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RE: Seagull Yak? - 6/7/2012 2:42 AM   
lopflyers


 

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Thx navypoe

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RE: Seagull Yak? - 6/9/2012 10:30 PM   
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new update, for all of you who said

i told you so,

here is the bottom line

today, plane flew fine on first flight.


i heard something funny and brought plane down. smooth landing.

i turned engine on, and the rear muffler spout was spinning over its screw.  i tightnened it

and took plane off again, this time, i used high rates for elevator only.


after three tight turns, plane began to act funny,

the wings were fluttering

and then when i brought power down, plane fell from sky like a pancake.


it is toast


i saw that on one aileron servo, the screw came off,

so it appears i lost one control surface, and this was cause of demise


no matter what

plane was way over powered with the OS BGX 35 cc glow 2 cycle engine


it was fun while it lasted.


anyone have any suggestions on a bird i could put this engine in?




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RE: Seagull Yak? - 6/10/2012 12:42 AM   
lopflyers


 

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What????? I'm sorry you lost your plane. I still think that is too much engine for this airframe.
Maybe that caused the flutter


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RE: Seagull Yak? - 6/10/2012 3:05 AM   
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yes
no doubt.

that plane was a screamer for the three flights it had.


i can say this, i have learned my lesson

everyone else says it

a bigger engine does not necessarily mean, it will be faster and better.

so

from now on, i will stick with engines recommended for the plane,
and

after i read reviews on plane, i will choose engine.


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RE: Seagull Yak? - 6/10/2012 5:16 AM   
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Sorry for your loss.....mine is still flying great. I am into my second season with her and the Saito 180 is a puuuurrrrffffect match for this airframe.

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RE: Seagull Yak? - 6/11/2012 4:16 AM   
orthobird


 

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confucius says:
panty not best thing in the world
but next to best thing in the world


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RE: Seagull Yak? - 6/11/2012 5:11 PM   
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I got the same bird w/ a DLE 20 in it. Havent flown it yet, been too windy here. Remember this is a .90-sized bird. You essentially put 4 times the recommended engine in it. My friend just yesterday flew his G.P. Sukhoi giant scale & it had more than enough power with the same motor.Sorry, but for me, i dont have "disposable planes" like that.

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RE: Seagull Yak? - 6/12/2012 12:21 AM   
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Ohhhh, I feel so much better, after about 1 month of no flying due to a combo of factors ( work, rain, rain, work) I finally flew four flights today.
Of all my planes guess which one I flew?
Yeah my Yak. Flew great, shr forgave me in the first landing, due to rust it was rough, but she took it w/o a scratch. 
All the other landings were good.
I hope is not going to be another month before I get to fly her again


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RE: Seagull Yak? - 9/20/2012 3:00 AM   
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I need help with the throttle linkage on this Yak with a DLE 20. To date my efforts to reslove this problem just don't meet my standards (just to much of a perfectionist I guess). With the gas tank in the stock location and the throttle servo mounted on the left side of the fuse, just behind the wing tube. The Golden Rod (red version) I plan on using for the throttle linkage has to snake around the tank to make it to the throttle location on the DLE. The bends I have to make in the Golden Rod violate the minimun bend raidus of the product & make the movement of the linkage somewhat stiff. And ther ain't a whole lot of room behind the fire wall

Any help or suggestions for a solution would be greatly appericated, more so if they include pic's

Thanks
sled

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RE: Seagull Yak? - 9/20/2012 4:27 PM   
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sled

My Yak has the DLE20 and I use the red Sullivan semi flexible nyrod as you describe. After the tube goes through the engine box it faces the hole in a vertical glued plywood plate which supports the front of the fuel tank. I ran my nyrod to the outside of that plate and then over the top of the wing tube to the throttle servo. My throttle works fine with no binding. I may put a dab of glue on the nyrod where it lays across the wing tube just to keep it a tad stiffer.

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RE: Seagull Yak? - 9/21/2012 8:49 PM   
sled


 

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Indiomike

Thanks for the idea and the pisc. Time to get busy on the interio of the Yak!

sled

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RE: Seagull Yak? - 10/25/2012 3:04 PM   
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Make sure your Yak is reliable engine. This model is fine when under power, when it loses power it becomes a flying brick. 3 of them at our club and all are no longer with us after the first dead stick (seasoned pilots). If your engine quits do yourself a favor , nose it down and go straight into the ground, make it spectacular....... dont try to save it the end result will be the same anyway. It will stall bad on you and there little chance of saving it unless you have a lot of altitude and a lot of luck and a lot of skill. And you will need all three to make it back.

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RE: Seagull Yak? - 10/25/2012 3:44 PM   
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quote:

ORIGINAL: gade600sdi

Make sure your Yak is reliable engine. This model is fine when under power, when it loses power it becomes a flying brick. 3 of them at our club and all are no longer with us after the first dead stick (seasoned pilots). If your engine quits do yourself a favor , nose it down and go straight into the ground, make it spectacular....... dont try to save it the end result will be the same anyway. It will stall bad on you and there little chance of saving it unless you have a lot of altitude and a lot of luck and a lot of skill. And you will need all three to make it back.



Not my experience. I did lose mine attempting to do a rolling circle on take-off ( another jughead move on my part ), but it would fly in on a dead-stick. It only weighed 9.5 after a diet. Yes, you need to keep a constant even decent, but it is easily doable. The airframe has to be balanced correctly or your doomed but that goes with most airframes. I had three different engines on mine ( Saito .91, Evolution 1.20 and finally a DLE20 ). Had successful dead-sticks with all of them.

