is never used. It's true that you'll eventually have to disconnect the battery to recharge it, but is there any other reason why noone places switches on their planes? I'd really like to do so, but it really bothers me that everyone else avoids it, like if it was something disasterous. Also, how about adding a fork to the battery's output, allowing you to plug in the charger externally, witouth having to access the battery? That's dangerous for sure, but is that all it?
My son and I started on this hobby just over a month ago. We fly our small beginner RTF planes each weekend at a local park. We've learned quite a bit from this channel and will be upgrading to BNF planes this month. Thanks for imparting wisdom to those just starting out. Greatly appreciated!
I had no idea props had different pitches. I learn something new every time I’m on this channel.
The mitochondria is the powerhouse of the cell.
Nishant Bhandari lol we just learned that
Yes.
that joke really has gotten around lately lol
I like hat guys' questions as reviews for us beginners.
Calculator is a great value for everything it provides for a newcomer like me. Great video.
I watched this vid when it first came out now I just found my box of RC stuff and about to test fly my first build in years...
You two were a good team.
Long time fuel flyer converting to electric. This was a VERY helpful episode. Thanks!!!
Exultant episodes for beginners guy's.
Its good to see you doing something for beginners.
Without the new guys there would be no future.
For me your FPV episodes have been really intuitive and have help me no end.
This is a massive thumbsup from us in the UK.
Keep up the good work lads.
Looking forward to the next upp load.
And its great to see you guys going from strength to strength.
Professional Work Guys .. Big thanks ..
and i think we should Send BIG THANKS for HORIZON hobby For this support
LOL I lost it at "And brushless uses magic?!". He's awesome! xD
[5:18]
Been doing model flying aircraft since before and way back prior to gas powered ... I'm even talking multi strand rubber band stuff power gliders etc ... Even so, got to say I love the way you explain the basics, bouncing 'stuff' off each other .. great stuff and very entertaining !
Josh & Josh; Great job explaining everything on Power systems ! Thanks for the Great Video !
Amazing series, this is where I learned everything rc
Highly informative, thanks again. I just went to the Hobby shop today and started looking qt a Radian glider
It sounds like it should be k/v. Thousand (k) rpms per volt.
Joshua Bardwell it is and ft got it wrong
come on how many joshes are out there ??
K in this case stands for a mathematical "constant" there are two constants that define an electrical machine ( I am not going to say either motor or generator because they are the same thing.) KV is is the voltage constant and is a measure of how many volts you get/need for a given rpm, not thousands of rpm, just rpm. KM is the motor constant and is a measure of the torque per square root (given power loss). See Wiki on "motor constants".
@@mathewthompson8022 No
Typically k denotes constant in scientific terminology, like rate constant for example. I think it’s a German word that it comes from.
I've always thought that rc planes looks so complicated to build, but after this series I want to build my own plane without help from RUclips!!!
You guys make the best how to series. A heads up though if you want to know. kV=kilo-volts, the capital "V" makes the difference. and they can't use C for constant because in physics C=speed of light
Josh and Josh rock. Thanks for the great intro to RC!
I love you guys! As a newbee, this is great info.
great job guys keep them coming
us old timers may pick up something also ;) and we just like to watch the videos
happy flying
thanks guys, this is so helpful. keep on with what you are doing.
Excellent instructional videos. Well thought out and executed. Congratulations and thank you so much.
Great series for the beginner. Nice work.
Great job guys!
This channel really inspired me to get in the racing drone hobby and the plane hobby but theres one thing that i would LOVE to see you guys do and that is to do some 3 day collab with uavfeatures and in one of his recent qna i think he said he might come to the us that would be a perfect opportunity for a collab with you guys so yeah i hope to see that from you as that would be great all wishes -TheRedGamer
Nice work guys, that was really well done.
"They dont put words on paper for no reason."
You havent seen many Chinese instruction manuals have you?
He is speaking the language of the rich
Allllll plastic
"Please do not the plane"
@@zachdurocher1166 I do the plane
@@zachdurocher1166 LMAO
Thanks soo much for making this video.
