Newbie - 150cc electronic questions.

[HoverLow]

Ok guys, I am heading to get my first 40% airplane and I would like to start getting all the electronic parts first.

The problem is I have no idea about what to get for it, since my last giant plane was put together more than 2 years ago, when everything was simpler.

So, I am looking for servos that will allow me using 2 per ailerons, 2 per elev half and two for rudder.

My first thinking is to get a

1 Smart Fly PowerSystem Competition 12 Turbo and 3 Smart Fly Equalizers II.

I guess I don’t need a regulator, since this power system has one built in.

I’m planning to run LiPO batteries.

The servo selection is other subject, but just for reference, I am stuck with the choice between Futaba S9157, Hitec HS7950TG, JR 8711 or JR 8711HV.

So, what do you guys think about this setup?

Is it ok? Should weight be a concern?

Do I have to use dual receivers? What’s the point with them?

Should I go for EQ10?

The brain will be a Futaba 12 FG that I already have.

Thank you very much.

Eduardo.

[AlexandreFusco]

Olá Eduardo,

Eu estou montando um Ultimate 46% da Hangar 9. O Meu Setup é o seguinte:

- JR 8711 - Profundor e Leme;
- Hitec 5955TG Ailerons;
- Eq10 + AR9100 (aquele que é para aviões grandes com 4 jogos de antenas);
- Duas Baterias A123 de 4.600mha (IronCorps FROMECO) para o Eq10 + 1 de 2.300 para a Ignição;
- DA 150cc
- Não utilizo reguladores já que a A123 não precisa pois entrega 6.6 volts.

Bom acho que é isso.

Abraços,
Alexandre

[HoverLow]

Olá Alexandre.

Muito obrigado pela resposta.

Não sei se podemos falar em português aqui, mas já que ninguém respondeu mesmo, acho q não tem problema.

Incrivel seu setup.

Tbm estou animado em usar A123. Ela não precisa de regulador, mesmo quando usada em servos comuns para afogador e acelerador?

E sobre usar 2 receptores? É bobagem hoje em dia.

Acho q estou com meu set mais ou menos em mente.

Vou colocar aqueles servos Hitec HS7950TG, q também são High Voltagem, mas têm mais de 400oz em 6.0v.

Então será mais ou menos assim:

- Futaba 12FG
- Hitec HS7950TG em todas as superfícies (2 em cada aileron, 2 para o leme e 1 para cada metade de profundor). Não decidi ainda sobre o afogador e acelerador.
- RX Futaba 14CH FASST
- As baterias serão as mesmas das suas
- DA 170.

O que acha? Será q a quantidade de servos será suficiente?

[khedge]

I am setting up my 42% Dalton as follows

Duall Jr 922 rx's

Hitec 7950's 2 per aileron, 2 per elevator and 2 on the rudder
hitec 7940 for the throttle

2 5200 fromeco lipos

No regs, no matches , no powerexpander

with the servo grouping in the 12FG you don't need a power expander

[HoverLow]

	Quote: Originally Posted by khedge
	I am setting up my 42% Dalton as follows Duall Jr 922 rx's Hitec 7950's 2 per aileron, 2 per elevator and 2 on the rudder hitec 7940 for the throttle 2 5200 fromeco lipos No regs, no matches , no powerexpander with the servo grouping in the 12FG you don't need a power expander

Thank you.

Interresting setup.

Just one question: Is there any issue about burning the system for not using power expanders? That's my only concern about get rid of them on a plane with all that eletrick power...

[khedge]

No you can use powerexpanders. But the JR 922 is a power expander in it's self. It can handle 50 amps. Also it has it's on switch and you can plug the batteries directly into the battery. Honestly the reason I am doing this because I want to keep it simple. I recent also my brand you Dalton and I had alot of un nessary electronics. So I am starting over.

[AlexandreFusco]

	Quote: Originally Posted by HoverLow
	Olá Alexandre.

	Quote: Originally Posted by HoverLow
	Muito obrigado pela resposta. Não sei se podemos falar em português aqui, mas já que ninguém respondeu mesmo, acho q não tem problema. Incrivel seu setup. Tbm estou animado em usar A123. Ela não precisa de regulador, mesmo quando usada em servos comuns para afogador e acelerador? E sobre usar 2 receptores? É bobagem hoje em dia. Acho q estou com meu set mais ou menos em mente. Vou colocar aqueles servos Hitec HS7950TG, q também são High Voltagem, mas têm mais de 400oz em 6.0v. Então será mais ou menos assim: - Futaba 12FG - Hitec HS7950TG em todas as superfícies (2 em cada aileron, 2 para o leme e 1 para cada metade de profundor). Não decidi ainda sobre o afogador e acelerador. - RX Futaba 14CH FASST - As baterias serão as mesmas das suas - DA 170. O que acha? Será q a quantidade de servos será suficiente?

Olá Eduardo, você tem razão, por uma questão de respeito aos colegas é melhor falarmos em Inglês.

Regarding to A123, in my understanding is the best choice, less on-board equipment , less weight less thing to go wrong and fast to charge, I have no issues when I use standard servos and A123, but, I do recommend for you to use Metal Gear and Digital servos for Throttle, best response and reliable (vibrations close to big engines may cause problems with standard servos)

I’m using one AR9100 receiver along 4 sets of antennas (total of 8 antennas) , this receiver has been developed to handle high AMPS and voltages up to 10 volts, just for Big Planes and heavy setups.

