namustang1a
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why are lifepo4 flight packs not used very much?
namustang1a replied to namustang1a's topic in General Electric Flight Chat
Thanks john I was not aware how similar the drop of was, we live and learn(field charger... top up in 20 mins fly till dark ) Ian -
why are lifepo4 flight packs not used very much?
namustang1a replied to namustang1a's topic in General Electric Flight Chat
John f.... I am aware of the veried uses of Lithium-ion cells,Lithium-ion being the type of cell not the chemical make up,lipo being one of them LiFe being another(see Lithium-ion on wiki). As for lipos if treated/cared for correctly there is no reason why they should be dangerous,i think a lot of the fires etc where possably down to lack of user info in the way to handle them when first introduced , education is a good thing but accidents happen unfortunately. Allan Bennett... LiFepo4 poly packs have been around a few years now, yes they are heavier then a lipo but then again how offten do you add nose weight to an airframe. Grant webb... LiFepo4 packs are used a lot as rx/tx power which to me is odd if you realise that the power drop off is very quick much more like a fuel tank then batteries. Thanks for the link I have seen it before, its the only one I have come a cross wilst looking into LiFepo4 safety. Ian -
why are lifepo4 flight packs not used very much?
namustang1a replied to namustang1a's topic in General Electric Flight Chat
Allan Bennett.. I am referring to the lifepo4 poly flight packs(looks like a lipo ),A123's are the can cells like nimh packs.**LINK** Ernie.. Swimbo is also involved in building and flying so no deception and I do like the quiet life. Ian -
I have been puzzeled to why lifepo4 flight packs are not used more and the lack of availability. I live in a smallish flat with no garden/shed and am banned(by swimbo its her flat)) from owning lipos just incase of misshaps . I do have powered gliders using a123 hard cells but thay are limited to low amh . The poly flight packs have good amh ,fast charging and can be run down to next to no volts, more life/charges and as far as I know don't self combust if a misshap happens,just brought a 4s pack from HK that ill be trying soon in a veron Cessna. Any views/comments on the subject good or bad are most welcome. Ian
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From what I can recall from building a DB moth 40(cirrus moth) and modding it to look like a gypsy moth is the main difference is the cowling and front fuz up to the cockpit and the under carriage, straight axel on the cirrus and the X type on the gypsy. I built mine when I was 15 or 16 as my first scale aircraft fitted with an early os 48 surpass it even had closed loop for rudder and ele.
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I'll never feel bad about hitting a tree again!
namustang1a replied to Phil Brooks's topic in Full Size Aviation
im sure by now that any rc flyer knows.....trees jump ..... Ian -
spray gun and compressor
namustang1a replied to geoff wise 1's topic in Model Engineering and Accessories
just a little pic of my 1/16 tiger tank mentioned above. -
spray gun and compressor
namustang1a replied to geoff wise 1's topic in Model Engineering and Accessories
got me one of these last springtime seams a great deal to me, used it on a 1/16 rc tank came out ok to. **LINK** -
"....19,20,21 see I told you it was wrong there should only be 20 rivets on the aileron"
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oww I see now..so if you give a copyed plan away that's ok?....think its to complicated for me
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Could this also apply to the selling of a second hand kit or air frame.. or even any think second hand??? Ian....(to early in the day department)
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woodwings mower was great fun,we had a granny in the bed aswell. Ian(woodwings mower pusher)