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Aug 24, 2012, 11:43 AM
whiirrrrrr
srt8madness's Avatar
Quote:
Originally Posted by EricClark
"Stock" is supposed to be 5.25-6.0lbs..... so not even close to a pound over "stock" my friend. Where did you get the 1.5-2 lbs figure? Also, I'm not overpowering anything, I'm just trying to swing a scale 4 bladed prop effectively. And I'm not taking any offense.

Eric
6.5 + 7oz, lets call it 7 lbs. That's 1lb over on the low side, and 1.75 on the high. That's IF you go with the 6s(which you said you probably wouldn't). But 6.9 pounds is preeeetty close to a pound over lol. Again, not that there is anything wrong with that. I do look forward to seeing the 4 blader! What size are you looking to run?
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Aug 24, 2012, 05:16 PM
AMA - 734492
EricClark's Avatar
Quote:
Originally Posted by srt8madness
6.5 + 7oz, lets call it 7 lbs. That's 1lb over on the low side, and 1.75 on the high. That's IF you go with the 6s(which you said you probably wouldn't). But 6.9 pounds is preeeetty close to a pound over lol. Again, not that there is anything wrong with that. I do look forward to seeing the 4 blader! What size are you looking to run?
Ok ok, fair enough.

I'm using the FMS 1400mm P-51 blades attached to a hub I built (pics attached) so its a ~14" diameter prop that looks amazingly scale and beautiful in flight and on the ground.

Eric
Aug 25, 2012, 12:54 PM
Warbird Enthusiast
LICobra's Avatar
I got to try out the VQ struts at a local all electric fly in today.....this field had a very nice asphault runway....which is something im not used to since im usually flying off of grass fields.....the struts worked well and the 4 blade pulled her around the field at a very respectable pace. next time I'll use the GPS and see what she does in level flight.
Aug 25, 2012, 01:16 PM
AMA - 734492
EricClark's Avatar
Quote:
Originally Posted by LICobra
I got to try out the VQ struts at a local all electric fly in today.....this field had a very nice asphault runway....which is something im not used to since im usually flying off of grass fields.....the struts worked well and the 4 blade pulled her around the field at a very respectable pace. next time I'll use the GPS and see what she does in level flight.
Hey!! Yours looks just like mine... and here I thought I was being original, lol.

Seriously though, what 4 blade are you using and what motor/battery/esc makes it work??

Eric
Aug 25, 2012, 02:38 PM
Registered User
flmlm's Avatar
Thanks for sharing Eric. I'm on the way to finishing my second eflite mustang and the more I look at it the more I see the need for a four blade prop.

Regards
Mike
Aug 25, 2012, 03:56 PM
Warbird Enthusiast
LICobra's Avatar
Quote:
Originally Posted by EricClark
Hey!! Yours looks just like mine... and here I thought I was being original, lol.

Seriously though, what 4 blade are you using and what motor/battery/esc makes it work??

Eric
E...The prop is an APC glo 4 blade (15.5X12) cut down to 13X12. The motor is a Scorpion 4025-550kv, esc e-flite 60A and 3600 4S lipo....with 5 minute flight times leaving 30% capacity.
Aug 29, 2012, 09:04 AM
Registered User
cobra243's Avatar

Mustang for sale


Hey guys im selling my airframe venom charger and (2) 3s 2200 gforce lipos with a lot of extras on ebay check out the listings.

http://www.ebay.com/itm/230844126191...84.m1555.l2649

http://www.ebay.com/itm/230844103239...84.m1555.l2649

http://www.ebay.com/itm/230844146783...84.m1555.l2649
Last edited by cobra243; Aug 29, 2012 at 12:44 PM.
Sep 01, 2012, 11:26 AM
Registered User
sbakr23's Avatar

