Kaoma

My Feedback: (4)

Here is the new Seagull Edge 540 (68") w/OS .91fx spinning a MAS 14X8 prop at 9500 PRM. Ther maiden flight was OK, very stable and easy to fly.

captinjohn

That Edge sure does look nice. Looks like it could be a good trick plane. Must be a lot of fun to fly her! Smooth landinfs. Capt,n

tailskid

My Feedback: (34)

Nice looking bird.....hope it flys like its order and smaller 'brother'

Chris-_-Memphis

My Feedback: (3)

nice looking bird...hope to hear a flight report soon! get flying!!!!!!

les40

My Feedback: (1)

That's a nice looking Edge! It's interesting that your OS 91 FX is turning a 14X8 prop at 9500 rpm and the engine only weighs something like 19.6 oz. My Saito 100 4 strk turns the same prop at a usable rpm of 9000 (using 30% nitro) and weighs 20.9 oz. I guess 2 strks still have the edge when it comes to performance.

wraith0078

My Feedback: (2)

Well, I was going to start a new post for my own, but I'll just jump in yours.

Here's mine with a Saito 125. Swings an APC 17x4W at 9100 RPM. I haven't gotten a chance to maiden her yet, as the weather in Des Moines isn't cooperating.

I really like the stripes you put on the bottom of your wing. I may have to do that. What other changes did you make? I see you've got different landing gear than I do....

Kaoma

My Feedback: (4)

FLIGHT REPORT:

The Edge is mostly stock but with a few mods as:
- three servos on the tail w/H9 Titanium links and Du-Bro safety clevises.
- inside the fuse I put a rocket fuse tube (paper) to route the servo wires through it as opposed having them loose. Also it helps with the strength of the fuse.
- replaced all the hardware with my own.
- the landing gear is FG from a Katana S140 and its heavy and very rigid (if you can/have put a CF landing gear on it). The stock aluminum provided I didn't like and not even try it on.
- the engine is OS .91fx w/MAS 14X8 prop spinning at 9475 PRM static BUT! I have removed the baffle and put 4 holes through it to let the engine breath better.
- replaced the stock fuel tank with a 420cc (16oz) one.

MAIDEN AND AFTER FLIGHT: (with problems)
- plane dry ready to fly - 9 1/4 lbs.
- MAS 14X6 at 10300 static - it pulls the plane OK but I would like more speed...most of the time I have WOT to fly it. Had 4 flights like this for 15 min each.
- MAS 13X8 at 11400 static - it has more speed but not power. It fly OK at 3/4 throttle and had 4 flights on it like that.
- MAS 14X8 at 93-9400 static - better that before and it flies OK at 1/2 or 3/5 throttle.

HERE IS THE THING:
- the manual recommends the CG at 100mm (10cm) and in this set up the plane is TAIL heavy. In my case the best CG is at 700mm (7cm).

ENGINE:
- If you can, get a bigger engine that .91 or like. This plane would fly good with a OS 1.20AX or bigger (if you like speed). In my case the engine is NOT enough for my taste and I have a ton of problems!!!
As I said, the plane flies good WHEN it flies.... so far I NEVER got on the ground under power. Last fight (#12) I broke off the landing gear (not enough flex in it) from loss of air speed. 99% of the landings were emergency DEAD STICK.
The engine runs PERFECT on the ground and in the air till it reaches 1/2 tank at which point it dies. Seams that the tank is too big (too much volume) for the .91 and it does not have enough pipe pressure and suction power pass the 1/2 volume. Needle settings does not help, nor different fuel tube sizes. Last hope it to but a Perry pump (VP 20 or VP 30) on it to help it with the fuel flow. If this does not work, I'll have to sell/trade the .91 and get a bigger one. I have an OS 1.60fx at hand but its WAY TOO much power and also its too heavy.
Till then the plane is resting in the hangar...

