The World Models 1/3 Super Cub.

[Lynxman]

This thing is ridiculous. :o It's not exactly scale perfection, but it's a fun sports scale model (I hope).

I'm going to power it with a cheap hobbycity Turnigy-motor on 12S 5000, 6000 or 11000 mAh, whatever it needs to balance.



More info later as I put it together. Oh, and my friend bough a 1/3 J-3 from TWM as well.

[AmpAce]

Interesting project, I will be watching!

AmpAce

[Lynxman]

I don't plan to make a lot of mods for it. I'll make the vertical stab assembly removeable to make transportation easier. Maybe I'll recover it in sloartex some time. If I do I'll modify The wingtips to make them more scale as well. Now they are flat on the top. I think I'll change the shape of the wing leading edge where it goes through the fuselage to make it look more scale. I have ordered some Dubro 1/3 Cub wheels for it. The stock wheels look skinny and strange.

The construction is incredibly strong and is made from a lot of plywood. I would have used more balsa myself if I wasn't too lazy to build these days, but it's not going to be too heavy. From what I've seen on youtube it's a light flyer. The servos are supposed to be mounted in the tail. I might mount them all farther forward, in the cabin if possible with pull-pull wires, at least the rudder servo.

Putting it together can be done in a couple of nights if it's kept stock, it really is that easy to assemble. All the hinges are installed from the factory and if the manual is accurate they are also pinned.

I have ordered Hyperion Atlas DS20FMD for everything but the rudder and DS20UMD for the rudder. Should be more than adequate with sensible servo arm geometry.

[staggerwing]

What is weight as pictured & an estimation RTF ?


Thks
Bob

[Lynxman]

I haven't weighed it yet, but I will weigh the empty kit weight and post the data here soon.

[Lynxman]

Fuselage with complete landing gear and wheels installed: 3300 g
Cowl: 169 g
Wing tubes and struts: 1284 g
Balsa/ply internal trays: 130 g
Untrimmed windows/windshield: 289 g
Various hardware in a big bag: 545 g
Pilot bust: 110 g
Vertical stab: 139 g
Horizontal stabs with steel joiner rods: 406 g
LH wing: 1335 g
RH wing: 1323 g

Total kit weight: 9030 g (19.91 lbs)

The complete tank weighs 216 g, for those who want to gas it up.

[Lynxman]

Hyperion DS20FMD/UMD servo weight: 53 g * 7 = 371 g
Futaba R608FS receiver: 14 g
Dimensionengineering VHVBECs: 17 g * 3 = 51 g
~9 m of servo cable: 180 g
Motor: 840 g
Motor mount: 150 g
ESC: 125 g
Prop: 90 g

Estimated weight without batteries: 10851 g (23.92 lbs)

5000 mAh 12S ZippyH lipos: 1590 g
Estimated 5000 mAh weight: 12444 g (27.43 lbs)

6000 mAh 12S Hyperion lipos: 1630 g
Estimated 6000 mAh weight: 12481 g (27.52 lbs)

11000 mAh combined: 3220 g
Estimated 11000 mAh weight: 14071 g (31.02 lbs)


This should be pretty close unless I forgot something. What did I forget?

EDIT:
I forgot the motor mount.

EDIT 2:
I added lbs in brackets.

[aftica]

...

[Lynxman]

I'll head over to my friend and take some pics of the J-3 when he gets it. The J-3 is the old version with the fixed tail while mine is the new version with the removeable horizontal stabs. The old version has the kit number A186 for the J-3 and A186S for the Super. The new versions are called A186R and A186SR respectively.

[Lynxman]

I just finished milling out the parts for the motor mount. I'll finish it tomorrow. The side plates are 0.063" 2024-T3 and the thicker pieces are 6 mm 6082-T6 aluminium.

EDIT:
Oops. I made a mistake. :o I'll have to make new side plates. that's what happens when you come home from work tired and try to use your head.

[Proflyer]

Can't wait for the end result.

[Lynxman]

The J-3 arrived today along with the servos and wires. I have everything I need to finish it now except a 12S ESC, but I can prop it for 10S initially if I don't get a new ESC by the maiden.

As far as we can tell the only difference is the cowling, lack of flaps and longer ailerons on the J3. Since his is the old version the horizontal stabiliser is not removeable, while it is on my Super Cub. There is more room in the SUper cowling of course, both in length and width. The Super Cub has 207 mm of space from the cowling to firewall while the J3 has 190 mm.

