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Old Nov 22, 2012, 07:21 PM
Some call me the other guy!
DoctorAudio's Avatar
Milwaukie , Oregon
Joined Feb 2003
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Quote:
Originally Posted by bakon View Post
I'm looking at this plane as a christmas gift (for myself hehe) but I am curious about the laminating process. Is it easy to botch? I always make mistake the first time I do something and I would hate to screw up such a nice plane as this is. Also, the GoPro mounting system, is it worth the $35? Couldn't I build something similar out of balsa for cheap? Oh and yeah, I'm pretty much sold on this.

Thanks,
Bakon
Laminating is not hard at all!
It is heat sealed so really you could cut it inot many pieces and still put it on. As long as you overlap it!
So, don't worry about messing it up. I think Chris cuts it into a few smaller pieces.
Which is easier than doing it the way I did! I covered the top section, with three
pieces of lam.
After that I do the bottom the same.
As for the GoPro case, some have made some cool cases. But for 35 bucks you get the best template.
Then you could make yourself another!
So yes it is worth the 35 bucks.
Have Fun!
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Old Nov 22, 2012, 10:13 PM
Money Shot
United States, CA, Lakeside
Joined Apr 2010
903 Posts
http://www.urbandrones.com/24Ghz-1W-...tter_p_13.html

http://hobbywireless.com/index.php?m...products_id=26

tims not the only fpv store in the states
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Old Nov 23, 2012, 05:35 AM
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Old Blighty
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Quote:
Originally Posted by DoctorAudio View Post
Hahaha
I hit 102 with 1200 watts.
so 800 more watts to hit 120.

The airfoil is not designed for for more than 80-90 mph.
Look how thick it is.
If you want something that goes faster, you should get a Demon!
Now that is the speed ship, I had one that went 170 all day!
I believe below is a pretty accurate speed/power profile for the ZII. As widely acknowledged, the ZII doesn't lend itself well to speed records - but it's a bloody marvellous plane!

x = MPH
y = Watts



This one is just a little more zoomed in.

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Old Nov 23, 2012, 06:29 AM
never mind the boll⁣⁣⁣ocks
brosius85's Avatar
Australia, NSW
Joined Dec 2010
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i think that might be a little steep... 4000w for 150mph? if i had 4000w i would expect 180 -200 mph

you have the right idea though, you basically need 4x the power to get 2x the speed. . . diminishing returns . . .
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Old Nov 23, 2012, 06:42 AM
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Montreal, Canada
Joined Nov 2003
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The issue now is what setup to get me there. There has been little if any experimentation with higher cell counts... I've decided I'm going to try 8S - any recommendations regarding motor/prop would be appreciated...
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Old Nov 23, 2012, 07:14 AM
never mind the boll⁣⁣⁣ocks
brosius85's Avatar
Australia, NSW
Joined Dec 2010
1,256 Posts
Ritewing Demon 50" 10S 195mph! (6 min 0 sec)

Ritewing Rokett 3670-880kv motor

10S 4400 65C

Ice 160HV Lite Speed control

8x8 Sport prop

Hyperion DS20 UMD servos

Pulling 4000W at 27,200 RPM in level flight.

also check page 248 i looked up another setup that would go pretty quik on 8s
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Old Nov 23, 2012, 07:43 AM
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Old Blighty
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Quote:
Originally Posted by brosius85 View Post
i think that might be a little steep... 4000w for 150mph? if i had 4000w i would expect 180 -200 mph

you have the right idea though, you basically need 4x the power to get 2x the speed. . . diminishing returns . . .
Nope, you need 8x the power to double your speed - the curve is right.

This is true of cars, boats, planes... (e.g. to do 100 MPH in a car requires on average 75 BHP. If you want to go 200 MPH however, you had better be packing 600 BHP)

http://en.wikipedia.org/wiki/Drag_(physics)#Power

.
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Last edited by Ian Davidson; Nov 23, 2012 at 07:53 AM.
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Old Nov 23, 2012, 07:59 AM
I Toast Planes
bakon's Avatar
Joined Jul 2010
945 Posts
Quote:
Originally Posted by DoctorAudio View Post
Laminating is not hard at all!
It is heat sealed so really you could cut it inot many pieces and still put it on. As long as you overlap it!
So, don't worry about messing it up. I think Chris cuts it into a few smaller pieces.
Which is easier than doing it the way I did! I covered the top section, with three
pieces of lam.
After that I do the bottom the same.
As for the GoPro case, some have made some cool cases. But for 35 bucks you get the best template.
Then you could make yourself another!
So yes it is worth the 35 bucks.
Have Fun!
Awesome! Now I am really excited. I assume I use the same material used in balsa wing covering or is there a specific type of laminate? Like this here: http://www.hobbyking.com/hobbyking/s..._5mtr_401.html If not what should I be looking for? And that GoPro case, what is that material? I think your right with the template idea, I'm just curious as to what I could use to make repairs and such if the need ever arises.
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Last edited by bakon; Nov 23, 2012 at 08:44 AM.
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Old Nov 23, 2012, 10:30 AM
Some call me the other guy!
DoctorAudio's Avatar
Milwaukie , Oregon
Joined Feb 2003
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Find some all signs it is the same plastic sign material as the use for election signs!

It is the same principal, as monocoat, just not as much a pain!

Hope all this helps you get er done!
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Old Nov 23, 2012, 11:31 AM
I Toast Planes
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Originally Posted by DoctorAudio View Post
Find some all signs it is the same plastic sign material as the use for election signs!

It is the same principal, as monocoat, just not as much a pain!

Hope all this helps you get er done!
Thats what I thought the material was but I wasn't sure! Haha funny. Do I use monocoat under the laminate or on top if I wanted the plane to have a unique look to it?
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Last edited by bakon; Nov 23, 2012 at 12:49 PM.
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Old Nov 23, 2012, 02:12 PM
Some call me the other guy!
DoctorAudio's Avatar
Milwaukie , Oregon
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I guess I would do mono coat over the laminate!
If I was good at doing it , It would look killer and lighter than mine.
But I don't care about weight with the ZII!
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Old Nov 23, 2012, 02:47 PM
I Toast Planes
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Originally Posted by DoctorAudio View Post
I guess I would do mono coat over the laminate!
If I was good at doing it , It would look killer and lighter than mine.
But I don't care about weight with the ZII!
SO your saying you would choose monocoat over the laminate?
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Old Nov 23, 2012, 03:29 PM
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Canada, BC, Vancouver
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How thick is this monokote, never used it
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Old Nov 23, 2012, 03:45 PM
I Toast Planes
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Originally Posted by elliott000 View Post
How thick is this monokote, never used it
Almost paper thin. I use it on my balsa planes. It keeps its shape pretty well I am just curious to see whether or not the Zephyr will take the heat from the iron. Its also a lot cheaper than the laminate suggested.
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Old Nov 23, 2012, 04:47 PM
never mind the boll⁣⁣⁣ocks
brosius85's Avatar
Australia, NSW
Joined Dec 2010
1,256 Posts
think of laminate as adding a monocoque the same way people skin a foam wing in fiberglass or balsa. using a cheap crappy substitute or just using mono is going to compromise the strength of the build.

and Ian i am sure you know your stuff (i never did physics) but what i can say for sure is even if the curve is right the attached numbers are wrong
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