Seagull Models Edge 540
 

Hi all,
I am currently building this model (Seagull 540) I am quite impressed with it.
Although, I am having a problem with the covering. Everything I have read so far says that the covering is perfect. This was true when I took it out of the box.
However, I am working in an unheated basement and since I have taken it out of the box, the covering has developed a good amount of bubbles. Has anyone else seen this. I have not hit it with heat yet and I am assuming this will clear it up, just wanted to see if there were any other suggestions before I hit it with the heat.

Seagull Models Edge 540
 

yep this is common with most covering easy with the heat.

Photos of improvments
 

Here is the link to the improvements that I made to mine. I installed elevator servos accross from each other also I did a pull pull for the rudder.
http://rcuniverse.com/showthread.php...895&forumid=57
there are about 5 picture I think.
Hope these help
Mark

Seagull Models Edge 540
 

tks looks good - this remains a helpfull thread even when we wonder a bit. best

Seagull Models Edge 540
 

Guys, did a bit more on the Edge last night. I checked and there is no way you can use standard size servos opposing each other in the back under the elevator. There is just too much gap to fill and it would look stupid to have these things hanging out of the fues. I guess the best would be to go for low profile servos like Wolf says but my wife will kill me if I spend any more on this plane.....

So anyway, I made another cutout on the opposing side of the servo port more towards the front of the plane and two standard servos fit fine there. I'll use the twin ports for the elevator halves and use the standard back port for the rudder. An additional benefit is that there is now 2 servos on the left side (looking forward: port) which may do something to counteract the weight of the big 1.20 donk hanging out the right (albeit probably very little). I did a test fit of all the bits last night and found that it balanced on the recommended CG if I have the battery and rx in the compartment behind where the wing fits.... pretty good. Looks like no extra weight required.

Hoping to run it in this weekend and if the weather is good maybe steal a couple of flights in the winter chill.....

Will let you know how I go.

Gricer.

Seagull Models Edge 540
 

as you mentioned the servo problem i just went and had a look, yep we put ours with one slightly forward. still used flat ply to strengthen but on the inside. it's been a while since we built ours and every time you guys talk about it i have to go and look, keeps it interesting!!

Seagull Models Edge 540
 

wolf/all:
Were did you buy the control horns you are using on the elevator and rudder? I got some horns from Du Bro but they use 4 screws and I am looking for the ones with 3 screws.

GL

PS: I am still waiting for the YS. Talk about slow mail !

Seagull Models Edge 540
 

Hi Guys
I have been following the discussions regarding the Seagull Edge 540. From what I read, it is a recommended buy, correct?
I have a Laser 150 (same dims as a Saito 120, but heavier). What is the verdict on using the Laser? I also have a saito 120 I could use. Recommendation?
Can I get away with 2 std servos for the elevator or is it better to use one high torque servo?
Thanks to anyone who can help. I got lottsa time to get things sorted out- Three or more feet of snow - months before spring and flying weather.
Thanks
Darryl

Seagull Models Edge 540
 

hi ducati
the control horn i use is a copy of mk kato,with ball bearing, but i dont know which is the manufactured( but kato cost me 10$ and this 5$)
tfacr
remember this plane was born for .60-.90 two stroke (about
0,5-0,6 kg of weight)so if you mount a larger engine ,like laser or any 120 FS you have a surplus of weight about 0,3-0,4 kg(about 10% of the entire plane finished).the airframe doesen't like it
regards
Mirco

Seagull Models Edge 540
 

Hi Tfacr,

I am building mine with an SC1.20FS and I think it's really right on the limits for weight. The recommended place for the battery is right up near the engine and guys have been saying they've even had to add weight up front. Mine I have the battery half way down the rear of the fueslage to get the CG right and am thinking I might need to add another battery to get any sort of CG more touchy than what is recommended in the manual.

May yet have to drill holes in the landing gear... ;-)

Will hopefully get some footage of the big girl firing up this weekend.

see ya!

Seagull Models Edge 540
 

Sorry, just on that, beware that you will need a lot of servo lead extensions... I raided my supply last night when fitting the servos.

7 extensions in total! you could get away with 6 if you wanted to mount the rudder servo in the middle of the plane (as recommended in the manual).

Seagull Models Edge 540
 

tfacr - on the qus of std servos - which ones

Seagull Models Edge 540
 

The servos I'm thinking of are JR517 - I have a pile of them.
Gricer-would like to hear about the flight with the 120.
Do you guys think the laser 150 is overkill or is the 120 good enough?
Thanks
Tfacr

Seagull Models Edge 540
 

everyone else is flying with a .90fs or Saito 1.00 at the biggest as far as this thread goes.

