FPV49 v3 Plans & Some Build Tips

[@syphearNZ]

I took my FPV49 out for its maiden this morning. First launch with not enough throttle resulted in a tip-stall and noseplant. Second go was much better and it flew really well just have to add some up elevator to trim it for level flight. Thanks for the plans, I pretty much built to your spec but have used 2.5mm plywood to sandwich and reinforce the motor mount/main body location and also on the elevon horns base. 60A plush speed control 35-30kv 1400KV prop drive motor 9" prop. KK2 & OpenAero2

[@funnyworldchannelfromk3421]

hey i am from india

[@28th_St_Air]

You Rock!!! I've been searching the net for quite some time for plans and a decent set of instructions for a foam board wing and your video blows everything else away by far. Instant subscriber. Thanks.

[@rodher12]

thank you both for the time each other spent doing your tutos... really appreciate...

[@usarmyfl1]

You were not kidding.. This guy's music is amazing...

[@syphearNZ]

I im from NZ but moved to Perth. I used genuine 6mm thick depron and it wasn't very cheap. The 5 sheets plus 2 tubes of uhu por were just under $100AU

[@wargasm180]

wow i just maidened my fpv49 and it flew amazing!! so floaty and i get 17 min flight times since i can just cruze around below half throttle!

[@FPVTrond]

It is my (limited) understanding that the KFm-4 will fly faster and track better. I'm currently working on building this plane and looking forward to test it! My other wing FPV49 v2 uses the KFm-2 airfoil and is pretty good for FPV, but you have to adjust trim for different speeds. The goal with FPV49 v2 and v3 is to carry a GoPro and not have the micro vibrations/wobble you can see on some of my FPV49 v1 videos. FPV49 v1 is KFM-2 but has one 6mm bottom sheet and 2x6mm KFm-step (more flex).

[@FPVTrond]

Hi, if you build what i call the FPV49v1 or FPV49v2 variant, they can fly real slow, easy to launch and take a lot of punishment. (Only add steps on top of the plane to make a KFm-2 airfoil). To make the v1 you only use one of the big sheet on the bottom and two of the medium sheets on top of that. To make the v2 you use two big sheets and two medium sheets. When I first started I was surprised how easy it was to fly wings so don't be afraid of them :)

[@YooToobR34]

Very nice 3D CAD work here - well worth the effort. Nice over-all. Considering hot-wire foam approach w/carbon reinforcing. Love the way this "floats"! Again.. GREAT JOB!

[@usarmyfl1]

The song is called "Little Whisper"

[@Fallingz]

Finally finished mine but i need like 200gr in the nose to get the cg correct (not using a gopro) I had to make my motor mount extend 15mm from the back (for the motor to not rub against the cf). What is the max weight that you have flown with? I am using one 5000mah battery as close to the nose as I can but as the vtx and receiver are in the wingtips I need more weight in the front. I hope it will fly as I have probably spent 30hrs on the build if not more and 5tubes of UHU poor :P.

[@FPVTrond]

I feel that the KFm-2 will give you a little more "bumpy" ride, but its still quite nice since it can be made so light. The KFm-4 however feels like its more on rails and just want to go forward. I would recommend KFm-2 for casual flying and KFm-4 if you want to make stable video, fly fast or if you want to fly acrobatics. RCSuperpowers made a great video comparing the various KFm wings and I definitely agree with their conclusion. The best wing imo would be a light KFm-4 :)

[@eduardosflights]

I just finished my wing following your video it flight like a dram now I need to put the fpv gear on it tanks !

[@ynical]

Im making your v3 but with a 30" wing. The double stack with the carbon rods work good thanks for the vid

[@FPVTrond]

Thanks for the nice feedback :)

[@BillsonTheRoad]

Hot glue is much much cheaper and works well enough for many scratch builds!

[@Homeengineering]

Thank you for the reply, Why would'nt the FPV49V3 be suitable? I thought the V3 was more stable. Or does it have to be flown faster so less suitable for a beginner?.

[@FPVTrond]

Hi, I'm no expert in CG and flight characteristics, but so far I have used a CG of around 25 to 25.5cm from the nose. (9.84252 to 10.0394 inches). This may be way off so if you find a more correct CG please let me know :)

[@Fallingz]

hehe ye will be a pain to launch. I used most of the glue in the start but I realized that I used way to much so i started to use less after I had glued half the plane. I also took a bit of UHU on my finger and put a thin layer on the front of the plane before i but the tape on will hopefully hold down the tape really good. But I was very unlucky as the esc got burnt when I was playing around with failsafe and other settings, now I have to wait 4weeks to get a new from hk >.< I WANT TO FLY! :(

[@ynical]

I bulit a fpv40 xl with a kfm2 does the kfm4 track better. Your plane is better for fpv from what i can tell from your vids. Great job!

