RE: World Models .60 size P-51 Mustang--Petie 2nd version  
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All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> RE: World Models .60 size P-51 Mustang--Petie 2nd version
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RE: World Models .60 size P-51 Mustang--Pe... - 4/18/2007 1:22:12 AM   
Captain DeadStick



Posts: 122
Joined: 10/28/2004
From: Agoura Hills, CA, USA
Status: offline 		Question for all you guys flying these 60 or smaller size birds with the YS110. What servos are you using? I've got a new YS110 which will probably land in a Little Toni or The Petie from this thread. I'm thinking high torque digi's are the way to go with the speeds this combo should see? I'm leaning towards the Futaba 3152's. Any thoughts or suggestions...I apoligize if this info is already buried in this thread somewhere.

(in reply to rare_bear)
       Post #: 826

RE: World Models .60 size P-51 Mustang--Pe... - 4/18/2007 4:00:45 AM   
taildraggerdave


 

Posts: 956
Joined: 8/30/2002
From: Sun Valley, CA, USA
Status: offline 		I'm a big fan of Hitec digitals over any of the others. Compare costs on similar servos and I have found that Hitec is about half of what a comparable Futaba servo costs.....


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(in reply to Captain DeadStick)
       Post #: 827

RE: World Models .60 size P-51 Mustang--P... - 4/18/2007 8:55:55 PM   
Captain DeadStick



Posts: 122
Joined: 10/28/2004
From: Agoura Hills, CA, USA
Status: offline 		I figure digi's would hold center better at the higher speeds of these planes. Which Hitecs do you use Dave? Are you using a 5 cell pack as well?

(in reply to taildraggerdave)
       Post #: 828

RE: World Models .60 size P-51 Mustang--P... - 4/19/2007 12:13:10 AM   
taildraggerdave


 

Posts: 956
Joined: 8/30/2002
From: Sun Valley, CA, USA
Status: offline
quote:

ORIGINAL: Captain DeadStick

I figure digi's would hold center better at the higher speeds of these planes. Which Hitecs do you use Dave? Are you using a 5 cell pack as well?



HS5645 servos and a 5 cell pack should be more than fine.

_____________________________

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2006 NATC Sportsman 5th Scale Champion

(in reply to Captain DeadStick)
       Post #: 829

RE: World Models .60 size P-51 Mustang--P... - 4/23/2007 2:40:16 PM   
crackajack


 

Posts: 20
Joined: 2/2/2007
From: Melbourne, AUSTRALIA
Status: offline 		Hi All,
Can some one please put me onto a hobby shop who has the Petie 2nd decals in stock and would post them to Australia? I have been waiting 7 months to get them locally. Hopeless here. I get things so much faster from Overseas.

Any contacts will be much appreciated.

Cheers
CJ

(in reply to taildraggerdave)
       Post #: 830

RE: World Models .60 size P-51 Mustang--P... - 4/24/2007 2:18:24 AM   
BeechTech



Posts: 50
Joined: 3/20/2005
From: Ramona, CA, USA
Status: offline 		I would try http://www.airborne-models.com/ they are the us distibutor.

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       Post #: 831

RE: World Models .60 size P-51 Mustang--P... - 4/24/2007 5:24:52 AM   
hummingbird111



Posts: 338
Joined: 2/27/2005
From: Nashville, TN, USA
Status: offline 		got things put together exept the cowling ,,did the break in on the engine,,, now it's ready for the maiden,, ,,,. with the YS 110 i got idle at 2200 rpm---- high end i could only get 8900 rpm,,, im sure it'll get higher when the rings seat,,.

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(in reply to BeechTech)
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RE: World Models .60 size P-51 Mustang--P... - 4/25/2007 4:57:36 AM   
rare_bear



Posts: 1164
Joined: 3/20/2003
From: north of the basin, CA, USA
Status: offline 		8900?

what prop do you have on there?

(in reply to hummingbird111)
       Post #: 833

RE: World Models .60 size P-51 Mustang--P... - 4/25/2007 11:07:36 AM   
hummingbird111



Posts: 338
Joined: 2/27/2005
From: Nashville, TN, USA
Status: offline 		i'm using a 14 x 12 APC,,does that sound right?
that's what i broke my last YS 110 in on,,,i couldn't find a 14 x 10, so i used the 14 x 12

< Message edited by hummingbird111 -- 4/25/2007 11:12:00 AM >

(in reply to rare_bear)
       Post #: 834

RE: World Models .60 size P-51 Mustang--P... - 4/25/2007 4:42:22 PM   
ghostrider168


 

Posts: 76
Joined: 1/31/2006
From: Walnut, CA, USA
Status: offline 		Anyone planning to use pneumatic retract system on this plane and if you are, which system or manufacture are you using?