MinnFlyer

My Feedback: (4)

I just finished a review of this plane (Not posted yet) And my overall impressions are very good. I'm flying it at the 100mm mark and it does seem a little tail heavy, but it is one terrific flier.

My brother liked it so much that he wanted to buy one. He asked me, "So what do they get for it... 3 or 4 hundred dollars?"

When I showed him the web page that said $175, he ordered one on the spot!

BTW, I used a Saito 100 for the review, that flew it very well, but a 125 or YS 110 would really be nice. And it can handle the weight because with the 100, I had to add about 5 or 6oz to the nose (and it's STILL a little tail-heavy)

Stamper

My Feedback: (9)

Mine flys like a champ with the Magnum 1.20 4 stroke. It was still very tail heavy but after adding nose weight it is very predictable and lands great. The 1.20 and an APC 15x6 prop the plane is quick and has plenty of power. The price was right too. I even used all the stock equipment to set it up.

AbuAnas

Will this plane fly 3D??

Thank you ..

MinnFlyer

My Feedback: (4)

3D is OK with a Saito 100. A YS 110 would be killer

fishgod

My Feedback: (13)

Actually the 91fx weighs 19.42oz without muffler . With the stock muffler you are looking at around 24.3

wraith0078

My Feedback: (2)

Snuck out of work at lunch time today and maidened mine.

Take off was fine. I've got it balanced just a shade tail heavy. All she needed for trim was two clicks of up elevator.

I seem to be developing a tendency to maiden airplanes on rainy, slightly windy days.

Took it up for a second flight. With the Saito 125 and APC 17x4W, it will hover at about 1/4 - 1/3 throttle. Seems like it'll climb forever.

This Edge replaced my crashed Aeroworks .46 - .60 sized with OS .61FX. I don't know if it's the extra power or what, but the Seagull seems to be so much easier to pull off even basic 3D stuff with. Maybe just because it's bigger. All in all, after just two flights, I'm already in love with this plane.

Stamper

My Feedback: (9)

Mine is probably a little bit nose heavy, but I like the way it handles better. This is my mini edge with the magnum 1.20. This weekend I get to maiden my 87 inch Lanier Edge with a ZDZ 50. It is replacing my BME edge after the engine quit during a low inverted pass with smoke on. [:@]

DrtJnky

The problem that was previously brought up about the plane flying great untill the 1/2 tank mark is probably due to the modification of the baffle system. That mod allowed a higher cfm rate which on a given output engine equals less pressure and that is what passes through the nipple to the tank?

Stamper

My Feedback: (9)

I'm not sure a few holes in the baffle would cause the engine to lose enough pressure to pull fuel unless the tank is far away from the engine and lower than the carb. In this case you may need a pump. Tank size should not matter. I would double check the tank seal and make sure there is no hole in the fuel pickup line within the tank. Is the engine quitting from being too lean? Is it overheating? I have trouble believing it is due to the baffle. Are you using an easy fueler valve? Those leak after some time.

Kaoma

My Feedback: (4)

The baffle mods have nothing to do with the engine running OK for 7 oz (1/2 of the tank). The tank is 420cc or 14oz and the middle of the tank is at the middle of the carb at 2 1/2 in away from the high needle.
There is something I should have known but here it goes:
- the muffler volume is 7 1/2 oz and volume for volume, it can presurize a tank of 7-8oz, max 10oz. After that, the volume left in the tank from the carb sucking the fuel is greater than the volume the muffler can fill to balance the void...not to mention creating presure to push the fuel to the carb. After a few runs on the ground (without the cowl) I have observed the fuel being sucked back into the tank when the engine stopped. Also when I have opened the fill-in line there was a sucktion noise of air and not preasure going out (to double check for this I have filled a plastic cup with fuel and removed the fill-in line in the cup...the fuel went UP the line...)
A second test I did was to remove the muffler line and hook a baloon to it (beat up a kid and stole the baloon from him). With the baloon inflated and the tank full, the motor ran for 23 min for the whole tank when there was presure.
At this point I had a few options:
-install a smaller tank...to much to modify - lazy!
-fly with a party baloon hooked up to the plane...
-buy a Perry pump for $30+ and pary
-sell the OS .91FX and get somethin else (needed more power anyway)
well
I have sold the OS .91FX and got a OS 1.08 FSR for $250 (new). Now I will replace the 420cc tank with a 10oz one and modify the fire wall, cowl, throttle link etc but I wil have more power for the plane. I will spin a MAS 15X8 or a MAS 16X6 prop.
More reports soon.

