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    Response
    Re: 40'' Seaplane Tender, on the water at last
    Re - Good piece of water you have there JB - what is it dam or river Hi Peter, it's actually a drainage pond for the golf course and surrounding housing area, and belongs the the Gulf Harbour development co. The Gulf Harbour R/C yacht club sails there and are the ones who built the jetty. I was happy with the model and it ran as I hoped it would, luckily. Battery life running as it was in the vid, would have been around 45/50mins being safe, (not going below 3.3v/cell, - battery alarm is set for 3.6/ cell and had not gone off )
    Batteries
    are 2011 and 2012 so they are getting on a bit, ( the 2011 is getting a bit puffy but still balances ok) I might replace them with 2800s but probably not necessary, as just chugging around I'd probably get an hour or more. Motors only draw about 2,1A max ea static, (under way less than that.) and seem just right for the boat. Had actually thought of something ducted fan powered, as I have around 8 various spares I built to experiment with in the Vampires (incl 4 in a ducted fan experimental quad I built, if necessary). see pic. Next model might be the 20ft Hartley cabin boat I built a few years ago, but that might be next year, as I have a lot of other things which need doing. I'm re-doing the Graupner Optimist at the moment between jobs. Thought about a ducted fan airboat (still have a hull I made 15yrs ago!) JB
    8 days ago by jbkiwi
    Response
    Re: Supplies Arriving!
    Batteries
    are scheduled for a Thursday delivery! Why is time going so slow?
    20 days ago by figtree7nts
    Blog
    Supplies Arriving!
    I had to order various supplies. For the Smit Nederland build! I just received the Metric Drills I ordered. See I have a set of American standard drills. But, I didn't have Metric. Now I have Metric drills. Which are used on the build of the Smit Nederland! Monday I should be receiving the
    Batteries
    . I ordered for my F-14 Controller!
    23 days ago by figtree7nts
    Forum
    Fast attack craft
    Re - It is good to have all this information on the different
    Batteries
    , Hi Martin, I think what we are trying to say is that all battery types are good as long as you maintain them properly and they are suitable for the job they are doing.
    Batteries
    are getting better and safer every day and the choices increasing as well so it can be confusing for beginners in the R/C hobbies. Unfortunately you do need to be aware of the technical stuff re -use and charging, as all battery packs can be dangerous (ie, try shorting a big NiCad or NiMh pack and see if the smoke doesn't leak out and melt your fingers!) They can cause fires too but people seem stuck on the LiPo 'dangers' and forget about those 'safe'
    Batteries
    . The good thing is that people can google anything these days and can usually check for instructions or possible problems before buying any product, model or otherwise. JB
    26 days ago by jbkiwi
    Forum
    Martin Westquay's Piper Cub ;-)
    Hi Martin, To take the pressure of your '
    Batteries
    in a DX5e' thread ... ๐Ÿ˜‰ Attached are a couple of pics of what you are getting for your dosh. A 550 size Thrustmaster motor, 8x4 prop and fittings are included. All you'll need to add is just water ๐Ÿ˜‚ .. er make that covering fabric / foil and the electricals. A drop or two of glue might come in handy as well! Had to stay in today waiting for DHL to deliver my dichloromethane, it's arrived at last ๐Ÿ’ฅ๐Ÿ˜ฎ so I'll hopefully get the package off to DHL tomorrow. Cheers, Doug ๐Ÿ˜Ž
    3 months ago by RNinMunich
    Forum
    Video chat / Roving Reporter - ''Does the site have a Youtube Channel?''