[Lynxman]

Here's the almost finished motor mount. I milled two new side plates and drilled and tapped the bolt holes today. The only thing left is to bend the mounting flanges. I don't have a brake at home so I'll take it to work tomorrow and bend them there.

[gallfer]

I was just given a partially built 1/3 Cub and don't know what size motor to use. What's going in yours? Thanks! Now I need to get back to the B36 thread.

[Lynxman]

I'm going to use the one in the pictures. It's one of these: http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=7870&Product_Name=TGY_AerodriveXp_SK_Series_63-74_170Kv_/_3250W

I don't know if the constants are accurate, but it should be possible to drive a 23" prop, which is the scale diameter, at 10S or 12S and 2000-3000 W. More than enough power. I have a feeling the plane will fly quite comfortably even with just 1500 W available.

[gallfer]

Thank You, Gino

[gallfer]

What do you think your AUW will be in pounds? I'm looking at Hacker motors as well to see which one is close to your Turnigy. Thanks again! Gino

[Lynxman]

I added pounds to the weight estimates and measurements I posted earlier. Check my previous post.

Keep in mind I don't know for sure yet how it will fly.

[aftica]

...

[Lynxman]

I mounted the motor, prop and cowling and checked the balance without servos. It's slightly nose heavy with 12S 11 Ah in the nose of the fuselage (the tank area). I'm not sure if I should mount the elevator servos in the tail. I'll mount the rudder-servo in the cabin and use cables to the rudder.

[dlazarus6660]

Not to change the subject, What is the Cessna on the floor in the Yellow Super Cub pic?
What kit?
Any more pic's of the Cessna and a thread about it?

Daniel

[Lynxman]

That's a CPM 140-size Cessna 182: http://cmpairplane.com/scale/Sky%20Lane%20140Size.html

He doesn't have a thread on it. It flies with an Axi 5330 F3A and a propeller I made but an Axi 4130-20 would fly it just as well.

[Lynxman]

Here're a couple of pics of the nose with the motor installed.

[Lynxman]

I just ran the motor on 10S with a 22x10" Master Airscrew Scimitar prop. I got 1936 W which means ~55 A. It pulled something awful and sounded monstrous, but had a whine at idle. I'm going to fly on 10S and a 23" prop I think.

[Lynxman]

I just finished installing all the servos and stuff, and it seems to balance perfectly with the batteries where I had planned to put them. It's extremely difficult to check the balance on my own though. I'll check it more accurately later.

I ended up using a single servo for the elevator as well, and mounted both the rudder and elevator servo in the cabin instead of back in the tail. I used a carbon fiber tube rod for the elevator with a support in the middle. Works great! Had it been a 3D plane I would have used servos in the tail of course.

I just heard that two other friends have just finished a pair of 3 m Super Decathlons. We'll create a really good eclipse this summer when we fly together, all four of us. :)

[gallfer]

Lynxman, What size servos did you use? Do you have pics of the installation? thank you for being my 'bird dog'! Gino

[Lynxman]

Here's a pic of the servos. I used hard 12x12 mm balsa to strengthen the tray on the underside. I cut it smaller and glued it closer to the floor than was intended in the kit. The elevator, ailerons and flap servos are Hyperion Atlas DS20FMD. It has 14/16.4 kg of holding torque and 7/8.2 kg dynamic torque at 4.8/6 V. The rudder servo is a DS20UMD with 20.9/23.5 kg holding torque and 11.6/13.8 kg dynamic torque. They could use some stronger servo arms, but they should do the job fine.

The plane is close to finished now. What remains is to install the windows, secure servo extensions up to the wings, drill the wing tubes and install the BECs.

[Lynxman]

Here's a 17 mm shorter motor mount for my friend's J-3. I also made the distance between the mounting feet a little shorter to soften the rubber mounts a little. He needs a little nose weight so I didn't bother milling out the chunk in the middle of the thick plate.

[Ron101]

Those are cool looking mounts lynxman
you make all the cool stuff

Ron

[Lynxman]

Here's the J-3 with the motor mounted.

[Coop]

Awesome motor mounts. You should think of doing these and ones for smaller planes as a small business.

