Don Fry
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Posts posted by Don Fry
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Toto, life is a measure of planning time, and reward, and of course creative thinking. Life has too few hours, it a fact, as an Irishman would wisely say, “Can’t cure, endure”
Now winter in the UK is when you pull your weight, earn and store brownie points. Creative thinking, the laminated knife blocks I made her. Crowning glory, her new VW Transporter hippy Europe explorer, boat hauler. Also has removable quarter scale fully rigged biplane racks.
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On 03/03/2024 at 14:28, Shaun Walsh said:
Why is it that you always get a puncture in the tyre with the most tread remaining and not the one that's almost bald?
Whom the Gods wish to destroy they first send mad.
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Well, England Ireland was tense.
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What has the above got to do with hobby king?
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On 02/03/2024 at 13:27, toto said:
Yep .....
It's back to watching utube videos of maidens ..... and drooling.
Toto
I too watch maidens, and drool, blessed with living 40 m from a boat slip on a clean river.
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2 hours ago, steve too said:
Written on the back of a fag packet. Vapour to deceive.
As for the police. A stretched organisation gets to lose 20% of its manpower, social services offloads a load of Mental Health act stuff onto them cos social services can no longer cope. Then the police bosses go mad. That murdering copper in the met had a nickname, “the pervert”. Now I might just spot that as what is technically known as “a clue”. And they spend time doing vacuous hate crime. Also note Zflyer’s comments.
oh, and not a political statement, this government has a fair track record of gaps between promise and delivery. Rant over.
oh, just remembered, back in the 90s, I worked for a year or so for a home office organisation, National Strategy for Police Information Services. Home office and strategy is a little like relying on a blind man leading troops towards the enemy. Just look a the codswallop of drone licensing. Ranted out. -
I’ve got a pot of that, very good glue, and I’ve used it for hinges . Rubbery glue=tough.
But, being a bloke wot has been round the block, you know the answer, 5 minutes to make a test piece, dry it for a day, and break it.Then YOU know, one less fail point.
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On 28/02/2024 at 19:09, Stuart t said:
Many thanks for your speedy reply's , certainly makes it easier , it just looks a little fat !
Arrrr, you get to carry eight times more weigh in the material. Ie your basic wing weight has grown by eight times. That’s eight times the power needed.
Airfoils don’t scale, but for practical purposes for small changes like this, they still work. For the structures you are looking at, twice the span, twice the chord, 4 times area, 4 times the power needed, 4 times the weight.
So spar size old, changes to new is 1.4, square root of two
So the new dimensions are the old dimensions times multiplied by 1.4, wot provides an airframe weight IRO 4 times original.
All to get something with the same(ish) wing loading.
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I’ve used
17 hours ago, Geoff S said:That's what I do. If you want a Z bend then use 2mm s/s rod at one end, but I don't think it's as secure epoxied in the rod as threaded (no evidence - just a feeling). I favour a ball joint at the servo end - they don't come unscrewed and have almost zero play. At the control surface, I use s/s clevis with a locknut - it's where you can adjust it most easily.
I use this system (cheap quick, good). I abrade the inside of the tube, so it is grease free. Use a longer set epoxy, mixed very carefully, fill the rod hole with epoxy, (a pin to push apply)and fill the masked threads (same pin).
I did a test once. Built a test piece . Nothing fancy for units used in the test piece. When cured, hung a 50 kilo lump, no fails, no fails when I tried push pull shock loading. Got bored.
Word of warning. Destroy the test piece. I saw it much later, a half finished rudder control arm. COO goes I. Finished it, installed it, and the penny dropped, why a half finished rudder rod. Chastened, made a new one.-
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20 hours ago, SIMON CRAGG said:
Plus various tablets, phones. ipad things, computers etc.
Most kids seem to be hooked up to the mains, gazing at their iphone things, oblivious to the outside world.......and traffic.
My Grandson was always keen to "come up the club field", until he was 10 years old. Suddenly discovered computers / pizza / coke / warm bedroom etc.
End of visits to the patch.
