RE: World Models .60 size P-51 Mustang--Petie 2nd version  
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RE: World Models .60 size P-51 Mustang--Petie 2nd version - 1/6/2005 5:48:10 PM   
Richard L.



Posts: 8775
Joined: 7/28/2002
From: Redmond, WA, USA
Status: offline
quote:

ORIGINAL: rare_bear

would i be better off using a higher torque servo on the flaps?


I would use high torque servo on the flaps. Those flaps have pretty big area, and when you deploy them, there is a lot of force acting against them. I was using standard servo on the flaps for my TF P-40E, and when I dropped the flaps, the servo gear stripped.

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(in reply to rare_bear)
       Post #: 151

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/6/2005 9:04:53 PM   
rare_bear



Posts: 1164
Joined: 3/20/2003
From: north of the basin, CA, USA
Status: offline 		thanks richard.
i should just look at dave's mustang the next time he brings it to the field.

(in reply to Richard L.)
       Post #: 152

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/6/2005 9:46:43 PM   
viper21


 

Posts: 912
Joined: 3/13/2002
From: Orange, CA, USA
Status: offline 		Richard and all, I emailed Bruce at CJM to see if they had a drop in replacement retract with a strut I told him I needed a pair of retracts and struts. The ones he sent me a picture are mechanicals which is not problem I can just buy a JR 260 oz retract servo and I am sure that will haul the strut and a 3.5 Robart wheel so it would look more scale. When I asked him he said I would probably need to make major modifications to install the retracts and he asked me to send him a picture of the wing with a ruler showing him the distance of the center of the wheel to the retracts. So I will take some digital pictures and send them to him and see if he can make a set of retracts to fit my plane. I tried Robo Struts but the offset strut I would need to clear a 3.5 wheel half the wheel and strut would hang out in the breeze. I thought I would just lower the wheel wells but there is only about a 1/8" between the wheel well cup and the top sheeting so it cant be moved so I thought maybe a CJM would have something to fit so I attached the picture. I forgot to add that for 100:00 extra they could make them pneumatic and not mechanical.
Viper

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< Message edited by viper21 -- 1/6/2005 9:49:07 PM >

(in reply to rare_bear)
       Post #: 153

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/14/2005 4:27:14 PM   
Phantom pty



Posts: 153
Joined: 5/25/2004
From: Panama City, PANAMA
Status: offline 		OK Got my order confirmed last night so in a few days I will have my WM P51 arriving ..

Will be the first and only WM P51 Petie 2nd here in Panama .. Most are H9 and TF 60

Now I am on the look for the best Engine combination for this bird.. I have my mind on the
SAITO 1.00 or the YS 1.10 although this last one seems to me as to much power for this
8.5 pound plane.

Also have sitting a OS 61 FX with aprox 40 flights which might serve well

As we are at sea level engines tend give very good performance and power is not a problem..

I will wait until Aircraft is here to have a better idea of what to use on it

Viper any reports on yours what did you finaly end up using in yours...

Would like to hear some comments on the guys using the YS 110 or Saito 120 since everyone
tells me here would be over powered...

< Message edited by Phantom pty -- 1/14/2005 4:29:22 PM >

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(in reply to viper21)
       Post #: 154

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/14/2005 6:30:55 PM   
viper21


 

Posts: 912
Joined: 3/13/2002
From: Orange, CA, USA
Status: offline 		Phantom, I am going to use my new OS Surpass Pumped III with an Slimline inverted pitts muffler. I wont be using CJM Retracts. I will probably try installing Robo Struts on the stock mechanical retracts and a very strong retract servo. I may go with Robart pneumatic retracts but if I do I will probably have to do some work on the retract plates. One thing I strongly recommed that if you have this plane you take out the retracts and look inside with flashlight. I found some sheeting not glued down to the rib that holds the mounts in place. If I need to move the mounts down so the Robo Struts will come up into the wheel well I will also use some fiberglass and epoxy to strengthen the mounts infact I am going to do that anyway. Make sure you take the retracts out and CA the holes for the wood screws that hold in the retracts. I looked at the retracts and they seem to be pretty decent and their frames are made from sometype of reniforced plastic and I didnt find any side play in them. So I may just install the Robo Struts first.
Viper

< Message edited by viper21 -- 1/14/2005 6:33:06 PM >

(in reply to Phantom pty)
       Post #: 155

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/15/2005 1:09:32 AM   
MustangAce



Posts: 855
Joined: 8/24/2003
From: Old Hickory, TN, USA
Status: offline 		I have the YS110 in mine at 800ASL.

Flys great, really fast. Perfect match.

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(in reply to viper21)
       Post #: 156

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/17/2005 2:16:41 PM   
Phantom pty



Posts: 153
Joined: 5/25/2004
From: Panama City, PANAMA
Status: offline 		Guys need some help here....

