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Planktopia: DIY RC planes ( WW1 planes will be included in due course )

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I'm stunned at the lengths of some of the replacement bars in the back of our local logging supply...in a "how can any human wield that thing" kind of way.

That little electric Stihl is awesome limber, and great for small to medium sized tress...and totally quiet between cuts, which I like from a safety perspective.

Ya gotta watch for Squatch. :ph34r:

 

Of course it's not a professional logger "cut manly sized trees in a manly way" kind of saw, but for my job it does the deed 90% of the time.

I don't cut often enough to wield even the 311 for too long...wears me out.

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Nice. That saw is probably older than many people on this forum.  :biggrin:

 

We still have an 025 bought during The Great Ice Storm of '98, still works and easily has over 5000 hours on it.

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It's an MS 311, so not that old.

 I'd better start it up on Mon, been a while.

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9 minutes ago, Gambit21 said:

I'm stunned at the lengths of some of the replacement bars in the back of our local logging supply...in a "how can any human wield that thing" kind of way.

That little electric Stihl is awesome limber, and great for small to medium sized tress...and totally quiet between cuts, which I like from a safety perspective.

Ya gotta watch for Squatch. :ph34r:

 

Of course it's not a professional logger "cut manly sized trees in a manly way" kind of saw, but for my job it does the deed 90% of the time.

I don't cut often enough to wield even the 311 for too long...wears me out.

 

Wears you out? Maybe if you spent less time with the (not allowed to mention it by name) and more time outside, you could work longer. :P

 

I carried the 460 for 10 years and I'm on year 4(?) with the 461, and I feel naked if I don't have it in my hands.

 

Found this old pic of the 460 post takedown. That job was tough, but fun.

 

 

012.JPG

Just now, Gambit21 said:

It's an MS 311, so not that old.

 I'd better start it up on Mon, been a while.

 

Was referring to plank's 021. You posted while I was responding to his post above your.

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Everyone in this thread: “yeah I used that one Stihl chainsaw to topple Mount Everest, and then I carved it up into a statue.”

 

Me: I can break a small stick in half on my knee if I try. 

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Hey i can upgrade your knee break with a foot stamp, for free!

 

Take thicker wood length.

Lean against rock or other solid object.

Stamp down hard  with sole of boot in middle area of wood. 

Wood breaks with crackle snap!

Collect broken parts of wood and create fire.

Be warm.

 

 

S! P

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17 hours ago, =TBAS=Sshadow14 said:

Music from a record is not better thats just what people with a foolish attachment to the past say.

Firstly its Mono so theres a big downside,
2nd its mechanical and gets mechanical noise (you can hear the needle on the record)
Lastly The amount of music data that fits onto an entire record is about the same amount of data used in 1 minute of music on a CD.
(So its impossible a record could ever sound remotely near the same quality.
you would need a special player with at least maybe 15 arms and 15 records with 1 instrument per record then playing all at same time but thats still filled with mech noise)

It would be like saying black and white photos from the 50's are higher resolution or better than a 20Megapixel Digital photo.
Or that a Car with Carburetor is better than fuel injection its just silly,
 

 

Vinyl records are not mono, just some of them.

Uncompressed you have the same amount of music on a cd as on a vinyl disc. I guess you are thinking of mp3s. If you do not hear the difference betwren a good analog recording and a 128kbps mp3 you must be very lucky to have a really bad music equipment.

A 35mm analog fotography is roughly equivalent to 87 Megapixels.

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analogic in a way means of infinite variations, digital on the other hand is mathematically limited

 

at least till i get my reverse entropy algorythm working

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8 hours ago, 216th_Nocke said:

 

Uncompressed you have the same amount of music on a cd as on a vinyl disc. I guess you are thinking of mp3s. If you do not hear the difference betwren a good analog recording and

 

Vinyl sounds better.

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And vinyl is more fun. Ahhhhh, the days of buying albums... :cool:

 

I remember taking my three-speed chopper (like the pic below) to the mall to buy Donny Osmond 45s. Not sure I even was 10 years-old. Thank God there were no iPods and we actually went out and played.

 

Being a kid was fun in the 70s.

 

 

 

 

 

 

choppers.jpg

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Chaps.

 

Weather: Wet, overcast, appalling for RC flying. Back to the garage.

 

My first hot wire wing. Wire was too cool and made ridges. It will still fly.

Fibre glass spar ( 30 gr ) wing core (60 gr ? ), will try not to tape the heck out of this one.

This is really half of one wing but I decided to take it easy and just get this one right first.