[@TimJungbluth]

Nice! Going to try this one as well. Which servo's (specs?) did you use? micro's? Well done!

[@FPVTrond]

It's because of the speed yes :). A lighter plane can fly much much slower than a heavier one.

[@ypsonar]

Sir can you please suggest me some good article or web so I can understand more some about comparative ratios of angles and tip cord, wingspan, size of rudder etc. So i can choose proper ratios with weight of plane and speed requirement of plane etc. Please . . . !

[@Constancegrace001]

Yes, pdf files or google sketch up plans please! I would like to give my hand a try at this, although I may opt to use EPP as i got a bunch of it lying around.

[@Homeengineering]

Do you think this plane is suitable for someone just starting to fly? It looks like it can fly slow as well as fast. I've followed your channel for some time now and always look forward to the great aerial fpv films.

[@TomFlite]

What did you use for the foam? I guess you're in NZ and I can't find cheap foam anywhere - except foamboard.

[@aaveliky69]

Good plane!!!Where is CG?

[@ollanderparker]

Looking forward to seeing the finished product and how it flys. Be sure to give us some close ups of the real thing. Thanks.

[@Just_Jeff_Tunes]

Can you post the google sketch up plans? Or even the PDFs for print out? I would love to try to build this plane.

[@Fallingz]

This looks awesome for a zephyr style wing that I can fly with until I can get a real zephyr. Have have you tried to make one out of epp? I feel like it will be way more durable if it was made out of that.

[@geodezix]

Which do you prefer, FPVTrond, KFm's or wire cut foam you cut from a template?

[@usarmyfl1]

Hey thanks a lot! Will definitely check it out. :)

[@FPVTrond]

I laminate the entire plane with packing tape including the "socket" where the GoPro is mounted. The GoPro in its housing just stands on top of the taped foamboard with a bead of hotglue arround the foot just to be sure.

[@BlediARDRONE]

Hi, FPVTrond. Your concept is so cool. I just finish to develop my own flying wing it's looks like your FPV49 V3 but it's smaller (100cm). The today maiden flight is on my channel

[@Lightleakz]

hi trond i've started to build oneof your v3 wings. but my original depron sheets are only 1230mm long... can you tell me where the CG is going to???

[@Brucelectricmoose]

Hello, Great Videos. thanks for sharing the plans. I have a X 2216-8 1250 K V Sunny sky Motor and x 2 2.2 3s Batteries I would like to adapt to a smaller version of the FPV 49. Could I scale this Wing down to say 40 inches to accommodate the smaller motor and prop (9.4) I'm worried about the thickness As i have the same as you 6 mm sheets. I cant scale the thickness down unless I use less layers...

[@Brucelectricmoose]

I'm making a 1000mm at the moment. Whether it will fly is a different matter but have a new motor on order' lower kV for weight to prop ratio and size of wing 1000mm being under 39 inches. The first problem is reducing the size when you work in mm from inches. Also the thickness. A 49 is 6 layers thick in total mine is 4. Look up projectflightdesign he makes an fpv 40

[@FPVTrond]

Bruce Moose Scale down is no problem :)

[@schraut5]

This really is a sweet build! I may have to try a FPV49. In the end, what are your thoughts KFM2 vs KFM4, I do know that the KFM4 is recommended for wings (from Dick Kline)

[@7grounds]

what software is this, nice job, thanks

[@joeschmo1332]

What weight is this plane will all electronics?

[@FPVTrond]

I will be sure to check it out :)

[@sandeepkumarsinghrajpoot4974]

Sir dalta wing plans mini motor se kase bnaya

[@FPVTrond]

Tanks man! Good luck :) I'm planning to start my next one within a few days also.

[@FPVTrond]

Music by CMA. Check out his youtube channel. Search for: "CMA music Epzonix" :) The guy is only 17 years and already make brilliant music like this.

[@ThePhotonHD]

very nie . I want to see it flying! How could you attch the gopro on foam? bye

[@beberdbs6839]

Hi ! My project is a mini FPV49v3 (wingspan 500mm) I'll show you when it's ready !

[@nabbsone]

lies .. its been 2 months!

[@beberdbs6839]

Nabbs1 ?? :o ??

[@FPVTrond]

yes

[@JulioCoutoImagens]

Very nice!! Thank you for sharing!

[@MCsCreations]

Dude, the link for the motor is broken. 😕 Could you tell me what motor size did you use in this wing? Thanks! 😊

[@wattwaster5936]

I like and interesting build demo.

[@elmattbo2540]

Having an issue with my fpv49 waggling in yaw. I know it's an issue with all wings, but it will do it in straight and level flight. Any tips on how to get rid of this? I was thinking of making the fins asymmetric with more area above the wing as I've heard this helps. Have you experienced this?

