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Member postings for Ben B

Here is a list of all the postings Ben B has made in our forums. Click on a thread name to jump to the thread.

Thread: The Gov't, CAA, BMFA & UAV legislation thread
26/11/2019 22:15:46

How do the distance regulations (distance to property) etc relate to sub 250g models? Eg if I fly my inductrix (all 30 grams of it) round my garden am I in breach of ANO or has that actually always been the case and this registration scheme just means I can't claim ignorance. Having passed the bmfa tests I feel I should know the answer but don't! Presumably I should also have someone next to me if I'm flying fpv!

Thread: Solar powered shed
23/11/2019 18:23:12

My solution for a similar quandry was to install a 100+Ah leisure battery. A cheap inverter for tools, 12v LED lighting and job's a good'un. Heating is tricky but in winter I tend not to use the shed as much. I insulated it in polystyrene and then lined it with ply and painted it so it's pretty bright in there and only really gets too cold when it's freezing outside. When I want to charge the battery I just run a temporary cable down to the garden. Unfortunately it appears the local mice population have discovered the joys of insulation- last time I went in there the whole place stank and had mice poo smeared all over my stuff.....

Thread: The Gov't, CAA, BMFA & UAV legislation thread
19/11/2019 13:20:41

Do we have clarity yet on the 250g limit yet- is that with fuel? What about batteries? With an electric vehicle is that without batteries? I suspect not.....

Do we think it's likely the rules will be enforced with any enthusiasm (if at all)? I'm wary as on our local council run flying site the Park Constabulary have historically gone beyond enthusiastically enforcing the byelaws and made up quite a few of their own!!!!

e.g. the BMFA test confirms I can't fly behind a tree. What about a sapling. Tall blade of grass? Low flying pigeon?

I'm wary because one of the flying sites I go to has rugby posts. Now theoretically someone 10cm wide could be playing hide and seek at the top of the rugby post and in the 0.01 seconds I fly behind the post on the final turn I could massively miscalculate and hit them. Admittidly a somewhat niche situation but an officious Park Constable could nonetheless act on "the law".

Hopefully some common sense will be enforced. Big fines though for a slightly muddy plane weighting 253 grams!!

18/11/2019 17:15:23

Well that's my test completed. It wasn't exactly hard!

Thread: speed 400 x 3!
29/10/2019 12:08:56

I think in this day and age using nicads and brushed motors is the equivalent of hair shirts and self-flaggelation. It's possible but the question has to be why. When I returned to r/c about 15 years ago I had a flying wing with a speed 400 and for a while flew it on nicads (even then it was massively out of date technology). It was slow, flights were short and the motors burnt out there brushes and by all accounts it's best to "run them in" with no load in water (it all starts getting a bit painful).

I swapped to brushless inrunners and lipos after about 3 months and that sorted that out.

If a kit I was building came with inrunners, nicads, brushed ESC etc and I wanted to keep it completely stock I'd keep them but in a situation with no ESC (and ? no battery) I wouldn't even think going brushed. A 2000(ish) kV inrunner in a 28mm can will normally fit a speed400 installation without modification.

Thread: LIPO Battery Duration Query
28/10/2019 22:05:53

Go for the bigger capacity 3s. If you go 4s you'll produce more peak power but your esc and motor might find it too much unless you prop down. Unless you're looking for more power just up the capacity. You could work out the total kwH of the two packs and theoretically there's an advantage in terms of less pack sag to using a higher cell count but on a reduced throttle curve to maintain the old wattage pulled but it feels like overkill for a simple plane.

Thread: Hands free mobile calls
24/08/2019 14:44:33

The simple answer would be to increase the fines so they cover the associated policing. Ditto speeding. We regularly gets cars going twice the speed limit down our road yet the police say they only thing they can do is an annual "education" day were they stop the cars and advise them against speeding.

I don't understand why. Just fine them and use the proceeds of that day to pay for the next!

Most days in an hours drive I'll see at least one (and often two) people driving on the phone. I even saw someone driving a moped whilst texting!

I also fail to understand why all traffic lights can't be fitted with red-light cameras. Having almost been killed by a National Express bus that blew through a traffic light about 10 seconds after it went red it's a bit of a sensitive topic for me.....

Thread: Glue for PLA and PET-G
21/08/2019 10:44:35

I really wouldn't worry yet about how to glue things together. By the time you work out how to use a 3d printer, get it all dialled in etc you'll know

3d printing isn't complicated but you do need to learn how to use the machine, how to calibrate it etc. It takes a while. Admittidly PLA is much easier to with than some of the other materials but it still takes a while in my experience.

Thread: Finding Models
03/08/2019 16:16:00

Richard- that doesn't sound right at all. I suspect the unit is caput. Even if the heatshrink was covering the outlet of the speaker it should be fairly noisy...

Thread: New FPV microcam/FPV cam 31 gms, water resistant
03/08/2019 14:14:43

It looks quite good. Equally- is that an affiliate link? If so you should probably divulge this for the sake of transparency.

