Dodgy Crasher Show full post »
Dodgy Crasher
Hi XDm, yes setting up my transmitter or should I say experimenting with mixing is exactly what I had in mind, so your tip on not needing matching esc's for that is good to know and I will be on that this coming weekend .
I'm not planning to use those 2 turnigy motors in the Highlander anyway as they are for my 3d stunter but they are new and will do for testing.
I was more thinking 2 of the below motors for the Highlander, $4.31 each and should be light enough, 2 of them should be plenty power for that small model.
XXD A2212 1000KV brushless outrunner motor:
KV: 1000
Max. efficiency: 80%
Max. efficiency current: 4-10A (>75%)
Current capacity: 12A/60s
No Load current @ 10V: 0.5A
No. of cells: 2-3 Li-Poly
Motor size: 27.5 * 27mm / 1.1 * 1.1in
Shaft diameter: 3.17mm / 0.1in
Weight: 48g / 1.7oz
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solentlife
Agree with above ... don't worry about getting mixes correct.

In theory - two different ESC's should act same ... but its better for peace of mind to have same.

Ok - CURVE ... no its not Expo.

If you look at Helicopter mode - you will find a section in programming called CURVE ... it can be used to alter way the throttle acts ... how collective acts etc.

Example ... (please Heli guys this is just example) .... you could set a curve so that in first 5% of throttle you get 25% throttle ... with full throttle at say 40% and all way to max. This then means rotors are max throttle but collective pitch the acts to lift etc. Instead of having both going up in linear fashion ... not something you want. Makes for difficult  to fly heli's !!

On your plane motors ... you could set a curve for the rudder so that you have 0 one way and say 25% other ... only problem is for a curve - it would need motors turning same direction ... I think !! 
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Dodgy Crasher
Hi Solent,
Not sure I want both props on the same rotation, it means i'd have to offset the motors a lot, then pack more and more washers under the mounts until it flies straight without lots of rudder trim,
After looking at youtube clips it should be easy enough to programme a fair bit of mixing in my Spektrum DX9 to make this work, 
First of all I need to build that Highlander, but the weather is very poor here, cold and damp and not good to be outside spray glueing the plans onto depron, can't do it in my garage as I don't want glue getting on other stuff I have in there, just checked the next ten days weather forecast it's to rain most days with a 95% chance tomorrow, I guess that means it's raining, can't even get out flying it's no less than 11-12 mph during the ten days too.

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solentlife
I open up old cardboard boxes for spraying stuff in ... create a spraying booth in effect.

I also usually cut each part out of the overall plan to be able to stick them to scrap sheet ... get closer together etc. so I then don't have to think about a large area being sprayed etc.

Weathers bloody awful over here as well ... with no end in sight or forecast
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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solentlife
At present - I have a new own design cut out ... loosely based on similar to Polaris but with a low conventional tailplane. It will have a 50mm EDF each side of fuselage under the rear of wing .... with exhaust out just aft of the trailing edge.

950mm span ... 800mm loa ... 

DSCF8673.jpg  DSCF8674.jpg   
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Wildthing
solentlife wrote:
Agree with above ... don't worry about getting mixes correct.

In theory - two different ESC's should act same ... but its better for peace of mind to have same.

Ok - CURVE ... no its not Expo.

If you look at Helicopter mode - you will find a section in programming called CURVE ... it can be used to alter way the throttle acts ... how collective acts etc.

Example ... (please Heli guys this is just example) .... you could set a curve so that in first 5% of throttle you get 25% throttle ... with full throttle at say 40% and all way to max. This then means rotors are max throttle but collective pitch the acts to lift etc. Instead of having both going up in linear fashion ... not something you want. Makes for difficult  to fly heli's !!

On your plane motors ... you could set a curve for the rudder so that you have 0 one way and say 25% other ... only problem is for a curve - it would need motors turning same direction ... I think !! 

