Shaunie
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Posts posted by Shaunie
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Edge 540:-
Fuselage, check.
Two wings, check.
Wing joiner, check.
Transmitter, check.
Flight box, check.
Glow stick, check.
Retaining bolts, check.
At the field:-
Build plane, no worries.
Fuel plane, no worries.
Check radio, no worries.
Fit canopy, where's the canopy?
Oh d*mn, fly the J!ve then!
Shaunie.
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Treat yourself, you know you are worth it!
Like that handbag of hers that just mysteriously "appeared", "Oh that, I've had it for ages"!
Shaunie.
Edited By Shaunie on 05/10/2016 09:05:38
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Posted by Peter Miller on 05/10/2016 08:33:52:Posted by Tom Sharp 2 on 05/10/2016 00:22:09:
You can halve your problem by immediately by fitting only one aileron.
I am puzzled by your answer Tom
I had a control horn break on my Oodalally and the model was almost uncontrolable because the drag ofthe down going aileron turned it away from the turn direction so applying right aileron made the model bank right but turn left.
Common practice in pylon racing circles I believe Peter. Slippery wing sections and small deflections probably help with adverse yaw problems.
I've just built an Equaliser E2K (from Gavin Barden at Evolution Models). Which will also fly incredibly slowly but With no rudder suffers from adverse yaw at very low speeds, luckily it has two ailerons so I've added some aileron differential.Conventional centreline hinges though so I can't help there.
Shaunie.
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Just one little thing I'd like to add and this is for crimping in general, not just servo leads:-
If the wire's cross sectional area is too small for the crimp do not be tempted to double the stripped portion back over the insulation and then crimp that in the connection portion. This is bad practice for several reasons;
1. The contact area is reduced (obvious really).
2. If the wire warms up or as time passes the plastic will migrate and what little pressure you had holding the connection together will cease.
3. And this is the most important, as you crimp the wire the plastic extrudes out of the ends of the crimp which stretches the copper inside it until it breaks. You have what looks like an acceptable crimp except if the wire is not broken immediately it will fail in service shortly after with obvious consequences.
It is perfectly acceptable however to double the copper over in the crimp, that's fine.
I was involved in a fairly lengthy failure analysis program many years ago, where I found that one wireman building looms was doing this and it gave us no end of problems, particularly working out what machines his production had gone into!
If you wish to be picky try not to touch the stripped copper before crimping as oils from your skin can upset crimp joints too. The MIL spec method of twisting the copper without touching it is to partially strip an overlong wire, twist by the insulation and then cut to length afterwards.
Shaunie.
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It all depends on which direction you need to master and slave of course! If the OPs Tx is to be slave to his tutors Tx and aircraft then the original set up would not have worked.
The one problem I have always had is if the student has his own aircraft and Tx you cannot buddy a tutors Tx to it. The student needs to get used to the feel of his Tx so his aircraft needs to bound to the tutors Tx with the student Tx cabled to it. A sort of "reverse buddy system" would be useful.
Shaunie.
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Do not add acid unless it has been spilled. When a battery dries out only water leaves the cell, replenish with DI water only.
Lead acids are a topic all on their own. Visit battery university for loads of useful info. Basically, do not run them too flat or for too long, when recovering them keep the current low until fully charged or at least until they have trickled for some time and check the voltage, 14V for regular types, 14.5 for Calcium. The longer they are flat the more permanent the damage.
Shaunie.
Edited By Shaunie on 20/09/2016 23:31:35
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When funds allow I might buy a second one, so I can have two different temperatures, one for tacking, the other for shrinking.
Just used Oracover for the first time, my word that can take some heat! Had a wingtip that wouldn't behave, ended up at about 190 degC, it went where I wanted it in the end! Apparently it'll take 200 degC.
Shaunie.
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I forgot to say, I love mine. If you keep fiddling with the controls you are not allowing it to do its job, you are fighting it and it is fighting you. (bit like her indoors when you are trying to drive
.Shaunie.
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The instructions are on the box on mine.
Switch it on with the on/off button.
Set the temperature using the up and down buttons.
Wait for the temperature to settle. It's a PID controller and has a little overshoot. It will go slightly too high and then come back down to the set temperature. When you change the temperature it will overshoot less than when warming from cold. The problem is that with a display you can see what is happening and worry about it. With an analogue thermostat the problem is worse, you just don't know about it.
Its a fact of life that it's possible to machine something to size tolerances of microns fairly easily, to control its temperature to within a couple of degrees is quite hard. Take it from me, I used to work with injection moulding tools that had eight control zones to control a mould tool about 600mm by 300mm.
Shaunie.
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Hi FB3,
Evolution Models Fusion. Gavin Barden who designed and sells them and I are in the same club, so it was rude not to build one.
It's bare white on top as I haven't printed the graphics up for the top yet.
Covering with checks is fun but came out spot on I think.
Overlander 3548 motor, corona CS238MG servos. They go well on 3S, climb like homesick angels on 4S.
Shaunie.
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Really hard to post photos from iPhone!
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Nearly ready, just a little fettling to do .
