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Member postings for Paul Bromley

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

Thread: Saito FG40 Prop sizes
17/05/2020 07:52:46

Hi has anyone tried swinging large diameter props with the FG40, I note the manual says 21 - 10 as the largest prop but wondered if it will swing a much fine pitch but larger diameter ? any opinions. It is going in a 1./4 scale WW1 biplane.

Stay well


Thread: Forum members' new models: Let's see them.
10/05/2020 08:57:18

Hi Robert,

Turnigy 3536/6 30 amp esc x 4 Moto calc gives me a theoretical max 112 amps with an almost 1 to 1 power weight ratio so anticipate it shouldn't run anywhere near those amps.

10/05/2020 06:09:36

I haven't yet finally sorted the CG, however I have cnc an adjustable tray which gives me a range of battery positions and I have fitted the largest motors I can get in the cowls. From playing with the plan I have it is not too far off and I think a 75c 5000mah in the nose will be able to get it right !

09/05/2020 21:12:56

photo from paul bromley.jpgLockdown has spurred me on to finish my Sunderland from the Tony Nijhuis plan, just waiting for a chance to see if she flies !img-20200331-wa0016.jpg

Edited By Paul Bromley on 09/05/2020 21:14:24

Edited By Paul Bromley on 09/05/2020 21:21:40

Thread: Motor wires extending current requirements.
25/01/2020 06:31:38

Hi I have probably a silly question, I need to extend the three wires (windings) coming out of my motor a short distance to be able to position the esc. The motor is an align BL730 MX 42/30 960kv (550 heli).

The three winding wires are not huge off the motor , my question is what gauge silicon wire should I extend them with ? in other words does each wire have to be capable of carrying the supposed maximum current or is it split in some way ?



Thread: Multiplex Cockpit Sx 9
22/01/2020 12:29:13

I sent mine to Germany for updates with batteries no problems so should be no issues.


Thread: 20 years out of date !
21/01/2020 11:44:15

I have a 1290 for the tail, and yes stooge around is my bag LOL !

Thanks for the reply.


21/01/2020 11:33:01

Hi All,

I have bought myself a helicopter after being away from them for 20years, so somewhat out of date. The advice I am looking for is, I have a 550sx helicopter and wonder what spec cyclic servos to use ? I am long in the tooth, so now will be gentle sport flying none of this which way is it up stuff LOL !. I don't want to break the bank as I have lots of other stuff on the go, any recommendations appreciated ? !


Thread: BEC not in use
24/09/2019 09:10:32

Thanks All !


24/09/2019 07:59:14

Probably a silly question but here goes :

I am building a four engined aircraft with four esc with bec. I am not using the bec's but will be pairing throttles together via a y lead i.e. two outer and two inner motors. I propose to disconnect the positive wire at the Y lead (No BEC) but effectively joining the positives from each pair of esc together at the Y? I am wondering is this an issue ? I wanted to leave the positive wire intact on each throttle then I can disconnect the Y lead and use a programmer on each ESC should I need to!

I hope I have explained my question.



Thread: Making oracover Matt ?
21/09/2019 17:00:29

Great stuff thanks that's the look I am after !


21/09/2019 12:21:43

Its a balsa model fully sheeted wings and fuselage the Nijhuis one !

21/09/2019 09:53:59

Has anyone experience in making Oracover a matt finish ? I am building a Sunderland, trying to keep the weight down so thinking of doing the white bits in oracover putting some pencil detail on then matt varnish ! I intend to flat the oracover and spray matt varnish anyone done it ? I figure it will be lighter than glass and resin. It is electric so no fuel to worry about !

Advice appreciated.


Thread: Finishing closed cell foam ?
09/09/2019 09:45:32

Great stuff will give this a bash using some very light glass cloth thanks.


09/09/2019 07:12:20

I have made two floats for the Tony Nijhuis Sunderland from the interior of Kingspan ( pale yellow), stiffened with a central rib of balsa. How can I skin them to prepare them for spraying ?

Any tips appreciated I am trying to keep them light.



Thread: Multiplex Dual Receivers
14/08/2019 07:17:59

Todays project in the pouring rain ... thanks very much. Frank.


13/08/2019 20:27:47

Thanks Frank, I will give that a go, I think the difference is probably one spline, but if I move one arm its out the other way if you follow !

Best wishes


13/08/2019 19:59:35

Thanks Frank,

I am doing this, the problem is I have two elevator servos on separate channels where the movements on low rates need to be about 12 degrees and oh high rates about 60 degrees, so they have very large servo arms. The problem is the two down elevator movements don't quite match in the low rate, so I was hoping there was a way to adjust servo end points in both flight conditions to exactly match servo movements.

13/08/2019 17:26:17

Hopefully guys on here can answer another question ? sorry !

I have set up conditions, I only need two and used the dual rate switch to switch between conditions 1 and 2. I was then able to use different amounts of expo with mild and wild movements. However I find I need different servo end points as well, again my lack of understanding isn't letting me grasp this, can anyone tell me how this can be done ?

Many thanks.


Thread: Powerbox Gemini 2
21/07/2019 19:29:29

Its a large petrol extra with 35kg hv servos, which will be energetically thrown around by my son so 7.4v it is I'm afraid !

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