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No, you can’t go to a higher voltage because 3S is the highest that the ESC (speed controller) is designed to work at.
Turnigy is a good brand. Of the list on the site you’ve referred to I’d think the 1300mAh would be best,…….but I don’t know if it would physically fit into your model.. You’ll have to check it’s size.
B.T.W. Why are you buying your batteries from the States? It would be easier and quicker to get them in the UK or Ireland.
K.
Ahrrrrreee. Now we understand a little bit more. :wink:
The battery you want is a 1100mAh 3cell (shown as 3S in the adverts) Li-po with a discharge rate of around 20C (20 times it’s capacity)
So,…..if you look in the adverts for a Li-po batteries = 1100mAh 3S 20C will give you about the same powered flight time as the original Metal-Hydride battery set up the plane originally had.
If you wanted to use the propeller for longer periods you could get a bigger 3cell li-po, may be a 1500mAh. But you must ensure that whichever size battery you get it will physically fit into the plane. The shops selling them will normally tell you the physical size of each battery.
K.
Hi Sean,
Good to hear you've found a club near you, and presumably with a flying field?
As you live in Bandon it maybe the closest club to me (Bantry), so wonder where it is?
May just see you there on Saturday....
Ron
hi sean,
adding my tuppence worth.....everything said so far is spot on. now, to check cg in flight. fly the model to about 3 to 4 hundred feet. might seem a lot with what looks like a small model but you need to have plenty of sky under the model to recover. ok, at height, face model into wind, power off, apply down elevator to make the model dive (not too steep, mind you!) relax your grip on the stick and see what the plane does.
if it recovers in a long slow arc, your cg is spot on.
if it pulls up fairly sharply, cg too far forward. move battery back or remove lead.
if it continues to dive, cg too far back. move battery forward or add lead.
any changes you make should be one at a time and in small amounts.
have you anyone locally to help with your 1st flights?
gerry
If I may add, the CoG is roughly 1/3 of the average chord of the wing! (like for the Crystal, it's almost 50% of the root chord...)
But also depend of the calage to complicate the thing slightly further
Saw on another forum, the greatest advice ever to find the correct CoG of a plane !... This is where the wing is the thickest ! Whatever wing shape, size, profile etc :shock:
Anyway, centre the plane like they say in the manual, and you will refine it in flight.