You should be able to run a negative weight on one and a positive on the other and they both still use the same curve. 
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Dodgy Crasher
Hi Wildthing, yes I have been messing with my DX9 and I have plenty of scope for adjustment regarding curve, expo, mixing, i was gonna use a Lemon with a gyro receiver on this build but now I'm not so sure, might just use a conventional spektrum as I think it allows for more mixing on the tx.
Hi Solent, it's very possible we are on the same land mass, me north and you right at the bottom, if you live down by the Solent estuary then I'm about 450 miles north of you in Central Scotland, smack bang in the middle between Glasgow and Edinburgh.
Interesting little plane your building there, not sure about EDF tho, I have one and it just eats battery power if I'm cranking up the speed, which I do, I did fancy that little powered glider with the overhead wing mounted edf, was it Graupner ??
I can't really remember as I don't look at boxed stuff much any more, over priced and sometimes doesn't fly that well either, my mate bought a big sea plane thing and it flew absolutely terrible, no trimming would make it right, the thrust line seemed all wrong, but he paid a fair bit for it and obviously didn't want to attack it with a craft knife when it was pretty new, as you can maybe guess it met an untimely death.
I bought a Slow Poke from Hobbyking, loved the look and it came motor, servos, esc , just needed 10 minutes building, a receiver and a 2200 3s lipo
I reckon in the 18 months I had it it sat still boxed for about a year and I finally put it together late last year and flew it, loved the look, it flew skimming the grass totally stable, in fact I used to land it put the front wheels down tail still up and just fly 100 plus metres along the grass at speed then up again all good fun.
I got maybe 20 flight out of it and I took it out about a month or 2 ago and decided to do some high flying , a few rolls etc, when i returned to level flight it was okay for a few seconds then just stopped, engine cut out, servos no work and it ploughed straight into the ground, not repairable smashed in so many ways, traced the problem a faulty esc, a 50a Aerostar which came prefitted in the model, btw that is not the first Aerostar to let me down but it was my last ! ! ! !
also one of my last models of that type, going to mostly build my own from now on, cheaper to build, and I can fit the electrics I want without major mods on a new model, and a lot less pain when you break them as its easy to rebuild and not destroy the finish like on shop bought stuff.
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solentlife
I used to live in UK Solent area - reason for my 'moniker Solentlife' .... hang over from my yachting there.

But since 1993 - I have lived in Baltics ... with most as now - in Ventspils Latvia.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Dodgy Crasher
Yeah I thought Solentlife would be something to do with the UK, there is Solent stuff in the U.S but from your use of awful bloody weather it was more an English description of sht weather ðŸ˜†ðŸ‘
Latvia is near the Baltic sea ??? , I'm imagining cold at this time of the year, probably similar to a Scottish winter, always windy always damp and cold.
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solentlife
Latvia is Baltics ... its actually along with Lithuania - the most west part of former Soviet Union you can get ... its across Baltic from Sweden.

Here's a plotting chart of yacht cruising I do here :

2009 SBC baltic.jpg 
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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solentlife
Weather now should be dry. cold and snow ... but we are wet, coldish, winds and no snow !
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Dodgy Crasher
building weather eh ??
I downloaded a set of plans for a mig23 and a spaceship. looks kinds like a starwars x wing kinda look, its supposed to fly well, will send you a copy of any I have , got dozens of plans, f22, f35 just to name another 2 , not sure how I would go about it on this site and obviously I dont want to make my email address public,  I'm very much all for one and one for all so free to a good home, unfortunatley the spaceship looks a complicated build for my meagre skills so I wouldnt mind somebody building it then giving me photos of assembly
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solentlife
I'm always up for a free plan !! I have loads on disc ... 

If you want to contact someone to sed something etc. - click on their little picture at side and choose .. 

As to plans - careful to ensure no conflict with the guys here who provide plans.
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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Dodgy Crasher
Okay so I have about 6 or 7 plans I have bought on this site, but that is not the ones I had in mind, I have a lot of others from other sites that I have paid or gave a donation to acquire, and others I got for free, it would be nice if they started a free plans category on this site and some of us can give to other members, it would probably attract new members too as everybody likes the word free.
Obviously the latest stuff on here and anything else which comes along should be quite rightly "pay the man" ðŸ‘
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solentlife
Like I say - I'm always up for a freebie !! 

One problem I have ... I'm no draftsman - so many of my designs - I actually freehand ... I don't sketch out as guys here do. I've tried SketchUp - 5 mins later - I'm back with paper and pencil.

On Wattflyer ... I did have assistance from one guy who took my ideas and then transposed to actual drafted plans .. my 'cartoon' scale Concorde (twin 50mm EDF's) and TU144 (twin prop) .... 
I have to admit that when cutting out - I didn't keep close to the drawings !  But here they are .. 

They both flew very well in fact (Concorde better than the TU144)

Concorde (still in good flight condition today years later)



TU144 (also still good today)



Interesting that TU144 has both props turning same way .. 
I'll fly anything if I can launch it ! Youtube : solentlifeuk
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