RE: Skyshark P-40N Build  
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All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> RE: Skyshark P-40N Build
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RE: Skyshark P-40N Build - 1/16/2007 11:53:27 AM   
LDM


 

Posts: 4832
Joined: 5/29/2003
From: Denver, PA,
Status: offline 		Nice job FW , looks great

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RE: Skyshark P-40N Build - 1/18/2007 8:52:54 PM   
fockewulf37


 

Posts: 1159
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		Well I have to make a confession and an apoligy, I got so tied up into watching the season premier of "24" that I put the whole horizontal on and forgot to take any picture until I had it glued into place. Anyway I Put it on just as the plans said without any adjustment to the method......

TY

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RE: Skyshark P-40N Build - 1/18/2007 10:20:42 PM   
mobyal


 

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Joined: 1/2/2006
From: Lexington, VA, USA
Status: offline 		Neat thread. Thanks for doing it.
Al

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RE: Skyshark P-40N Build - 1/18/2007 10:49:31 PM   
fockewulf37


 

Posts: 1159
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		I did not put the rudder on or the elevators on because I mount my motor a little different. The way I do it you can't get the alignment off. It will be perfect everytime. First I measure the distance the the motor need to stand off the fuse. I am using a Quadra 40 XL instead of the 3.2. I may regret it later but the installation is much cleaner with the Q40XL. Using the Q40 I have to space the motor off the motor box 3/4" to clear the pitts muffler. So after all the figuring, I found that the motor box should stick out from the fuse about 2". I then marked the motor box and glued 2 small pieces of balsa on the line so the box could be inserted and only 2" stick out. I made a 3/4" standoff for the motor and drill the holes to match the backplate.

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RE: Skyshark P-40N Build - 1/19/2007 12:05:21 AM   
fockewulf37


 

Posts: 1159
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		I then went ahead and mounted the cowl. I followed the instructions except that I used 11 holes and I also used 6-32 Buttom head machine screws and I drilled and tapped into the hardwood. Once the cowl was totally mounted I was then ready to set up the motor.

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RE: Skyshark P-40N Build - 1/19/2007 1:17:35 AM   
fockewulf37


 

Posts: 1159
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		I then took 2- 3/4" pieces of 1/4-20 Nylon bolt and I screwed it into the backplate of the motor. These were then set into the 3/4"
standoff. I slid the motor box into the fuse . I then set the motor assembly onto the motor box and trial fit the cowl over the whole thing. Now to get the motor to fit perfectly you need to secure the fues standing on it tail. I then take 5 minute epoxy and place it on the motor stand off. I then place it and the motor back onto the motor box and quickly put the cowl on and several screwto hold the cowl in place. I then place the spinner on the motor. Now you are able to move to the motor into perfect position. You now just have to leave it standing there until the epoxy dries.
Ty

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RE: Skyshark P-40N Build - 1/19/2007 1:23:08 AM   
fockewulf37


 

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Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		Now remove the cowl and then remove the motor and then drill your hole that are in the 3/4" standoff through the motor box and the motor is in perfect position. This method works great even when trying to center a motor with a little right thrust in it..

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RE: Skyshark P-40N Build - 1/20/2007 5:03:32 AM   
LDM


 

Posts: 4832
Joined: 5/29/2003
From: Denver, PA,
Status: offline 		Great Job , please keep the pics coming , very educational

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RE: Skyshark P-40N Build - 1/23/2007 1:15:46 PM   
fockewulf37


 

Posts: 1159
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		Ok the next thing I did was to glue in the motor box to the fuse. I followed the instructions on this one. I sanded away teh paint and primer. They supply triangular stock to glue around the box. So I made sure my box was in the right place and I tack glued it in place with CA and then used 5 minute epoxy to glue all the triangular pieces in place. Then you have to repaet this on the inside of the fuse also.....

TY

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RE: Skyshark P-40N Build - 1/23/2007 1:21:39 PM   
fockewulf37


 

Posts: 1159
Joined: 3/19/2002
From: kannapolis, NC, USA
Status: offline 		I then went to install the elevators. Skyshark supplies the very small point hinges for teh elevator. Its probably just me I just don't think they are strong enough for planes with larger gas motors. So I drilled out the holes to fit the larger Robart point hinges. I did have to relieve a little on the elevator and trailing edge of the horizontal to get it to fit tightly just as i did on the alierons and flaps...I then glued into place as before..


Ty

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RE: Skyshark P-40N Build - 1/23/2007 10:31:41 PM   
Meschmidt


 

Posts: 352
Joined: 9/5/2002
From: Houston, TX, USA
Status: offline 		Ty, you are right, concerning the hinge points. I used the supplied smaller ones and already broke three under normal usage on the elevator and rudder. If another one breaks they are all going to be replaced with the big ones. Paul

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RE: Skyshark P-40N Build - 1/24/2007 9:27:25 PM   
bladerunner1955


 

Posts: 228
Joined: 2/21/2004
From: Huntington Beach, CA, USA
Status: offline 		Hey Ty,
Don the electric guy here, great information, thanks. Hey Ty I am going to be swinging a larger prop than the gas guys with less RPM but possibly more low end tork. What have you seen on the firewall in reguards to a little right off set to keep the plane on take off from pulling to much to the left? I do know how to use my thumb on the rudder but with the large electrics I have found it takes a little more than say with a gas set up.

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