Thank you guys so much! Now I know what battery to get my super cub :)
Great info for a beginner! Thank you!
I wish you guys mentioned the effects on motor power when comparing 3S or 4S batteries for example, not just ESC requirements.
Overall, I am pretty new to electrics and there is still some very good pointers here.
Great information! You guys are Great.
Very good! You educated me so much. Thank you, guys!
Great info! Awesome video!
Hey I so your serie about ho to built your own airplane of foam I actually almost finished it but now I have problems with electronics
Rostislav Gavriliuk cool! research online you'll figure it out. :)
:)
Sorry guys I found the correct little black screws. My bad, keep the great content coming and stay safe.
I am begast fan sir for you.. In Pakistan..
i needed this
How to choose the right motor for a given Diameter & Pitch of a propeller? Thanks for the wonderful video.
Great Video..thanks
K also is a prefix for thousands..
FLITETEST WOOHOO!!
Thank you guys! But where is the link with the calculator?
I've never flown but in a month with taxes I'm gonna get back into RC hobby but this time gonna be planes, used to race rc cars 15 yrs ago but no planes I really want the EDF f16 Thunderbirds BNF and i was gonna get the spektrum dx8 transmitter cause from reviews of the f16 people say it's decent for beginners and I love fighter jets thanks for sharing all your knowledge if I decide not to get f16 edf I'll get the carbon cub S for sure
I don't see the link for the calculator mentioned in the video.
Look here "plane.ardupilot.com/wiki/ecalc-motor-and-prop-efficiency-guide/". It gives some good information to get started. The link is towards the top "PropCalc" to the actual calculator. It appears you have to pay $1 to gain full access. Good luck.
Hey guys, you linked episode 5. (Good job, btw.)
Did you post the link to the calculator mentioned?
I don't think they've posted it yet, but I'm pretty sure they meant ecalc.ch ... another choice that's somewhat easier to use is webocalc (just google it).
We always post additional reference info and valuable links in the article on our site. The link under the RUclips video will take you there.
Then why didn't Josh say to look there instead of saying "below".
hankus253 The primary outlet for the video is our website. We can't post additional photos and diagrams in the RUclips description.
+FliteTest It isnt free :(
Good basic Knowledge guys
I have a APC 10x7 prop on my gas tiger moth, been using it for 7 years with no problem. Thus, all my planes run APC props. :-)
Multi rotor beginner series please!
Good info - but really - hat guy doesn't need to act dumb, he isn't. Act as a peer and add more to the discussion. Sorry - love your shows, just struck me as trying too hard and went the wrong way . Keep up the great work! :)
This annoys me too, when I first started watching flite test, I thought it was cool to have a newbie join in, hoping that he would learn and progress (along with any newbie watching the videos would) but acting dumb when we know he isn't is just odd. Josh Scott adds some good humour and he doesn't need to play dumb to get the laughs and be entertaining. I also say - let him fly more!
I actually see the logic in it. Josh is asking the questions that a newbie might ask and appears not to be learning anything because there are always new folks getting into the hobby. In this video he does push it a bit, but I find it amusing and simple answer that new folks might ask do get asked and therefore answered.
Karl Borman yes
Good job Josh's
7:53 I'm probably not the first to say this, but:
It is RPM per volt by the 1000s. Where does the K come from? It most likely comes from "Kilo". But unlike the usual "Kilo volts", this "Kilo" doesn't say anything about the volts. It says something about the RPM. A Kilo is 1000, and in this case 1000 RPM. A 1300 Kv motor spins at 1300 Kilo RPM per Volt. Aka, 1300000 RPM/V
I didn't consult a source to fact-check this. I only used logic to figure this out myself ^^
how do you pick out the motor for the plane you want to fly? is it just a guessing game or what do you want to have in mind besides the weight of the aircraft. how do you yourself pick out the motor for your aircraft?
Check with others...two other thing appear to wrong....
I believe water is a recommended way to put out a LiPo fire.