[Lynxman]

If only I had the time and motivation to do it. :)


My friend is trying to figure out how to mount the batteries in his. I'm putting mine in the same area. 12S 10 Ah fill up the nose pretty well. :D

[Lynxman]

I removed the roof of my Super Cub today as I plan to install a lexan roof instead for a more scale appearance. I would like to make the greenhouse variant of the Cub later on and recover it in solartex. It won't be perfectly scale, I wasn't going for that either, but it will look alright in the end. :) If I recover it I will also remove a LOT of wood from the tail. It's seriously beefy back there.

I like this scheme. It looks so classic with those silver wings. It doesn't have flaps like mine, but it doesn't matter to me: http://www.airliners.net/photo/Piper-L-18C-Super/1260726/L/

[Lynxman]

I tried to measure the torque the Hyperion DS20FMD servos was able to produce. The scale stopped at ~5,4 kg/1 cm at 5 V and 7 kg/1 cm at 6 V when I moved the servo against the digital fish scale. Not too far off spec. The holding torque seems to be close to spec as well. The UMD feels stronger when I feel it by hand.

The FMD pulled 1,7 A when I stalled it at 5 V and 2,1 A when I stalled it at 6 V. Quite a lot of current!

These are not the most accurate or best methods of measurement possible so take it with a pinch of salt. :)

This means that I have:
12,8/16,6 kg/cm of torque on the elevators at 5 V/6 V
7,8/10,2 kg/cm of torque on the ailerons at 5 V/6 V

I'd like to have shorter arms on the wing servos, but the bloody servo hatch is in the way of longer end points. I'll probably cut the hatch open to allow the link to pass through the surface and use a hole closer to the servo axis.

[Lynxman]

It looks like it will weigh less than 13400 g (29,14 lbs) with all the batteries, 12S 11 Ah.

[AmpAce]

That weight seems very good with that much battery capacity on board. She should fly very well.

I like your motor mount, great work, although I wonder about the real necessity of the rubber mounts for an electric. If the rubber feet are of the right stiffness, they may allow you to get a more realistic sound resonant frequency through the fuselage. It will be interesting to see. You might even try different densities of rubber to see what it does to the sound, just as an experiment, especially if you think the sound can be improved, once you fly it.

One thing you may want to consider---I see that you are running the rudder pull-pull directly off the servo. This can cause premature wear to the servo bearings, due to the extra load on them. You could relieve this load by using a short rod to a bellcrank, with the pull-pull cables attatched to that, and letting the bellcrank bearing take up the stress load against the cables. I've done this, even on much smaller models, and it has worked well.

Looking forward to a flight video!

AmpAce

[Lynxman]

The sound is the only reason I use rubber mounts. I always use rubber mounts on my big electrics to reduce the whine. :)

[Lynxman]

The black interior and glass roof looks a lot better. It's starting to look like a Super Cub now.

[gallfer]

I'm in the process of fitting a windshield to my Citabria. Hope it looks half as good as yours! Was yours made from flat stock or was it formed? What did you use to affix it to the airframe? Thanks, Gino

[Lynxman]

This windshield was included in the kit. I made the roof from 1 mm thick lexan.

[Lynxman]

I did major surgery on the plane today. I cut away the rest of the roof and the rear cabin walls to make the greenhouse windows. I'm almost finished with the structural work so I'll paint it black soon and then cover with clear monokote. If that doesn't look good I'll use lexan back there as well.

[Lynxman]

Just finished covering the bare bits. The Monokote transparent looks nice as windows.

[Lynxman]

I made a cowl hatch for accessing the motor and battery connectors. I wanted to makea battery tray in there, but it's a little tight so I'll just make the battery connectors accessible through the firewall. Much easier to deal with it up here compared to in the cabin under the wing. I'm wondering if I should make a hatch for the other side as well. It looks a bit lopsided with a hatch on one side only. :)

The propeller is a 23x10 JXF prop from hobbycity. It was perfectly balanced when I got it and the finish is great. I painted it today.

The Turnigy Sentilon 100A HV ESC arrived today. It looks like a well built unit. I'm not sure I'll bother installing it though, as I don't need 12S capability.

[Lynxman]

Finished! :D

I'll maiden it tomorrow if the weather permits. It was -25°C and breezy here today which is insane to stand around in, but hopefully it'll warm up a little for tomorrow.

Oh yeah... the new prop sounds fantastic and the Turnigy ESC works. I can't run it up to ful throttle indoors though. I stayed below mid.

[Lynxman]

My friend's J-3 is starting to come together as well.

