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Old Dec 09, 2011, 11:52 PM
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larryross's Avatar
Grand Junction, Colorado
Joined Dec 2007
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Jay
It looks to like you have a good plan there. I think you will have enough plane there to do 3D which that design does very well. I think I would consider reducing the size of the elevator and ailerons some not a lot, but some. I didn't do it on the elevator on my 250% version and wish that I had, but I have the wing plan drawn up with proportionally smaller ailerons. My 250% will be way over powered with 4 1200watt motors. Using smaller batteries I will only run them at 400 to 600 watts. I plan on doing a 25 foot B-17 if and when I finish this one. I will use the same motors for that one. It will be a big challenge to make it light and some what scale.
Good luck with your giant cargo. I think it is a good idea to mod that tail gear and use it as a front gear. If you want to look at what I am doing with my 250% cargo, here is the link:
http://www.rcgroups.com/forums/showthread.php?t=1408158
Later



Quote:
Originally Posted by bombardierJay View Post
well then i will do a 130% scale TWINS 75"( WS) with thoose motors and 30 amp esc's .

might come out to 3 lbs auw ? with the enclosed wing

I want to make this out of FFF and some 1/2" Dow Board . will that work ?

Yes it will be a full enclosed wing made from FFF and 1/2" Dow board for ribs .

fuselage mostly FFF and all Bulk heads 1/2" Dow Board .

all tail surfaces will be 1/2" dow board .

main gear . i might use 4 of them for the main gear .http://www.hobbyking.com/hobbyking/s...dproduct=9835/

Nose gear gona fab it up . and if possiable i will put a servo on it since i will not be buying a v tail mixer .
http://www.hobbyking.com/hobbyking/s...idproduct=3755
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Old Dec 10, 2011, 02:39 AM
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Joined Oct 2011
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Quote:
Originally Posted by larryross View Post
Jay
It looks to like you have a good plan there. I think you will have enough plane there to do 3D which that design does very well. I think I would consider reducing the size of the elevator and ailerons some not a lot, but some. I didn't do it on the elevator on my 250% version and wish that I had, but I have the wing plan drawn up with proportionally smaller ailerons. My 250% will be way over powered with 4 1200watt motors. Using smaller batteries I will only run them at 400 to 600 watts. I plan on doing a 25 foot B-17 if and when I finish this one. I will use the same motors for that one. It will be a big challenge to make it light and some what scale.
Good luck with your giant cargo. I think it is a good idea to mod that tail gear and use it as a front gear. If you want to look at what I am doing with my 250% cargo, here is the link:
http://www.rcgroups.com/forums/showthread.php?t=1408158
Later
LOOKIN GOOD LARRY !!!!

little update on the 130 % build . i will use the following :

Two 20C 3000Mah 3S LiPo's

Two HK Red Brick 30 Amp ESC's

Two D3128-1550 Brushless Bell Motor's ( 250W ) Each

Two GWS HD9050 3 blade prop's (1) C.R.

Six Servo's (4) HXT900's (control surfaces) (2) 12G Metal Gear Servos ( nose gear and cargo door servo's )




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Last edited by bombardierJay; Dec 10, 2011 at 02:47 AM.
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Old Dec 13, 2011, 10:49 PM
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Joined Oct 2011
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ok went to Lowe's and bought a FFF Bunch of new stock Dow 1/8 Underlayment .

and one sheet of 1/2 " 4' X 8' blue Dow board . Think this will work good . i will use the 1/2" foam for the load bearing structures . and basic layer it with the FFF .

with this being a 75" WS Twins . i need to have a removable wing how should i do this ? i don't like using ruberbands on something this big ?
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Old Dec 13, 2011, 11:10 PM
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if i up scale the full page plans to $130 % how is that gona effect the SLot & Tabs system ?