Also immersion in salt water was recommended years ago but my understanding is that it is no longer considered a good way to prepare a LiPo for disposal.
I think it is very difficult to do this (start from the front and make your way back) from a practical prospective. When I was designing my first scratch build hexa, first I estimated how much it was going to weigh, then I chose the motor (for example, tiger-motor shows how much thrust can be expected from a motor-prop combination), then the prop and finally the ESC based on the consumption ratings on the prop/motor combination. The batteries I already had (3S) so that constrained my options. I know for planes it is not exactly the same, but wouldn't the process be similar? Any thoughts?! Thanks for sharing your knowledge!
hey brother, great video my friend
I'm buying a twin engine ARF Otter from VQ Warbirds/NEXA. Can you do a video on choosing electronics for twin engines?
Will the position of the motor matter? For example a central motor on the front of the plane vs the back of the plane. Or as long as you have the plane parlance’s well the motor position doesn’t matter? Really want to make an F-22 with a pusher right on the back.
I love the way you make serious jokes letting us catch the joke and laugh :) Anyway it is funny, informative and very interesting. Thank you guys for your work.
Is an ESC sort of like a power supplier for the motor?
13:36 i believe that should have said 'prop pitch' instead of 'prop diameter'
check CG after repairs, crash repairs in the tail will change your CG drastically...
So helpful
Have you considered to try out making an FT fpv drone swappable
Hey guys....nice channel, keep up the great work....Question for you are there any transmitters for rc planes that works more like a joystick?
Which foam do you recommend to use while building an plane ?
What you youse to make plane goes left and right? Rudder on the left or ailerouns on the right?
Ailerons
+Brian Haddad Thank you
+Andrej Walter i would assume co-ordinated control of both the rudder and ailerons. Not opposite however, this would cause you to side-slip.
+EpicGuyJC - TheAcePikachu Ok
Thank you.
So do u buy the motor first or the esc?? @FliteTest so if I have a motor that requires 35amp I need a esc that does 40 right?? Then how do u determine what size and kind of battery to use with esc and motor?? Thanks
Do you guys use radar or lidar for speed?
How am I supposed to know what propeller to use on my plane ? Because I want to build one...
Depending on what speed and conditions u wanna fly in also depending on size and weight of your plane as well
I think that at 13:35 there should be "prop pitch" instead "prop diameter".
I like the captions, their very funny ;)
Also, awesome videos guys. I am a huge Flite Test fan and learned so much from your videos. Keep up the great work!
What's up lads! I got a question for ya:
What is an example of a combination (if there is one at all) of motors, esc's, props etc on a small 250mm quadcopter to achieve a flight time of 20+ minutes?
I'm not interested in racing it, I just want a compact "flying camera" to capture outdoor events. That's why I need it to be small, yet still have a long runtime while carrying a camera (if possible, even a tiny gimbal).
I'd use carbon components to save weight wherever possible, the variables I'm not too sure about is prop size, motor performance and battery size.
Thoughts?
+Chretze look on hobby king and do your own research before asking other people to do it for you
+ConorCon Man03 I'm doing research right now. If you don't now anything, stay out of things that don't concern you.
+Chretze Okay but i do not think there will be a combination to get 20 + minutes on a 250, you might need to get a bigger frame for a better and more efficient motor
ConorCon Man03 Hmm that's what I feared initially. I was thinking about building something similar to a parrot bebop 2 (pretty much a 250 frame size wise, triple blade props) which gets more than 20 minutes flight time.
The thought of building something like it is intriguing so I was wondering if someone at flite test (or anyone else) knew how to achieve it.
What does the "class" of the motor mean? I've seen a lot of scratch builds that say the plane needs a 400 class motor, or maybe a 300 class.
Been waiting for this next episode :3
Would you recommend scratchuilding your first plane, or going and buying RTF?
Depends on what you build or buy. The FT Flyer scratch build for example flies slow, does not require much space, and is easily controllable, whereas the Bixler or Hawk Sky kits have good glide ratios and slow controls. Personally I recommend the Flyer or Nutball scratchbuilds with low control rates.