[Lynxman]

Well, that was uneventful. Hehe :D

I'll post a video of the maiden flight later. It was freezing, -25°C. Three windows broke and the plane snapped, crackled and popped during the walk down to the river.

[Lynxman]

A video on Vimeo in high quality:
http://vimeo.com/3211236

Here's a video on youtube: http://www.youtube.com/watch?v=8x1Ul80g594

I used 3700 mAh out of 12000 available and flew for maybe a little over 10 minutes total. I flew more after the video.

[Ron101]

nice lynxman,
you know I don't fly if it's under 60 degrees here in california
I have know idea how you can fly when it's that cold..lol
the plane looks great.. sweet gentle flyer

Ron

[Lynxman]

Hehe. I just wear lots of clothes. :) The right side of my face was really cold though from the wind.

[Lynxman]

My friend took these pictures of the plane with his camera.

[Lynxman]

I used an altimeter in the Cub when I flew today. It showed that I reached a maximum altitude of 486' above the river. The plane looks pretty small at that altitude. I didn't think 500' was that high up.

[aftica]

...

[Lynxman]

It feels very stable and smooth. It will fly extremely slowly and is completely predictable on landing.

I can post some DXF drawings of the mounts tonight.

[Lynxman]

Here's a DXF file with the shapes I ued to cut the parts. The 6 mm holes are for the countersink tools.

[aftica]

...

[Lynxman]

We plan to fly both Cubs together tomorrow if the weather is ok. If we do it here at my place I'll post a video. I won't be able to post a video if we do it at work for security reasons.

[Lynxman]

The cold was deadly today, so we didn't fly. We got ~10 cm of snow last night so we ploughed a 60x8 m runway on the river instead. It turned out great.

[Ben-Rod]

I just bought the same motor(Turnigy 6374-170) and I would like to know what you think of it. I plan to run 12s in either the 88" Extreme Flight 300 or the 3DHobby 89" Slick.

Do tou think this would be enough to 3D a model that size, 17-19 lbs? In other words do you think this motor could be pushed to the 4000 watt range with maybe a 24x10 prop and survive?

Ben Rodriguez

[Lynxman]

My friend bought the same motor for his Cub, but it seems to have a little higher kv than mine, and the stator looks like it has one less turns of wire. He runs on 12S and with a 20x10 prop he got 3500 W.

So far min is doing well and I'm extremely happy with it for the ridiculously low price, but I haven't done enough testing to recommend it with confidence. I suspect it will easilly survive bursts of 4 kW though.

[Ben-Rod]

Thanks for the quick reply. I just couldnt pass it up as they put the darn thing on sale for 63.99. With EMS shipping it came to 86 bucks and some change to the door. I figure heck, I spend more the that for dinner out sometimes its worth the gamble.

I want to run it with the Turnigy 100HV but it looks they are out of stock on them. If you or know anyone that has one laying around I'd be interested in buying it.

Thanks and by the way great job on the Cub, looks like it flies awesome!!!!

Forgot to ask, what king of amps was he seeing at 3500 watts? Also which version of the Turnigy 100HV are you guys running?

Ben Rodriguez

[Lynxman]

I've got Version 4 of the Turnigy 100 HV ESC. My friend has a Kontronik Power Jazz. I don't know what his current draw was, but considering the battery was 10 Ah the voltage was probably pretty high, so I'm guessing ~80 A.

[LBJ]

I'm still trying to find who sells World Models?

[Geoff Dryer]

The only North American distributor / dealer listed is Airborne Models
http://www.airborne-models.com/Index.asp

[LBJ]

Dayumm, that's dangerous. I need to stop and think before I ask such a loaded question. I just ordered a 1/5 scale Minimoa from World Models!!! Only $20 shipping. Thanks for the link.

[Lynxman]

Oh my, that Minimoa is nice. :)

[Ben-Rod]

Well I'll ya, Hobby City does it again. Ordered my Turnigy 6374-170 on friday the 13 and I just recieved it today. WoW thats fast!

I think I will pull it apart and replace the front and rear barings as it will be going on a 50cc 3D Hobby Extra 300 SHP running 2 x 6s 5000 mah swinging a 22x10-24x10.

Wish me luck...