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Posted by WolstonFlyer on 16/09/2016 15:05:59:
On the other side of the coin I was talking to a local estate agents yesterday who where thinking of getting a 'drone' to take commercial photographs of houses and land ect "because all of their competitors are doing it".
He had no idea about any regulations / insurance / caa or anything. They were quite prepared to go online and buy a DJI Phantom 4 and fly it over peoples houses!
And herein lies the crux of the problem. While we fight a rearguard action to preserve our credibility these idiots are still undermining us in complete ignorance of the law. They genuinely haven't even stopped to consider that there may be any relevant law because "Everone else is doing it".
Shaunie.
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Bit short of time but briefly, what if we classified not by aircraft type but by the purpose of the flight.
1. Where the purpose of the flight is primarily for the pleasure and skill of flying the craft itself.
2. Where the purpose of the flight is primarily to capture imagery i.e. placing the camera at a height above the ground.
The Genie is out of the box as far as multirotors are concerned, it cannot be put back, ignored or thrown to the dragons.
Unfortunately legislation like this is often created by someone who has little knowledge (apart from some brief research) about the practice they wish to regulate. They listen sagely to all the representations from the interested parties, say "thank you for that" and then go and do something completely inappropriate in an attempt to "improve" on what they have been told.
Commercial aircraft operators are running scared and want to nip drone flying in the bud as hard as they can. They also have a lot of clout and can keep banging the safety drum with many people hearing it. The fact that in many cases so called drone events are being wildly overemphasized does not help. The legislation we have is already fit for purpose in my eyes, it just needs enforcing effectively, regardless of aircraft type, dangerous flying is dangerous flying. It's just that at the moment it's more likely to be a drone flown in an inappropriate place.
Another problem is the massive infrastructure that is the lawmakers who need to justify their own existence, they are a law factory if you like. They would not be doing themselves any favours if they were to say "we have all the laws we need" would they?
Shaunie.
Edited By Shaunie on 13/09/2016 11:19:15
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The energy conversion efficiency of Nimhs is much lower than Lithium chemistries. For instance a 2000 mAh Nimh charging cycle would be 200 mA for 14-16 hours which calculates out to 2800-3200 mAh. With Lithium chemistries you get back out almost all the energy you put in, not sure how much you lose, I've not done any tests but it would be fairly easy to set up. I suspect much of this is down to the internal resistance.
Shaunie.
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In my simple view of the world aren't almost all aircraft with anhedral high-wingers? Without anhedral then the centre of lift would tend to be much higher than the C of G in a vertical plane to my mind. As a result of this there would be a considerable amount of pendulum stability. Does this interact with the wing sweep to promote the Dutch roll BEB? Anhedral therefore brings the centre of lift lower down so not only is the roll stability reduced but the pendulum stability is reduced also. Or am I barking up the wrong tree?
Shaunie
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There are so many opinions about ammo boxes for this application it will make your head spin. When a Lipo goes up it liberates a vast amount of gas and without adequate ventilation I am sure there is a significant explosion risk. My box has a double skinned lid with a channel along the centre. I drilled a hole through the inner skin at one end and the outer skin at the other. The intention is to create a long thin flame trap, hopefully the gas can escape but not the flames. If it ever goes up I'll be sure to report back whether it works or not. I only drilled 5mm holes and my concern is whether they are big enough.
Shaunie.
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Hi Dave^2,
Welcome to the forum and the words of wisdom so freely given here 😂.
The sad thing is it's all absolutely true. I hope you do join a club and have a successful flying career. When you can fly you will realise the realities about park flying and what is safe and achievable. It's not the park flying with a small foamie, it's park flying with a small foamie by a person who cannot fly that is the problem.
I learnt to fly out of a club environment and had no success until a friend who was a competent pilot taught me. In a club would have been easier even allowing for the fact that I had free access to suitable fields.
I still fly from a private field at work but the banter at a club is almost as much fun as flying to me (I say almost!).
Shaunie.
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After placing the order I received no dispatch information so after a few days I emailed them. They replied that the ESC I ordered is no longer in production and they would refund. No refund so far, so I emailed them last night to refund or I will raise a Paypal dispute.
Shaunie.
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Hmmm,
I have two that are two or three years old and still performing ok. However I bought four last year, two for myself and two for a friend and we have one each that has gone high internal resistance.
Might be a trend here.Shaunie.
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Hi Daren,
I've been meaning to build one of these for years!
Unfortunately one of our club members is Gavin Barden of Evolution models. Once I've finished building his entire back catogue I promise I'll buy one of yours 😜.
Shaunie.
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So you bought it out of a catalogue, you say?
Shaunie.
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How about something like this:-
Search for rubber grommet strip.
Shaunie.
Edit as link came unstuck!
Edited By Shaunie on 18/08/2016 12:12:31
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I ordered a 60Amp Hobbywing ESC last night, £17.90 including postage. I'll let you know how I get on!
Shaunie.
And you think you have a hard walk to work?
in Chit-chat
Posted
Danny macaskill is truly gifted. Please take a look at his other videos on YouTube.
**LINK**
Imaginate, way back home and inspired bicycles are my favourites
Shaunie.