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Swamp Rat builders

Peter millers

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Gary Vinten 101/07/2013 23:50:30
522 forum posts
326 photos
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Hi All

Is anybody building Peter millers new sports plane the swamp rat

kc02/07/2013 10:52:26
5901 forum posts
168 photos

The magazine was not available in WH Smith's last week so I have yet to see the plan. However it is certainly one of the planes I intend to build soon, and I will build for electric.

I wonder if a much smaller electric motor & Lipo would suit, rather than the high powered version that Gary built. Could suit many more people with more modest power setup, for everyday flying. What do you think it would be like with 350 or 400 watts?

Frankly it was disappointing to hear that the electric version was not shown on the plan but only online! You can still get your 15 minutes of fame Gary if you get the Patriot published........

Peter Miller02/07/2013 18:59:38
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Posted by kc on 02/07/2013 10:52:26:

Frankly it was disappointing to hear that the electric version was not shown on the plan but only online! You can still get your 15 minutes of fame Gary if you get the Patriot published........

Not my fault!

Gary Vinten 102/07/2013 19:57:39
522 forum posts
326 photos
1 articles

Hi Peter

I don't hold you responsible at all Peter it was down to the powers to be !! after saying that , all that build the model will have loads of fun Fly mine all the time so get building and have fun.

Maybe show some photos of all the models when they are built ic or electric , it will also be good to here what power plants people use and what batteries .

Gary

Peter Miller03/07/2013 08:49:09
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I take mine when it is breezy, like Sunday, or when I want a spare model as it fits in my car.

It gets flown more than most of my stable.

kc03/07/2013 11:12:07
5901 forum posts
168 photos

Of course I knew it was not Peter's fault but I wanted Gary to know that the rest of us ( well me at least! ) were disappointed!

Peter, what do you think about a low wing version with just the wing lowered a bit and an open cockpit?

I now have the magazine and it shows the weight to be about 3.5 pounds, so what does Gary think about 350 or 400 watt power? The rule of thumb 100 watts per pound for aerobatic models seems to work OK . I put 300 watts on a 2 pound model ( 150 watts per pound ) and it was ballistic and too much for even a Mini Frantic so I reckon 100 watts per pound is fine for 'normal' flying. ( I consider ' normal' to be smooth aerobatics and moderate vertical performance but I realise other people may want more dramatic performance )

Peter Miller03/07/2013 18:11:35
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Posted by kc on 03/07/2013 11:12:07:

!

Peter, what do you think about a low wing version with just the wing lowered a bit and an open cockpit?

Kc. Feel free to modify the design as you want. I always say that doing that is the first stage in designing your own.

Gary Vinten 103/07/2013 22:05:52
522 forum posts
326 photos
1 articles

Hi. KC

400watts of power should give you smooth aerobatics. But you would be on full throttle most so the lipo would have to be up to scratch.

Gary Vinten 103/07/2013 22:10:38
522 forum posts
326 photos
1 articles

Hi. KC

400watts of power should give you smooth aerobatics. But you would be on full throttle most of the time so the lipo would have to be up to scratch.

Gary Vinten 113/07/2013 20:20:51
522 forum posts
326 photos
1 articles

Hi All

The new version of the RATATAT . I have squeezed the front in to make it more like a drag racer this is such a fun plane to fly and quick to build i had to make another. (Because i demolished the other onecrying) The centre wing panel is a little higher as well so it looks more like a cockpit !

ver2 ratatat 297.jpg

ver2 ratatat 298.jpg

ver2 ratatat 300.jpg

Madden for this one will be in the morning wink

Edited By Gary Vinten 1 on 13/07/2013 20:23:51

Peter Miller14/07/2013 08:05:22
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9917 forum posts
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10 articles

Looks great Gary. Glad you like the design so much.

Gary Vinten 117/07/2013 21:11:45
522 forum posts
326 photos
1 articles

Thanks Peter

I have built most of your models over the years and always had great flying and good fun building .

Keep them coming yes

Daniel Cardona19/07/2013 23:39:40
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Posted by kc on 03/07/2013 11:12:07:

Of course I knew it was not Peter's fault but I wanted Gary to know that the rest of us ( well me at least! ) were disappointed!

Peter, what do you think about a low wing version with just the wing lowered a bit and an open cockpit?

I now have the magazine and it shows the weight to be about 3.5 pounds, so what does Gary think about 350 or 400 watt power? The rule of thumb 100 watts per pound for aerobatic models seems to work OK . I put 300 watts on a 2 pound model ( 150 watts per pound ) and it was ballistic and too much for even a Mini Frantic so I reckon 100 watts per pound is fine for 'normal' flying. ( I consider ' normal' to be smooth aerobatics and moderate vertical performance but I realise other people may want more dramatic performance )


i was thinking doing large ailerons ,elevator and rudder like fun fly style. it will remind me the ripmax DARE-U. i was thinking the same design, but the wing must be a bit thicker as the DARE-U type

Peter Miller20/07/2013 08:28:43
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9917 forum posts
1160 photos
10 articles

Hi Daniel.

Try anything you like though the real fun fly models do havex huge wings compared to Swamp Rat.

Gary Vinten 120/07/2013 10:10:44
522 forum posts
326 photos
1 articles

Hi Daniel

Go for it 300/400w is fine and will fly the swamprat ,( i like a little more) I fly most of the time on 3/4 to 1/2 throttle

you could use a smaller lipo that would make it lighter (it all helps) You may even get down to 3s but you would be at full thottle most of the time ( its what  floats your boat )nerd

Good luck with the mods lets see some photos

Gary

Edited By Gary Vinten 1 on 20/07/2013 10:15:11

Formtex194731/07/2013 07:59:14
43 forum posts
14 photos

Hi folks,

Am about to build a IC version ofThe Rat and was wondering if anyone had used as Peter suggested an OS 25 glow in their version. I have available an OS.35 and was wondering if possibly that would be too much power (can one have too much))??

Any help would be useful.

Regards all
Richard

Peter Miller31/07/2013 08:06:48
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9917 forum posts
1160 photos
10 articles

I am using a .25 FSR. which is a pretty powerful engine. I feel that the model will handle a bit more power. quite safely. I doubt if the model would be much faster on that small increase of power.

SOme .35s are not as powerful as the FSR. for example a 35 FP.

Gary Vinten 131/07/2013 10:32:06
522 forum posts
326 photos
1 articles

Hi Richard

good to see someone making the swap rat lets see some pictures .

You will have loads of fun with this model push your sticks into all corners and watch her pull out fantastic fun

Gary

Edited By Gary Vinten 1 on 31/07/2013 10:33:07

kc31/07/2013 11:02:41
5901 forum posts
168 photos
Surprisingly, the weight & dimensions of the OS 35FP and also the older Max35 are very similar to the 25FSR. ( I expected the 35's to be much heavier and bigger! ) Height is 6mm more though which could make a difference in appearance on the Swamp Rat.
My advice is to go for it if you know the OS35 is working well. If it's a poor performer ( as some FP's are ) then reconsider.
kc31/07/2013 11:51:44
5901 forum posts
168 photos
A question for Peter.
The plan shows the elevators not tapered in thickness, is this correct? Also shows rounded edges to elevator TE. Is this correct? ( some aerobatic pilots reckon squared off edges to elevators etc give crisper control)

Question to Gary. Did you do the elevators as above?

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