< Message edited by ghostrider168 -- 4/26/2007 1:10:43 AM >

(in reply to hummingbird111)
       Post #: 835

RE: World Models .60 size P-51 Mustang--P... - 4/25/2007 5:20:17 PM   
rare_bear



Posts: 1164
Joined: 3/20/2003
From: north of the basin, CA, USA
Status: offline 		That would work....

The 14x12 was my standard prop for the YS140 which turned it at about 10,2000-10,300 with 30% nitro.

For the YS110, I ran an APC 13x13N in the mid 10,000's.

For our smaller 40 sized warbirds with a 110, we run APC 13x10's and turn about 11,400-11,700 or so.


With a constant pitch, the RPM's translate into speed as the prop is like an airfoil corkscrew.... and it takes horsepower & torque to get the RPM's.... but as you gain airspeed, the aerodynamic resistance increases by the 4'th power of airspeed or so - so eventually, you hit a wall and just can't go any faster (that, coupled with prop stall)

Also, when you get above 10,200 RPM's, the sound of the 110 really comes alive (if you have it straight-piped)


(in reply to hummingbird111)
       Post #: 836

RE: World Models .60 size P-51 Mustang--P... - 4/25/2007 5:28:42 PM   
hummingbird111



Posts: 338
Joined: 2/27/2005
From: Nashville, TN, USA
Status: offline 		yes indeed,,, ,, but before my last petie went down,, then it was really fast,, it's been a while since i have had a really nice one,, and i had the same setup on the last Petie,, well i hope i have my battery connection right on this one hee hee,, i have the JR 1650mah 4 cell pack,,,mabey i should get a 5 cell,, huh? ,,, well any hoo,, i'm waiting on the good weather day for the maiden,,


>--- VAROOM!!!!!!---------->

(in reply to rare_bear)
       Post #: 837

RE: World Models .60 size P-51 Mustang--P... - 4/26/2007 3:02:56 PM   
rare_bear



Posts: 1164
Joined: 3/20/2003
From: north of the basin, CA, USA
Status: offline 		5 cell packs:

make sure they do not cause your receiver to malfunction.

when you first charge batteries, they carry maximum voltage (so a 5 cell may put out 7 volts initially)

if the receiver does not have a built-in voltage regulator, the extra voltage may cause problems - as it has done with my hitek receivers.

in summary, i once hooked up a fully charged 5 cell pack to my receiver and the landing gear would go whacko when i pulled on the elevator stick. i switched back to a 4 cell and everything was a-ok.

so..... test it out first with a FULLY CHARGED pack before taking it up to the sky.



i only use 4-cell packs. the electronic parts inside most receivers are 3.3 volt parts anyways. a fully charged 4-cell pack starts out at 5.5 volts or so... and rarely, do i take it much below 4.3 volts. they are rated at 4.8 volts.... so it's not like the receiver is going to ever see under-voltage conditions (unless the power switch fails - hehehe)


(in reply to hummingbird111)
       Post #: 838

RE: World Models .60 size P-51 Mustang--P... - 4/27/2007 6:56:41 AM   
hummingbird111



Posts: 338
Joined: 2/27/2005
From: Nashville, TN, USA
Status: offline 		well i'm using the Hitec 8 channel supreme # 2 it's the new one Hobby lobby sells,, -- i suppose i'll just stick to the 4 cell pack,, i wasn't sure if it--5 cell--- would be any better ,,

< Message edited by hummingbird111 -- 4/27/2007 7:08:33 AM >

(in reply to rare_bear)
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RE: World Models .60 size P-51 Mustang--P... - 4/27/2007 7:20:19 PM   
Captain DeadStick



Posts: 122
Joined: 10/28/2004
From: Agoura Hills, CA, USA
Status: offline
quote:

ORIGINAL: hummingbird111

well i'm using the Hitec 8 channel supreme # 2 it's the new one Hobby lobby sells,, -- i suppose i'll just stick to the 4 cell pack,, i wasn't sure if it--5 cell--- would be any better ,,


5 cells will give you more torque and a faster reponse time with the trade off being a faster discharge. If the servos you're using have adequate specs at 4.8v might as well use a 4 cell pack?

(in reply to hummingbird111)
       Post #: 840