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Title: My first RC Plane Post by: Cpt_Rajesh on December 19, 2016, 02:24:30 PM First Trainer Plane
Hello guys, I have made one RC plane Electronics need to be order. But at first, I was wanted to share whatever I have made and need suggestions. As I was calculating the plane AUW is going upto 480g. I think its heavy. Total weight is around 210g (without electronics) Wing loading I have calculated. Wing Area= 201 in2 Weight= 17oz (with electronics) Wing loading=12.18 oz/ft2 Wing Area= 1296 cm2 Weight= 480g (with electronics) Wing loading= .37 g/cm2 Specifications: Wing area= 96x13.5 cm^2=1296cm^2 Wing Weight=110g Fuselage length X width X height=59x4.5x7 Cm Fuselage weight=100g Airplane weight with control wires=210g 4 servos= 40g (https://hobbyking.com/en_us/turnigytm-tg9e-eco-micro-servo-1-5kg-0-10sec-9g.html) Motor (Suggest) around 2200kv which one to choose out runner/inrunner I have considered it as max to max 50g(For future purpose also) Battery=180g (https://hobbyking.com/en_us/turnigy-1300mah-3s-30c-lipo-pack.html)(suggest better option) Title: Re: My first RC Plane Post by: tiluji on December 19, 2016, 09:20:26 PM Have you bought the electronics? Cuz the Avionic 1350KV and 1900KV motors are a beast providing more than enough thrust. Checkout RC bazaar
http://www.rcbazaar.com/product.aspx?productid=4100 http://www.rcbazaar.com/product.aspx?productid=4104 http://www.rcbazaar.com/product.aspx?productid=4105 Title: Re: Post by: Cpt_Rajesh on December 19, 2016, 09:59:21 PM Ohhhh yes
I saw that Nice suggestion buddy. Will check with that. Any suggestion about plane. Should I continue with the same? Sent from my Redmi Note 3 using Tapatalk Title: Re: My first RC Plane Post by: PRANAVK09 on December 19, 2016, 10:32:31 PM hello ,that is good plane and don't worry that it is too heavy.
it should be stable to learn (if you made it to learn flying) and do take a glide test . Title: Re: My first RC Plane Post by: swapnilnimbalkar on December 20, 2016, 12:08:45 AM Hey Hi. It seems that the airfoil shape is not the way it should be.
Try to upload some more pics from side view and let experienced builders check whether you have got correct airfoil shape or not. Dont be in a hurry to fly go slowly, take suggestions from experts. Title: Re: Re: My first RC Plane Post by: Cpt_Rajesh on December 20, 2016, 08:52:12 AM hello ,that is good plane and don't worry that it is too heavy. Hey pranav,it should be stable to learn (if you made it to learn flying) and do take a glide test . Thanks buddy for replying.Will go with this only But I have polyhedral wing also with 3channel airplane similar to this will practice on that first and then go with this. ;) Sent from my Redmi Note 3 using Tapatalk Title: Re: Re: My first RC Plane Post by: Cpt_Rajesh on December 20, 2016, 08:58:26 AM Hey Hi. It seems that the airfoil shape is not the way it should be. Hey hi Swapnil,Try to upload some more pics from side view and let experienced builders check whether you have got correct airfoil shape or not. Dont be in a hurry to fly go slowly, take suggestions from experts. Please check the following images. And also video my plane construction is almost similar to this. https://youtu.be/KJWg5HJBGGc (http://uploads.tapatalk-cdn.com/20161220/18cb0db127a8e60dd93de5d66fcf4581.jpg) http://cloud.tapatalk.com/s/5858a53bd360c/IMG_20161220_073959.jpg? (http://cloud.tapatalk.com/s/5858a53bd360c/IMG_20161220_073959.jpg?) Sent from my Redmi Note 3 using Tapatalk Title: Re: My first RC Plane Post by: tiluji on December 20, 2016, 03:30:41 PM Tiny Trainer of FT is a great plane, I dont know what swapnil finds wrong, The air foil looks similar to the tiny trainer so I think it should fly pretty stable, unless i am missing something :thinking:
