HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Feb 17, 2012, 12:00 PM
Wingman II
diggity2424's Avatar
United States, KY, Louisville
Joined Sep 2011
1,245 Posts
Quote:
Originally Posted by zmonster97 View Post
Cool. So I would probably only need to add like .5 oz of weight. For the 4315, are you guys using the normal x mount or are you using the lightweight x mount. I'm guessing the normal one for the nose weight.
Yes , but depending on your battery type. If your running 3s 2200s in series like me, I would get as close to the 2.5oz if you were to use 3.75inch on the CG. Going with a heavy battery of course would mean less weight added.
diggity2424 is offline Find More Posts by diggity2424
Reply With Quote
Sign up now
to remove ads between posts
Old Feb 17, 2012, 01:03 PM
Team Aztech Aeromodels!
zmonster97's Avatar
United States, PA, Allentown
Joined May 2011
3,009 Posts
Ok thanks guys. Snowdog, please report back on how the cg is with the light x mount.
zmonster97 is online now Find More Posts by zmonster97
Reply With Quote
Old Feb 17, 2012, 01:03 PM
Registered User
SnowDog1974's Avatar
United States, IL, Crystal Lake
Joined Jan 2009
5,448 Posts
Quote:
Originally Posted by zmonster97 View Post
Ok thanks guys. Snowdog, please report back on how the cg is with the light x mount.
you bet I will...hopefully this weekend!
SnowDog1974 is offline Find More Posts by SnowDog1974
Reply With Quote
Old Feb 17, 2012, 01:04 PM
Team Aztech Aeromodels!
zmonster97's Avatar
United States, PA, Allentown
Joined May 2011
3,009 Posts
But then again your going to use 2800 batteries.
zmonster97 is online now Find More Posts by zmonster97
Reply With Quote
Old Feb 17, 2012, 01:08 PM
Registered User
SnowDog1974's Avatar
United States, IL, Crystal Lake
Joined Jan 2009
5,448 Posts
Quote:
Originally Posted by zmonster97 View Post
But then again your going to use 2800 batteries.
I've got some 3s2200's as well; I can check it with both sizes.
The difference in weight for the 2800's over the 2200's is 1.4oz.
Should be able to handle that by moving the pack 1/2 inch either way.
SnowDog1974 is offline Find More Posts by SnowDog1974
Reply With Quote
Old Feb 17, 2012, 02:50 PM
Team Aztech Aeromodels!
zmonster97's Avatar
United States, PA, Allentown
Joined May 2011
3,009 Posts
Cool. Thanks. And can somebody tell me how many amps they're pulling on the 4315-480 on a 15x7 prop. I'm trying to see if my batteries will be good enough.
zmonster97 is online now Find More Posts by zmonster97
Reply With Quote
Old Feb 17, 2012, 03:09 PM
Hooked on 3DHS
lammbn's Avatar
United States, ID, Boise
Joined Nov 2009
908 Posts
one thing to remember is that the 4315 is shorter so its weight is more concentrated on a greater arm from the center of gravity so it will have a greater moment than the 3620 at the same distance from the firewall. all of these motors have different dimensions so weight isnt the only factor, over what distance is that weight distributed makes a decent difference too.
lammbn is offline Find More Posts by lammbn
Reply With Quote
Old Feb 17, 2012, 03:11 PM
Hooked on 3DHS
lammbn's Avatar
United States, ID, Boise
Joined Nov 2009
908 Posts
Quote:
Originally Posted by zmonster97 View Post
Cool. Thanks. And can somebody tell me how many amps they're pulling on the 4315-480 on a 15x7 prop. I'm trying to see if my batteries will be good enough.
shoot for 50 to 55 amps and you should be good. i have heard that a 15x8 is about right for that motor. the 15x8 is actually the best prop for the 3620-480 too. but for some reason all my props 14x7 and up pull the same amperage from the motor. so i went with the one that performed the best. which was the 15x8 for me.
lammbn is offline Find More Posts by lammbn
Reply With Quote
Old Feb 17, 2012, 03:15 PM
Team Aztech Aeromodels!
zmonster97's Avatar
United States, PA, Allentown
Joined May 2011
3,009 Posts
Quote:
Originally Posted by lammbn View Post
shoot for 50 to 55 amps and you should be good. i have heard that a 15x8 is about right for that motor. the 15x8 is actually the best prop for the 3620-480 too. but for some reason all my props 14x7 and up pull the same amperage from the motor. so i went with the one that performed the best. which was the 15x8 for me.