The servo set that you are using, I believe that is very enough.

Anything just let me know, send photos when you can, my e-mail is a.fusco@terra.com.br

Best regards,
Alexandre Fusco

[jonathanmanopla]

with the hitec 7950tg its all you need with the torque output that they have, i use smart fly on my planes because this thing give the power to the rx separate of the power of the servos, and let you center each servo if you buy a eq version i fly with Jr radios, but also i know that the futaba 12 radio and 14mz radios have the grouping option , but i prefer for safety the smar fly , on batteries i use li-ion bateries 4cell 5200 mah 2 for rx and servo , and another one 2600 mah to the ignition with a smar fly ignition regulator,
good luck

[jonathanmanopla]

also if you use only hitec 7950 and you connect the accelerator servo direct to the rx instead of connect to the smart fly you can use with out regulator and get all you system using 7.4v to power up and get all the torque on the hitecs

[HoverLow]

	Quote: Originally Posted by jonathanmanopla
	also if you use only hitec 7950 and you connect the accelerator servo direct to the rx instead of connect to the smart fly you can use with out regulator and get all you system using 7.4v to power up and get all the torque on the hitecs

That is the info I have looking for.

So, I can, i.g., conect my throttle and choke servos directly to the RC even using smart fly system and so get rid of the regulator.

I still want a simple setup, but I also want the safety of a smart fly just to forget about any eletrick problems while flying.

[jonathanmanopla]

yes that its correct

[kevinf2501]

I use Smartfly Turbo Power systems on every 150cc and above plane in either of 2 configurations (see below). I also use TP Lipoly batteries so I always max out and provide a constant 17.5 amps for distribution to the servos (either pack will provide full 17.5 amps). I just dont like all the amps going through the receiver. Nothing wrong with doing it that way I just prefer not too.

A Smartfly Power System EQ6 turbo is the way to go if you want servo synchronization.
Even though it says EQ6 it has 8 channels. (only six can be syncronized).

As it has the built in regulator just plug your dual batteries onto it with deans connectors and your done.

This unit will handle a lot of servos. I am using one on my 50% Yak that has 15 servos
1 x choke
1 x Throttle
1 x Rudder (3 servos Synchronized)
1 x left Ail (3 servos Synchronized)
1 x Right Ail (3 servos Synchronized)
1 x right Ele (2 servos Synchronized)
1 x left ele (2 servos Synchronized)
1 x Fiber optic kill switch

I also use a the Power System Competition 12 Turbo as well if I dont need to synchronize and use 9 channels and use the radio to synch everything (I have 9c and 10c radio)

1ch x Throttle
4ch x Aileron
2ch x Elevator
1ch x rudder (I use SWB self synchronizing tray so only need 1 channel for 2-3 servos
1ch x Fiber Optic Kill

[kevinf2501]

in addition
I always use the smartfly fiber optic kill and the failsafe pin switch.

[RMaia]

Edu!!

Awesome that you are getting a 40%. The bigger they are, the better.

I would use a Power Expander. It's not a good idea to run the servos directly via the Rx. It may be "acceptable" on a 15lb 50cc plane with 5 servos, but on a 40%, there's just too much current flowing around. Some JR receivers are already prepared for this, they have a separate power input, with more robust wiring and connectors. Essentially a "built-in" PowerExpander, but unfortunately no current Futaba has this feature...

Regarding which Power Expander is best, I have a Power Expander EQ6 Turbo and like it a lot. It already has the equalizers and the regulator built-in, so it's a nice "contained" system.

However, since you're using a 12FG, you also have the possibility of matching the servos from the Tx itself, with no need for an equalizer on the Rx side. It's also a real possibility, and for this, the EQ6 won't be enough (as it only has 8 channels). The Competition 12 would be a better choice, with it's 12ch output. The EQ10 is a nice choice if you don't want an integrated regulator, and it offers the equalizing capabilities as well. It's 10ch output would be enough for plugging each servo into one channel and then grouping everything via Tx. However, keep in mind that if you will be using the Futaba R6014HS Rx, you won't be able to take advantage of the higher frame-rate for digi servos on all channels if you to the matching via the Tx...

As for the batteries, both LiPo's and A123's are good ideas. I've used them both and you can't go wrong with either. Only slight disavantage of the A123's is that you don't get the linear power in the servos as you'd get with a regulated LiPo. The reg keeps volts at a constant 6 (or whatever voltage you set it to), whereas with "straight" A123's the voltage drops as the battery is discharged, so the servos "seem" to loose power. Not a deal-braker, very very minor thing, but I personally prefer the linear output of the regs. If you don't mind the slight power "loss" over the battery cycle and want to keep things simpler, you can go the A123 route just fine.

For the servos, the 7950TH from Hitec is a really nice choice, but the JR8711 is a great servo as well. I have both Hitec's (athough not the 7950, yet) and JR's and like them all. I would decide on what I could get more easily. Two of either these servos per aileron, two per rudder and one per elevator half is really all you need.
For the throttle, I'd use a fast servo. JR8717 comes to mind, 0.07s transit time... At least that's the one I'll be using on my DA-100...

I wouldn't use dual receivers, I don't feel it's necessary.

The DA-170 is a great choice!! We do have the constraint of only AvGas being ethanol free around here, but I don't think it's a problem. At least, so far, of every DA owner I know around here, none had any problems related to the fuel.

Anyway, where are you planning to buy your DA from? Is it someplace here in Brazil?