stratosman

My Feedback: (13)

I have been flying my edge for about 2 weeks now and I love it I am using a 100 sato and have plenty of power for 3D.I got away from adding weight to the nose by moving the rudder servo up front and making it a pull-pull set up and it works great.I also threw away that small tank and put in a 14oz round tank and it fit with very little modification.before I got about six minutes a flight now I get an easy 12 minutes.The next thing I will change is the landing gear, it is crap... For the money it is a pretty good plane.

DrtJnky

The baffling may not be your problem but it is a common problem when installing pitts mufflers on some engines and modifying exhaust. Your theory on the size of the muffler having anything to do with this is incorrect as the engine constantly pressurizes it.

Stamper

My Feedback: (9)

This is a very common problem and a few chices would be to plug one of the pipes or install a pump.

Kaoma

My Feedback: (4)

Since the OS .91FX is gone, the OS 1.08 FSR took its place. I had to make some small changes to the firewall and also removed the 14oz tank along with the heavy wool panels that was holding it in place. The new tank (stock) is 10oz and fits much better (with my changes)
The tank is 1/8in (center) over the center of the carb and the fuel line is only 2in long. Hope this will cure the 1/2 tank death...The prop is MAS 15X8 and I have a MAS 16X6 as well, and for fuel I will be using Cool Power 10%. Only thing left is the throttle linkage and the cowl mods for the bigger motor. Here are some pics.

Flying Geezer

My Feedback: (14)

Maidened mine today. Saito 125 with Perry oscillating pump. Lots of vertical with an APC 16X6, but too fast in level flight. Will switch to a 16X4 or 17X4. Handled nice after trimming, lands slow and smooth, no bad habits.

Kaoma

My Feedback: (4)

Too fast with a 16X6 prop? Mine was being left in the dust by ANY trainer and I was spinning a MAS 14X8 prop!!!
Did not fly it with the new OS 1.08 motor but I did run 5 tanks of fuel through it today...what a difference!
The motor has a lot of power with a MAS 15X8 K turning at about 8500-8800 static with Cool Power 10%. Will try the Cool Power 15% next time and a MAS 16X6 prop.
The good news is the motor was running at the same RPM to the VERY last drop of fuel in the tank...no more quits at 1/2 of tank.

Tesla1856

wraith0078,

Your Edge 540 looks good.

It has already been suggested I put the 125 in mine, so now I'm thinking about a Saito. Maybe the 100 (cheaper and not sure I need all the power of a 125) but it's nice to see that the 125 fits with no problems. After seeing yours ready to go like that pushes me a little closer to the 125. Is that the stock Saito pipe and did you install a fuel pump?

I would also be interested in knowing what servos and on-board battery you out-fitted the plane with.

I started a thread for mine here:

Seagull Edge 540 - 68" (60-90) ARF New v2- Building

http://www.rcuniverse.com/forum/m_43...tm.htm#4303162

Tesla1856

Stratosman,

I'm just starting on mine, and haven't decided on an engine and servos yet so your post was some good info. for me.

So, you are running the Saito 100 (in it's downward 8 o-clock factory setup position) with a 14oz tank but WITHOUT a pump? I was wondering about the stock tank myself. It looks just a little bigger than the tanks I use on my .46 planes.

Yes, a one piece gear and maybe some larger rubber wheels might be in my Edge's future. I guess the supplied pants could be Dremeled out a bit or just left off.