Sub-250g plank (build)

[@FPVREVIEWS]

looks like fun, not my fav type of aircraft, but if it can work well and is simple, can;t argue with it. Success is always good, and wish you lots of it this coming year, Mr. iforce2d!!

[@ivantran3420]

I'm not first i'm not last, but when i see iforce i click fast.

[@aniketakabir1572]

Nice!!

[@MCsCreations]

Pretty impressive job, dude! Fantastic! 😮 Looking forward to the flight video! 😃 Happy new year!!!

[@Jon_G]

Really enjoying your build videos! Looking forward for the test flight, hopefully the weather will cooperate.

[@vollpfosten5249]

You make me envious. Beautiful thing. I want sth like that.

[@quadflopper1012]

something to think about, when i need to gouge out foam for equipment I made a tool out of a piece of conduit that i cut in half then notched the half so it could bend kinda like a spoon, sharpened the end then i heat the spoon end so it just glides through the foam, the big advantage is the surface of the foam it leaves behind has been melted, sealed and hardened making it probably twice a strong as foam that has just been gouged out without heat......

[@dcsmith5839]

Nice looking craft.Looking forward to flight video.

[@avejst]

Fantastic build Thanks for sharing your great designs Happy New Year

[@JakeBullit123]

As Bonio once said even better than the real thing. Just dial those throws down before maiden.

[@vtech8716]

Great model Sir. Happy new year, good luck

[@Fluburtur]

that press drill method for carving the inside is very smart, I usually jsut do it with a cutter and flat screwdriver or my dremel with printed router adapter

[@xjet]

Tomorrow's forecast for Tokoroa is brillant... fine, light winds, high temps but then (from Wednesday onwards) the winds come back :-(

[@pauljs75]

I wonder if iforce2d will find some stiff narrow-guage stainless wire? Run current through it and it heats up like nichrome, but unlike nichrome it stays plenty stiff. Can make loop or box shapes mounted to a stick, should work for hogging out internal cavities without the mess of the drilling/router on foam.

[@jeffbluejets2626]

@ 5:20 you say about wing adhering to the fuse....... Just a thought on using short lengths of the bamboo bbq sticks (about 4mm dia) pushed in to make a hole, then followed up by pulling out again and apply epoxy and refit. Sort of bamboo nail if you like. Currently looking at using some of the foam board as used in Flite Test stuff for reinforcing in the building foam. Surfaces need to be reasonably flat and sheet could be applied on edge as well if necessary and with paper still in place. Difficult to find in some places but just found some 600 x 420 x 5 mm sheets at Choice Shop in Aus.($4.00)

[@gizfpv]

This is very cool. Yes it does look like a nano goblin (which is an excellent aircraft) but your build is considerably cheaper! The nano goblins are very expensive for what they are

[@markgreco1962]

Your using the 18650 batteries more often. I have also been playing with those. I ordered a small electronic load to discharge them... whoops the cheep ass quad charger has a discharge function. Working on a graceful way to make a 3S that actually charges correctly.

[@jacksontenhave7959]

Very nice! I've been thinking of doing something like this.

[@otm646]

For the wing to fuselage joint you didn't love, you could use vertical tabs slotted and glued. Guitar picks roughed up, SIG style easy hinges used vertically or simply thin plywood glued in position works well.

[@microgliders]

great design well done

[@5c0u53]

Very nice little build :D , 18650 are definitely the way forward ( unless some LIPO miracle happens) For adding a little strength to that small bead Orange insulation foam( the battery bay) , craft type tissue paper and watered down floor varnish adds a fair bit or strength for very little weight.

[@mikemill69]

hey look it is a nano goblin

[@RobisonRacing68]

Where you are planning to put your 2s pack is exactly where my 2s1p pack is on my Nano Goblin. This should fly pretty good Chris! I'm tinkering with the idea of putting a Crossfire Rx in mine and make it long range. Let's see the effing FAA try to stop me from flying that one.

[@QuickCookie]

Great job! Which Motor, prop and ESC you used?

[@iforce2d]

1407 3500kv motor, 4x4.5 prop, vgood 6A ESC. Not sure if the ESC will handle it, we shall find out

[@bushhawkrcalt3281]

Would ut be poseible to make this out of depron?

[@big5astra]

Looks a bit like the Fauvel AV-36 glider - nice!

[@mistercohaagen]

I wonder if you could set up some chase video with two of these launched consecutively executing the same mission.

[@mistercohaagen]

Actually, with your synergistic skills... I wonder if it's possible to use a multirotor to precisely measure the ground elevation along a particular path, and then do a terrain-following mission with a plane, or as mentioned above with multiple planes. I can only imagine that lower would look more impressive, especially with the rolling hills you've got immediate access to.

[@lienmeat]

What size of carbon rod is that spar? Maybe you said but I missed it.

[@iforce2d]

I think it was 4mm

[@wololo10]

Very light congrats

[@otm646]

*Very light, congrats. 🤣

[@wololo10]

@@otm646 it's the Internet bro you don't need to perfect cooments

[@alpemxyz]

@@otm646 you must be fun at parties

[@europaeuropa3673]

Questionable stability. Low stall angle?

