35% Extra Build
#52
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From: Suffolk,
VA
1/16" holes used to mount the servos with the screws provided i cant get my drill deep enough into the fuse to reach it is hanging up on that big wooden X
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From: Flower Mound (near Dallas),
TX
You don't need to drill holes, just use a long screwdriver and push those babies in, they are self tapping screws.
Here's a great investment for anybody building these planes.
Go to microfasteners.com and order a couple items. First is hex head servo screws 7/16" long, you will use them everywhere, not just in servos. They are so handy you'll want to buy a couple bags. Maybe get 1 bag of the longer 9/16" screws also.
Then order the long handled ball socket wrench, 5/64". You will feel like a god with all the things you can do and places you can reach. Totalo cost is about $10 for a wrench and a bag of screws.
TF
Here's a great investment for anybody building these planes.
Go to microfasteners.com and order a couple items. First is hex head servo screws 7/16" long, you will use them everywhere, not just in servos. They are so handy you'll want to buy a couple bags. Maybe get 1 bag of the longer 9/16" screws also.
Then order the long handled ball socket wrench, 5/64". You will feel like a god with all the things you can do and places you can reach. Totalo cost is about $10 for a wrench and a bag of screws.
TF
#59
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From: Suffolk,
VA
its funny u also mention that i have a set laying around here for a kit i was building before i got this plane well i sold the kit and figured those went with but i found them the other day trying to find my hobby knife which i also ended up finding
#61
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From: Goldsboro,
NC
Mine balances with the 2 A123 flight packs about 2 cutouts aft of the tube in the 1st "bay" behind that is the reciever and behind that the 2 rudder servos.
Ignition was mounted behind motor box and 1 A123 next to the tank.
I have a CF spinner so you would need to allow for that.
The flight packs are easily moved forward or back, Ist flight I put them a little forward and then after that moved them back 3" once I knew how it flew/landed so Im on the aft of the tube now.
Ignition pack is now back against the tube since I took these
You can see 1st flight reciever pack site in one photo, and the one with them even is the current place.
Ignition was mounted behind motor box and 1 A123 next to the tank.
I have a CF spinner so you would need to allow for that.
The flight packs are easily moved forward or back, Ist flight I put them a little forward and then after that moved them back 3" once I knew how it flew/landed so Im on the aft of the tube now.
Ignition pack is now back against the tube since I took these
You can see 1st flight reciever pack site in one photo, and the one with them even is the current place.
#62
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From: Suffolk,
VA
yeah from the amount of space in the bird and wire length even with an extra few ounces with an aluminum spinner i dont think balance is going to be hard to achieve at all specially with that lightened back plate(went with a tru turn)MPI was not cutting it for me . Not much done here tonite just mounted my rudder servos.
#63
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From: Tulsa, OK
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
The alternative would be to go with 2 ea per wing 5985s.
Batteries. Not going the A123 route just yet. Will 2 2600mah packs for the servos and 1 2600 for the ignition be plenty?
And also, what length extensions and how many do I need?
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
The alternative would be to go with 2 ea per wing 5985s.
Batteries. Not going the A123 route just yet. Will 2 2600mah packs for the servos and 1 2600 for the ignition be plenty?
And also, what length extensions and how many do I need?
#64

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From: APO,
AE, GERMANY
Yeah two per wing IS overkill. If you have them then go with it bro. You will have really responsive ailerons. This plane and the 41% demand strength on all their flying surfaces. They are large and very responsive. Yes you could go with a slightly less expensive servo but why?
I found out on my 41% even with 5955's I was getting some blow back. This is an area no to cheap out on. It could potentially lead to dangerous situations in flight.
I found out on my 41% even with 5955's I was getting some blow back. This is an area no to cheap out on. It could potentially lead to dangerous situations in flight.
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From: Tulsa, OK
Once again, thanks.... I hate having a feeling of what to do, then questioning it. Tom has the 5985s packaged with the deal on the WH webpage, so I thought I would ask.