Ben Rodriguez

[Lynxman]

I did a 25 minute long flight today. It gets kind of boring up there all alone for 25 minutes. Hehe I looped and rolled it with no problems. It rolls very slowly and not exactly axial, hehe. The loops was no problem. I actually entered the loop while in a whallow climb and it slowly flew over the top. I hit 592' today which was VERY high up. First I climbed what I thought was really high, but it was just 360', so I climbed again to 592' to see how high 500' really is. It snowed again last night so I had to plough the runway again. The plane had no problems taking off and landing in 5 cm of snow.

After the maiden I installed softer rubber on the motor mount. It sounds a lot better now and doesn't whine a lot. It actually sounds like a Cub, or an ultralight.

[Lynxman]

I used 8100 mAh out of 12000 available, so 25 minutes is a good max duration to aim for.

[Lynxman]

Here's a pic of the plane trying to crush me.

[iflytailies]

how do you get your lipos to work in these cold temperatures??? Thanks

http://iflytailies.jimdo.com/

[Lynxman]

It was just -5 today. Not that cold. If I let the plane sit before I fly they will cool off enough to cause problems, but they warm up after a little slow running. My Cub interior didn't cool off before I flew today, but my friend's helicopter did.

[Lynxman]

My friend maidened his J3 today. We flew together a lot and it sounded really cool with two of these passing over.

The small Cub is a Hyperion 25 size I think.

[Lynxman]

Video: http://vimeo.com/3513039

the camera isn't sensitive enough to capture the cool sound in the air, but you hear how nice my Super Cub sounds on take off. :)

I flew mine for 20,5 minutes and used 7000 mAh (12000 mAh batteries).

[Skyking213]

Lynxman,
Very nice video there!
My buddy and I are planning a build of this Super Cub as an FPV platform.
Could I get you to clairify your battery (10S or 12S?) and motor, prop choices in both the Cub (Yellow) and Super Cub (Red and White) as seen in the video, they seem close to perfect!
Congratulations on a very nice build!
Scott Brown

[Lynxman]

I'm flying on 10S and my friend is flying on 12S. Our motors have different kv value, despite being the same motor model and make. I have three 4S 5000 mAh Zippy-H batteries in parallel to make one 4S3P 15000 mAh pack, and two 6S 6000 mAh packs to make one 6S2P 1200 mAh pack. The 4S3P and 6S2P are connected in series to give 10S and 12000 mAh of useable capacity:

1/3 scale The World Models Super Cub:
Motor: Turnigy AerodriveXp SK Series 63-74 170Kv
ESC: Turnigy Sentilon100A HV 5-12S BESC (Ver4)
Batteries: A combination of Zippy-H 5000 mAh 4S and Hyperion 6000 mAh 6S. 10S 12000 mAh total capacity.
Propeller: JXF/XR 3D/Slow 23x10
BECs: 3x Dimensionengineering VHVBEC
Servos: 5x Hyperion DS20FMD + 1x DS20UMD
Rx: Futaba R608FS

1/3 scale The World Models J-3 Cub:
Motor: Turnigy AerodriveXp SK Series 63-74 170Kv
ESC: Kontronik Power Jazz
Batteries: 6x Zippy-H 5000 mAh 4S, 12S 10000 mAh.
Propeller: JXF/XR 3D/Slow 21x10
BECs: 3x Dimensionengineering VHVBEC
Servos: 3x Hyperion DS20FMD + 1x DS20UMD
Rx: Futaba R6014FS

[Parkk]

Beautiful flight!

[Skyking213]

I'm flying on 10S and my friend is flying on 12S. Our motors have different kv value, despite being the same motor model and make. I have three 4S 5000 mAh Zippy-H batteries in parallel to make one 4S3P 15000 mAh pack, and two 6S 6000 mAh packs to make one 6S2P 1200 mAh pack. The 4S3P and 6S2P are connected in series to give 10S and 12000 mAh of useable capacity:

1/3 scale The World Models Super Cub:
Motor: Turnigy AerodriveXp SK Series 63-74 170Kv
ESC: Turnigy Sentilon100A HV 5-12S BESC (Ver4)
Batteries: A combination of Zippy-H 5000 mAh 4S and Hyperion 6000 mAh 6S. 10S 12000 mAh total capacity.
Propeller: JXF/XR 3D/Slow 23x10
BECs: 3x Dimensionengineering VHVBEC
Servos: 5x Hyperion DS20FMD + 1x DS20UMD
Rx: Futaba R608FS

1/3 scale The World Models J-3 Cub:
Motor: Turnigy AerodriveXp SK Series 63-74 170Kv
ESC: Kontronik Power Jazz
Batteries: 6x Zippy-H 5000 mAh 4S, 12S 10000 mAh.
Propeller: JXF/XR 3D/Slow 21x10
BECs: 3x Dimensionengineering VHVBEC
Servos: 3x Hyperion DS20FMD + 1x DS20UMD
Rx: Futaba R6014FS

Thanks!