its gona mostly still bee 6 mm FFF . with some 1/2 Dow for the bulkheads and wing ribs . ?
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Old Dec 13, 2011, 11:32 PM
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Wilfor's Avatar
Canada, BC, Williams Lake
Joined Jan 2010
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Tabs will be fine you'll just have to resize the tabs . not a big deal , i do it all the time when using dollar store foam .
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Old Dec 14, 2011, 12:23 AM
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Originally Posted by Wilfor View Post
Tabs will be fine you'll just have to resize the tabs . not a big deal , i do it all the time when using dollar store foam .
how do i resize the tabs ?
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Old Dec 14, 2011, 01:57 AM
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In Teh Garage (Rossville, GA. USA)
Joined Sep 2008
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you lay the tabs out the size you need on the foam.
mark the center of the tab then split the diffrence of the thickness of the material you are using.
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Old Dec 14, 2011, 06:37 AM
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Canada, BC, Williams Lake
Joined Jan 2010
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LOL i miss typed . tabs will be fine SLOTS will have to be resized . As RT said just lay them out once the plans are printed , pretty easy . With the Tabs , leaving them on the long side is helpful as once glued together you can cut them off flush for a nice clean finish .
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Old Dec 16, 2011, 10:01 PM
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Joined Oct 2011
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Quote:
Originally Posted by larryross View Post
Jay
It looks to like you have a good plan there. I think you will have enough plane there to do 3D which that design does very well. I think I would consider reducing the size of the elevator and ailerons some not a lot, but some. I didn't do it on the elevator on my 250% version and wish that I had, but I have the wing plan drawn up with proportionally smaller ailerons. My 250% will be way over powered with 4 1200watt motors. Using smaller batteries I will only run them at 400 to 600 watts. I plan on doing a 25 foot B-17 if and when I finish this one. I will use the same motors for that one. It will be a big challenge to make it light and some what scale.
Good luck with your giant cargo. I think it is a good idea to mod that tail gear and use it as a front gear. If you want to look at what I am doing with my 250% cargo, here is the link:
http://www.rcgroups.com/forums/showthread.php?t=1408158
Later
How much should i reduce the elevator and aileron sizes on this 130% build ?
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Old Dec 19, 2011, 05:40 AM
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Joined Oct 2011
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130% build update !!!!!

I build the wing tonight . came out to 74" WS . How big to make ailerons ? and Elevator ? any idea's ?

So far the wing is done besides cutting and hinging the aileron's .
Wing Weight is 1 Pound 1 Ounce . or 480 Grams .

here are some pics . please need some dimensions on the control surfaces ?
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Old Dec 19, 2011, 07:22 AM
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CrocEnd's Avatar
Darwin
Joined Aug 2002
755 Posts
Guys please whats the good glue to use on depron
Cheer's
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Old Dec 19, 2011, 11:23 AM
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United States, IN, Indianapolis
Joined Dec 2005
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Gorilla Fast dry, Sumo although IT turns yellow later,
Foam-Tac, poxy, Hotmelt ( but not too hot - seriously )
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Old Dec 19, 2011, 08:29 PM
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Lakewood, Ca.
Joined Sep 2001
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Glue

I just finished framing my 2nd cargo foamy (dollar tree foam) and I've used mostly hot glue to put it all together. I also used the new Gorilla glue II which dries 2x faster than the original. complete dry to the touch within 30 minutes. just make sure you moist the both surface when you apply glue this will make it activate faster. I used it on critical sections such as the wings...
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Old Dec 19, 2011, 08:44 PM
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Joined Oct 2009
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Up-date on larry ross

Well I Skyped with Larry today and,,,
he looks great but still going thru Kimo...
His spirits are up ,,,
But Both his computers are hurting..
We managed to talk using his laptop..
Not Larrys style..
But he will return soon ..
He's doing some building ,but taking it easy for now...
For some of you new guys ..........Larry was our own PDF pro..
And thanks to him for alot of plans,,,
He could make a set of PDF of a fly,,
if you could send him some good photo's
The twins cargo, seadart, Skycart, and polaris among many other sites on RC Group..
So Larry will be building and fixin his confussers,,, as we speak..
He's a fighter for sure..
We'll be so glad to see him back on here..
Later,
Lenny
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Old Dec 20, 2011, 11:16 AM
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Joined Aug 2010
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Quote:
Originally Posted by lennyboy View Post
Well I Skyped with Larry today and,,,
he looks great but still going thru Kimo...
His spirits are up ,,,
But Both his computers are hurting..
We managed to talk using his laptop..
Not Larrys style..
But he will return soon ..
He's doing some building ,but taking it easy for now...
For some of you new guys ..........Larry was our own PDF pro..
And thanks to him for alot of plans,,,
He could make a set of PDF of a fly,,
if you could send him some good photo's
The twins cargo, seadart, Skycart, and polaris among many other sites on RC Group..
So Larry will be building and fixin his confussers,,, as we speak..
He's a fighter for sure..
We'll be so glad to see him back on here..
Later,
Lenny
Thank You Lenny
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