Title: Re: My first RC Plane Post by: harshit batra on December 21, 2016, 12:11:38 AM Hy rajesh,
Good choice for ft tiny trainer as first plane,aerofoil seems ok to me.building with corro will make this even better. Regarding power setup i would suggest you to go with a lower kv motor and a sf prop ,as it is your first plane you need the plane to fly slow.the higher kv motor would need a short dia and high pitch prop which makes the plane go faster . I built my tiny trainer(in corro)with a 24 gram hextronic 1300kv and a 8×4sf prop with a 800 mah 3s. Auw of my plane was 480 grams(including lg too). Title: Re: My first RC Plane Post by: Cpt_Rajesh on December 21, 2016, 01:52:13 PM Ohhhkay,
Thanks buddy it boosted my moral for flying. :salute: Title: Re: My first RC Plane Post by: Cpt_Rajesh on December 21, 2016, 01:53:34 PM Tiny Trainer of FT is a great plane, I dont know what swapnil finds wrong, The air foil looks similar to the tiny trainer so I think it should fly pretty stable, unless i am missing something :thinking: Ohhhkay, Thanks buddy it boosted my moral for flying. Salute Title: Re: My first RC Plane Post by: Cpt_Rajesh on December 21, 2016, 02:02:25 PM Hy rajesh, Good choice for ft tiny trainer as first plane,aerofoil seems ok to me.building with corro will make this even better. Regarding power setup i would suggest you to go with a lower kv motor and a sf prop ,as it is your first plane you need the plane to fly slow.the higher kv motor would need a short dia and high pitch prop which makes the plane go faster . I built my tiny trainer(in corro)with a 24 gram hextronic 1300kv and a 8×4sf prop with a 800 mah 3s. Auw of my plane was 480 grams(including lg too). Yes, definitely appreciate your input and thanks for replying. Soon I will order electronics and post videos, Pics. Hope will disturb you guys again for the help ;););) Title: Re: My first RC Plane Post by: Cpt_Rajesh on December 22, 2016, 06:15:23 PM Hello guys I have decided to reduce weight upto 400gms and Might be changing wing with Greater aspect Ratio.
1) Can I use Following motors? https://hobbyking.com/en_us/brushless-motor-d2205-2600kv-ccw.html https://hobbyking.com/en_us/c20-brushless-outrunner-2050kv.html https://hobbyking.com/en_us/d2822-14-brushless-outrunner-1450kv.html https://hobbyking.com/en_us/hextronik-24gram-brushless-outrunner-1300kv.html https://hobbyking.com/en_us/hobbyking-donkey-st2004-1550kv-brushless-motor.html https://hobbyking.com/en_us/c20-brushless-outrunner-2050kv.html Once the motor decided, Other thing i can figure out. Please see below I will increase cord length By 3Cms to increase aspect ratio. Need your expertise. Title: Re: My first RC Plane Post by: tiluji on December 23, 2016, 08:45:09 PM Have you placed orders from hobbyking before? Then you must know one thing that it takes almost a 3 weeks to a whole MONTH to receive the parts, along with the fact that things can get lost in transit. They may send you another but that will waste a lot of time. Rcbazaar, RcMumbai, Ebay and even amazon are have good range of motors. Speaking personally, ive made 5+ Ft models with a 1300kv 8 and 9 inch prop and they flew beautifully. We wanna fly more dont we ;)
