Here is a list of all the postings Shaun Walsh has made in our forums. Click on a thread name to jump to the thread.
|Thread: Banggood Polaris Lander|
Quite possibly Bob, but I like to ensure everything is tied together LOL!
Think I will try the CF rod method first, if that isn't satisfactory I will go the twin servo route.
More frustration, dry assembled the wings and the wing joining rods are 4mm diameter and fit into the wings fine, however, the holes in the fuselage are 8mm diameter which means that there is no contact/support offered to the fuselage by the joining rods, relies solely upon the glue join between wing and fuselage.
Now need to look for some suitably sized tubing to fit in the fuselage holes. VERY ANNOYING!
Two thoughts on how to resolve the aileron problem.
1) Fit twin servos in the wings. Which would mean cutting holes in the wings, running the servo leads through to the fuselage and fitting covers.
2) Use carbon fibre rod instead of wire pushrods. I have tried some 1.5mm CF rod in place of the 1.5mm wire pushrods and they slide freely, probably because they are more flexible and can cope with the sharp bend. If I go this route I shall epoxy the clevises to the end and slide some CF tube over the rod between the fuselage and the aileron to stiffen it.
Any other suggestions?
Started to put this together and more frustration, The rudder dropped off but then I would rather it fell off now than in flight, easily fixed with a few cyano hinges. I ran the servos on the servo tester, the rudder was fine but the aileron servo really struggled to the point where the servo was moving not the control rods. Took out the servo and found that the pushrod angle was so acute that the rods were really stiff in the tubes to the point where I couldn't get one of the rods back in. Will need to think about the best way to resolve the problem.
|Thread: Spektrum AR 620 RXs|
I bought one not long after they came out, it's on the side of a Hobbyking Hummer, exposed to spray from the wheels It's often wet when I land, never missed a beat.
|Thread: How do you cut yours?|
I don't like cutting out the fiddly bits either so I either build from a full kit or a short kit. There are some places that will laser cut parts for you if your chosen model is only available as a plan.
|Thread: Banggood Polaris Lander|
Perhaps it's an attempt to justify £80 for delivery
Thanks for the replies, a couple of further bits of information.
I will check the KV value using a tachometer when I get around to building the model.
When I bought the model it was free postage, wouldn't pay the £80 they are now asking.
Will check thrust available and current draw with 2 and 3 blade props although eCalc results show that a 1300KV motor with a 3 blade 8x6 prop gives the best results on a 3S battery.
If it is a 1000KV motor and it doesn't produce enough thrust I will just swap it out for a higher KV motor.
I think the product weight includes all the packaging, the model certainly isn't 6Kg!
I have a Hobbyking Skipper which is great for flying when the field is wet and puddled but wanted something a bit bigger and easier to see so I ordered a PNP Polaris Lander from Banggood, basically a Skipper XL which Hobbyking has now discontinued
The web site says it has a 1300KV motor, requires a 3S battery and shows it with a 3 blade prop.
I received the model on the date stated with no duty charges that I know of so far, great. However, the little bit of information that came with it says that the motor is 1000KV which would require a 4S battery, there are no markings on the motor indicating the KV value. It was also supplied with a 2 blade prop. Have raised a ticket with Banggood. Don't want to return it so I hope its a 1300KV motor or, failing that, that Banggood can send a replacement with the advertised 1300KV rating.
|Thread: Haven't any people on YouTube heard of grease?|
Grease is the word, John Travolta and Olivia Newton John would both agree with you.
|Thread: Spekky repair?|
Al's hobbies, guy who repairs Spektrum stuff works there on Mondays and Tuesdays. Sent my DX6 off for a replacement gimbal as one pot had failed, sent on Thursday, arrived Friday, fixed Monday, back Tuesday, reasonable cost.
|Thread: Sign of the times - funnies|
I really enjoyed this, just one thing I would take issue with, point 2. There was a recent article in New Scientist on a piece of research which discovered that the use of filler words such as like, um, err etc. actually enhanced comprehension in one to one conversation but diminished perceived authority when used in speeches, presentations etc. I must admit that it surprised me as I get very frustrated with the overuse of filler words. I suppose that by definition just under 50% of the population are of below average intelligence and so need the gap to process what's been said before. I'm sure that, as aeromodellers, we are all like in the um upper 50%.
Five toilet rolllllls!
Eight packs of pasta
Seven Nightingale hospitals
I need a team effort here, I would like to produce a Covid related 12 Days of Christmas, to start us off, here are the first four days:
On the first day of Christmas my true love gave to me, a Barnard's Castle eye test for free.
On the second day of Christmas my true love gave to me, two vaccines waiting and a Barnard's Castle eye test for free.
On the third day of Christmas my true love gave to me, three tiers of lockdown, two vaccines waiting and a Barnard's Castle eye test for free.
On the fourth day of lockdown my true love gave to me, four national policies, three tiers of lockdown, two vaccines waiting and a Barnard's Castle eye test for free.
Please feel free to complete the remaining eight days.
|Thread: Prandtl Wing FVT-3|
I liked the look of the edf wing next to their logo, apparently they will be revisiting it in the new year, too busy to make it available at the moment. Also, will probably order an exodus as I have the recommended motor and esc going spare, any excuse 😊
|Thread: Loaded Dice 30 EP|
Ok, an update.
Wings almost complete, a few points of difference from the plan. I have added some TE section to the ailerons as I wasn’t happy that the top and bottom sheet join would be robust enough without it. I have also added TE section to the third rib bay for the same reason and to strengthen the root joint. The instructions seem to show the 4 inch LE sheeting extending beyond the main spar at the wingtip but the illustrations in the magazine article shows it cut off at the spar, I decided to follow the illustration and not the plan, the bonus is that the cut off section fills the gap in the sheeting at the root 😊. There are no details regarding the servo fitting so I constructed a box between the ribs with square section balsa to accept the servo holders (from Banggood).
I will not add the top LE sheeting until the wing halves are joined and I will probably add a centre rib to support the sheeting aft of the spar. Regarding the method of joining the wing halves, it appears to rely on a 3/8ths medium hard balsa sheet in the space between the first ribs and the upper and lower spars, a support for the front wing locating dowel and the leading edge joiner. Nothing extends beyond the first rib on each side which makes me a bit nervous, normally used to a ply dihedral brace extending to the second or third rib. I will probably add a ply brace to the trailing edge and reinforce the centre brace by laminating it with some thin ply.
|Thread: Sign of the times - funnies|
I think this highlights the difference between accuracy and precision.
The ruler is precision made, so if you compare lots of different examples of this ruler they will give you the same measured figure, however they may not be accurate So you could measure a piece of wood that is actually 15.0cms long with several different examples of the same ruler and get exactly the same measurement but that measurement may be 14.8cm, so it's precise, but not accurate.
Edited By Shaun Walsh on 16/11/2020 13:05:38
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