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RIZLA +

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Gary Vinten 109/11/2016 17:04:03
522 forum posts
326 photos
1 articles

Hi all looking around the site I see that there is some interest in building a larger model from a small one !!

so I put my thinking hat on and sat on my rock

20161105_125538[1].jpg

an came up with the idea a RIZLA +

So here we go !!!!!!!!cheeky

Edited By Gary Vinten 1 on 09/11/2016 17:05:03

Gary Vinten 109/11/2016 17:06:50
522 forum posts
326 photos
1 articles

First the fuss

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Gary Vinten 109/11/2016 17:09:59
522 forum posts
326 photos
1 articles

Then

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Gary Vinten 109/11/2016 17:11:35
522 forum posts
326 photos
1 articles

and

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Gary Vinten 109/11/2016 19:03:17
522 forum posts
326 photos
1 articles

This is the smaller one

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kc09/11/2016 19:15:32
5864 forum posts
168 photos

What size is this one Gary? Lets see this one published if it flys as well as the first one or two.

Gary Vinten 109/11/2016 19:40:05
522 forum posts
326 photos
1 articles

H I KC

I am going to get the small rizla published just need to get my !!!!!!!! in gear but will see if I can by the end of the year yes Then if this one fly's as well then may be I will do the same devil

Tom Sharp 209/11/2016 19:59:44
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3348 forum posts
17 photos

I thought RIZLA was a brand of self roll fag papers.

Gary Vinten 109/11/2016 21:20:51
522 forum posts
326 photos
1 articles

ok some more

20161023_223341.jpg20161023_223330.jpg

Gary Vinten 110/11/2016 19:18:41
522 forum posts
326 photos
1 articles

here are some more pics

I will put up specs in a while

20161029_130615.jpg

Gary Vinten 112/11/2016 09:35:27
522 forum posts
326 photos
1 articles

Here are a few more pics

20161029_130619.jpg20161031_225156[1].jpg20161031_225150[1].jpg

Gary Vinten 122/11/2016 16:11:04
522 forum posts
326 photos
1 articles

Rizla + specs !!

wingspan 59"

fuss 50"

AUW aprox 7ib

Motor electric overlander T635 at 1700w

Battery lipo 6s 5000 with XT 90 fittings

prop 17x08 or 17 x 10 apc electric

ESC YEP 80amp 6s with 5amp bec

Elevators flaps rudder ailerons

Radio taranis with telemetry x8 receiver

wink

MattyB22/11/2016 16:42:53
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1908 forum posts
29 photos

I cannot find any specs for your motor online - is there a typo in there? What is the Kv? I suspect you may struggle to get 1700w out of a 17x10; my Sebart Miss Wind has just under 1100W on a Hacker A50-16S on a 16x10 and 6S at just under 60A. Besides, I would have though 100-1200W would be absolutely find for a model like this which is very low drag.

Beware of magic smoke...

 

Edited By MattyB on 22/11/2016 16:43:48

Gary Vinten 122/11/2016 17:15:35
522 forum posts
326 photos
1 articles

Here we are Matty

YES a typo so specs below cheeky

Brushless Outrunner RC Motor - Tornado Thumper V3 6354/16 200KV

• 2210 watt motor
• 10-28 NiMh cells
• 4-10 LiPo cells
• Prop size from 18x10in to 20x10in (larger prop with less cells)
• Shaft Diameter 8mm Shaft
• Motor weight 471gm
• Speed Controller Recommended 80A ESC

I have tested the motor on a 17" prop and got 1700w at 70amps so no magic smoke or me wink

The plane would be very sedate on your watts and it needs to fast as it will look fast just me wink 2

Bob Cotsford22/11/2016 22:14:28
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7788 forum posts
432 photos

I want to know what's been rolled into the rizla - 1700W on a 59" span? surprise

MattyB22/11/2016 23:56:26
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1908 forum posts
29 photos

I would need to work out the numbers on ecalc to be sure which I can't do on my phone, but I still wonder how you're getting to 1700W on a 200Kv motor, 6S pack and a 17x10 prop. Are you sure it is not a pitchier prop?

I think you are going to be disappointed with the speed if your prop really does have a 10" pitch. On a fresh pack the max theoretical pitch speed is only ~45 mph; that's a thrust optimised setup more for a Cub or 3D model than a rocket ship! According to Overlander that motor can run an 18x10 on a 10S(!) pack, so a 17x10 is way under propped on 6S. If you are after speed a square or over-square prop would be a good bet; a 16x16 might be in the right ballpark. Even so I do wonder if your Kv is just too low for serious speed on 6S whatever prop you run.

Edited By MattyB on 23/11/2016 00:14:07

Peter Miller23/11/2016 08:27:03
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9839 forum posts
1157 photos
10 articles

Nice one Gary. Should be popular.

As for power, fit a .52 FS. Simples.

Bob Cotsford23/11/2016 10:49:06
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7788 forum posts
432 photos

No Peter, what Gary wants is a piped .90 ducted fan motor turning a 12*12 devil

MattyB23/11/2016 11:28:23
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1908 forum posts
29 photos
Posted by Peter Miller on 23/11/2016 08:27:03:

Nice one Gary. Should be popular.

As for power, fit a .52 FS. Simples.

That's right, anything that does not have a glow four-stroke on the front is not a "real model" / an act of satan...

Edited By MattyB on 23/11/2016 11:38:53

john stones 123/11/2016 11:31:37
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10342 forum posts
1475 photos

With a name like Rizla of course it should have smoke coming of it, wouldn't be scale otherwise wink

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