Cg


Where have you guys found the CG to be generally? I measured back from where the wing leading edge meets the fuse, and set it per the range set in the manual. I now balance towards the back of the range, but am getting a little leary of being tail heavy. I am at 4 1/4 in. back. The reason I ask is my manual is vague, it says set CG from position shown. But the pic shown has no pointer and I am assuming it is at the wing root they mean.
Sep 01, 2012, 03:37 PM
whiirrrrrr
srt8madness's Avatar
I believe my manual says from "where the wing meets the fuselage "
Sep 01, 2012, 04:08 PM
Registered User
Mine didn't fare so well on my madin....
CG was WAYYYY off even after balancing it and didn't have enough speed on T/O. It's fixable but need a new cowl, canopy and epoxy...
Sep 01, 2012, 04:16 PM
AMA - 734492
EricClark's Avatar
Quote:
Originally Posted by sbakr23
Where have you guys found the CG to be generally? I measured back from where the wing leading edge meets the fuse, and set it per the range set in the manual. I now balance towards the back of the range, but am getting a little leary of being tail heavy. I am at 4 1/4 in. back. The reason I ask is my manual is vague, it says set CG from position shown. But the pic shown has no pointer and I am assuming it is at the wing root they mean.
I agree with you, the manual DOES NOT truly specify where to measure, it just says from the leading edge.... well, it varies a LOT because of that angled part of the wing so its rather confusing. My first flight was very tail heavy, but don't worry if you miss the mark slightly, it still flies like a champ... I was impressed. I landed multiple times and moved the battery about an inch forward every time per test flight until I found a "sweet spot". Its a wonderful plane, and for those who might argue with me about the manual.... take a look at the attached picture directly from the manual that you can find online at horizonhobby.com and which is also identical to the one I received with my P-51B.

Eric
Sep 01, 2012, 04:18 PM
AMA - 734492
EricClark's Avatar
Quote:
Originally Posted by fnlrun
Mine didn't fare so well on my madin....
CG was WAYYYY off even after balancing it and didn't have enough speed on T/O. It's fixable but need a new cowl, canopy and epoxy...
Sorry to hear, I did the exact same thing on my first P-51's maiden... not enough speed... and potentially incorrect CG as I measured it that same on my 2nd and while it had plenty of power, it was pretty tail heavy. Bad combo that. What motor/prop are or were you using?

Eric
Sep 01, 2012, 05:17 PM
Registered User
Quote:
Originally Posted by EricClark
Sorry to hear, I did the exact same thing on my first P-51's maiden... not enough speed... and potentially incorrect CG as I measured it that same on my 2nd and while it had plenty of power, it was pretty tail heavy. Bad combo that. What motor/prop are or were you using?

Eric
14*9 prop and an eflite 46
Sep 02, 2012, 12:28 AM
Registered User
V2rider's Avatar
Quote:
Originally Posted by EricClark
I agree with you, the manual DOES NOT truly specify where to measure, it just says from the leading edge.... well, it varies a LOT because of that angled part of the wing so its rather confusing. My first flight was very tail heavy, but don't worry if you miss the mark slightly, it still flies like a champ... I was impressed. I landed multiple times and moved the battery about an inch forward every time per test flight until I found a "sweet spot". Its a wonderful plane, and for those who might argue with me about the manual.... take a look at the attached picture directly from the manual that you can find online at horizonhobby.com and which is also identical to the one I received with my P-51B.

Eric
It may not say it in the manual for this one, but every other E-Flite and H9 plane I have measures the cg from the leading edge at the fuse. That almost always the safe point to measure from. A lot of planes furthest forward point on the wing is at the fuse. If anything going from there you may end up nose heavy.
Sep 02, 2012, 01:08 AM
whiirrrrrr
srt8madness's Avatar
Quote:
Originally Posted by EricClark
I agree with you, the manual DOES NOT truly specify where to measure, it just says from the leading edge.... well, it varies a LOT because of that angled part of the wing so its rather confusing. My first flight was very tail heavy, but don't worry if you miss the mark slightly, it still flies like a champ... I was impressed. I landed multiple times and moved the battery about an inch forward every time per test flight until I found a "sweet spot". Its a wonderful plane, and for those who might argue with me about the manual.... take a look at the attached picture directly from the manual that you can find online at horizonhobby.com and which is also identical to the one I received with my P-51B.

Eric
No argument my man, you're right!


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