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All Forums >> RC Airplanes >> Giant Scale Aircraft - 3D & Aerobatic >> Quique's Aircraft Support >> First Giant just bought
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First Giant just bought - 4/6/2007 11:11:32 AM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		I just purchased the QQ 86" Yak. Although I am an experienced pilot, this is my first giant scale. I was hoping for input on what batteries and switches are the best way to go for this bird. Also I take it there are several ways to set up the ignition kill, any input?

Thanks


Z

< Message edited by Zman39 -- 4/6/2007 11:12:17 AM >
       Post #: 1

RE: First Giant just bought - 4/6/2007 12:38:17 PM   
randy racer


 

Posts: 1277
Joined: 4/7/2005
From: mayfield, KY, USA
Status: online 		welcome to the world of giant scale gas. you are going to love it. i use Fromeco batteries and switches and on a plane that size i would use 1 5200 for receiver and a 2600 on ignition with fromeco regulators and badger switches on both. smart fly makes a nice fiber optic ignition kill switch that i have been using for a while and they have worked great. you need a kill switch on a gas plane so you have a way to shut it down in case of a throttle servo failure. there are other brands of batteries and switches that work great but i have had very good luck with fromeco and when needed great service like you get with QQ aircraft co.

good luck and keep us posted on your build

randy

_____________________________

Revver Bro #196
Ford RV Refrigeration Training Center & The RVRN

(in reply to Zman39)
       Post #: 2

RE: First Giant just bought - 4/6/2007 3:48:02 PM   
Barry Cazier


 

Posts: 3335
Joined: 10/2/2003
From: Idaho Falls, ID, USA
Status: offline 		I just use regular batteries.

I use Hobbico NiMH 2000mA 6v on the radio and Expert NiMH 1500mA 6v on the ignition. This isn't as eleaborate as what some use but it is functional and will allow a minimum of 5- 13 minute flights for me. I could probably get more but I usually recharge about then.

I use and agree that a kill switch is required on a gas engine. I also use the SmartFly optical kill switch. It's a nice one.

I'm using the following servo set up.

Rudder HS5955TG
2- Elevators HS5955TG
2- Ailerons HS5985MG
Throttle Futaba 9001
Choke Futaba 248

I'm using a DA50 with cannister set up. NX 22x8 prop

As of right now...this is the best flying plane I've never flown.

Thanks
Barry

(in reply to randy racer)
       Post #: 3

RE: First Giant just bought - 4/6/2007 5:28:12 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		I am assuming I will need two switches, one for flight pack and one for ignition? ALso, is anyone running a redundant battery system?

Thanks

Z

(in reply to Barry Cazier)
       Post #: 4

RE: First Giant just bought - 4/6/2007 6:12:53 PM   
Barry Cazier


 

Posts: 3335
Joined: 10/2/2003
From: Idaho Falls, ID, USA
Status: offline 		Yes, you will have to run two switches.

I don't run redundant equipment but many people do. From what I can read, I would guess nearly half. I've never had a problem but I'm constantly knocking on wood.

thanks
Barry

(in reply to Zman39)
       Post #: 5

RE: First Giant just bought - 4/6/2007 6:59:40 PM   
octanehuffer



Posts: 693
Joined: 7/15/2006
From: Lakeland, MN, USA
Status: offline 		So is it acceptable to just use the choke servo for a kill switch besides the throttle?

_____________________________

QQ 120" Yak, QQ 86" Evolution, QQ 69" Saito 1.25, QQ 49" 32SX, QQ E-Yak, H9 T-Craft G-26, etc

(in reply to Barry Cazier)
       Post #: 6

RE: First Giant just bought - 4/6/2007 10:06:17 PM   
randy racer


 

Posts: 1277
Joined: 4/7/2005
From: mayfield, KY, USA
Status: online 		if you just use the choke for a engine kill and loose the receiver you have no engine shut off.

randy

_____________________________

Revver Bro #196
Ford RV Refrigeration Training Center & The RVRN

(in reply to octanehuffer)
       Post #: 7

RE: First Giant just bought - 4/6/2007 10:25:01 PM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Okay next question; I already have four Futaba 9252 digital servos laying around. These are 92oz/inch torque, will these be sufficient for ailerons and elevators?

Z

(in reply to randy racer)
       Post #: 8

RE: First Giant just bought - 4/6/2007 11:30:23 PM   
octanehuffer



Posts: 693
Joined: 7/15/2006
From: Lakeland, MN, USA
Status: offline 		What about PCM failsafe?

Zman those servos will not be suffecient, sorry.

_____________________________

QQ 120" Yak, QQ 86" Evolution, QQ 69" Saito 1.25, QQ 49" 32SX, QQ E-Yak, H9 T-Craft G-26, etc

(in reply to randy racer)
       Post #: 9

RE: First Giant just bought - 4/7/2007 12:15:56 AM   
Zman39



Posts: 467
Joined: 1/27/2005
From: Central, FL, USA
Status: offline 		Okay, is it the torque or the gears that makes them not efficient? These servos are commonly used my hardcore 3d heli pilots, so I was thinking they could take a pounding.


Z

(in reply to octanehuffer)
       Post #: 10

RE: First Giant just bought - 4/7/2007 12:30:19 AM   
octanehuffer



Posts: 693
Joined: 7/15/2006
From: Lakeland, MN, USA
Status: offline 		Both. The torque rating is too low and the geartrain is not designed for the load that will be applied by the airframe.

_____________________________

QQ 120" Yak, QQ 86" Evolution, QQ 69" Saito 1.25, QQ 49" 32SX, QQ E-Yak, H9 T-Craft G-26, etc

(in reply to Zman39)
       Post #: 11

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