Ok thanks. So then 15x8 it will be. Also is a xoar or apc prop better?
zmonster97 is online now Find More Posts by zmonster97
Reply With Quote
Old Feb 17, 2012, 03:23 PM
Hooked on 3DHS
lammbn's Avatar
United States, ID, Boise
Joined Nov 2009
908 Posts
i have not ran an xoar on this setup yet. my experience with them is that they pull a few less amps then their apc equivalent. i really would like to buy some more xoars to put on my planes because i have broken both the ones i had before on my 71. one in a decent crash and the other hitting a bump while taxiing. but the apc's get the job done and i have lots of other little things taking up the funds that seem more "necessary" than pretty props. i wish Mejzlik made a carbon fiber 19x10WE prop. i might be willing to spend the money then..
lammbn is offline Find More Posts by lammbn
Reply With Quote
Old Feb 17, 2012, 06:43 PM
Registered User
SnowDog1974's Avatar
United States, IL, Crystal Lake
Joined Jan 2009
5,448 Posts
Quote:
Originally Posted by lammbn View Post
i have not ran an xoar on this setup yet. my experience with them is that they pull a few less amps then their apc equivalent. i really would like to buy some more xoars to put on my planes because i have broken both the ones i had before on my 71. one in a decent crash and the other hitting a bump while taxiing. but the apc's get the job done and i have lots of other little things taking up the funds that seem more "necessary" than pretty props. i wish Mejzlik made a carbon fiber 19x10WE prop. i might be willing to spend the money then..
I've got two APC 15x7E props right now...Subsonic planes lists 15x7 and 15x8 as appropriate props for this plane. If I don't like the way the 15x7 feels, I'll get a 15x8. I agree with you - I'd like to use a Xoar wood prop, but maybe I'll wait a bit...I've already put quite a bit into this airframe already.
SnowDog1974 is offline Find More Posts by SnowDog1974
Reply With Quote
Old Feb 17, 2012, 07:10 PM
I fly, therefore, I crash!!!
SteveT.'s Avatar
San Jose, CA
Joined Jan 2008
26,455 Posts
APC's are ok in this size plane (though they do tend to draw a few more amps than Xoars)....it's not until you get to the bigger planes that they get kind of inefficient as they start flexing...

SteveT
SteveT. is offline Find More Posts by SteveT.
RCG Plus Member
Latest blog entry: My hangar...
Reply With Quote
Old Feb 17, 2012, 07:18 PM
Team Aztech Aeromodels!
zmonster97's Avatar
United States, PA, Allentown
Joined May 2011
3,009 Posts
I'd probably go with a xoar. So pretty much everybody is using a 15x8?
zmonster97 is online now Find More Posts by zmonster97
Reply With Quote
Old Feb 17, 2012, 08:20 PM
Registered User
United States, NJ, Clayton
Joined Aug 2010
1,580 Posts
Motrolfly!

This motor is sweet! Very beefy, I rather have the extra weight in the power system
keithy4129 is offline Find More Posts by keithy4129
Last edited by keithy4129; Mar 31, 2012 at 05:49 PM.
Reply With Quote
Old Feb 17, 2012, 08:33 PM
Team Aztech Aeromodels!
zmonster97's Avatar
United States, PA, Allentown
Joined May 2011
3,009 Posts
Quote:
Originally Posted by keithy4129 View Post
This motor is sweet! Very beefy, I rather have the extra weight in the power system
Thats a nice looking motor! It's very wide.
zmonster97 is online now Find More Posts by zmonster97
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion 60 inch edge 540 vs 48 inch extreme flight extra 300 & edge 540 vs 3dhs slick 51 & 59 CRFan1 3D Flying 40 Mar 04, 2012 02:45 PM
Sold 3DHS Omega 130g NIB 58.00 Shipped boatdoc Aircraft - Electric - Power Systems (FS/W) 9 Aug 28, 2011 09:16 AM
Discussion 3dhs edge 41" edge as second ish) plane? Mr Bloppy 3D Flying 19 Aug 25, 2010 09:43 AM
Wanted Wanted - 47" - 58" 3DHS, EF or Sebart plane paintball_kidz Aircraft - Electric - Airplanes (FS/W) 0 Jan 02, 2010 11:12 PM
Wanted 47"-58" size 3DHS, Sebart or Extreme Flight paintball_kidz Aircraft - Electric - Airplanes (FS/W) 13 Jan 02, 2010 12:52 AM