Arrrrrrrr, but you have planted a set of memories. Normal for adolescents to change. Do you not remember the time when young ladies became alluring to you, and aftershave rather than eau de diesel, became the smell of choice. But still a memory is still there. And they might one day remember.
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Copper sheathing is also nice, can buy on internet. Slide it over the workpieces, pull it longer, so it thins in diameter over the workpieces, and solder on. Neat.
Another is take a bit of brass tube, slit it lengthways, and open the slit to nearly the diameter one of the wires, so it can be pushed onto the wires you want to join, using the brass as a spring/clamp to pull all together. Then solder. Trick is to pick the right diamerter of tube so it clamps well.
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I can braise wire and retemper, father taught me. Ditto silver solder.
Sub 7 kg stuff, wot I fly, 60/40 lead/tin, resin solder, scrupulous clean, helped along by resin flux. I think my iron is 150 watts. No fails yet.
Note well Martin’s comment, the solder acts like a glue, not a structural component. -
As a guess, they are pinched in and glued, then it would look right. The pinching tool need be no more than a piece of nylon strapping say a 5 mm cable the, or similar.
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Noddy, you are assembling a trainer, tool for a job. Now I appreciate pride of workmanship, but you don’t polish a hammer. Tape is quick. It’s reliable. It does not fail, think how you would feel, it’s your only plane, a magnet pulls out.
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No, it’s concentrating on the next you do.
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On 15/02/2024 at 07:42, Christopher Wolfe said:
Being aged 9 - 13 it actually took them about three weeks to fly solo and I was quite proud when my 9 year old daughter gave a 13 year old lad a lesson in how to fly a model - Next flight he did not crash and break the model due to pride (or loss of it) because all his mates were watching 🙃
I used to coach kids at target shooting, Duke of Edinburgh medals, et al. Standard opperating proceedure for all non strength based skill sport.
Tell then how to do it. The girls listen. The boys are off with the fairies.
Girls start to win. Patience, no shouting. Girls listen, boys think this is too difficult.Pep talk. Language moderated.
To the boys, Are you going to let those young ladies trample all over you gentlemen?To the ladies. You are ahead ladies, mind you stay there.
Then they all get learning.
Some friends spent a holiday with us in France some years ago. They had 2 kids, 8 and 10 years old, girl and boy respectively. As I had two prisoners for two weeks, I taught them to fly on a HK Tundra.
Prize, land my Flair Fokker DVII. They were fascinated by it.
The young lady, bit of a natural mind, took eleven days.-
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I think, think mind, it’s more a pupil trani on a mode and make not used/understood by the instuctors. And they suggest a trani they can grab, or bind to.
ie, if you can’t fly it, or program it, how can you teach on it. Hope I’m wrong.
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Build a wooden crate, with custom foam and strapping, strong enough to walk on, and drop off a van, and quote to buyer fair actual costs to do the packaging, inc reasonable labour costs.
There after if accepted, if you can build the model, the box isn’t a problem.
The recipient at least doesn’t get hanger rash thereafter. But I bet it costs more than the glider. -
I’ve been (nearly) caught out that way. I started making a written record of every switch use for every model, but it fell by the way side.
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1 minute ago, Don Fry said:
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12 hours ago, Martin Harris - Moderator said:
I never realised that Mr. Newton got it all wrong and that I'm capable of destroying energy. If only I could work out how to create it!
Not Newton I think, but Kelvin. Didn’t think “entropy tends to increase in any system” had the same ring to it.
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All engines turn all their energy into heat. Efficiency equals wot bit of it is useful to the destroyer of energy, ie the driver. Big, heavy, grunty, fast, SUV s are very poor at energy efficiency. Small, light, boring, slow, gets further down the road.
Mind, when I smoked boring equalled you could roll a fag.
Electric Cars.
in Chit-chat
Posted
Mind Paul, I moved to France in 2006. Since then, I’ve had doing 12000 km a year, far more punctures per year than I ever had in the Uk, where I probably averaged 60,000 km. Mostly screws. Tradesmen being careless.