RE: 67" ARF Fusion Problems  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> Profile and Fun Flying Planes >> OMP - Ohio Model Products Support Forum >> RE: 67" ARF Fusion Problems
Page: <<   < prev  1 [2]

Login
Message << Older Topic   Newer Topic >>
RE: 67" ARF Fusion Problems - 2/1/2008 4:02:18 AM   
Jeffro


 

Posts: 77
Joined: 8/22/2002
From: Hamilton, OH, USA
Status: offline
quote:

ORIGINAL: spenser

Building the 67" Fusion and I have a question. Is the Saito 100 engine big enough to pull this plane?

I used it on the Katana 70 and it did a good job, but the Fusion is a little heavier. I do have a 120 if it

would be better????

Spenser



A 100 is not enough for what this airplane needs. A Saito 120 or 125 would be MUCH better. I have seen one fly with a 100 but it was definitely NOT 3D capable with that engine.

(in reply to spenser)
       Post #: 26

RE: 67" ARF Fusion Problems - 2/1/2008 8:01:43 AM   
AKFireMedic



Posts: 806
Joined: 2/2/2004
From: Anchorage, AK, USA
Status: offline 		I would say that the 100 will fly it fine but not 3d it well. It may hover with the right prop but you wouldn't have much left. Most folks are using the saito 125 on that bird.

_____________________________

Da** it feels good to be a Pro Bro

(in reply to Jeffro)
       Post #: 27

RE: 67" ARF Fusion Problems - 2/5/2008 6:15:13 PM   
spenser


 

Posts: 2
Joined: 6/25/2005
From: , IN, USA
Status: offline 		Anybody......Has anyone used the Saito 100 on the 67" Fusion..???????????????

How does it do, is it big enough????

Spenser

(in reply to spenser)
       Post #: 28

RE: 67" ARF Fusion Problems - 2/6/2008 12:49:06 PM   
AFSalmon



Posts: 3742
Joined: 5/24/2002
From: Beavercreek, OH,
Status: offline 		I agree with the above. The Saito 100 is not a bad engine, I run one on my 50" Ultimate profile and love that combo. That plane weighs under 6 1/2 lbs though. The Saito on 20% fuel is probably close to the power of a .91 2s engine so yes it would work on the Fusion but it would not give you the balistic pullout we are all used to now. I would say if you already have the engine give it a try and let us all know how she does. You could always upgrade the engine at a later date.

_____________________________

Mike (Salmon) Pilkenton, Chief Slab Designer
Ohio Model Planes, Team OMP Captain

(in reply to spenser)
       Post #: 29

RE: 67" ARF Fusion Problems - 2/9/2008 12:11:54 AM   
TJR1



Posts: 271
Joined: 3/20/2007
From: Mobile, AL, USA
Status: offline 		Well, my nerves have calmed down now. I maidened my 67" Fusion today. On the first flight, I thought I had a glitch (72 Mhz, Futaba 9C) right after take-off so I quickly killed the engine for a deadstick landing, right into a big water puddle . On the walk back to the pits, I realized I forgot to extend my antenna( Dope!). OK, take a few deep breaths, calm down, try it again. Second flight. Takeoff is smooth, ascending left turn to downwind, throttle back to 3/4 throttle. I think I'm a little nose heavy (O.S. 1.20AX up front), I'll have to move the battery back some. Start the left turn to base and final. What the? The rudder is fluttering around like mad! Flutter? Slop? Broken hinges? Quickly throttle back, do a 360, and make a deadstick landing to the runway . The rudder is on solid, the linkage has no slop. What's wrong? I've got Futaba S3151 Digital Servos all around, except Throttle. Am I just not getting enough holding power out of that servo? What are y'all using? I'd like to have it solved by tomorrow so I can fly all weekend. The weather is going to be perfect !

_____________________________

Check your six... I might be on it!
AMA#: 741093 Member: Azalea City Model Aeronautics

(in reply to AFSalmon)
       Post #: 30

RE: 67" ARF Fusion Problems - 2/9/2008 12:27:49 AM   
daveopam



Posts: 4359
Joined: 10/10/2002
From: ELK CITY, OK, USA
Status: online 		Sounds like a servo problem. I had a pair of 3151s on the elev of a 72" Yak. One was fine the other would bounce around center. everyone told me "it's just a digital servo thing,once it has a load it will stop". This was true enough. I could touch it while it bounced on the ground and it would stop. the problem was in the air. On a few knife edge passes I noticed it bouncing around. When I would level the wings it would get a load and quit. I thought it would be a stupid reason to loose a plane so I pulled the servo and sent it hobby services. They sent me a new one the next week. Problem solved.

