A nice sized Bristol Beaufighter

Klipkopwildlife
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I'm supposed to be retired!

20 Jun 2026 14:26 #136 by Klipkopwildlife

Replied by Klipkopwildlife on topic A nice sized Bristol Beaufighter

And if you do the same thing without the prop?

Do it now, you may never get another chance

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Quorneng
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20 Jun 2026 15:11 - 20 Jun 2026 15:14 #137 by Quorneng

Replied by Quorneng on topic A nice sized Bristol Beaufighter

BB
It certainly appears that a 5050 Kv515 motor and 16x8 prop should be well within the capability of the 120A ESC and further using a 3s would reduce the amps still further.
The fact it cuts out very quickly at 1/2 throttle and the beep beep suggests that at that point the ESC is no longer getting a valid signal from the radio.
This could be the result of the ESC being incorrectly programmed so it does not understand the signal above half throttle from the radio.
Or
How big is the 3s battery? Even with 3s that motor is going to try to draw quite a few amps. It could be that the battery voltage is dropping to a point even at at half throttle that the ESC simply cuts out. If the ESC is expecting 5 or 6s supply then 12V is pretty low.
Many high voltage ESCs specifically state a minimum cell count.
If it still cuts outs with no prop it would certainly indicate an ESC programming issue rather than anything amp/heat related.
That's about all I can think of.

Last edit: 20 Jun 2026 15:14 by Quorneng.

Thanks: Klipkopwildlife

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THE BLACKBIRD
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20 Jun 2026 15:59 #138 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

The lipo is a 3s 3300
Its of no matter now as i put the other ESC on the rig connected it up and it got hot with nothing running, now neither one works at all, no beeps or flashing leds
I would say i need 2 new ESCs
expensive to say the least, cant beet a cheep DLE petrol

Thanks: Klipkopwildlife

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Eric
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20 Jun 2026 16:51 - 20 Jun 2026 16:56 #139 by Eric

Replied by Eric on topic A nice sized Bristol Beaufighter

16 x 8 is a big prop for a 3S battery!
If the ESC got hot with nothing running, that's an electrical fault somewhere, such as a short-circuit.
How many volts is the motor designed for? (or how many cells).
Electricity is funny stuff, if you reduce the volts to a device (the motor) it pulls MORE amps to do the same work. So as the battery volts fade, the motor uses more power. (That's one reason why electric cars overheat the battery and catch fire!)

I see no mention of the current drawn by the motor, so assume you didn't have a Wattmeter in line. As I put before, you cannot see how much power is being drawn - you have to have a meter in there! There is no engine sound, or exhaust smoke, to say if the motor/speed controller is happy or not.
I use a 10 x 6 on 3S - or a 14 x 6 for a short burst for take-off, then about half power for the flight. I get about five minutes, then the pack is down to about 3.5 volts on the lowest cell, and starting to get warm = landing time.

if you are calm and collected when all about you are going berserk - you've missed something important!

Last edit: 20 Jun 2026 16:56 by Eric. Reason: added a comment

Thanks: Klipkopwildlife, THE BLACKBIRD

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THE BLACKBIRD
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20 Jun 2026 18:46 - 20 Jun 2026 18:53 #140 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

Having had a negative few days i thought i would glass the tail feathers

On looking at this plastic model i have of it i see the tail plane is wrong

it comes out of the fuselage horizontal and then go's up in the dihedral

i should have gone with my first choice Ziroli DB5
new esc is 60 quid
where are the numbers coming from 1 2 3
I have a w meter on order along with a 4s 5000 lipo

Last edit: 20 Jun 2026 18:53 by THE BLACKBIRD.

Thanks: Klipkopwildlife, Quorneng

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Eric
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21 Jun 2026 07:06 - 21 Jun 2026 07:34 #141 by Eric

Replied by Eric on topic A nice sized Bristol Beaufighter

Found a WW2 vid of the Beaufighter -
I've not watched it all the way through, but it looks like some had flat tailplanes, and some had Vee's Also some appeared to have in-line engines, and some radials! (but those might have been random Mosquito photos,as 109's and 190's appear later!) Nice clip of Gibraltar partway through!

if you are calm and collected when all about you are going berserk - you've missed something important!