Planing on making it an aerobatic glider but so far it's looking like a stunter... heck.

Hoerner wingtips just because it was technically challenging to do it. Looks ok.

Spar is on top of wing as I fail to see why putting underneath makes sense.

Will use linear reinforced tape to stop tension under wing. ( trying to not use too much tape...)

All up I hope this wing to be maybe about 150 to 200 gr. and fairly indestructible.

The GRP wing spar is pretty hefty. ( it's a tent pole and I have loads of them. )

Reduced the length of my hot wire to get current up as I have fixed voltage source.

This was the secret to getting a good cut and next wing will be pretty good.

Wire was recycled out of a heating element.

 

No I didn't get the chopper in the '70's... I had a Raleigh "mustang". It was cool.

( I was useless on it and never jumped the ramp what we made... unco' as all heck.)

S! Canada! ( I just like saying that for some reason... )

 

The wing airfoil is a random one I found. Looks ok I guess.

Maybe be a tad fat for the high winds we get here.

Flying into the wind is cool by the way. : - )

 

Министерство гаражной авиации!

 

Pictures:

 

 

IMG_0203.thumb.JPG.7b5ff702f39efb18abd7779b9c4bc240.JPG

 

Hot wire pen. I mean it's just logical. Use it to slot and dig. It's great. I have extractor fan for fumes.

 

 

IMG_0204.thumb.JPG.00a0f08be6b145acd41548f0c26b48b2.JPG

 

Airfoil random as all blinking heck.

 

IMG_0205.thumb.JPG.78cda11460a9c45af8b0302eb431a8c7.JPG

 

On the kitchen table for photo shoot. Wingtips are separate to facilitate cutting Hoerner  angle.

 

 

IMG_0207.thumb.JPG.5880c0990fcbdb0ff735b71766e10f01.JPG

 

A not so great pic of the angle. Will be fine when grafted onto wing. : - )

 

Salute!

 

Planky.

Edited by Plank

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That's looking awesome Plank!

 

What do you need to make an RC plane? Are the materials expensive? Might have a look at making an RC plane for my next project.

 

S!

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kids dont go out any more cause of the mass media manipulation to seed terror

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Hey Stumble,

 

Basic set up:

 

Spektrum Dx4e

Orange Rx receiver.

Motor ( 3mm  shaft 100 watts  )

Esc ( 10 to 30 amp )

Servos  ( x 4 )

Servo Y-lead. ( for ailerons )

Servo extension leads ( for servos in empennage )

Battery and charger. ( Small 3cell lipo )

Battery charge tester.

 

 

All this stuff you can get second hand or cheap at some online shops.

 

The plane can be made from polystyrene foam ( polybox's etc ), balsa wood, even cardboard...

 

Learning the ropes on RC desk pilot is really important. Or Picasim.

You have to be able to steer your plane automatically regardless of which

way you are looking at it, left or right side, coming or going. That is the hard part!

Took me ages to get that sorted out so I don't even think about it anymore.

( Amazing what your brain can do...eh.)

 

AND be prepared to see your creation nose dive into the ground at speed.

Pick it up, go home and rebuild or start again!

 

Be careful of lipo batteries! They explode/catch fire if internally OR externally short circuited.

Never charge them inside a dwelling and treat them with respect.

I keep mine in a 50cal ammunition box. : - )

 

Once you get a good basic RC set up you can transfer it between models.

The servos are so cheap you can leave them in wings etc. I buy them in batches.

They do break now and then so I keep them for spares. ( they are tiny! )

 

The thing that really surprised me was how fast a small plane can go with the throttle on 100%

With a good battery and a nice clean fast plane you can go hundreds of metres before

you realise it's getting away on you. ( Small parks are good for slow planes... not for speeders...)

My first good flight was down wind with the throttle jammed open, did I get a shock!

 

Now I am flying into the wind at the park on rough days. It's very good fun and hard flying. : - )

 

I have a couple of helicopters but they have built in heading lock gyro which totally kills the vibe.

( they won't weather vane into the wind... which is totally boring.)

 

Hello Raaaid!

You should see my local park, the kids play soccer like a religion round here! The place is swarming with them

in summer. So they do get out !  and the dog walkers. and me: The lone crabby plane flying guy! Ha!

I love my local park. It's awesome. and the trees!

 

Salute!

 

Plank.

 

 

 

 

 

 

 

Edited by Plank

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4 minutes ago, Plank said:

 

Be careful of lipo batteries! They explode/catch fire if internally OR externally short circuited.

