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Member postings for Shaun Walsh

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
25/11/2020 17:03:36
Posted by Bob Cotsford on 25/11/2020 15:53:31:

Shaun, I think the idea of the wing joiner is that it is only meant to maintain the dihedral and is free floating through the fuselage with the wing roots locking into the fuselage socket to tie things together. I don't think there needs to be a close fitting sleeve through there.

My Skipper XL came with something like a 1000kv motor which I swapped for a 1400kv Turnigy one to use on 3S.

Quite possibly Bob, but I like to ensure everything is tied together LOL!

25/11/2020 15:37:06
Posted by Toni Reynaud on 25/11/2020 14:45:46:

Using a hot wire to cut holes to mount the servos in the wing is fairly easy (if you have cut foam before and have the gear to hand). To run the wires, just cut a slot from servo to fus entry point using a sharp blade and a straight-edge and push the wires in edge on.

Think I will try the CF rod method first, if that isn't satisfactory I will go the twin servo route.

25/11/2020 15:36:16

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!


25/11/2020 11:14:16

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?

25/11/2020 10:30:06

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
24/11/2020 17:54:27

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?
24/11/2020 13:40:16

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
24/11/2020 10:20:34
Posted by Piers Bowlan on 24/11/2020 09:59:52:

Sounds like you are on the case Shaun. yes Good luck.

But a 1kg model with 5kg of packaging!!! I don't think so. smile d

Edited By Piers Bowlan on 24/11/2020 10:04:06

Perhaps it's an attempt to justify £80 for deliverywink 2

24/11/2020 09:47:43

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!

24/11/2020 07:42:38

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

.Polaris Lander PNP

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?
23/11/2020 19:34:40

Grease is the word, John Travolta and Olivia Newton John would both agree with you.

Thread: Spekky repair?
21/11/2020 12:25:03

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
19/11/2020 18:44:57
Posted by Gary Manuel on 19/11/2020 18:31:44:


1. The letter 'U' will be reinstated in words such as 'colour,' 'favour,' 'labour' and 'neighbour.' Likewise, you will learn to spell 'doughnut' without skipping half the letters, and the suffix '-ize' will be replaced by the suffix '-ise.' Generally, you will be expected to raise your vocabulary to acceptable levels. (look up 'vocabulary'.
2. Using the same twenty-seven words interspersed with filler noises such as 'like' and 'you know' is an unacceptable and inefficient form of communication. There is no such thing as U.S. English. We will let Microsoft know on your behalf. The Microsoft spell-checker will be adjusted to take into account the reinstated letter 'u' and the elimination of '-ize.'
3. July 4th will no longer be celebrated as a holiday.
4. You will learn to resolve personal issues without using guns, lawyers or therapists. The fact that you need so many lawyers and therapists shows that you're not quite ready to be independent. Guns should only be used for shooting grouse. If you can't sort things out without suing someone or speaking to a therapist, then you're not ready to shoot grouse.
5. Therefore, you will no longer be allowed to own or carry anything more dangerous than a vegetable peeler. Although a permit will be required if you wish to carry a vegetable peeler in public.
6. All intersections will be replaced with roundabouts, and you will start driving on the left side with immediate effect. At the same time, you will go metric with immediate effect and without the benefit of conversion tables. Both roundabouts and metrication will help you understand the British sense of humour.
7. The former USA will adopt UK prices on petrol (which you have been calling gasoline) of roughly $10/US gallon. Get used to it.
8. You will learn to make real chips. Those things you call French fries are not real chips, and those things you insist on calling potato chips are properly called crisps. Real chips are thick cut, fried in animal fat, and dressed not with catsup but with vinegar.
9. The cold, tasteless stuff you insist on calling beer is not actually beer at all. Henceforth, only proper British Bitter will be referred to as beer, and European brews of known and accepted provenance will be referred to as Lager. South African beer is also acceptable, as they are pound for pound the greatest sporting nation on earth and it can only be due to the beer. They are also part of the British Commonwealth - see what it did for them. American brands will be referred to as Near-Frozen Gnat's Urine, so that all can be sold without risk of further confusion.
10. Hollywood will be required occasionally to cast English actors as good guys. Hollywood will also be required to cast English actors to play English characters. Watching Andie MacDowell attempt English dialect in Four Weddings and a Funeral was an experience akin to having one's ears removed with a cheese grater.
11. You will cease playing American football. There is only one kind of proper football; you call it soccer. Those of you brave enough will, in time, be allowed to play rugby (which has some similarities to American football, but does not involve stopping for a rest every twenty seconds or wearing full Kevlar body armour like a bunch of nancies).
12. Further, you will stop playing baseball. It is not reasonable to host an event called the World Series for a game which is not played outside of America. Since only 2.1% of you are aware there is a world beyond your borders, your error is understandable. You will learn cricket, and we will let you face the South Africans first to take the sting out of their deliveries.
13. You must tell us who killed JFK. It's been driving us mad.
14. An internal revenue agent (i.e. tax collector) from Her Majesty's Government will be with you shortly to ensure the acquisition of all monies due (backdated to 1776).
15. Daily Tea Time begins promptly at 4 p.m. with proper cups, with saucers, and never mugs, with high quality biscuits (cookies) and cakes; plus strawberries (with cream) when in season.

God Save the Queen!

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%.

18/11/2020 19:14:16

Five toilet rolllllls!

18/11/2020 19:13:38

Eight packs of pasta

18/11/2020 19:11:56

Seven Nightingale hospitals

18/11/2020 18:51:33

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
18/11/2020 17:40:26

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
17/11/2020 17:15:55

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
16/11/2020 13:04:40
Posted by EvilC57 on 16/11/2020 12:09:07:

I treated myself to a new 6 inch steel rule last week, and noticed the label on the back of the protective cover it came in. The thing is, which do I believe? Is it precision made, or are all figures approximate?



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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