Right now the gear kinda looks like this:
Smart Fly PE EQ10 (found a deal on one)
Smart Fly Turbo Reg
Badger switch for ignition
Wolverine switch for receiver batteries
2 2600 Mah for RX
1 2600 Mah for Ignition
Smart Fly Ignition Regulator
6 5955s for Ailerons and Elevators
1 8711 for Rudder
1.5" SWB arms for ailerons
2" SWB arms for elevators
Sound like a decent set up?? Still havent pushed the buy now button.... hahaha
Right now the gear kinda looks like this:
Smart Fly PE EQ10 (found a deal on one)
Smart Fly Turbo Reg
Badger switch for ignition
Wolverine switch for receiver batteries
2 2600 Mah for RX
1 2600 Mah for Ignition
Smart Fly Ignition Regulator
6 5955s for Ailerons and Elevators
1 8711 for Rudder
1.5" SWB arms for ailerons
2" SWB arms for elevators
Sound like a decent set up?? Still havent pushed the buy now button.... hahaha
#66
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From: Suffolk,
VA
ORIGINAL: Sukhoi4Me
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
The alternative would be to go with 2 ea per wing 5985s.
Batteries. Not going the A123 route just yet. Will 2 2600mah packs for the servos and 1 2600 for the ignition be plenty?
And also, what length extensions and how many do I need?
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
The alternative would be to go with 2 ea per wing 5985s.
Batteries. Not going the A123 route just yet. Will 2 2600mah packs for the servos and 1 2600 for the ignition be plenty?
And also, what length extensions and how many do I need?
2 36 on elev
2 36" outer wing servo
2 24" inner
1 18" throttle
none for rudders
also will need 2 Y's for wings just program and hook em up
i would check out the videos on down on the deck on geometry and programming good stuff note on the wing servos tom is using 985's on his i believe he said they are fine so 5985's would be plenty
#68
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From: Tulsa, OK
Exactly what I was thinking Sailing.... Good morning.. You ready for the crappy weather to return?? I am not.. I need a run of good windless weather....
#69
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From: Suffolk,
VA
ORIGINAL: sailing1
You shouldn't need a "Y" for the dual aleron servos if you use the ports on your Smart Fly.
You shouldn't need a "Y" for the dual aleron servos if you use the ports on your Smart Fly.
#70
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From: Flower Mound (near Dallas),
TX
ORIGINAL: Sukhoi4Me
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
I am using 985s which are plenty and the analog servos make it less significant if I have a slight linkage misalignment, which I do not, they are set up perfectly. The way to test this is as follows. Leave the screw that holds the ball link to the servo arm a litle loose on 1 of the servos. Turn on the power so you can work the controls from the transmitter. The one that is loose should still be loose at center and at both end points. If it has bound up at any of these three points then your linkage needs to be adjusted.
Once you finish this test don't forget to retighten the screws.
The alternative would be to go with 2 ea per wing 5985s.
Batteries. Not going the A123 route just yet. Will 2 2600mah packs for the servos and 1 2600 for the ignition be plenty?
Li-Ions through a regulator will never have the oomph of an A123 directly wired. What you have will fly the plane fine, but I'd bet you are losing a little servo performance at very high loads. IN other words I'd bet it will snap differently with better power supply. Other than that what you have should work fine.
And also, what length extensions and how many do I need?
4x 24" 2 for outer ailerons and 2 for throttle/choke
2 x 12" for inner ailerons
2 x 12"Y connect to receiver to have a place to plug in ailerons
Your use of the power expander may change this.
TF
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From: Flower Mound (near Dallas),
TX
ORIGINAL: rctom
Yes they are overkill but not by a lot. They certainly won't hurt anything, and for $20 each over the 5985 ($36 over a 985) if you can afford them then use them.
I am using 985s which are plenty and the analog servos make it less significant if I have a slight linkage misalignment, which I do not, they are set up perfectly. The way to test this is as follows. Leave the screw that holds the ball link to the servo arm a little loose on 1 of the servos. Turn on the power so you can work the controls from the transmitter. The one that is loose should still be loose at center and at both end points. If it has bound up at any of these three points then your linkage needs to be adjusted.
