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>> Home > Tags > esc

Spektrum, new, useless... by stormin Sub-Lieutenant   Posted: 6 hours ago
Hi Martin, glad Doug sorted your spektrum, the problem is we do live in a different world now, back in the 70s 80s and 90s a model rc aircraft was something small boys and even big boys would be in wonder of because you had to spend a lot of time effort,money,and patience to have one. However that is not the case now, I can go to Tesco just now and for very little money (£35ish) walk out of the door with a small 4 channel 2.4GHz rc plane and go attempt to fly it in my local park. Now there lies the problem model rc aircraft are no longer things old men like us would spend months making then going to our club fields to fly. Let's go one step further, let's go to any good model shop and buy, ready to fly, what is described on the box as a "Park flyer" now this Park flyer is capable of over 100mph coming out of a reversal manoeuvre in straight and level flight. Now we on here would never fly this model in a public place, but a lot of people will and do. I used to be an active member of SMAE way back but am no longer because I'm lucky enough to have access to a totally private field. Norman.

Aerokits MTB, what is it?... by onetenor Fleet Admiral!   Posted: 18 hours ago
I think you would have to wade through the histories Doug but I think it comes down to the very varied arms carried. or just the crossover of Motor Patrol Boat and Patrol Torpedo boat and Motor Torpedo Boat. Maybe Motor Patrol Torpedo Boat too as reading through some of the history I think they weren't sure themselves which term(s) to use. The Wiki description is an easier and informative one to read.👍😊

Spektrum, new, useless... by RNinMunich Fleet Admiral!   Posted: 19 hours ago
Most sensible folks these days have personal 3rd Party insurance, not just the obligatory car insurance! Like all insurance; if you ain't got it you will one day need it, if you've got it nowt will happen. Sod's Law 😲 Just look for one that covers operating RC models, or at least doesn't exclude it! Some insurers (here at least) offer it as an 'add on' for a peanuts annual premium. That's what I did here in Germany, 3rd party All Risks. Costs about €60 per annum but is not just for models. Would also cover me if I accidentally caused a disaster in a supermarket or whatever. Don't need any model club or association membership. Cheers, Doug 😎 The rise in premiums probably comes from the escalating costs of reparation, legal fees and exorbitant awards made to the 'injured party'. An unfortunate trend spilling over from the US. E.g. hundreds of thousands for folks who dry their poodles in a microwave just because the manufacturers instructions didn't explicitly say not to do that! According to new ATC laws here any flying model weighing 5kg or more has to have a fireproof plate fitted with full name and address. Above 20kg you need ATC approval.

Spektrum, new, useless... by Westquay Fleet Admiral!   Posted: 1 day ago
Doug, that is a mystery as to why your Spektrum isn't both DS** As you say, UK was (still is officially) EU. Nice little bipe there. Looks like it should have an 049 and single channel RC with a "bang-bang" escapement in it. I've seen people do astonishing aeros with such a set-up. I'm not brave enough to try it. But I do fancy a flying wing soarer. No motor, no chance of fly away, no need for expensive insurance. Cheers, Martin

LED Tug Mast Navigation Lights by RNinMunich Fleet Admiral!   Posted: 2 days ago
Hi Pete, since you are in the US try here, the OTHER RS😉:- Personally I prefer stranded wire as it is more flexible and less prone to break if you often have to remove and remake connections, like when you take the cabin off! It's slightly thicker so it's more a question of 'Will it fit?' Some model shops have (or used to!) a really thin stranded wire, as used for tiny 'rice grain' bulbs'. 2nd question: I assume your tug has an 800mAh NiMh battery like mine did. Correct me if I'm wrong, I don't know the new models. I propose to change mine for a 2200mAh NiMh. Can't use LiPo cos the Brushed ESC isn't LiPo safe; i.e. with built in cut off if the battery falls to 3.0V per cell - lowest safe LiPo discharge voltage. 3rd Question - changing motors; I've often wondered that!😲 Up to now I don't see any reason to. Maybe those guys want to enter Towing Competitions!? I don't. Also some folks are just not happy unless they are tinkering and 'improving' 😉 I might try to quieten the gearbox down a bit though 🤔 Teflon grease perhaps!? Cheers, Doug 😎

Spektrum, new, useless... by RNinMunich Fleet Admiral!   Posted: 3 days ago
Hi John, Yep, I know Component Shop, and the Action Electronics modules inside out👍 Have bought ESC mixers and Asdic pingers from them. Good stuff, and some of it dead easy to duplicate! 😲😁

Spektrum, new, useless... by Haverlock Fleet Admiral!   Posted: 3 days ago
awwwwwwwwwww I liked the escape of magic smoke more than a " it worked" outcome!! Seriously bloody good job.

