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Old 11-22-2008, 06:01 PM   #1
Second time around
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batterys for larger scale

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Ok I have moved up to 25 and 28% scale planes .
As an old timer I have always flown big airplanes on regular recievers ,reg connector wiring and just what was available in my stoke
.I have never had servo failure burnt out wiring or any other problem except fences and pilot error.
So now I go out and buy a 25% plane put in a gas motor and all of a sudden you have to spend hundreds of dollars on 2 recievers 2 battery packs ect ect ect .
Bottom line do we need all these goodies or are we keeping up to the Jones
Picture below is a 18 lb plane still flying on Kraft servos .
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Last edited by Second time around; 11-22-2008 at 07:24 PM.
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Old 11-22-2008, 06:31 PM   #2
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Re: batterys for larger scale

me and my flying buddy were going over the same thing, hangar nine yak with large digital on the rudder, digital on each wing analog on elevators, takes 300mah to recharge the a123, 2200mah pack, after three 14 minute flights. why is everyone spending all the overkill money other than they can
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Old 11-23-2008, 02:21 PM   #3
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Re: batterys for larger scale

hi don,t need to fly with two receivers and two battery systems.i fly gas and have own five gas airplanes with no issues.everybody has there own opinions about what is better to fly with.i have flown with one receiver and two swicthes ,2 battery packs.
it,s a good choice two have a system where you will have a redundentcy .with the new technology in todays radio systems,it,s becoming almost no still happens as nothing is guarnteed.

most of my gassers i flew with had pcm receivers and i never had an issue with failure.i still was using one receiver,two switches and two batteries.i have since upgraded up to 2.4 radio system and also have a smartfly power system basically what it comes down to is what you want to also depends on what type of servos you use and power sytem.just my two cnts.

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Last edited by 3dflyer; 11-23-2008 at 02:25 PM.
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Old 11-23-2008, 06:53 PM   #4
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Re: batterys for larger scale

Originally Posted by Second time around View Post
Bottom line do we need all these goodies or are we keeping up to the Jones
Issue boils down to several things for me. If I have a $2000 airplane in the air having a backup battery and switch feeding the electronics makes sense. The extra $40-50 for a second battery and switch is relatively cheap insurance. There is also a safety factor, especially if you fly in contests or rallys in front of crowds of people. Having solid control of your plane and having the safety of a solid power system is just good judgement.

But you have to assess your own situation, the cost and safety factors and decide. For sure you can fly with one good battery. Given the behaviours I see around some of our local fields where people don't bother charging between outings I am not sure two batteries is enough for some of these guys, but that's a whole other story.

With 2.4 Ghz receivers a lot of the guys who used to fly two receivers in 40% planes are now going back to one receiver. But again I have seen large aircraft with multi engines and retracts that needed a lot of control channels and needed multiple receivers. You have to assess your own situation. Most 25-30% aircraft certainly don't need more than one receiver.
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Old 11-26-2008, 09:16 AM   #5
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Re: batterys for larger scale

the two switch thing is sorta off the wall as well if someting is draining the pack it will take twice as long, dead short just plain old smoke and crash, as for 2.4 ive lost two aircraft on a spectrum never will own one. they are not fool proof both times just plain old processor lock up. wasnt my radio. id trust the old craft servos fine. my hangar nine extra is using 10 dollor metal gear 160 oz torque servos nothing wrong with them. got a hobby city cycler that does a123, 5 amp draw the wire, 22awg just is warm. the hong kong servos draw a bit less than the digitals in the yak, but nothing to warrant a power system etc. advertising and sponsored fellas get every one dreaming of the big show and what is cool. i was amazed at the weight of a big mustang, 30 lbs quadra 42 and had 148 fut every where except a 1/4 scale on the rudder. it flew for yrs
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