Last edit: 21 Jun 2026 07:34 by Eric. Reason: added a comment

Thanks: Klipkopwildlife

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THE BLACKBIRD
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21 Jun 2026 10:13 #142 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

The early ones had flat tailplanes but had handling problems so they were then given the dihedral to sort it out
I mean it exits the fuselage flat for a short distance to clear the fuselage and then rises, this plan has the 2 halves joined with dihedral braces from the centre

Thanks: Eric, Klipkopwildlife

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THE BLACKBIRD
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21 Jun 2026 19:06 #143 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

I covered the elevators in orotex to try to copy the cloth covering on the real ones, its not as good as the solartex used to be but ill see how it turns out

Also did a bit of wiring

And carried on with the glassing of the tail plane

Thanks: Eric, Klipkopwildlife, Quorneng

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THE BLACKBIRD
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22 Jun 2026 19:30 - 22 Jun 2026 19:32 #144 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

Im losing it, i ordered some poly resin to cover to foam wingtips with glass, i had some epoxy resin but that eats the foam so last night i did one side of the wingtips with the poly resin and today

Its the poly that eats the foam

i got it the wrong way round

Anyway i cut it off and glued some more on
Been cleaning the edges of the flaps and ailerons where i glassed them ready for the second side to be done

Or a second coat of resin over the glassed side
Been in hospital today having treatment to my shoulder some form of injections he did warn me when i went to the chronic pain clinic that it would hurt, took half an hour to do the injections after a 4 hour wait, had to be there at 8 this morning and got seen at 12

and i had 2 nurses holding my hand whispering sweet nothings in my hearing aid and boy did it hurt, it might help
Got to go to the heat clinic Wednesday

Last edit: 22 Jun 2026 19:32 by THE BLACKBIRD.

Thanks: Eric, Klipkopwildlife, Flytilbroke, Quorneng, Ralpharr2001

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THE BLACKBIRD
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23 Jun 2026 11:28 - 23 Jun 2026 11:31 #145 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

Just for Eric my new wat meter in the background and new 4s lipo showing over 15v on my new checker

Also on the same order was 8 2m pushrods and they each came wrapped in their own packet, the wrapping cost more than the rod

What a waste

Last edit: 23 Jun 2026 11:31 by THE BLACKBIRD.

Thanks: Eric, Klipkopwildlife, Flytilbroke

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THE BLACKBIRD
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23 Jun 2026 13:09 - 23 Jun 2026 13:11 #146 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

Well that went badly, set the rig up with the W meter in line

And i got these readings
.17 AH
14.12V
47.55WH
676.6WP
And it pulled 4Kg
So then i put the other ESC on and go snap crackle and pop with white magic smoke from the ESC as soon as i made the connection
So that ESC is kaput never worked before when i tried them but i never got the display i just got it just did nothing, and its blown the new 30 quid W meter

I F$&%*£ hate electric

Last edit: 23 Jun 2026 13:11 by THE BLACKBIRD.

Thanks: Klipkopwildlife, Flytilbroke, Quorneng

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Eric
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23 Jun 2026 17:20 #147 by Eric

Replied by Eric on topic A nice sized Bristol Beaufighter

I don't know how you managed to burn out a Wattmeter. Mine is rated to 150 amps.
I'm not sure what that reading of 676.6 WP is. The other numbers look ok. My meter is so old I've lost the instructions!
I notice that you have used 'bullet' connectors for the battery and ESC (and the wattmeter) Are you sure you didn't plug one of them in backwards when you fried it? It s very easy to do.

if you are calm and collected when all about you are going berserk - you've missed something important!

Thanks: Klipkopwildlife

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THE BLACKBIRD
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23 Jun 2026 18:26 - 23 Jun 2026 18:39 #148 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

My meter is/was 180a, no i plugged them in correctly, i just got the smoke from the esc nothing at all with the meter, just when i put the other esc on and tried it nothing, i hooked it up without the meter and it all worked, but the meter was difficult to read the screen as the numbers did not stand out

Last edit: 23 Jun 2026 18:39 by THE BLACKBIRD.

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Quorneng
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23 Jun 2026 19:03 #149 by Quorneng

Replied by Quorneng on topic A nice sized Bristol Beaufighter

It sounds like the faulty ESC failed on full short circuit which would of course also blow the Wattmeter as a big LiPo could easily pass 200+ Amps.
It is also possible that the Watt meter has overcurrent fuse protection. It would only need replacing and all would still be well.

I afraid what happened is a bit of bad luck as most ESCs fail to open circuit so apart from not working nothing else gets damaged when connected up to a LiPo.

Thanks: Eric, Klipkopwildlife, THE BLACKBIRD

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THE BLACKBIRD
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24 Jun 2026 01:00 #150 by THE BLACKBIRD

Replied by THE BLACKBIRD on topic A nice sized Bristol Beaufighter

Shit luck Tony strikes again then, im sending the esc back to Leeds model shop qnd iv messaged China about the esc
At least the weather has got a bit warmer, quite nice today

Thanks: Eric, Klipkopwildlife, Quorneng

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