Keep the weight down and relax and enjoy it.

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RE: Seagull Yak? - 10/25/2012 4:11 PM   
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Mine deadstick with a Saito 100, w that engine to reach the CG I had to add a lot of lead to the nose because it was very tail heavy. I landed it without problems.
Now it has a TT 120, it balanced with no extra weight. It is a lot faster and funner to fly. I have 9 planes RTF and this is my prefered, by the looks in the pitts and the performance in the air.


 

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RE: Seagull Yak? - 10/25/2012 11:03 PM   
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quote:

ORIGINAL: gade600sdi

Make sure your Yak is reliable engine. This model is fine when under power, when it loses power it becomes a flying brick. 3 of them at our club and all are no longer with us after the first dead stick (seasoned pilots). If your engine quits do yourself a favor , nose it down and go straight into the ground, make it spectacular....... dont try to save it the end result will be the same anyway. It will stall bad on you and there little chance of saving it unless you have a lot of altitude and a lot of luck and a lot of skill. And you will need all three to make it back.


Not my experience, at all. I have owned three of them, the first with a balky RCGF 26 that quit repeatedly before the ignition gave out totally. It was a surprisingly excellent "glider'. same engine later shed the prop driver, prop and spinner in flight causing severe tail heavy condition, and the plane was landed with no further damage.

If you have experienced bad dead stick flight, it's not the fault of the airframe. Look elsewhere.



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RE: Seagull Yak? - 10/25/2012 11:21 PM   
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Yeah...Do not just nose dive it in the ground if the engine dies. I have a ST 2500 on mine with 4oz tail weight added. If you have it balanced right it will glide just fine.


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RE: Seagull Yak? - 10/26/2012 1:03 AM   
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I have a DLE 20 on mine, and one of my buddies had a DLE 30 on his. We both had several deadsticks before we got the engine dialed in, and never had a problem landing. I still have mine, while his was eventually lost to flutter

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RE: Seagull Yak? - 10/26/2012 1:13 PM   
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In my opinion, Yak's are a little vulnerable to sharp rolls when landing cross wind. I don't see it as tip stall but rather a sudden roll induced by wind hitting the generous vertical stab and canopy/aft deck. Three feet off the deck is quite unappreciated. My reason for not thinking they are tip stalls is that a quick response will roll it back level. If a wing had stalled, I don't think it would be recoverable.

I've saved mine several times by quick response to such sudden rolls just above the deck and now with a seeming understanding of what is happening, I now avoid flying during gusty cross wind conditions and take the stick rather than the Yak.

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RE: Seagull Yak? - 10/28/2012 9:02 PM   
raydar


 

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 lol this plane floats in deadstick at 10 pounds 8 oz with dle 20. dont just ditch it if you deadstick, go have your lunch till the plane losses altitude then come back and land it.


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RE: Seagull Yak? - 11/10/2012 10:07 PM   
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Great thread,read all 61 pages of it. Going to put a Zenoah G20 that I have sitting on my work bench. mine is the Yellow and Black  model it will be a while before I get to it. Cheers: Rich

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RE: Seagull Yak? - 11/11/2012 1:24 AM   
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quote:

ORIGINAL: Sourkraut

Well, I have flown mine all summer with the Saito 180,18x6 MAS, weighing in at 9lbs 12ozs and she has performed flawlessly. Right from the maiden on, I have been impressed with this cheap little Yak. Very nice smooth aerobatics. I don't, and can't do 3D, so for my style of sport aerobatics, this is a great plane.

I am one happy camper

How do you think a Saito 1.50 would work on this airplane?  Thanks  Capt,n

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RE: Seagull Yak? - 11/11/2012 1:27 AM   
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quote:

ORIGINAL: Sourkraut

Sorry for your loss.....mine is still flying great. I am into my second season with her and the Saito 180 is a puuuurrrrffffect match for this airframe.

Did you beef up your airframe or use different hinges?   Thanks   Capt,n

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RE: Seagull Yak? - 11/11/2012 1:53 AM   
Sourkraut



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quote:

ORIGINAL: captinjohn


quote:

ORIGINAL: Sourkraut

Sorry for your loss.....mine is still flying great. I am into my second season with her and the Saito 180 is a puuuurrrrffffect match for this airframe.

Did you beef up your airframe or use different hinges?   Thanks   Capt,n



Yes the 150 will be fine....mine has gobs of power with the 180

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RE: Seagull Yak? - 11/11/2012 1:57 AM   
Sourkraut



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quote:

ORIGINAL: captinjohn


quote:

ORIGINAL: Sourkraut

Sorry for your loss.....mine is still flying great. I am into my second season with her and the Saito 180 is a puuuurrrrffffect match for this airframe.

Did you beef up your airframe or use different hinges?   Thanks   Capt,n



Yes, I beefed up the landing gear plate and the firewall with tristock/epoxy wherever I thought it needed it.
Still using the stock CA hinges and still holding in there BUT if I was putting another together I would probably go with Robarts or Dubro pinned hinges just because some others have been having trouble with the stock CA hinges.

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RE: Seagull Yak? - 11/11/2012 3:23 PM   
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SourKruat...thanks for the good advice.  Capt,n

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