Thread: Can you charge a LiPo through its balance lead?
01/08/2019 16:11:19

Charging via a balance lead is fine. I have a couple of lipos charging this way as we speak. Only issue with charging in situ is if the cell puffs (can't get it out) or bursts into flames....

Thread: Electric Cars.
31/07/2019 11:09:29

That's the logical solution. I drive a big people carrier (Diesel). Most of the time it's just me driving so it's a complete waste most of the time but pays off for weekends away, trips to the dig store etc.

I'm currently looking at 100% electric cars and a medium car with a toe hook would work well. A caravan attached with a big generator in it could do the rest when needed. I can see quite a market for rentable trailers full of batteries for those occasions also.

31/07/2019 11:09:26

That's the logical solution. I drive a big people carrier (Diesel). Most of the time it's just me driving so it's a complete waste most of the time but pays off for weekends away, trips to the dig store etc.

I'm currently looking at 100% electric cars and a medium car with a toe hook would work well. A caravan attached with a big generator in it could do the rest when needed. I can see quite a market for rentable trailers full of batteries for those occasions also.

Thread: Finding Models
30/07/2019 21:31:49

This is one of the advantages of flying fpv. You can remove the omni RX antenna to just leave a patch and use SSRI to direct you. If your quad has GPS it's even easier because you can see coordinates in the osd.

Thread: Connecting to flight controller boards
30/07/2019 21:26:58

Zadig is quite old. The Impulserc fixer works better in my experience. Usually you just need a better lead- about 75 per cent will not work,. I find genuine Samsung micro USB cables cost effective. The spf3 should be able to handle bf4.0 though personally I am not convinced yet about 4.0. I've had a few quads with scorching hot motors so tend to use 3.6 mostly instead.

Thread: Slowing down (a sports-aero) on landings - flaperons or spoilerons?
06/06/2019 15:53:27

Agree on the importance of rudder on finals. Less likely to tip-stall / spin (banking and yanking at low speed sounds like a recipe for disaster).

Just thinking of mention of the thread of electric planes- presumably with an electric set-up the only implication of the power of the set-up is that a more powerful set-up is likely to be heavier (bigger battery, bigger motor). There's no "tick-over" as such, no idle speed to adjust, prop is almost irrelevant- the ESC could even be set on brake to add to the drag (though the risk is always broken props on nose-over).

I do share concerns with the chop+glide / don't go around again type philosophy. It's less of an issue nowadays but I know friends used to avoid going round again due to a concern that after prolonged idling during the glide phase the I.C. engine would splutter / die when opened up. I also think people keep the speed too high during the glide and too much of the flare is used to kill the excessive speed. Then again I also see too many harrier-style landings with planes coming nose-high almost on the point of stalling- and then people wonder why they end up spinning out when a gust of wind hits....

One of my best ever landings was when the elevator fell off my plane! Only had the rudder and throttle to play with and it was a greaser- and about as slow a landing as I'd ever managed.

IE my vote is for a fairly horizontal landing with a moderate amount of power applied.

06/06/2019 09:13:16

Spoilerons kill speed nicely but increase the stall speed so you have to fly slightly faster. They're good on a glider though. You also have to be careful not to use the aerolons that much when spoilerons are active because you can induce a tip stall.

Flaps work well. You just have to bear in mind that if you abort a landing you might need to increase the speed before lifting up the flaps otherwise you might find you're actually below the stall speed of the unflapped wing.

However you do them it's worth using servo slow function to slowly introduce them.

I played around with spoilerons and flaperons a lot on my SpeedAir when I first got it- I was always coming in too hot. After a while I just learned to get it slowed down on the landing circuit so that I didn't need flaps or spoilerons.

Thread: Interesting reply from email to Richard Moriarty, CAA
31/05/2019 09:26:40

I think the main thing we should push for is an agreement to fix the price. IE they should show confidence in their scheme / calculations and fix it for ten years (other than inflation). My concern isn't the cost now, it's in three years when lots have given up flying due to the cost / hassle of registration and the original figures have been shown to be bonkers at which point the charge will be much more. I fly five or six times a year only due to family / work commitments. There is a price it just wouldn't be worth it- at which point I either don't fly or just take a chance. It'll probably be the former.

Thread: CAA registration consulation
29/04/2019 19:24:47

I really worry what this will do to the hobby. My impression is that it is a hobby that lots of people temporarily move away from but come back intermitently. I know I fall into that group- flew at university then stopped for a while then rediscovered my stuff and had a fly and flew for a few years, then stopped for a while, restarted. Having to re-register might well be enough of a barrier and stop people re-starting flying. I also worry it will be a barrier to many to learning to fly.

The silly thing is will have zero impact on those intent on misusing the hobby / technology as they obviously just won't register or will use a hacked registration.

I fear it's just a way of making money out of a minority hobby on a false premise....

Thread: Why can't I buy from Banggood?
19/04/2019 22:40:36

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