[@Koto-Sama]

could you make a video explaining how you design the plan and got is on to paper?

[@iforce2d]

kzbin.info/www/bejne/laKzo56waah8npo kzbin.info/www/bejne/n5qofqBthZemoas kzbin.info/www/bejne/f2OQimB4g9-AoNE

[@Koto-Sama]

@@iforce2d cool thx

[@QuickCookie]

Which foam are you using? And where is the best place to get that foam?

[@iforce2d]

kzbin.info/www/bejne/jnq8o6t7erOhpdU The second question depends entirely on where you live I guess....

[@EmbSysDev]

Hi Chris, Any chance of a series on how to learn to fly RC Aircraft or Quadcopters ? Your take on how you began this would be really great !! Happy new year and have a brilliant 2020.

[@iforce2d]

I made a series for quadcopters a while ago, some of the later videos (18-21) are about learning to fly. kzbin.info/aero/PLzidsatoEzejIpdla6_ggPcDCPJ9u4WHj

[@lalithkishore3774]

Can u share the file for making this plane . please it looks cool

[@iforce2d]

Take a look at the description.......

[@mistercohaagen]

forum.flitetest.com/index.php?threads/75-ft-goblin-strix-nano-goblin-sized.55104/ (unless you've got 1337 "stacked-slices" skillz)

[@droneredneck170]

Nice build👍👍

[@simont3686]

Niiice. But don't you think a 2s 600mah battery would be more than enough?

[@alpemxyz]

I mean, everything would be enough, but if you can get away with a bigger battery, you can get (normaly) better flight times.

[@alpemxyz]

Do you reckon that an upscaled version of this plane would be fine (a 30% upscale for example)? If so I might consider building one.

[@iforce2d]

Assuming this one flies ok, I don't see why a slightly larger one would have problems.

[@alpemxyz]

@@iforce2d just finished it! Now I just need to find the time to go flying

[@linecraftman3907]

How do you find and choose the airfoil shape for the wing?

[@iforce2d]

I used this airfoil on a previous plane and it seemed to do ok, so I just reused it. I don't recall if there was anything special about it that made me use it last time, I think I just found it here and didn't know any reason not to try it: airfoiltools.com/airfoil/details?airfoil=mh64-il Most likely I saw a thread on RCGroups that mentioned it.

[@charleshalfhide2936]

That's a great wing, what cad program do you use to draw up your models? Keep up the great work👍

[@iforce2d]

kzbin.info/www/bejne/laKzo56waah8npo

[@electronic7979]

👍

[@ΚΩΣΤΑΣΜΑΝΙΑΚΗΣ]

happy new wear my frent nice litle plane. the new regelason FAA try to stop me from flying

[@sandorbalogh6693]

Hello mester. Nano talon build ?

[@iforce2d]

I don't understand the question. Recently I made a video with nano talon, but even the 'kit' version comes mostly assembled kzbin.info/www/bejne/rZO3eIGAn7qEqrc

[@NovakinCore]

Hey mate, What type of foam are you using for these?

[@mbainrot]

not sure why its not longer on the bunnings website but its simular to this ->. www.knaufinsulation.com.au/product/climafoam-extruded-polystyrene-xps-board

[@jeffbluejets2626]

@@mbainrot Think you'll find many of these building insulation materials are being withdrawn as they are now considered to be a "fire risk". Parents had their house clad some 30 years ago with colourbonded aluminium and foam insulation combined. Even though, at the time, it was tested to be fire retarded, now considered fire risk by the "experts" and we all know the definition of an expert.

[@иньянь-е8м]

Спасибо

Why just not make a flying wing?

[@iforce2d]

I think I did....

@@iforce2d oh then somehow i missed it and I watch all your videos

[@iforce2d]

I mean the plane in this video is a flying wing, isn't it?

@@iforce2d oh OK, i dont know if there is a definition for flying wings but for me flying wings dont have fuselage, but im no exert im just watching your videos and learn stuff

[@iforce2d]

The CG needs to be about 15% from the front of the wing, very difficult to do with just a wing only. The fuselage also gives you somewhere to put the electronics.

[@ruedogs]

your elevator throws will be wayyyyyyyyyyyyyy to much ,looks great otherwise !!!! top effort dude ! you should try the PW51 foil its a blast!

[@MrTerrymiff]

2:49 kiwi cnc

[@neonuser456]

Great, it’s under 250g

[@utubeaccess7]

You keep getting so close to epic designs, but you always fail right at the end. You model a great airframe, build it out and wonder why it's too heavy. Use the build as a mold and construct the thing from hollow composites.

[@utubeaccess7]

Get rid of all that foam! Geez.

[@utubeaccess7]

The foam is doubling the weight..

[@iforce2d]

No, the foam does not double the weight. Packing tape over foam is generally lighter than hollow composites would be at this scale, for the same structural strength. Plus it's an order of magnitude quicker, cheaper and easier to build.

[@lienmeat]

I guess you've not seen any modern rc planes? Foam rc planes are VERY common and certain foams are extremely lightweight and durable. It doesn't need to be hollow to be light.