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Nov 14, 2018, 01:36 PM
Registered User
Looks like a fun one! I like where you put the motor. Never liked the Polaris motor on the vert stab, although lots of them are in the air. This looks more durable!
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Nov 14, 2018, 07:21 PM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by dpalmer146
Lockey,
You may want to make it easier to replace the nose.....you know how your designs are Since this is gonna be a El Nino winter I am thinking that I need one of these for snow scooting. Also, my wife's apprentice might need a set of floats! Are you gonna use MPF for this build? Keep up the great work!

David
Shouldn't need floats for this one David .. she is already a sea plane .. come SOG ... come SOS ... thats Slide On Grass and Slide On Snow

Now .. Why would I need to make the nose easier to replace ??

Designed for 6mm Depron so you guys will have to just make the slots a little bit smaller for MPF .. as I remember its only about 5mm

If it flies good, it will be on my web site, but if any of you guys want it let me know and I will sent it to you FOC

Hey Steve, I too loved the Polaris and built a few over the years BUT as you said, the motor on the vertical stab was always a problem, thats why I designed the Vixen which as very similar to the Great Polaris but had the motor on the fuz

Lockey
Nov 15, 2018, 03:59 PM
Registered User
Would love plans. I’ll adjust them for us 5mm foam folks. What wingspan and length are you at?
Nov 15, 2018, 05:40 PM
Retired CAD guy
birdofplay's Avatar
I have studied my Vixen layout and I believe that
IF I use a 2mm bit versus the 1/8" bit
THEN the slots will be pretty close to the MPF thickness.

Of course IF Lockey sends me his plans for the SeaScout ;>} ;>} nudge nudge
THEN I will do those up right in the 1st place.

I see that Banggood is offering some UV Cure resin as fairly reasonable prices.
I plan to try a bottle and a UV LED Penand try some Foam assy with that stuff as it's CLEAR
and "Should" SET quicker than our Gorilla white glue.

Anyone else tried that stuff ?

https://www.banggood.com/UV-Resin-Ha...r_warehouse=CN
Last edited by birdofplay; Nov 15, 2018 at 05:51 PM.
Nov 15, 2018, 07:07 PM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by jpot1
Would love plans. I’ll adjust them for us 5mm foam folks. What wingspan and length are you at?
Hi jpot, wingspan is 688mm and length 830mm .. as always based around a std sheet of Depron which is 1000 x 700mm about 1 and a quarter sheet .. I am expecting the all up weight to come in around 600 -700 grams (depending what battery is used)

What size does the MPF come in ?

Sure Bob, if she flies good, you are welcome to the plans for cutting, if you told your machine you were using a 2.2mm cutter and actually used a 1.2mm cutter, wouldn't that do the slots etc a little smaller ? only trouble is it would make the length of the slots smaller too

According to the MPF web site, these are the specs ..

Grade A Model Plane Foam

All sheets are nominally 24" by 48" by 6mm thick.

Full box (16 sheets) is $40 plus shipping

Half box (8 sheets) is $23 plus shipping

Area of the Depron sheet is 1085 Inches ² against 1152 Inches ² .. so the MPF sheet is actually slightly bigger by area .. and they say its 6mm thick

Lockey
Last edited by Lockey; Nov 16, 2018 at 09:10 AM.
Nov 15, 2018, 08:53 PM
When pigs fly rc
rcrich's Avatar
Well its snowing outside right now and now i want to build this real bad.
Nov 15, 2018, 09:45 PM
Retired CAD guy
birdofplay's Avatar
I was just looking for an easy ( LAZY) way out of redoing my Vixen files.
There are so many slots and tabs that I was hoping to avoid the FIX for thinner, MPF, foam.

A N D it would likely be "JUST FOR ME" as nobody has ordered a Vixen from me
since I moved back to Indiana, sigh ...

FYI
I use 47.5" x 24" in my layouts, just to be sure I don't get too close to an edge.
I 'm using 5.5mm for thickness .
As you say there's more area in a sheet of MPF than Depron.
Nov 16, 2018, 08:30 AM
Registered User
justj's Avatar
[QUOTE=birdofplay;40481313
nobody has ordered a Vixen from me
since I moved back to Indiana, sigh ...

.[/QUOTE]

I did... haven't built it yet..... still 'on the list' ......

