Hi Jon
hope all goes well tomorrow. Get well soon and then you can sort out the model.
dave

I understood all your best wishes , Thank you

Regards Jon.

Hello you two,
I wish you a speedy recovery and recreation!
keep your ears stiff, dear craft brothers
a speedy recovery from switzerland, your Michel-Claude
Ps my english is not perfect but i hope you understand my meaning
😊😊😊👍👍👍

Sorry to hear that Colin, mine is lower back with trapped nerves which gives server pain down my left leg, hopefully they can remove a small amount to release the nerves. Cheers.

Jon, sorry to hear you have spinal problem's, I to am having to have weekly physiotherapy sessions as they say an op could leave me paralysed. Mine affects the use of my hands and arms.
Best of luck shipmate, cheers Colin. 🤞

I will try all these tests but I have got to go into hospital tomorrow to have my spine sorted hopefully but will try at a later date.

Cheers.

It's a test Colin. If as you say it has unwanted effects that do not give the required results it can be restored in seconds. SLA's may give a good runtime but they are not the best for delivering high currents for any length of time. Of course if there is improvement then the motors could also be removed, allowing the props to free rotate and reducing the overall weight and any drag effect.
Dave

Only problem with disconnected motors is that the prop will add considerable drag thus slowing boat and overworking the other 2 motors.
Cheers Colin.

Hi Jon
Only one way to find out, try them. They should give a reasonable run time but the overall weight will not help with fast speed. If you are happy with the performance all OK. Another quick test would be to disconnect an outer motor on each side and see what the effect this has. This will reduce the current draw and may not affect the overall performance greatly. Just disconnect one lead to each motor and insulate so should only take a few seconds.
Cheers
Dave

12v 7ah should give a good runtime,
Cheers Colin.

Hi dave, I measured the props and they are 30mm, due you think the 12volt 7ah sla batteries I managed to borough will be OK. Cheers Jon

I will measure them tomorrow and see what size they are if they are over 30mm I will get some smaller ones. I have borrowed a pair of 12v 7ah SLA batteries do you think they would be more appropriate for this set.

Cheers Jon.

Hi Jon
Nice props but I suspect they are too big for your motors and that is the problem. Multi prop models do not need large diameter props. I would expect to see four 30mm or less props on this model.
dave

Hi All,

I’m still on my day job, but I’ll get this fixed asap.

Pictures are not lost anyway. So don’t worry there. It’ll all come back.

Just ask for all your patience’s 😁

Thanks,
Stephen

Hi Shipmates,
There is a way to circumvent this problem for the impatient and curious😉
It is literally a 'work around' 🤔
Works in Windows, other Op Systems I don't know - look for equivalent commands.

First you have to LOGOUT. Yes really, trick won't work if you are logged in.
Then RIGHT CLICK on the pic (empty box) that you are curious about.
Select (Left click) OPEN IMAGE IN A NEW TAB (in Windows), other Op Systems, phones etc, may have other but similar commands.
You will then get the security message I posted below.
Left click ADVANCED. The window is extended with further info.

Scroll down and Left click ACCEPT RISK AND CONTINUE.
The picture will then open and if you go to any other page all pictures and Avatars etc will be visible. Incidentally, often MUCH larger than when you open them normally when logged in. Depends on the size (resolution) of the original pic.
Happy clicking / phone stabbing all 😉
Cheers, Doug 😎

Hi John
It would appear the website is not showing pics at present so we will have to wait until Stephens has resolved the issue
Dave

Hi Dave,
Pics are not viewable for anyone at the moment!
Reason: Site's security certificate has expired - needs renewing.
A periodic necessity I'm afraid🤔
Doug
This is what you get if you try to open a pic in a new tab.

"Warning: Potential Security Risk Ahead

Firefox detected an issue and did not continue to hobby.land. The web site is either misconfigured or your computer clock is set to the wrong time.

It’s likely the web site’s certificate is expired, which prevents Firefox from connecting securely. If you visit this site, attackers could try to steal information like your passwords, emails, or credit card details.

What can you do about it?

The issue is most likely with the web site, and there is nothing you can do to resolve it. You can notify the web site’s administrator about the problem.

Learn more…

Web sites prove their identity via certificates, which are valid for a set time period. The certificate for hobby.land expired on 13/09/2022.

Error code: SECERROREXPIRED_CERTIFICATE

View Certificate ..."

You are then given two options-
Go back (Recommended) or Accept the risk and continue.
If you accept the risk then ALL pictures, Avatars etc are then visible.

Sorry Dave i will take some more and post those.
Cheers Jon

Pics are not viewable to me.
dave

Hi Dave I have sent the pictures I have on my phone but I can take some later when I get home if they are no good.

Cheers Jon

Hi Jon can you post a pic of the props?
dave

Ideal set up is out runner brushless motors with Lipo batteries

OK Colin I will keep those in mind.

Cheers Jon

Hi Dave, Thanks for the info, I have managed to borrow two 12 volt lead acid sealed batteries from a club member so I will try them. The thre bladed props are definitely smaller than motors.
Cheers Jon.

Hi Jon, had similar problems with some of my larger models. I switched to 12v 7ah sla's. But have recently purchased 12v 7ah LifePo batteries which are about half the weight and last longer.
Cheers Colin.

Hi Jon
Sounds like the props are overloading the motors. Ideally the prop diameter should be no greater than the diameter of the motor. I like to use scale brass 3 bladed props in my scale models and avoid two bladed racing props. One 7.2 v NiMh has no chance. I could not find any specs on line but I suspect each motor could draw about 5 or 6 amps under load so 12 amps per pair. You could use two 12v 12Ahr Sla's if the model has enough room and draught but I would not expect lots of performance or on water time. If you really want fast performance and endurance LiPos would give the best results but that may be above your comfort level. Two 12v NiMhs of 5Ahr would possibly give good performance and at less weight so speed and endurance may be greater. The higher voltage will reduce the current draw but do consider selecting suitable props as they will have a marked effect on current draw and performance.
dave976

Hi, It sounds like you have the same model Fairmile D that I have it is definitely the same length and scale 1/24th. I think i will have to run her on two 12 volt batteries. I will keep it mind and mention at the local club meeting.

Thanks Jon

⛵Hi ,Firstly what scale is your Fairmile .I have 24th scale Fairmile D which it is approximately 56" which is for 4 shafts i would love to have completed and run it but was made redundant so now only have a small car and cant transport it to our pond in Aberdeen.i did run it on 2motors to 4 shafts with belt drive 12v gel batteries and got a long run time with 1 12v 7amp that was just the bare hull .so i know it can work that way .i took all the motors and shafts/rudders out to use in a smaller boat but have yet to find a smaller version .i am actually wanting to sell this Fairmile i have plans and hardware if you know anyone that would be interested i check the website daily .cheers