F-16WpnsTech

Haven't seen anything on the forums on this plane. Mine went together ok, but run into a balance issue. Instructions say 4.5cm from leading edge, but just doesn't seem right....MAJORLY tail heavy...have an OS .61fx up front. One thing that caught my eye is the leading edge of the servo tray is approx. 5 inches behind the wing tube with 2 servos for elevator and 1 for the rudder on it. Anyone else building/flying this plane?

F-16WpnsTech

Update: Spoke to a rep at Horizon and he said that the Seagull cg is measured at the wingtip and not the root. Any of you folks heard of such a thing on Seagull models?

gr8taz nitro

My Feedback: (7)

that's a pretty standard way to balance for a lot of planes. My QQ yak's cg was the same way.

hostile77

My Feedback: (1)

I have the 2008 version of this plane. (The darker blue one). Very nice plane. I put a ST .75 on it and broke it in this last weekend. Did a quick maiden flight which ended quick due to my canopy coming off in midair. Landed safely and found the canopy. No damage. I need to balance the prop next time! Trying to get the CG right. At first I had the battery slightly behind the wing tube, but now I'm going to mount it directly on the tube. I used the stock muffler to break it in, but I'm going with a pitts on friday hopefully. I haven't touched the cowl yet. It's too beautiful, don't want to cut it until i'm sure about the way I have the engine setup. I'll post picks and let ya know how the next flight goes....[sm=punching.gif]

F-16WpnsTech

Well, using the fingertip method at the wingtip it's still a little tail heavy, a few ounces up under the firewall and I should be o.k. I also have a 2000 Mah NIMH for juice, sitting right behind the firewall..had it laying around, plus I'm using some digitals for the stab and rudder that I had laying around. I never have been a fan of Seagull models, but this one caught my eye. The quality looks to be very good. Put the decals on last night. I'll try to get some pics to post. Hopefully maiden this weekend.

hostile77

My Feedback: (1)

Finally got the engine somewhat dialed in. A ST 75 really pulls this plane. Seems very solid in the air. With a 12x6 I have very nice vertical. Lovin this plane...[sm=drowning.gif]

hostile77

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Here's some pics of her on the stand...

Flying Low

My Feedback: (1)

I've got the older version of this plane. http://www.horizonhobby.com/Products...ProdID=SEA2025 I'm running an OS 91 4 stroke on mine. I still had to place my receiver battery on the back side of the firewall to get it to balance. I'm the 2nd owner, and have had the plane for a couple of weeks now. I'll try to post pictures later this week.


Adam

daveamt

My Feedback: (1)

Anything new on this plane? They look nice. I have not seen to many comments though

Stormlord

I have this plane and could use some help with it.  It has an O.S. 91 two stroke in it, which should pull it around great, but the vertical is disappointing.  It slows down very quickly on the 15x4 and 14x6 props I've tried, and always falls off to the left, regardless of rudder position.  The elevator has shown some interesting problems as well ... full elevator at recommended throws makes the right wing dip severly.  Only way I've found to correct the problem has been to reduce the elevator throws, but now, of course, there is no authority in the elevator ... surely not enough to try a hover, but the rudder isn't that great for something like that either.  Definitely NOT a 3D plane.  Anyway, I'd love some advice on getting rid of the wing dip to get some authority back into the elevator, if anyone has some ideas about that.  Also, thinking that a .91fx should give me unlimited vertical, I'm curious what is wrong there .... wrong prop selection?  This plane should not be too heavy ... it's a .75 size!   One thing ... I have noticed that there is a slight warp of the left wing at the tip, as measure with an incidence meter, of about 2 degrees.  The wing starts fine at the fuse, and the further you get towards the wing tip, the worse it gets.  I'm going to try to take that out with some covering magic, but I seriously doubt that is the cause of my problems.  Of that, I can let you know when I try it.

sledgehammar

If I,m not mistaken, i believe the varience at wingtip regarding your incedence is a built in design that pertains to the washout in a wing. It has to do with the lift.

rsecky

this is my third plane and i think that it is great. it has enough rudder to knife edge loop and it will hover. but it is not a 3d weapon, but looks wicked.

Stormlord

What is your setup? (engine?, throws differ from manual?, change anything from standard?)

I'm still having problems with this plane .... it still dips the right wing if I pull back on the elevator stick too much with elevator at the manual's throws.
It always falls off to the left as it approaches a hover, when I climb straight up, no matter how much right rudder I apply.
Its tendency to do its own thing when expecting something different is going to make me crash some day......

What upsets me the most about it, is that I have a flying buddy who has both the 1.6 Great Planes Extra, and a .40 size Great Planes Extra - I've flown them both and they are great ... they do exactly what I would expect. But not this Seagull .... I'm considering scrapping it and moving the engine, radio, and servos to a new plane.
In some cases, it appears you really do "get what you pay for".

friessen

Stormloard-

Have you tried to use a 14-4w APC? I used a 15-4w and had less than expected proformance from mine, but with the 14-4w it really seemed to change the torque factor and gave moe r.p.m. for rudder athority.

Stormlord

I haven't yet ... I will be trying out a 14-4W, a 13-8, and a 13-6 on my next outing. I'll let you know if they help....

tom_sandiego

Hi,
I just completed built the Seagull 300S and have a question about the balance point I had .91 Magnum 4 stroke in it and followed the instructions said 4 cm from the leading edge to balance but tail still heavy even i moved the battery, RX next to gas tank. 4 cm is little over 1.5 inch. I never see the balance point that close to the leading edge. I wonder that 4 cm at the wing tip. Please let me know what is correct point.

Thanks, Tom

tom_sandiego

I got it 4 cm from the wing tips, Thanks

Kostas1

Guys,

could you please post more pics?

RACJ

Stormlord, balance the plane laterally(side to side). Should cure falling off left if not use heat gun to straighten wing but balance lateral first. Actually,call Horizon before straighten wing but I'll bet no washout built into wing on purpose but call their service department. Thats what they are there for and service is what you paid for.Too much prop for OS91FX and for good 3D you'll need more engine.