Been in contact with main Web Shops and everybody seems to be out of Stock on the YS 110
can anybody tell me were can I find one ....??

This Mustang would definately be a niceone with the sound and power of a YS..

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(in reply to MustangAce)
       Post #: 157

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/20/2005 2:25:20 AM   
rare_bear



Posts: 1164
Joined: 3/20/2003
From: north of the basin, CA, USA
Status: offline 		if you can afford the 110, go with it.

and don't let people tell ya it's overpowered. be the first one to make them drool when they see you tearing up the sky.

i have a 110 in an acrobatic 60 sized plane which weighs 8.5 pounds and it's a perfect match. i can go vertical without coming to a stop which makes for impressive verticals right after takeoffs. of course, with a mustang, it's all about speed and you'll have that.

you also do not have to fly full throttle like you might if you had less power... and this equates to less stress on the engine and therefore, longer life.... saves gas too. most of the time on my acrobat, i am at 2/3 throttle.

of course, you'll want to open up the 110 and fly at top speeds. your buddies will be impressed and you will be glad you put it in.

keep in mind that there is a steeper learning curve on tuning the YS engine properly. once in tune, it doesn't go out of tune for quite some time.... and it's not really all that hard to tune like some people might tell you. they tell you that because they probably couldn't tune the engine themselves properly.... or they go by word of mouth.

here is a good link:
http://home.comcast.net/~mark.fuess/ys110.htm

just my opinion of course

(in reply to Phantom pty)
       Post #: 158

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/20/2005 2:35:37 AM   
Richard L.



Posts: 8775
Joined: 7/28/2002
From: Redmond, WA, USA
Status: offline
quote:

ORIGINAL: rare_bear

and it's not really all that hard to tune like some people might tell you. they tell you that because they probably couldn't tune the engine themselves properly.... or they go by word of mouth.



Ditto on that. I've been arguing with people over in the engines forum about YS tuning. The fact of a matter is YS engines are not difficult to tune if people would learn how to listen to the engine and use their brains. Anybody with an average IQ can tune a YS.

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(in reply to rare_bear)
       Post #: 159

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/21/2005 1:28:41 AM   
lectronx


 

Posts: 9
Joined: 1/11/2005
From: , CA, USA
Status: offline 		HI ALL
GETTING THE WM P-51 TODAY. LOST THREAD ON SERVOS. ARE HS-325HB's GOING TO BE ENOUGH FOR RUDDER/AILRONS/THROTTLE?? USING RETRACT SERVO HS-75BB ON GEAR AND HIGH TORQUE HS-77BB FOR FLAPS. ADDING A LITTLE STRONGER HS-475HB FOR ELEVATOR. ANY NEED FOR LOW PROFILE DEVICES? NOTHING SPECIFIED IN DOWNOADED PDF INSTRUCTIONS FOR THIS PLANE. THANKS A LOT, EDDIE

(in reply to Richard L.)
       Post #: 160

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/21/2005 3:57:56 AM   
rare_bear



Posts: 1164
Joined: 3/20/2003
From: north of the basin, CA, USA
Status: offline 		I just got my servos in today.
Here's the lineup:

JR791 - retracts (260oz)
HS645MG - flaps, elevator (106oz)
HS425BB - rudder, aielrons, throttle

(in reply to lectronx)
       Post #: 161

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/23/2005 5:28:47 AM   
lectronx


 

Posts: 9
Joined: 1/11/2005
From: , CA, USA
Status: offline 		Thanks Bear.. I've beefed up the servo size.
Will an Optic 6 work with this WM Setup. How come the instructions with the Petie say 6-CH Radio. I bought the Hitec today but can't find a way to control all 7 servos with this six channel Tx and the Surpreme Rx????

(in reply to rare_bear)
       Post #: 162

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/23/2005 12:59:53 PM   
taildraggerdave


 

Posts: 956
Joined: 8/30/2002
From: Sun Valley, CA, USA
Status: offline 		Use a Y harness for the ailerons.

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       Post #: 163

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/23/2005 6:05:06 PM   
viper21


 

Posts: 912
Joined: 3/13/2002
From: Orange, CA, USA
Status: offline 		Does anyone know where I can get a YS 110? I have been looking for one but no luck?
I will most likely run digital servos on the flight controls? I have some really nice and new Airtronics coreless non digitals I might use they came with my Stylus and I never used them. They are about 90-100 ounces of torque so they should work I think think they are 94731's and I have two new 732's I could use also. But digitals are tempting especially since I want to install a YS 110?
Viper

< Message edited by viper21 -- 1/23/2005 6:06:27 PM >

(in reply to taildraggerdave)
       Post #: 164

RE: World Models .60 size P-51 Mustang--Petie 2nd ver... - 1/23/2005 6:34:38 PM