Fun Run by RNinMunich Fleet Admiral!   Posted: 3 days ago
A magnificent collection! Well done gents 👍👍👍 Specially like the Victorian Launch 😊 Poor little girl, adrift on a runaway launch wiv no crew!!!! 😲 Hope one of the Springers could rescue her. Congrats all round, Cheers, Doug 😎

BRUSHLESS ESC by RHBaker Fleet Admiral!   Posted: 4 days ago
Thanks Doug. Agree with your suggestions. Have already implemented the multiple fuse idea. Hope to try it soon Rowen

BRUSHLESS ESC by RNinMunich Fleet Admiral!   Posted: 4 days ago
Hi Rowen, that's what often gets overlooked and why the Main fuse is so essential! Good luck with the set up👍 With multiple screws put a fuse in each ESC supply then if one screw blocks and the fuse blows everything else should still work so you can get back to port 😊 That's also a reason for NOT using the BEC on multiple screw boats; applying Sod's Law the one that blocks will be the ESC supplying the RX via the BEC then ..... U R Stuck!! 😡 A separate RX battery or UBEC off the main drive battery is safer 😉 Doug 😎

BRUSHLESS ESC by RHBaker Fleet Admiral!   Posted: 4 days ago
Thanks for the advise. Think if my latest set burns out, will increase ratings substantially. The point about stall current is relevant, suspect that is why one of my last ones burnt out.

BRUSHLESS ESC by RNinMunich Fleet Admiral!   Posted: 4 days ago
Also check the STALL current of your motor! If the prop gets blocked the current drawn from a LiPo can rise so much it melts the motor and ESC if it can't withstand very high current. Worst case - you have a boatfire instead of a Fireboat! 😡 Better still; fit a fuse of much lower rating than the stall current so that that blows and not the motor 😉 On normal running the ESC should have a continuous current rating of at least 50% more than the max running current of the motor. As advised above, check this with a 'Wattmeter'👍 Attached an extract from the instructions of a typical unit as I have. Only costs a few quid but can save hundreds 😉 Happy sailing, cheers, Doug

BRUSHLESS ESC by CB90 Captain   Posted: 4 days ago
From my experience I would suggest 2-3x your motor current rating especially cheap ones from china, I have found that a brushless motor can rapidly draw high currents with fouling of the propeller by weed etc. I would check the current drawn with the propeller you intend to use with a watt meter in the test tank (bath) held stationary increase power and monitor the current drawn this must be well within the limits of your ESC this should show a 10-15% higher power consumption than when moving. The best bit of advice (which I often don't follow myself) is to put a fuse in line Please note some ESCs are not waterproof (avoid) or seal them with silicon sealant, go for a quality manufacturer and the highest current rating your can afford. Cheap 30A ESCs can be ok for low power motors under 10Amps my racing boat pull 60 Amps and is fused at 80Amps and has a 200Amp ESC

BRUSHLESS ESC by canabus Fleet Admiral!   Posted: 4 days ago
Hi RHBaker If the ESC exceeds the motor draw that's all is required. I only use two sizes in my boats, a 45A for small boats and 100A for the larger boats. The both use the same program card !!! These are the Hobbyking car ESCs because they have an on/off switch, small and have an electrical fan on top. Very good for low speed running and no water plumbing required. Canabus

BRUSHLESS ESC by RHBaker Fleet Admiral!   Posted: 5 days ago
Has anybody heard of, or have, a "rule of thumb" for the sizing of brushless ESCs? Am new to brushless motor powertrains and have been using ESCs that nominally exceed the current draw capacity of the motor. Have heard that they should substantially exceed the motor capacity and wonder, if that is the case, by what percentage?