Never charge them inside a dwelling and treat them with respect.

I keep mine in a 50cal ammunition box. : - )

 

 

 

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Hello chaps.

 

My new RC plane:

 

GRP wing spar.

Carbon fibre fuse with polystyrene covering. ( Dentable but not breakable...)

I have a horrible feeling this will be one fast little plane. Oops.

Weighs in at 500gr with the RX and the two aileron servos out and prop.

Crappy glide test in back yard gets maybe 6 metres distance with a light chuck  at say 2 metres altitude.

so that is a super rough 1:3 glide with the ailerons lose and not quite balanced yet. 

which means it will be ok in high wind. ( fingers crossed ).

 

IMG_0208.thumb.jpg.29acc36d243b393da9d41dd98e95b5d1.jpg

 

 

IMG_0209.thumb.JPG.37055c687b43b108eaa76fe4143950f7.JPG

 

I am dreading the task of shimming the wing to get it to fly level... eye-o-meter will have to do for the maiden.

 

Salute!

 

Plank.

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Thank looks like a fine creation, Plank, but what I really want to know is when you are going to build a DIY biplane?

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Dear Unreasonable.

 

That is a very good question.

 

Salute!

 

Planky.

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Hurrah!

New wing!

And wider!

 

IMG_0210.thumb.JPG.54c239190562e9c81561f5b2e00d3c16.JPG

 

IMG_0211.thumb.JPG.170db16affb01e89d34af6f07b3f8f85.JPG

 

 

 

IMG_0212.thumb.JPG.f8f5cab2e75a367b954fdfa7ef3e9706.JPG

 

Salute!

 

Plank!

PS. Dear Unreasonable Stop am considering Nieuport  n28 stop will fly over for a cuppa stop keep your windsock up stop.

 

Edited by Plank
oh you know on second thoughts all those ranty bits looked over done.
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Good morning!

 

What does fear mean??? fear of crappy DIY polystyrene monoplanes? Or Sir Unreasonable keeping his windsock up?

 

Or maybe it's the conceptualistion of a Plank N28? Nieuplank? hmm...

 

AND I discovered the aviation terminology for a long carbon fibre tube running the length of your fuselage:

a longerun.

 

I has a longerun in my fuselage... and you can take that to the bank. : - )

 

S! P.

 

 

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I think we’re all ready for plank’s new home built 747. Crossing my fingers that I wasn’t just guessing there and that plank actually has his 747 sitting in a hangar somewhere, and just hasn’t gotten around to telling us. 

Edited by angus26
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Great video. That thing would fly even better if they put the dog in the cockpit and installed some RC controls.

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Hello chaps.

 

Took the new plane flying today and got some air time in.

 

Evening, gusty wind changing direction regularly. Yey!

Flying was an absolute  mare! Plane was all over the place, looping, pylon turning etc.

 

What a blast though!

Managed quite a few close shaves with the ground etc.

Cartwheeled it a few times due to the sharp corners on the wing tips catching on the turf.

( Oh well, style comes at a price they say...)

 

Nothing broke though!

Carbon fibre longerun and wingspar is the final word really.

 

Pro tip: Balancing.

 

When on the balancer and it's OK, push down on the tail and see what it does.

If it does not return to level and tries to go vertical then you have issues.

Mine did that.

I moved things around and then found that it always wanted to return to level.

It's all magic I think and you have to faff about till it's "right".

Proof is in the landing but.

 

Had a really good time flying and am chuffed the plane worked out pretty well.

It is quick, nippy, ok roll, glides ok and can handle some good strong wind.

And it's robust! Heck.

 

and it dives like absolute demon. Hecking blinkers!

I was not even trying and it sliced through the air like an razor!

 

It's a cracker!

 

Salute!

 

Planky.

 

PS. all those hours on R/C deskpilot and Picasim paid dividends when I managed a couple of extremely hairy landings etc. I kid you not!

 

 

Edited by Plank

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New wing in the building.

 

Learned how to cut taper wing. Wow. This changes things.

Introducing "lefty" the first wing of many I feel. : - )

And yes "righty" will turn up after lunch I think.

 

S! P.

 

541683986_WingLeftytaper.thumb.jpg.24611daceccc36e03d87a4c422c4368d.jpg

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Morning chaps!

 

Went to the park with my plane last evening and let rip.

First nose dive into the turf loosened the prop and motor shell ( stunting too low again...) 

so I had to walk back to the garage to fettle everything.

