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Seagull Sea Fury, 2 stroke a crime?

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stuey13/12/2012 17:18:55
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602 forum posts
12 photos

Hi chaps, after an opinion. I am trying to come up with a Xmas pressie from my wife (a contribution at least!!) and I am pondering a Seagull Sea Fury or the Hangar 9 P-47. The Sea Fury is my preference, but totting up whats needed is pushing it a bit. The first being the engine. I know a 4 stroke would be better, but I have read that a .91 may not be man enough, and as far as the better value ones go you have a choice of that or a .120 at a fair bit more. I could get a .91 2 stroke with an in cowl silencer for less than the .91fs, but is that sacrelidge? My 2 Kyosho 50 sized models have 4 strokes, so I can make a comparison. After all a lot of bigger warbirds fly with 2 stroke petrols, they dont sound like a 4 stroke do they?

The other thing I was pondering was does it really need flaps? That could save 2 servos, and I see no reason why the elevator could not be done with 1 servo of suitable torque instead of two. That would also save a bit of weight and therefore wing loading.

Am I barking up the wrong tree?

Dave Bran13/12/2012 18:10:08
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1898 forum posts
5 photos

Don't worry about the noise pitch, go 2 Stroke, a four stroke is just an engine working half as well........... wink 2

You DO need flaps on it!!

Simon Chambers13/12/2012 18:15:01
789 forum posts
42 photos

Let's not kid ourselves, a 4-stroke single cylinder glow engine is going to sound no more like a fullsize warbird engine than a 2-stroke single cylinder engine!

However a 4-stroke does sound kinder to the ear than a 2-stroke imo.

John Hickson14/12/2012 08:31:11
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222 forum posts
1 photos

After having my first 4S for my seagull seafire its 4's every time from now on for me

Edited By John Hickson on 14/12/2012 08:31:22

Danny Fenton14/12/2012 08:39:08
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9318 forum posts
4125 photos

It is a very light model, so you may not need as much power as you think.

Of course you could really upset everybody and go electric.....

img_8339.jpg

Cheers

Danny

GrahamC14/12/2012 08:53:23
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1240 forum posts
196 photos

What about a petrol? They are getting very cheap. 20cc's can be had for just over £100 and the reviews seem to be pretty good. Also check out Inwood's prices on SC fourstrokes. They can be very reasonable.

stu knowles14/12/2012 10:06:08
586 forum posts
44 photos

Sorry, I have never understood the assertion that somehow four stoke motors are more 'scale' I've used three or four but currently own none. Even my Puppeteer has a two stroke, large prop & good silencer, sounds every bit as good and to me, far less expense and hassle.

Have to agree with previous post, soemthing like a zenoah 20, plenty of power, easy starting and clean CLEAN!!

stu k

bouncebounce crunch14/12/2012 10:16:34
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1739 forum posts
212 photos

I am too busy trying to fly rather than listening for a g, d-minor or f-major note, power equals flight, bolt on what ever it is and get up there.

Edited By bouncebouncecrunch on 14/12/2012 10:16:58

stuey14/12/2012 13:31:05
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602 forum posts
12 photos

Thanks for the feedback chaps. To me a real sea fury has a slightly higher pitch sound to a merlin, so I dont think a 2 stroke is that far away. I am an electric/IC man so I'm not against the idea of that choice.

Danny, do you think the flaps are essential?

Danny Fenton14/12/2012 13:37:02
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9318 forum posts
4125 photos

Hi Stuey, I found that full flaps caused the model to be a bit unstable, but at 45 degrees or half flap in my case they worked very well, with a handful of revs right down to the deck.

Seeing this thread has reminded me how much I enjoyed mine, must get it flying again for next year.

Cheers

Danny

stuey14/12/2012 14:49:31
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602 forum posts
12 photos

Thanks for that Danny, at least this thread has reminded you! I just wish I could make me mind up!

stuey14/12/2012 14:52:30
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602 forum posts
12 photos

Does anyone happen to know if a .91/108 2 stroke would fit inside the cowl sideways, allowing for a pitts type silencer to exit through the bottom?

Danny Fenton14/12/2012 14:59:02
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9318 forum posts
4125 photos

LOL its a cracker of an aircraft, and when i got mine Leeds Model Shop was doing them for £99 so a real bargain.

Will this tempt you???

This was a very early flight before i got used to it, and nearly lost it by relaxing the up elevator on takeoff. The piano wire rods for the retracts also needed doubling up as it flexed and failed to lock the wheels up.
Cheers
Danny
Prop Nut14/12/2012 15:30:10
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336 forum posts
1 photos

If you were to opt for the Hangar 9 P-47, it uses a single elevator servo and doesn't have, or need, flaps. Mine has more than enough power on the OS .91FS that cost me £80 second-hand, and it has quickly become a favourite. I intend to go petrol for my next warbird, given the prices now, but wouldn't rule out a 2-stroke. Do whatever you need to get it into the air!

Steve Hargreaves - Moderator14/12/2012 15:37:01
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Moderator
6746 forum posts
197 photos

Just to chuck another thought into the mix how about the Super Tigre G2300?

£145 from Steve Webb.....I know Lee Smalley loves his ST in his big (63" Yak....

I probably should point out that I don't have an ST G2300 OR a Sea Fury so my opinions are totally untainted by facts...embarrassedteeth 2

Turbycat14/12/2012 17:24:03
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594 forum posts
55 photos

Now there's a thought. Looking for a new home for my St 2300 since the demise of my Yak a couple of months agolaugh. The St isn't too noisey either.

Andy

Lee Smalley14/12/2012 19:09:31
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2125 forum posts
68 photos
2 articles

G2300 is a great engine not quite as clean as a petrol but just as easy to start, cheaper and runs on 5% or no nitro.... man what en engine and really quite too!!

stuey18/12/2012 18:15:33
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602 forum posts
12 photos

I eventually decided today and ordered a Sea Fury. This was helped by the fact that the P-47 is out of stock where I tried! Not decided on the engine front yet, and I am hoping to incorporate a few mods to add a bit more scale detail such as possibly shortening the cowl a bit. Thanks for the posts so far smiley

Danny Fenton18/12/2012 18:21:14
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9318 forum posts
4125 photos

Stuey, you have made a good choice. I cut a big chunk off the rear of the cowl off and slid it back to shorten the nose just as you are planning. The cowl is parallel so its quite a simple task. However if you are going ic you may need to add weight up front. With electric it wasn't an issue as the cells are right up the front wink 2

Cheers

Danny

Concorde Speedbird18/12/2012 18:56:34
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2730 forum posts
649 photos

A nice bit of engine will solve c of g! wink 2

Nice looking planes, you should enjoy yours- good luck!

CS

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