Once you finish this test don't forget to retighten the screws.
Or 2 ea 985s, same power as 5985, cheaper, and more forgiving of a slight misalignment. Just use less expo to get the same feel as 5985.
Enough? probably so. Plenty? No.
Li-Ions through a regulator will never have the oomph of an A123 directly wired. What you have will fly the plane fine, but I'd bet you are losing a little servo performance at very high loads. In other words I'd bet it will snap differently with better power supply. Other than that what you have should work fine. Note "differently" does not always mean "better". It's possible to aggravate a problem of over-controlling by adding more power capability. Of course you can always back down from too much throw, it's always better to have the power available.
2x 36" for elevators
4x 24" 2 for outer ailerons and 2 for throttle/choke
2 x 12" for inner ailerons
2 x 12"Y connect to receiver to have a place to plug in ailerons
Your use of the power expander may change this.
TF
ORIGINAL: Sukhoi4Me
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
Getting ready to order the gear for the Extra and I need some opinions.
I am wondering if 2 each per wing 5955s are overkill? I currently have 1 ea on my 50cc Sukhoi.
I am using 985s which are plenty and the analog servos make it less significant if I have a slight linkage misalignment, which I do not, they are set up perfectly. The way to test this is as follows. Leave the screw that holds the ball link to the servo arm a little loose on 1 of the servos. Turn on the power so you can work the controls from the transmitter. The one that is loose should still be loose at center and at both end points. If it has bound up at any of these three points then your linkage needs to be adjusted.
Once you finish this test don't forget to retighten the screws.
The alternative would be to go with 2 ea per wing 5985s.
Batteries. Not going the A123 route just yet. Will 2 2600mah packs for the servos and 1 2600 for the ignition be plenty?
Li-Ions through a regulator will never have the oomph of an A123 directly wired. What you have will fly the plane fine, but I'd bet you are losing a little servo performance at very high loads. In other words I'd bet it will snap differently with better power supply. Other than that what you have should work fine. Note "differently" does not always mean "better". It's possible to aggravate a problem of over-controlling by adding more power capability. Of course you can always back down from too much throw, it's always better to have the power available.
And also, what length extensions and how many do I need?
4x 24" 2 for outer ailerons and 2 for throttle/choke
2 x 12" for inner ailerons
2 x 12"Y connect to receiver to have a place to plug in ailerons
Your use of the power expander may change this.
TF
#73
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From: Suffolk,
VA
By using the 36" and 24" on wing i am able to keep the y harness wired into the reciever and just hook the 2 servos up to the y that way i dont have to fumble in the hot sun trying to get the wings hooked just my $.02
#74
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From: Suffolk,
VA
ORIGINAL: marzo91
Tom, do you use the Hitec programmer, or do you do the set-up manually and with the radio? Thanks!
Tom, do you use the Hitec programmer, or do you do the set-up manually and with the radio? Thanks!
#75
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From: Flower Mound (near Dallas),
TX
ORIGINAL: marzo91
Tom, do you use the Hitec programmer, or do you do the set-up manually and with the radio? Thanks!
Tom, do you use the Hitec programmer, or do you do the set-up manually and with the radio? Thanks!
I do not like to rely on electronics to correct things that I should have done right in the first place, proper mechanical setup is always the most important part.
Using the programmer can't hurt, getting the servos exactly the same is part of the mechanical setup IMHO, I just don't like the programmer because I find it cumbersome and time consuming. If you have the patience by all means make the servos match with the programmer before starting other setup. But I never found enough variance from servo to servo that I could not compensate for it in other ways.
And do not try to use the programmer to compensate for improper linkage geometry, First get the servos right, then get the linkage set up to work right, never the reverse.
Remember we are dealing with a model airplane here, not an automatic transmission. A misalignment of a couple thousandths of an inch here and there will immediately disappear in all the other mechanical flexing under flight loads. If you could get in there and start measuring everything while the plane is flying you would find all these minute adjustments changing wildly every time you move the surfaces.
TF