( made a new shaft with proper ground flats and glued it all back together)

 

Second attempt was much better.

Light winds, a bit gusty.

Flying into the wind was exciting, the elevator was very touchy.

The plane would up down like crazy. 

Began to get the busy working across the wind with bank turns etc.

Looping: too easy.

 

Began to climb up cut the motor and glide down.

Doing this into the wind was quite nice and relaxing. : -)

Kick the motor back in and back up she goes.

 

After a bit of gliding I started to get carried away and carve up the

3D box. Heck it's a knife fighter all right.  even with the enormous wing span.

And then.... I flew it into the ground. Crunch.

 

Tail came off ( only held on with foam tape )

But the rudder push rod telegraphed into the servo and broke it.

So off come the push rods and back to servos in the tail.

 

Wow. Really had a blast and all the stuff that I learned in Picasim helped massively.

Everything worked and the powered aerobatic glider looks like a done deal.

Wing shape will be the next investigation. ( Fuselage seems matured now ).

 

Best highlight:

 

Looping into the wind and skimming the ground at speed on the pull out. weeeeee!!!!

 

Right back to rebuilding.

 

Salute.

 

Plank.

 

 

 

 

 

 

 

 

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You should take a video of it flying. Would be cool to see how to move around.

 

How long does the battery last? What type are you using?

 

S!

Stumble.

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Hello Stumble!

 

Videos... oh well maybe. Gosh. :- )

 

Battery is an antique 3 cell small one. Maybe 800mha?

Not sure. No label.

Will get new ones when they come up on special.

Have a 3 cell 2.2 Ah but have not used it yet.

And I always crash before the battery runs out!

 

My motor pulls 10amps with an 9x4.5 prop on the bench.

Not sure with my new prop... it's smaller .

ESC is rated for 40A continuous. So no worries there...

 

Working out how to fit the servos in the tail again.

Never again with the long pushrods!

 

soooo I am back in the garage glueing stuff back together...

 

Salute!

 

Planky.

 

 

 

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Back in the garage!

 

Moved servos to empennage. ( Short, thick, adjustable control rods. )

This placement seems the easiest without getting all fiddly on it.

Now in the midst of rebalancing the CoG by moving the motor and battery forward.

( Not a big fan of adding ballast just to balance out...unless in the field).

 

Yes that is a Scorpion 2212 and the prop is a 6" by 4.5". ( may go larger diameter...)

 

Pics!

 

IMG_0221.thumb.JPG.f30449d6f6d8d9190ddb5ecfe84add7b.JPG

 

 

IMG_0222.thumb.JPG.7b716bebd98555b7b4785d835d4f5e6f.JPG

 

 

IMG_0223.thumb.JPG.38dd78524eafa3f51bd6eec2f09a5a60.JPG

 

 

Salute!

 

Planky.

 

 

 

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Forgive me for asking if you’ve already said this, but what are the dimensions?

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Hello!

 

Wingspan = 1330 mm

Length = 1030 mm

Weight =  740 g

 

It put on weight fixing all the broken poly etc, too much glue and tape.

But it's pretty darn robust.

Next stage will be a whole new build with less glue and tape. : - )

 

 

IMG_0224.thumb.JPG.cbb90c28c700b3d71ab7a410457581f9.JPG

 

The carnage after furious building rebuilding and mistakes and recoveries! All on a shoe string!

 

Newest build tech is balsa stuck to poly with double sided tape, super quick and tidy!

 

Salute!

 

Planky. ( absolutely famished! ) 

 

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Boom!

 

Looped too low and the tail come off! oops.

But it flew pretty darn well this time. Better CoG.

posted a rant on RCGroups. In the foamies section.

 

2022068249_IMG_0228plank.thumb.jpg.c07df47b55136927a68b0606fa309486.jpg982035091_IMG_0229Plank.thumb.jpg.114d9b326180e40329eb9ae32bd0396a.jpg1448574671_IMG_0230plank.thumb.jpg.6595b06d33b0c76d7d7e82b85beb5dde.jpg

 

I am now considering how this would transfer over to my Nieuport N28 aspirations.

Essentially I need the empennage, fuse and wingtips to be round. Add the extra wing...

May need to go large on the motor and prop. We will see. : - )

But the basic structure is sound, works and is strong. ( Ok the tail fell off due to bad glue bond...)

 

Salute!

 

Plank.y

 

 

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Afternoon!

 

Went back to the park with the monster and let it fly ( and it was good ).

 

Crashed again and the tail came off AGAIN, this time the foam ripped right off the golf shaft.