***** A couple of the FliteTest designs caught my eye, can't remember the names of them, though.
Rtf
I'm pretty sure I'm in love with Kate Upton.
Hey hi
I am a huge fan of your video
I have some doubts
Why does my lipo battery (lemon 2200mah,11.1volt,3s,30c) spark continuously while i try to connect to my esc (30a (deans connecter))
Maybe is it because of friction
I am actually making a plane
And I am using the battery mentioned above and the 30a esc and 2 servos and a 2200kv brushless motor
And do u have any idea of the total flight time
but if the correct ESC is sold out or the one a few steps up is the same price or a few dollars more will it be ok to get say a 40amp for a 20amp motor incase you want to upgrade later?
Hey guys I'm getting into the hobby. I have an original super cub. I need to put a new motor and esc. The original one is trashed. What would be a good starting point. I have to buy new electronics even servos. The manule dose not say anything about upgrading to brushless?
Hi are you going to be doing a beginners video for FPV
@FliteTest But what I want to a multi-engine plane? What factors change? Do I need to get a bigger battery to feed two motors instead of one?
Calculator's nice but it needs options for nitro as well. Wanted to see what it'd say about my Nitro Spear build but I can't tell it I'm using two 0.049s to fly it.
I was given a small 3 channel balsa model with a Flight Test Radial 2280kv motor. It did not include a battery with it. Can you recommend one?
Where can I get all these materials, but in smaller versions? Is there size differences?
Did you post the link to the calculator mentioned
Im building a slow flying hercules style high-wing. Im targeting 1.5-1.8kg for total weight. Looking to get just under 1:1 thrust to weight ration maybe 0.9-0.8:1
Looking at two wing mounted motors rated at 900g thrust each and 9X5 propellers.
Are the props and motors right? Im also not sure whether to use a 2200mAh battery or a 5000mAh battery
You can use 2BrotherHobby's RCFlightSource on your phone as a calculator
Hey, I am a hobbyist can you tell me how do you select the motor for rc aircraft? How much thrust to weight ratio do you choose ?
I have built a heavy aircraft which weighs around 6kgs how much thrust do I need ?
Can you use different props for different altitudes without having to change everything else? Because at higher altitudes the air is thinner.
Hey, what plane is that hanging in the top right? Is that an FT Slinger? Great video btw :-)
So when building your own planes how do we know what size of motor, prop, esc etc.....?? @FliteTest
Help me understand this Josh, I thought the k in 'kv' stands for thousands, as in 'kilo'...rpm per volt in thousands. There is a k referenced in science as the 'equilibrium constant k' there is also Coulomb's constant ke, having to do with electric potential energy in a vacuum..what am I missing?
I have a trainer-type plane that weighs about 170 grams. Would I need a high Kv motor or a low Kv motor
what motor to use for 50mm D fan for boeing 737-800 scaled 1:32?
I just connected the battery in my brand new Carbon Cub S+ and the motor started smoking. Now the motor is shot. Any idea why it happened ?
Whats the difference between a high frequency PWM and a low frequency PWM on the rc brushless motor ? What does it change in flight ?
Could you tell me about connecting the battery? I have decent experience with rc planes and I've seen that they are always powered/unpowered by connecting/disconnecting the battery. It bothers me that an external switch is never used. It's true that you'll eventually have to disconnect the battery to recharge it, but is there any other reason why noone places switches on their planes? I'd really like to do so, but it really bothers me that everyone else avoids it, like if it was something disasterous.
Also, how about adding a fork to the battery's output, allowing you to plug in the charger externally, witouth having to access the battery? That's dangerous for sure, but is that all it?
Quick question how do you see what amperage esc your motor needs
what motor do you use on the ft flyer "im a noob so if you could dumb it down as much as possible if you could.
What about 3 or 4 blade props? Im thinking about building a p51 mustang and offcourse i want a 4 blade prop on it for the right look.