I'm hoping the 1.20 doesn't vibrate the whole front of the plane off :-)

my planes normally only last 1 season anyway as in Ireland we fly everyday during summer as the Winter is just a complete waste.


Will let you know how it goes.

cheers

Seagull Models Edge 540
 

Thanks Gricer - I guess I'll stick to the 120 - I don't have the ARF yet, but from what has been said, it looks like a good buy.
Do you know what hobby shop has the best price?

Thanks
tfacr

Seagull Models Edge 540
 

Wouldn't know about Canada sorry.

I bought mine locally but I will guarantee that's not going to be cheaper than the US...

Seagull Models Edge 540
 

back to the servos - the std servos ok for basic stuff but never on rudder or elevator this is the easy way to lose your plane with high speed flutter etc, so put the best you can afford please.best

Seagull Models Edge 540
 

Hi Adrian,

I'm running Futaba S3001's ballbearing, that came with my FF9. They're not metal geared or high torque but I would consider them to be amongst the best 'standard' servo for quality. They should be a step up (albeit small) from the S3003. Any comments on these type before I get airborne?

Seagull Models Edge 540
 

Thanks Adrian - like Gricer said about the servos, for my JR or HiTec radios, what would you recommend on elevator and rudder?
Gricer - I located a source that (believe it or not) is cheaper than US price!
Cheers
tfacr

Seagull Models Edge 540
 

What might tha source be?

Seagull Models Edge 540
 

the source I found was at HobbyWholesale in Alberta. When you convert from $CDN to $US and take into consideration border taxes, Ontario taxes and shipping, its cheaper to buy in Canada.

Seagull Models Edge 540
 

Back to what wolf said on post 283, Seagull makes 2 sizes of edge 540.
A 60 size and a 1.20 size (78" span). That is the one I am referring to - I mean it calls for a 1.2 so any real reason why a Laser 1.5 wouldn't work?
Thanks to all
tfacr

Seagull Models Edge 540
 

hi tfacr
you don't have specified which model,this post is for 60 size not for 120 size .referrred to 120 size laser engine is a good FS but this tipe of model required a little powerful engine.btw laser normally are on scale not aerobatic model.
but if you have it(laser) mount and tell us the results

Seagull Models Edge 540
 

Sorry to confuse the issue - the 120 size Edge is what I'm looking at. I haven't got it yet, but think I will and use the laser in it. I know the laser is for scale bu as you said, I have it and might as well use it.
I'll let you guys know how it goes but like I said, not too soon as we still have snow here.

Seagull Models Edge 540
 

Hi Guys,

You'll love me and hate me, got the first flight (well 2 actually) in on the Edge today but forgot to take the digital camera to the field I was in such a rush... doh!

My trimming measurements weren't too great on the ground as once in the air I had to apply quite a lot of up elevator, it made for an eventful first flight and looked for a long time like it was going to land up in some 'negative altitude'. After a couple of minutes of brown trowsers I got the trim sorted and she really flew like a 'beut.

I did however find it a little slugish, and easy to stall. I put this down to flying without the cowl on (to avoid overheating... new motor) it was also very windy etc. but also maybe as I'm used to the Magnum (see avatar). Anyway on the second flight I managed to have a good bit more fun with it but due to running out of juice on the final approach managed a 'hard landing' and ripped out the undercarriage and part of the bottom of the plane. Bit of a pain as I found that my first landing was a peach! right on the middle of the patch no fuss and taxi'd it back to the pitts. So lesson learnt, keep an eye on the time when flying. Put it through a few snap rolls, loops, inverts, stall turns, avalanche, blender and it handled them all with ease. The firewall is very squared off so I think my fuel economy and performance will increase with the cowl on (hopefully next weekend).

So anyway, first impressions are great fun to fly, bit of a nasty habit of trying to drop at the end of a landing approach (so keep blipping the throttle), a great crowd pleaser (Everyone at my field stopped to watch it fly). Hopefully next week I'll have the undercarriage fixed, the cowl on and the dc with me for some minor footage and a few pics.

oh and one of the best parts, you can tick along slowly flat and level, then just pull verticle give it full wick and watch it go straight up for good.... right on 1.20! :-)

Having said that, any recommendations as to what prop to use? I'm currently on a 16*6, found it slightly slow in the air but great verticle pull and 3 metre takeoffs. 15*8 or 18*6 maybe??? coments.