So I tapped it back on, with "strapping" tape. Awesome stuff.

and it flew again just fine.

After the little battery went flat after about 15min of lopping around etc I put

my new larger 3s battery in. Mmmm, maybe it will be ok?

Well the CoG is now nose heavy and the plane fell out of the air like a rock but

it was pretty good to fly like that and preferred it to tail heavy... mmm...

 

Kept doing figure eights across the wind with bank turns. Just awesome.

and heck, once it picks up speed it really goes fast. Like a rocket.

The trick is to get that prop spinning with a dive first. Then it's off.

Managed a few hovering landings into the wind landings. Hairy but walk away. : - )

 

Most of the time I was flying on maybe 70% and when banking ram it to 100%.

The thing can whip around ever so fast sometimes. Like crazy. wow. Hot!

 

My thoughts are now with a new thinner wing. Will it fly faster? less drag?

 

We will see.

 

Salute!

 

Planky.

 

Edited by Plank

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57 minutes ago, Plank said:

My thoughts are now with a new thinner wing. Will it fly faster? less drag?

What does your airfoil look like? I’m sure the thickness of the wing will have atleast a little to do with speed. From the looks of it though your wing already looks thin, so I’m not sure how you might progress from here. 

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Hello Angus!

 

33mm high

250mm long.

 

air_foil_plank.thumb.jpg.37ba4d53ba52a9562eee870272374635.jpg

 

I am guessing the weight and drag is not as good as it could be.

But it's not too shabby for a prototype experimental...

and it soaks up the punishment. Heck...

 

Salute!

 

Planky

Edited by Plank

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Hi Planky

 

4 hours ago, Plank said:

My thoughts are now with a new thinner wing. Will it fly faster? less drag?

 

No, it won't go faster, it will spin into the ground sooner. There is plenty of parasitic drag on your design that could be eliminated first.

 

You added a carbon fibre spar to your wing. If your whole model is 1 kg, at 10 G (that's a lot and you will not manage that with your aircraft) the wing had to carry only 10 Kg. If you saved for most of the weight of the glue you put in there (and put in a much shorter spar), you could have given the wing a decent covering with paper and nitrocellulose laquer, giving it a good finish. It would glide then considerably better. Same for the fuselage. All on the topic of speed. Placing servos inside the hull and the use of bowden cables helps there a lot. It also makes the installation much simpler and more robust. Less drag. You can also use torsion rods linking one servo in the center of the wing (also placed inside the hull!) to the ailerons (that can also be designed considerably smaller, you will not air-brake then that much while rolling). Then again, you are torquing, you might consider a larger tail.

 

It's less important today, because with enough power, anything flies:

snoopy.jpg

 

 

Also, the cleaner, the bench, the better the aircraft will look like. See, there's another guy, Franz Meier, he built most of his models on their kitchen table as well. That was in the pre-historic old days (wher you had to build your own transmitter etc. or by a Kraft, of course), where you didn't get divorced instantly by even considering doing so, but he did it. His Skyraider for example:

 

005.jpg

 

did win the European Championships for scale models. Not with Franz Meier on the controls, he couldn't fly that well and couldn't stomach putting his creations at risk himself, but it won. How he built those models is simply beyond me, but he did. But from pen to paper to plan to aircraft, it's his design. Just as an example of what is possible (too) on kitchen tables.

 

Finish matters.

 

 

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Is that Franz Meier in the picture with the delicate manicured hand on the control knob?  Must have been too many chemicals on his kitchen table... ;)   

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Gott you are fast Sir Unreasonable!

 

Zachy old chap. First it flies ok. Then it gets refined. Then it finally gets niced up. : - )

So far it's actually doing ok considering it's creator is knuckle dragging bicyclist with a penchant for pulling things to bits to see what is inside... ( and breath...)

 

YES! I agree.

There are soooooo many wrinkles, crinkles and bit's of crud sticking out.

NITROCELLULOSE PAINT !!!! Heck. anyone blown themselves up with that yet?

 

And I keep breaking my servos from fronting the plane into the planet at speed. Weee crunch. : - P

 

However... I did buy some supplies. Balsa, more glue, even more glue and more tape.

 

You would not believe the amount of punishment I have dealt out to this poor plane!!!

( And it still flies quite well! )

 

Yes SIR! Tidy up the plane SIR! At once SIR!

 

Salute!

 

Planky.

PS that Nut ball has Elevons and and a MAD RUDDER. : - )

 

oooh check this out.

 

Edited by Plank

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