Jerry
Nov 16, 2018, 08:54 AM
Registered User
Quote:
Originally Posted by Lockey
Hi jpot, wingspan is 688mm and length 830mm .. as always based around a std sheet of Depron which is 1000 x 700mm about 1 and a quarter sheet

What size does the MPF come in ?

Lockey
I’m going with Dollar Tree foamboard which say 5mm but in reality tends to be a little thinner. 688mm sounds perfect for the 2306 mini quad motor I just grabbed on sale from HK.
Nov 16, 2018, 08:55 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
I have a small lake on a park just 2 minutes away from where I live and this project was to be hopefully one I could fly there but I am thinking its maybe still a bit big and heavy for my small park.

So I decided to build this one and see how it flies .. Judy Seajet .. Bob, you will know this on, in fact I do believe you sent me the plans for this little one, I have redrawn it and converted it to G-code to cut on my CNC machine .. so this one I have made from 3mm Depron and 6mm Depron just for the formers .. I upped the size a little to 650mm just so it would be a bit bigger and still fit on a sheet of 3mm Depron

Just cut out and built so far this afternoon .. not a build log, so only a few pics .. here is the link to the thread if anyone else is interested https://www.rcgroups.com/forums/show...rgen-Be/page12

Lockey

Here is is flying .. it looks like a sweet little slow flier

(2 min 35 sec)
Last edited by Lockey; Nov 16, 2018 at 09:01 AM.
Nov 16, 2018, 02:05 PM
Retired CAD guy
birdofplay's Avatar
There should be lots of vids of Mine flying in that thread as well.

I have three sizes, all still flying !

I'm waiting to see how your Sea Scout is shaped below the wing.
Nov 16, 2018, 06:50 PM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by birdofplay
There should be lots of vids of Mine flying in that thread as well.

I have three sizes, all still flying !

I'm waiting to see how your Sea Scout is shaped below the wing.
Just the same as the Polaris and Vixen Bob .. I am hoping the mod I did for the larger prop wont cause any problems

Lockey
Nov 16, 2018, 08:53 PM
Retired CAD guy
birdofplay's Avatar
Props tend to create enough vacuum to really suck up the water.
My Judi is often heard making that Slurpy sound when taxiing.

I might consider lengthening that lower deck plate aft a tad,
or just wait for maiden results. No harm either way

I think I'd like to see that addition "faired" IN a bit,
could be just a piece of tapered foam , stuck on ahead of the flat spot.
Any flat plate area, abruptly hitting the oncoming water, is going to be a drag.

That neat Side view sure makes it look like a real HOT Rod :>}

But then the Vixen looks like a Rocket !

And it should be easier to balance than the Judi Sea Jet
Last edited by birdofplay; Nov 16, 2018 at 09:11 PM.
Nov 17, 2018, 05:06 AM
Tony Audsley Retired Locksmith
Lockey's Avatar
Quote:
Originally Posted by birdofplay
Props tend to create enough vacuum to really suck up the water.
My Judi is often heard making that Slurpy sound when taxiing.

I might consider lengthening that lower deck plate aft a tad,
or just wait for maiden results. No harm either way

I think I'd like to see that addition "faired" IN a bit,
could be just a piece of tapered foam , stuck on ahead of the flat spot.
Any flat plate area, abruptly hitting the oncoming water, is going to be a drag.

That neat Side view sure makes it look like a real HOT Rod :>}

But then the Vixen looks like a Rocket !

And it should be easier to balance than the Judi Sea Jet
Yep, know exactly what you mean about the flared in bit .. yes mate it might just need that to stop the drag in the water

Yes I think the little Judy Seajet could be difficult to balance, I was hoping to use a very small battery but I think I might have to use a little bigger one to get it to balance .. not a problem except I was hoping to keep it REALLY light

Lockey
Nov 17, 2018, 09:14 AM
Retired CAD guy
birdofplay's Avatar
As I recall I use a 1300 3s pak on the little one but [I]use the same on on my medium sized 1.

Likely a 1000 3s would be ok.

Your Sea Scout will be much easier to balance and likely be a better SOG candidate.

And remember the Planform of this boxy model originated with the ME 163.

So it has a tendency to fly fast ;>}
Too much elevator will stall it depending on the speed and AOA. So use EXPO.

BTW I have installed Skype and funded it.
So when are we going to try it out ?


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