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Jan 14, 2022, 08:43 PM
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Nah, I’d be very uncomfortable hand launching. I don’t even hand launch my 48” planes.
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Jan 15, 2022, 10:45 AM
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Doc Austin's Avatar
Quote:
Originally Posted by Carinteriorguy
Nah, I’d be very uncomfortable hand launching. I don’t even hand launch my 48” planes.
It's easy to do a wingtip launch with these planes. It scares the crap out of some people when I do it, but there's really nothing to it. You just point it away from the pits, hit the power and don't let go until the nose is pointed up a bit. Once you figure it out it's actually easier than a ROG takew off.

I learned this on the 40-42" 3DHS planes because we weren't afraid to wreck those. I've done it with 48s and 52s all the time but doing with a 60 does scare me a bit.

Jan 15, 2022, 04:29 PM
Registered User
I do this all the time with my larger size foamies, I’m just too chicken with my larger planes. I have launched my 48” Skywing hybrids by holding them behind the canopy before with no problems, but I still have to land them and they just get tore up by the darn grass. I don’t like to fly without the LG because for me they are an important feature to keep my orientation and they don’t do well where I fly. Thanks to urban sprawl in the DMV ( DistrictMarylandVirginia) area it’s getting harder to find anywhere to even fly anymore.
Jan 23, 2022, 09:45 PM
Registered User
Hey guys... So I have a few questions on the game bird. I recently acquired one and am trying to get it dialed in.

60" Gambird
Hitec 7245's
Torque 4016
Talon 90
3300-3700 6S
Also have 2oz in the nose for balance. Might be able to get that gone but would struggle to get one strap on the battery

Plane is pretty damn fun to fly. However I've been flying my 60" a ton this year and this thing is just so different then that.

Seems like others I'm having a hard time reading this plane. I have the CG set at 5" back of the root like the manual says. I have to give quite a bit of down trim in to get it to trim in. However when I flip it inverted it still noses in . Up line 45 shows the same still nose heavy. Then i'll move the battery back and add more down trim, and still nose heavy. Seems odd.

I went back to my original CG which was 4-3/4" back which was obviously nose heavy. Had a hard time in a hover. So I'd bump it back till it would hover well. Which was at about the 5" back, like the manual states. but in an inverted pass it still shows nose heavy.

Also, as I move it back it does the things a tail heavy plan will start to do, It over rotates in a roll a bit, Like I'm leaving an input in. And can be a bear to land at times

It also pulls toward the gear in knife. Which I would assume is partly due to the negative trim input to get it to fly level

I know Extreme Flight rarely misses on planes. I fully don't expect this or want it to fly like my NG. This seems more like a low and slow bird that just like to flip around with ease. Just wondering how I can tame this sucker!!
Jan 24, 2022, 12:43 AM
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Doc Austin's Avatar
Quote:
Originally Posted by theused4
Seems like others I'm having a hard time reading this plane. I have the CG set at 5" back of the root like the manual says. I have to give quite a bit of down trim in to get it to trim in. However when I flip it inverted it still noses in . Up line 45 shows the same still nose heavy. Then i'll move the battery back and add more down trim, and still nose heavy. Seems odd.
There's a former just behind the wing tube. I've got mine balanced there with the nose hanging a little and it's perfect.

Tail heavy planes are hard to diagnose because they never do the same thing twice, will pass the roll over and 45 degrees on one pass and fail the next. They just kind of don't fly well. If I am not happy with a plane, it's usually because it's tail heavy. However, a nose heavy plane flies nose heavy all the time and that's why I always start off that way. I move the pack back until precision tracking suffers, and then go back to where I had it the flight before. Time consuming, but worth it.

Also, trim the plane at full throttle. You can't believe how many problems that solves.

Quote:
This seems more like a low and slow bird that just like to flip around with ease.
Mine tracks beautifully, so it's good for more than low and slow. Just keep working with it and when you hit the sweet spot the thing will come alive.
Jan 24, 2022, 01:42 AM
Registered User
Theused4,

Mate I would concur with Doc. I reckon you have over down it on the forward weight balance. Half it. I put in about 20g at the front of mine and totally nailed the c.g

The thing about the Gamebird is it is razor sensitive to c.g. Everything flows downstream from this.

All the Best

Danny
Jan 24, 2022, 05:51 AM
Registered User

cg


Well, I have 3oz of lead on the firewall, 492 gram 3300 battery. The battery is 1" back from the firewall. I had to build a little box to catch the front end of the battery and get one strap on the back. And my CG is right at the back end of the range. All stock with PM servos.
Jan 24, 2022, 07:18 AM
Registered User
Thanks guys. Doc this is exactly how I do it too. Except I trim at 3/4 throttle. always have and never had an issue.

This biggest question was I guess,...

Why as I move the CG back I need down trim. but even in an inverted pass it still noses in. And significantly too. Not just a slight push. When I land you can see the down elevator trim its pretty weird.