David

_____________________________

"Choose your shirt and shoes by the color. Choose your friends by their character." unknown

(in reply to TJR1)
       Post #: 31

RE: 67" ARF Fusion Problems - 2/9/2008 2:16:45 PM   
TJR1



Posts: 271
Joined: 3/20/2007
From: Mobile, AL, USA
Status: offline 		That sucks! I've got beautiful weather today and I don't have another servo for the rudder, unless I can use a standard S3004. I'm not too knowledgeable when it comes to the electronic side of things. Can I mix and match servos like that? The LHS doesn't carry the Futaba S3151, but they do carry other brands, and I'd still have to solder an extention to it.

_____________________________

Check your six... I might be on it!
AMA#: 741093 Member: Azalea City Model Aeronautics

(in reply to daveopam)
       Post #: 32

RE: 67" ARF Fusion Problems - 2/9/2008 2:47:40 PM   
daveopam



Posts: 4359
Joined: 10/10/2002
From: ELK CITY, OK, USA
Status: online 		If you limit the throw and give the servo all the mechanical advantage you can it will work. But how much fun will it be to fly with small rudder inputs? Can you rob a better servo from an Aile or something?

david

_____________________________

"Choose your shirt and shoes by the color. Choose your friends by their character." unknown

(in reply to TJR1)
       Post #: 33

RE: 67" ARF Fusion Problems - 2/9/2008 3:22:30 PM   
TJR1



Posts: 271
Joined: 3/20/2007
From: Mobile, AL, USA
Status: offline 		Does that mean I can't use another brands digital servo?

_____________________________

Check your six... I might be on it!
AMA#: 741093 Member: Azalea City Model Aeronautics

(in reply to daveopam)
       Post #: 34

RE: 67" ARF Fusion Problems - 2/9/2008 4:14:04 PM   
Johnny Mojo


 

Posts: 147
Joined: 2/9/2005
From: Bed Rock, USA
Status: offline
quote:

ORIGINAL: TJR1

Does that mean I can't use another brands digital servo?

Mixing and matching should be no problem at all. If you have another brand handy that will give you the power you need, don't hesitate to use it. Just make sure you do all the ground checks to ensure everything is working properly.

J.

(in reply to TJR1)
       Post #: 35

RE: 67" ARF Fusion Problems - 2/10/2008 4:05:37 PM   
daveopam



Posts: 4359
Joined: 10/10/2002
From: ELK CITY, OK, USA
Status: online 		If you have a different brand on hand go for it. I have several planes with JR and Futaba servos.

David

_____________________________

"Choose your shirt and shoes by the color. Choose your friends by their character." unknown

(in reply to Johnny Mojo)
       Post #: 36

RE: 67" ARF Fusion Problems - 2/11/2008 1:10:20 AM   
TJR1



Posts: 271
Joined: 3/20/2007
From: Mobile, AL, USA
Status: offline 		I bought two Hitec high-torque servos and installed them, and also purchased a 6 volt battery. I think (I hope) this will do the trick .

_____________________________

Check your six... I might be on it!
AMA#: 741093 Member: Azalea City Model Aeronautics

(in reply to daveopam)
       Post #: 37

RE: 67" ARF Fusion Problems - 3/11/2008 11:25:01 PM   
uragano47812


 

Posts: 22
Joined: 5/23/2006
From: udine, ITALY
Status: offline 		Ok i will post here. I'm building my new Fusion ARF. I have 4 Spektrum DS821 servos will they work well for aile and ele (2x)? In the tail i will use s9255 so with 4.8V system.

I have a 120AX with an APC 17x6, will it need some right adjustment like 2° or not?

Let me know thanks

(in reply to TJR1)
       Post #: 38

RE: 67" ARF Fusion Problems - 3/12/2008 2:38:43 AM   
AFSalmon



Posts: 3742
Joined: 5/24/2002
From: Beavercreek, OH,
Status: offline 		Yes sir, most planes require about 2-3 degrees right thrust. Profiles are no different. The other option that is popular with pattern flyers is to program a right rudder curve with throttle. I never tried that but I read an article where Chip Hyde discussed it years ago. Was supposed to be a "truer" means of correction and allows the aircraft to roll more axially.

_____________________________

Mike (Salmon) Pilkenton, Chief Slab Designer
Ohio Model Planes, Team OMP Captain

(in reply to uragano47812)