    Hi Folks, As a spin off following on from the hijacked ๐Ÿ˜Œ
    Batteries
    for DX5e thread from Martin W! If anyone has any further thoughts for a possible Video Chat link up and/or Roving Reporting from Club Events etc please feel free ("If you want to go any further it'll cost you"๐Ÿ˜‰ as the actress said to the bishop๐Ÿ˜) to add them here. Thanks. Cheers, Doug ๐Ÿ˜Ž
    3 months ago by RNinMunich
    Forum
    Turnigy A-6-10 200W Balance charger & discharger
    Help needed please, Iโ€™m not an electrics man I purchased this charger and two battery packs about 6 months ago and Itโ€™s been in the box ever since. And I am now getting round to sorting the electrics on my crash tender. however reading the forum article on โ€œ
    Batteries
    in a DX5eโ€ I am now concerned that the
    Batteries
    are in trouble. I Have the manual but to honest I canโ€™t make any sense of the particular situation I have eg I have checked the output voltage on each battery not under any load and they both read 9.5v. What do I do next โ€“ discharge - charge โ€“ for how long etc Thanksโšก
    3 months ago by mturpin013
    Wiki
    Battery Capacities & Wiring
    DRAFT: TO BE REVISED ;-) (FB)
    Batteries
    can give you many different outputs (!?) depending on how they are wired up. As long as you don't have to worry about weight you could try endless methods of wiring different types of
    Batteries
    to get a desired output. Wiring
    Batteries
    in Series Wiring
    Batteries
    in series is a great way to increase voltage, as you can see on the diagram below the voltage is added up in each cell which then equals its output. The mA/h does not change when
    Batteries
    are wired up in series. The only problem with
    Batteries
    wired up like this is that they are prone to faults, were you end up with a 'dead cell', this means that when you are charging/discharging the pack there might be one cell that doesn't hold its charge as much as others bringing the overall capacity of the battery down. Wiring
    Batteries
    in Parallel (DON'T DO IT!!) When
    Batteries
    are in parallel the mA/h will increase (not the voltage). Remember:- the mA/h does not mean the current going through speed controllers etc. it is only a guide to the maximum current a battery can except where it will last for one hour. Theory About The Whole mA/h Thing! Just think of the
    Batteries
    being a tank of liquid, when the liquid runs out the battery runs out. Below are four diagrams:- The height of the liquid in the tank increases the pressure/voltage at the bottom. The area of the liquid increases the overall capacity of the tank/battery. The number of amps the motor can draw is not limited to mA/h of the battery, the mA/h is only a guidance figure to tell us how many hours it will take before the battery/tank runs out. If you really wanted you could let out 10 Amps worth of liquid, just that the battery wont last very long unless it has a larger capacity. In Car Terms The diagrams below explain the differences between the size of the tanks and the distance that can be traveled. 5 Gallon Tank = 1000mA/h Battery 10 Gallon Tank = 2000mA/h Battery If you have a car with a small fuel tank it might do say 100 miles at 50MPH. if the same car had a larger tank it may do 200 miles at 50MPH. The size of the tank does not effect the speed the car does, but it will effect the distance it can travel. Golden Rule DO NOT MIX
    Batteries
    OF DIFFERENT TYPES!
    7 months ago by Fireboat
    Wiki
    Battery Capacities & Wiring
    DRAFT: TO BE REVISED ;-) (RN)
    Batteries
    can give you many different outputs (!?) depending on how they are wired up. As long as you don't have to worry about weight you could try endless methods of wiring different types of
    Batteries
    to get a desired output. Wiring
    Batteries
    in Series Wiring
    Batteries
    in series is a great way to increase voltage, as you can see on the diagram below the voltage is added up in each cell which then equals its output. The mA/h does not change when
    Batteries
    are wired up in series. The only problem with
    Batteries
    wired up like this is that they are prone to faults, were you end up with a 'dead cell', this means that when you are charging/discharging the pack there might be one cell that doesn't hold its charge as much as others bringing the overall capacity of the battery down. Wiring
    Batteries
    in Parallel (DON'T DO IT!!) When
    Batteries
    are in parallel the mA/h will increase (not the voltage). Remember:- the mA/h does not mean the current going through speed controllers etc. it is only a guide to the maximum current a battery can except where it will last for one hour. Theory About The Whole mA/h Thing! Just think of the
    Batteries
    being a tank of liquid, when the liquid runs out the battery runs out. Below are four diagrams:- The height of the liquid in the tank increases the pressure/voltage at the bottom. The area of the liquid increases the overall capacity of the tank/battery. The number of amps the motor can draw is not limited to mA/h of the battery, the mA/h is only a guidance figure to tell us how many hours it will take before the battery/tank runs out. If you really wanted you could let out 10 Amps worth of liquid, just that the battery wont last very long unless it has a larger capacity. In Car Terms The diagrams below explain the differences between the size of the tanks and the distance that can be traveled. 5 Gallon Tank = 1000mA/h Battery 10 Gallon Tank = 2000mA/h Battery If you have a car with a small fuel tank it might do say 100 miles at 50MPH. if the same car had a larger tank it may do 200 miles at 50MPH. The size of the tank does not effect the speed the car does, but it will effect the distance it can travel. Golden Rule DO NOT MIX
    Batteries
    OF DIFFERENT TYPES!
    7 months ago by RNinMunich


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