I'm the type that won't let it go till I figure it out. Like I said its a blast to fly. But it does a lot of weird things. Just what I would think is very uncharacteristic of an EF plane for sure.

Next I'll swap some servos around to see if that my be my issue too?

And Dan I have to agree. I have a Hanger 9 extra too and the CG is the same on that. I can move the bat like 1/8" and it goes from neutral to tail heavy.
Jan 24, 2022, 10:54 AM
Fun Specialist
Doc Austin's Avatar
I've had a few planes that carried down trim, but otherwise flew fine. I'de say get it to pass the inverted and 45 degree tests and don't worry about where the trim ends up. Try balancing on that former I mentioned, only a little forward, and then start working back.
Jan 24, 2022, 12:53 PM
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Doc Austin's Avatar
theused4, if you are in Florida, I'de be delighted to take a look at it.
Jan 24, 2022, 02:20 PM
Registered User
I will be in March! I'll have her dialed in by then I hope. I only have like 10 packs through it now and half of that was windy. I'll get the hang of her for sure. Just wanted to get a little input from you guys to see

Thanks!
Jan 24, 2022, 02:33 PM
Fun Specialist
Doc Austin's Avatar
Quote:
Originally Posted by theused4
I will be in March! I'll have her dialed in by then I hope. I only have like 10 packs through it now and half of that was windy. I'll get the hang of her for sure. Just wanted to get a little input from you guys to see

Thanks!
I'm in the Tampa/St. Petersburg area. If you are in the area, send me a PM and let's burn a few packs.


Last edited by Doc Austin; Jan 24, 2022 at 02:41 PM.
Jan 24, 2022, 04:09 PM
Registered User
Awesome! That sounds like a plan. Did you end up with any additional weight in the nose at all? And what size packs Doc?

Thanks
Jan 27, 2022, 07:32 AM
Registered User
Quote:
Originally Posted by theused4
Hey guys... So I have a few questions on the game bird. I recently acquired one and am trying to get it dialed in.

60" Gambird
Hitec 7245's
Torque 4016
Talon 90
3300-3700 6S
Also have 2oz in the nose for balance. Might be able to get that gone but would struggle to get one strap on the battery

Plane is pretty damn fun to fly. However I've been flying my 60" a ton this year and this thing is just so different then that.

Seems like others I'm having a hard time reading this plane. I have the CG set at 5" back of the root like the manual says. I have to give quite a bit of down trim in to get it to trim in. However when I flip it inverted it still noses in . Up line 45 shows the same still nose heavy. Then i'll move the battery back and add more down trim, and still nose heavy. Seems odd.

I went back to my original CG which was 4-3/4" back which was obviously nose heavy. Had a hard time in a hover. So I'd bump it back till it would hover well. Which was at about the 5" back, like the manual states. but in an inverted pass it still shows nose heavy.

Also, as I move it back it does the things a tail heavy plan will start to do, It over rotates in a roll a bit, Like I'm leaving an input in. And can be a bear to land at times

It also pulls toward the gear in knife. Which I would assume is partly due to the negative trim input to get it to fly level

I know Extreme Flight rarely misses on planes. I fully don't expect this or want it to fly like my NG. This seems more like a low and slow bird that just like to flip around with ease. Just wondering how I can tame this sucker!!
Mine is balanced as per Doc’s recommendation and is very responsive and predictable with little trim required.
Last edited by Phil HH; Jan 30, 2022 at 05:37 PM.
Jan 31, 2022, 10:23 PM
Registered User
So I was able to spend a little more time with the Gamebird yesterday!.. Flew 8 more packs and finally started to get a little more comfortable with it.

So a few take aways...

I was nose heavy for sure. I've never had a plane be nose heavy and give tail heavy characteristics. That was a little odd. But it was still nosing in inverted and inverted 45 so I just kept moving back. I settled in with the battery 2" back from where I had it! crazy. It flys much better now. Might be the floaty feel of the plane that was throwing me off a bit.

And you were right Doc, my CG is now that former to the rear of the wing tube. I pick it up canopy off on that former as you said and it worked out good. With the canopy on and finger tips under the wings it shows tail heavy but flys neutral. So I ended up like 5.25 back of the wing root.

This thing is no NG! but thats awesome because I didn't want it to be. haha. It flys like a 60" foamie. It does some violent KE spins and awesome crankshafts and pop tops. And its low and slow abilities are fantastic. Inverted harriers at my old starting CG would tip stall bad! she locks in pretty solid now and super happy there.

I found you have to land mine with the power on just ever so slightly. As soon as I get off the throttle and float it in it wants to drop the wing a touch. Which is fine... as long as your ready for it. Other then that I can't wait to get more time on it

My 60" NG will I bet still be my go to plane in that size. But this will be a close second I think as I get used to it. And defiantly gives two different flying experiences for sure

So for all the guys adding nose weight and jamming the batteries in the nose, just as I started. It gets a lot better as you move it back. At least on mine it did


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