That is exactly what we needed!
I'll post tp this thread when we get futher along!
ScottB

[Lynxman]

I'd love to see the FPV setup. The plane's a super smooth flyer.

I also fly FPV, but I use a Multiplex Twin Star II.

[Lynxman]

I've flown it Auite a lot lately. On tuesday I made a 37 minute long flight on one charge, and today I flew for 25 minutes. We have daylight 24/7 here now so I can fly almost whenever I feel like it.

I can turn it so tightly in the air that it almost looks like it's turning around one wingtip. It's pretty enjoyable to fly, and it sounds fantastic with nothing but prop noise!

I also flew my F-16 today and made lots of rough landings. hehe. the contrast between a 1/3 Cub and 1/8 F16 is insane.

[tupelo]

Hi Lynxman

After watching your awesome Super Cub videos I´m interested in buying one. I live in Finland. Did you buy yours from Norway or somewhere else? Did you get a good deal?

How do you transport your Cub to the flying site? I have an Alfa 159. Do you think it will fit? How long are the wing halves?

Thanks in advance

Tupelo
Helsinki
Finland

[Lynxman]

Hi Tupelo.

I bought mine from www.elefun.no, a wonderful norwegian shop. I didn't get a special deal on the plane, but I got a nice deal on the servos and hardware since I ordered for two planes.

I don't have the plane with me here because I keep it at the flying site, but each wing halfis ~170 cm long. I doubt very much that it will fit in an Alfa 159. My friend has a roof mount for his Cub and we use his car to drive the planes to the site when we need to. It works well as the maximum speed on these roads is 50 km/h. We plan to take a few trips with the planes in an enclosed trailer this summer.

[Wilit run? 353]

nice model

can I put together two 5S 5000mAh zippys to make a 10S 10000mAh lipo, will this power this plane ok?

[Lynxman]

You'll need four 5S1P 5000 packs to make a 10S2P 10000 mAh. If you only have two packs you will get 10S 5000 mAh. Either will power it well with the same motor as I have, or similar, but you'll need extra nose weight.

[Jim Young]

Hi,

I'm considering this same motor for a large scale project. Can you tell me what current you are drawing on 10S with the 23x10 prop? I have a CC 85HV, and just want to make sure I won't over current it. I could live with a 22x10 if I have to.

Thanks,

Jim

P.S. How is your motor holding up, I've seen several posts about the bearings going after a few flights. An comments there? I was wondering it the motors are delivered with no lubricant, and if they are properly lubed they would be fine?

[lsky]

Hi,

Can you explain the electronic schema of use of the 3 VHVBEC ?

I'm interested to replace dual 2S lipo rx in my big elec planes.

Loïc

[peppern75]

Hi,

I'm considering this same motor for a large scale project. Can you tell me what current you are drawing on 10S with the 23x10 prop? I have a CC 85HV, and just want to make sure I won't over current it. I could live with a 22x10 if I have to.

Thanks,

Jim

P.S. How is your motor holding up, I've seen several posts about the bearings going after a few flights. An comments there? I was wondering it the motors are delivered with no lubricant, and if they are properly lubed they would be fine?

I've use this motor (TGY AerodriveXp SK Series 63-74) in my old 1:3.5 scale Bücker Jungmann, and have 26 flights with it. The bearings seems ok, but a couple of days ago a magnet was loosen. At the flying field I've glued it with CA and the problem was gone. I use 26x10 prop and 10S1p 5000 mAh, with a Current draw of 82 amp. This gives me approx 10 kg thrust.

[Lynxman]

Very nice plane, Peppern. :) I think I'm getting ~80-90 A draw with my 23x10 3D-prop (2930 W) on 10S.

lsky.
My three VHVBECs are connected in parallel both on the input and output. The outputs are spread out on the receiver connectors to distribute the current draw on the receiver circuit board. These BECs are designed to be used in parallel, and you can use as many as you like in parallel to achieve the necessary current rating. Three units gives me 7,5 A max continous current and 12 A burst.

[Jim Young]

Thanks for the info! Nice planes!

-Jim