I too love my A-10 (maidened #3 yesterday). Some guys have upgraded to 90mm (not sure if they used the inrunner or outrunner motors), but I find it has way more than enough power and speed on the stock 80mm setup.

Pat

Originally Posted by crxmanpat

I too love my A-10 (maidened #3 yesterday). Some guys have upgraded to 90mm (not sure if they used the inrunner or outrunner motors), but I find it has way more than enough power and speed on the stock 80mm setup.

Pat

I agree it’s great stock. But i can’t leave well enough alone so I’ve been itching to upgrade it.

I’m just worried about the esc wire length. It would sure have to travel a long way and the ESC i would use isn’t that long.

The good thing about this one is Freewing added extra capacitors to the wiring, so wire length should not be an issue.

Pat

If going 90mm, better to keep it to a sub 100A setup and use stock ESC and fitted capacitors I would think.

Originally Posted by crxmanpat

The good thing about this one is Freewing added extra capacitors to the wiring, so wire length should not be an issue.

Pat

I’m not sure what a capacitor is, would you mind explaining?

Capacitors (caps in geek slang) are kinda (sorta not really but can pass for) reservoirs in a hydraulic system. This is generally speaking. Long wire runs need caps as necessary to not spike the ESC's. They absorb "voltage spikes" that develop due to wire impedance in long wire runs. They look like little barrels soldered onto the end of the wires near the ESC's located in the nacelles. All ESC's have caps as well so the FET's are not fried by variable voltage... but they are designed for 10" wire runs not 30" ones. It's essential to use them in long 2 wire, DC wiring (not an issue in 3 phase wiring AC such as motor to ESC). Freewing designed the A-10 wiring system properly by using the capacitors as they have.

Originally Posted by Eddie P

Capacitors (caps in geek slang) are kinda (sorta not really but can pass for) reservoirs in a hydraulic system. This is generally speaking. Long wire runs need caps as necessary to not spike the ESC's. They absorb "voltage spikes" that develop due to wire impedance in long wire runs. They look like little barrels soldered onto the end of the wires near the ESC's located in the nacelles. All ESC's have caps as well so the FET's are not fried by variable voltage... but they are designed for 10" wire runs not 30" ones. It's essential to use them in long 2 wire, DC wiring (not an issue in 3 phase wiring AC such as motor to ESC). Freewing designed the A-10 wiring system properly by using the capacitors as they have.

Awesome thanks Eddie

Gee, I think you would be better off spending the money on other RC things!! LOL
The A-10 is overpowered as it is and the stock EDFs sound good and 'right'. There is just no need for 90mm EDFs in it. Not any valid reason at least.
And to do it COSTS a LOT. You could pretty much buy some other entire Freewing PNF plane for that! eg Mig-21 etc

Originally Posted by Eddie P

Capacitors (caps in geek slang) are kinda (sorta not really but can pass for) reservoirs in a hydraulic system. This is generally speaking. Long wire runs need caps as necessary to not spike the ESC's. They absorb "voltage spikes" that develop due to wire impedance in long wire runs. They look like little barrels soldered onto the end of the wires near the ESC's located in the nacelles. All ESC's have caps as well so the FET's are not fried by variable voltage... but they are designed for 10" wire runs not 30" ones. It's essential to use them in long 2 wire, DC wiring (not an issue in 3 phase wiring AC such as motor to ESC). Freewing designed the A-10 wiring system properly by using the capacitors as they have.

That's a accumulator

I was surprised to see the caps when I had to reverse the EDF motor, as one of mine came wired wrong.

Originally Posted by Thisguy65

That's a accumulator

I was surprised to see the caps when I had to reverse the EDF motor, as one of mine came wired wrong.

You are right in some ways. A reservoir in a high pressure aircraft hydraulic system OTOH (what I was thinking about) will absorb pressure bumps when high volume consumers come on line and go off, so that the pressure bumps don't break lines or damage equipment. An accumulator can do similarly on the inlet side but also has the capability to actually power something for a full cycle or three. A capacitor of this type in RC usage has no real accumulator ability aside from a spark or a strobe flash or two but it works well to dampen out the electric "bumps". I guess we could say it's similar to both, but I'll agree if I had to pick one, it's probably more like an accumulator

Originally Posted by Eddie P

You are right in some ways. A reservoir in a high pressure aircraft hydraulic system OTOH (what I was thinking about) will absorb pressure bumps when high volume consumers come on line and go off, so that the pressure bumps don't break lines or damage equipment. An accumulator can do similarly on the inlet side but also has the capability to actually power something for a full cycle or three. A capacitor of this type in RC usage has no real accumulator ability aside from a spark or a strobe flash or two but it works well to dampen out the electric "bumps". I guess we could say it's similar to both, but I'll agree if I had to pick one, it's probably more like an accumulator

Agree my friend. In my line of work...well old line of work, kinda odd saying that as my last day was this past Friday, the those terms got intertwine. We've used accumulators as "shocks" for a load sense tied to the lift cylinders (Heavy equipment, CAT). Used relief valves to combine the two functions you outlines with absorption vs make up when pressure drops.

Originally Posted by PeterVRC

Gee, I think you would be better off spending the money on other RC things!! LOL
The A-10 is overpowered as it is and the stock EDFs sound good and 'right'. There is just no need for 90mm EDFs in it. Not any valid reason at least.
And to do it COSTS a LOT. You could pretty much buy some other entire Freewing PNF plane for that! eg Mig-21 etc

Yea but what fun is it to leave something alone?!?!

Originally Posted by Bizjets

Yea but what fun is it to leave something alone?!?!

While I would normally agree with you about this, I'll leave mine as is. The stock set up is perfect, IMO.

Mike

Most foam models NEED things done.... often quite a lot. if you want a truly fit for purpose, and reliable, operating model!
But the A-10, and also the L-39 at least, are two that were actually made 'near perfect' just as they came from Freewing! So money can be saved and used for other things..... hehe (or rather, spend the money on the upgrade MAIN gear and then the A-10 will be perfect... err, soften the nose spring too - do NOT buy the upgrade nose gear....).

Originally Posted by PeterVRC

Most foam models NEED things done.... often quite a lot. if you want a truly fit for purpose, and reliable, operating model!
But the A-10, and also the L-39 at least, are two that were actually made 'near perfect' just as they came from Freewing! So money can be saved and used for other things..... hehe (or rather, spend the money on the upgrade MAIN gear and then the A-10 will be perfect... err, soften the nose spring too - do NOT buy the upgrade nose gear....).

Money is for spending not saving! Lol i agree the a-10 is awesome as is. I just figured i could make it even better.

I bought the upgraded main and nose gear. Never had a problem with bouncing.