[@FPVTrond]

+iFli Yes everytime I test a new built wing and it proves to be a little tail havy i will have this issue :) Try adding a lot of weight in the nose or throw in bigger batteries etc. :=)

[@elmattbo2540]

+FPVTrond Thanks for the tip, I'll check it again for CG. Nice design by the way. I snapped mine in half after pulling too tight a turn at full throttle on 4s (ground speed was almost 150kph!) and have now built it with an extra step in the centre section. So it's a kfm4 with a kfm7 in the middle.

[@FPVTrond]

+iFli Nice, I don't think i have heard about anyone reaching that high speeds with FPV49 before :)

[@kevinsraydatme]

wow.. these wings are amazing. curious though as to what software you are using in this video.. used to design the wing?

[@DarkMatterLP1]

Kevin Ray i think its google SketchUp but im not sure

[@jaedonglee9552]

what program did you use??? i want to make and design flying wing

[@powermickel]

25-26cm measured from the nose?

[@TimJungbluth]

thank you! ;)

[@DROY2004]

Good Vid! Great Graphics!.....Thnx!

[@kimosabi860]

How can I get the png spec files as a pdf?

[@powermickel]

Hi, where is the CG of the wing..?

[@annaivealakanni3440]

Please give the application or app name 5o dision aircraft

[@HaukLanglo]

Alright.... Stupid question.... What's this nice music?

[@jorgenelsonfelix52]

Muy bueno . Te mando un gran saludo .

[@krissfly]

hi. is the motor mount set flat? up or down right or left? thanks

[@FPVTrond]

Flat

[@BizumED]

Could you check the plans link please?

[@jorgenelsonfelix52]

😃 Excelente muy bien 😃👍👍👍👍👍

[@raginimishra7803]

Hey tell what software are u using

[@jazzy39217]

what is your max flight time?

[@FPVTrond]

hehe wow, you don't need that much UHU poor between the layers :P. Then again your plane should be pretty strong when all that UHU poor dries :D Think max weight I have tested is arround 1.8Kg, but I'm sure the plane can handle way more than that. Make sure you launch it properly if its heavy! XD

[@FPVTrond]

I'm happy it turned out well :) I always use full throttle when launching the plane just to be sure :D If you got some footage or images from it please post, I would be very interested to see how it flies :)

[@schraut5]

Nice! What program is this?

[@powermickel]

Takk! :-)

[@usarmyfl1]

What's the music lol

[@Al2RC]

good plane =)

[@FPVTrond]

over 30 min if all you do is to keep it in the air on low throttle.

[@leotl3368]

Can you make this with EPP?

[@FPVTrond]

see 5:59 for plans or bottom of description.

[@FPVTrond]

Metal gear type: 32grams or heavier should do nicely :)

[@jawapura]

what software that you used to create the design?

[@FPVTrond]

Nice, please post video of it the air, I would love to see how it flies :)

[@FPVTrond]

Sweet :)

[@usarmyfl1]

I think..

[@ritubhasin8581]

what is the thickness of the dperon

[@leotl3368]

6mm

[@markturner7021]

Nice job...;-)

[@FPVTrond]

about the same :)

[@jazzy39217]

Which Tx and Rx do you use?

[@FPVTrond]

now im mostly using 9xr with frsky module 2.4ghz

[@Ghettogamer666]

Plans PDF ... please

[@AlfredoDaniel14139]

Please, where is the CG ???

[@Ghettogamer666]

Plans?

[@nestorguillermodelcastillo8766]

como calculas el cg?

[@adamone4890]

Try these online calculators: rcplanes.online/cg_wing.htm rcplanes.online/cg2_wing.htm

[@FPVTrond]

Cool, I would be very interested in how it flies :)

[@breitlingl3990]

Hi, can we try building the same with Balsa wood? Kindly advise. Warm Regards

[@FPVTrond]

@@breitlingl3990 the wing shape is fairly simple and straight forward so i don't think you will have any trouble making it in balsa or 3d printed. However, it's much easier to just slap some depron or dollartree foamsheets together :D. In general i recommend to build the smaller version nowdays: kzbin.info/www/bejne/q3rYpKiBbZh0eLc :)

[@breitlingl3990]

@@FPVTrond , Thanks a lot for your prompt reply. Will try both options and share the outcome with you. Warm Regards

[@FPVTrond]

Hi, google sketchup!

[@FPVTrond]

v4 (don't tell anyone, top secret project) ;)

[@FPVTrond]

CMA :) user/Epzonix on youtube

[@FPVTrond]

Google Sketchup :)

[@jakecrist6389]

what software ya using