Title: Re: My first RC Plane Post by: K K Iyer on December 23, 2016, 09:35:10 PM I will increase cord length By 3Cms to increase aspect ratio. Increasing the chord will DECREASE the aspect ratio... (Aspect ratio is span/chord) Title: Re: Re: My first RC Plane Post by: Cpt_Rajesh on December 26, 2016, 09:38:49 PM I will increase cord length By 3Cms to increase aspect ratio. Increasing the chord will DECREASE the aspect ratio... (Aspect ratio is span/chord) Thanks for the info. How does aspect ratio affects the coefficient of lift and drag? And How does wing span and cord respectively affects coefficient of lift? Sent from my Redmi Note 3 using Tapatalk Title: Re: Re: My first RC Plane Post by: Cpt_Rajesh on December 26, 2016, 09:41:23 PM Have you placed orders from hobbyking before? Then you must know one thing that it takes almost a 3 weeks to a whole MONTH to receive the parts, along with the fact that things can get lost in transit. They may send you another but that will waste a lot of time. Rcbazaar, RcMumbai, Ebay and even amazon are have good range of motors. Speaking personally, ive made 5+ Ft models with a 1300kv 8 and 9 inch prop and they flew beautifully. We wanna fly more dont we ;) Hey buddy,Thanks. :) ;) Will definitely buying from RC bazzar. Just figuring out to get into budget. Sent from my Redmi Note 3 using Tapatalk Title: Re: My first RC Plane Post by: K K Iyer on December 27, 2016, 12:11:01 AM How does aspect ratio affects the coefficient of lift and drag? And How does wing span and cord respectively affects coefficient of lift? Short answer: 1. Induced drag, (ie, as a consequence of lift) is inversely proportional to aspect ratio 2. If I remember right, a quick estimate of Re is chord in inches times speed in mph times 780 A model with a 6" chord, flying at around 6m/s, would have a Reynolds number Re below 100k. BUT, To fly a (first) model airplane successfully, stuff like CL, Re etc, not reqd. Leave it for later. PM me for more theory if reqd ;D Regards. Title: Re: My first RC Plane Post by: Cpt_Rajesh on December 27, 2016, 02:21:52 PM :o ??? :headscratch:
:salute: :salute: :salute: Definitely, sir will bother you for more information ;), but currently doing calculation to get appropriate motor and proper. I have changed the wing now its having 180mm AUW(410gms max considered) * 0.11= 45watts Considering motor efficiency 75% Theoretical power(45)/0.75 = 60watts motor will be required. Calculations courtesy http://www.rcindia.org/electric-power/amp-rating-and-motor-size/ The great, Sir saju. Motors http://www.rcbazaar.com/product.aspx?productid=1913 http://www.rcbazaar.com/product.aspx?productid=2397 http://www.rcbazaar.com/product.aspx?productid=2398 Please find the attached image RC plane Calculations is with previous wing RC plane Calculations2 with current wing. Title: Re: My first RC Plane Post by: Cpt_Rajesh on January 31, 2017, 01:08:26 PM Got all electronics.
Only Battery and charger is remaining. As soon as it arrives, will assemble them and post flight video. Thanks you guys for all your support and suggestions. https://drive.google.com/open?id=0B1cLhbNdqYoBdG9mR1V2MDJyQ28 https://drive.google.com/open?id=0B1cLhbNdqYoBOURkRWR2TVhFR2s https://drive.google.com/open?id=0B1cLhbNdqYoBOW8yMkR4RHZZQU0 https://drive.google.com/open?id=0B1cLhbNdqYoBVXZja3ZzNGRGalE Title: Re: My first RC Plane Post by: swapnilnimbalkar on January 31, 2017, 02:32:01 PM Complete it as soon as possible. We are eager to see the flight video.
Good Luck. Title: Re: My first RC Plane Post by: Cpt_Rajesh on January 31, 2017, 04:15:28 PM Thank you very much Swapnil :salute:
Will update ASAP. Title: Re: My first RC Plane Post by: tiluji on January 31, 2017, 04:17:42 PM Cant see those pics you have attached in your post regarding you getting all the eletronics. I had a doubt, Which motor did you actually get? Since none of them are listed to be giving above 600gms of thrust considering we prefer double the thrust with respect to AUW?
Title: Re: My first RC Plane Post by: Cpt_Rajesh on January 31, 2017, 04:29:19 PM I have ordered from Aliexpress and received the items within the 20days.
The motor I ordered is not listed in the above description. Here are the link to the electronics:- Servo https://www.aliexpress.com/item/Tower-Pro-9g-micro-servo-for-airplane-aeroplane-6CH-rc-helcopter-kds-esky-align-helicopter-sg90/1579234971.html?spm=2114.13010608.0.0.U4UYel ESC https://www.aliexpress.com/item/Hot-Selling-1pcs-RC-BEC-30A-ESC-Brushless-Motor-Speed-Controller-free-shipping-I403/32476456664.html?spm=2114.13010608.0.0.U4UYel Voltage Tester https://www.aliexpress.com/item/for-1-8S-Lipo-Li-ion-Fe-Battery-Voltage-2IN1-Tester-Low-Voltage-Buzzer-Alarm-Hot/32577974285.html?spm=2114.13010608.0.0.U4UYel Motor https://www.aliexpress.com/item/1pcs-A2212-Brushless-Motor-930KV-1000KV-1400KV-2200KV-2700KV-For-RC-Aircraft-Plane-Multi-copter-Brushless/32672300112.html?spm=2114.13010608.0.0.U4UYel Charger https://www.aliexpress.com/item/Battery-Balance-Charger-For-iMax-RC-iMax-B3-Compact-Charger-LiPo-Akku-Battery-Balance-Power-for/32710725983.html?spm=2114.13010608.0.0.U4UYel Battery https://www.aliexpress.com/item/Wholesale-ZOP-Power-11-1V-1300MAH-20C-Lipo-Battery-T-Plug/32611019566.html?spm=2114.13010608.0.0.U4UYel Prop https://www.aliexpress.com/item/Gemfan-8045-Carbon-Nylon-Propeller-EPP-For-RC-Quadcopter-Multirotor/32372722771.html?spm=2114.13010608.0.0.U4UYel Title: Re: My first RC Plane Post by: swapnilnimbalkar on January 31, 2017, 04:59:31 PM have you received the battery?
Title: Re: My first RC Plane Post by: Cpt_Rajesh on January 31, 2017, 05:40:37 PM Cant see those pics you have attached in your post regarding you getting all the eletronics. I had a doubt, Which motor did you actually get? Since none of them are listed to be giving above 600gms of thrust considering we prefer double the thrust with respect to AUW? Thanks for pointing it out Not able to embed image, that's why posting links. Title: Re: My first RC Plane Post by: Cpt_Rajesh on January 31, 2017, 05:41:45 PM have you received the battery? No, Not yet.But I think will get it within this week. Title: Re: Post by: Cpt_Rajesh on February 13, 2017, 10:41:38 PM Hello guys
Please Review my planes flight🙏🙏🙏🙏🙏🙏 Sent from my Redmi Note 3 using Tapatalk Title: Re: Post by: Cpt_Rajesh on February 13, 2017, 10:43:40 PM Hello guys we had flight this weekend.
Please watch and review it Recommendation needed 🙏🙏🙏🙏🙏🙏 Sent from my Redmi Note 3 using Tapatalk Title: Re: Post by: Cpt_Rajesh on February 13, 2017, 10:43:55 PM https://youtu.be/10lYl8Mnbtw
Sent from my Redmi Note 3 using Tapatalk Title: Re: My first RC Plane Post by: swapnilnimbalkar on February 13, 2017, 11:08:43 PM That is awesome. Very stable flight. If it was your first build and flight then :hatsoff: to you.
Title: Re: Post by: Cpt_Rajesh on February 15, 2017, 07:16:30 PM 😆😆😆😆😆😆 thanks swapnil.🙏🙏🙏🙏🙏
It was little tail heavy by @prashant sir trimmed it well. I am making changes to nose and will post more soon. Thanks for replying. Sent from my Redmi Note 3 using Tapatalk Title: Re: My first RC Plane Post by: kamalsahai on February 16, 2017, 04:21:17 PM is this ur maiden /first flight or first flight with home build plane
what is ur flying experience kp Title: Re: My first RC Plane Post by: Cpt_Rajesh on February 16, 2017, 09:30:57 PM Yes it's my first flight with my build.
Title: Re: My first RC Plane Post by: K K Iyer on February 16, 2017, 09:47:36 PM @Cpt_rajesh,
Nice maiden. The landing part of your video tells me that you have prior flying experience. Probably full size. Right? Regards. Title: Re: My first RC Plane Post by: Cpt_Rajesh on February 19, 2017, 04:55:33 PM There is some trick ;D >:D
The landing is done by our great @prashant sir. ;) Title: Re: Post by: merin_83 on February 28, 2017, 12:49:26 PM did u get the lipo yet?
Sent from my Redmi Note 3 using Tapatalk Title: Re: My first RC Plane Post by: Cpt_Rajesh on February 28, 2017, 06:01:08 PM No >:( :(
I am working with li-ion 3s cell. I have made pack of it. For flight i have not used it yet, but soon going to use. |