Depron F14 Tomcat scratch build    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version



All Forums >> Electric Aircraft Universe >> Foamies! - RC Electric Foam Aircraft >> Depron F14 Tomcat scratch build Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
Depron F14 Tomcat scratch build - 9/15/2009 9:06 PM   
Foam Head Mike



Posts: 26
Score: 100
Joined: 9/14/2009
Last Login: 11/3/2011
From: Rossville, GA, USA
Status: offline 		Hey Fellas
I am new here but I am excited to be here!

I thought I would share my Build photos with you and try to explain what is what as I go
the build is a park Jet F14 Tomcat pusher prop jet if you feel you may want to build this jet you can download the plans at www.parkjets.com
the wings are full functioning swept wing, you can use EDF but I decided to go with a push prop on this one because I planon up scaling another build to 133% on the PDF. you can either use the elevons/Tailerons or you can choose to install rudders also but are not needed I will only be using elevons for lift and steering on this one but willl be going all out on the up scale.


Just getting started after taping together the file I used spray adhesive on the backs of the templates and placed them on poster board this way I can re use the templates numerous times for new builds


cutouts like this I will place back into the surrounding after use in order to identify it later


when I get ready to start transferring the parts templates to the foam I will place scotch tape doubled up on the back of the template then place on the foam, this will hold the template in place while cutting out the part I recomend using this procedure because the tomcat has a lot of curved parts and just makes it much easier to get a good clean cut by having a raised guide for the exacto blade to follow.


I also trace around the template onto the foam with a fine line sharpie this way I can keep the blade to the inside of the line and against the temp and helps me old eyes to see where to cut much better


a good tip here is to use a scalpel type blade for cutting because the regular triangle type blades have a tendency of snagging the back side of the foam when cutting through the curved blades will eleminate this problem and also seems to stay sharper longer


Another reason to tape the template to the foam is after you make the cut you can use a 80 grit sponge sanding block to square up the part against the template and also sand away any high spots, following this step will help ensure Identical mirror image parts and remember this build has lots of double cuts




once I get all my foam parts cut I jump right on in and layout and cut my plywood parts as well this wat all I have to do is begin assembling my air craft

Now theFUN Begins...

heres all my raw material that will soon become mechanical parts that move things around


Finally getting to the assembly...




I have to run but will upload more pics of my build when I get back


_____________________________

FOAM UP!

Hide Signatures
       Post #: 1

RE: Depron F14 Tomcat scratch build - 9/16/2009 1:44 PM   
Foam Head Mike



Posts: 26
Score: 100
Joined: 9/14/2009
Last Login: 11/3/2011
From: Rossville, GA, USA
Status: offline 		Continued



the bulkhead locations on the template of the forward fuse side pannels can be transferred from the template to the part by aligning the template to the part and marking with a sharpie then mark a line on the part with a straight edge. this will save time from trying to measure. once I have everything marked and prepped I then can proceed to assemble the forward fuselage and laminate the parts for the front nose and canopy.





I have prepped, glued and assembled all the pieces of my tunnel ram parts using extensive amounts of clamps to keep the expanding Gorillaglue from separating the parts.
Once everything is glued together I then mark the locations of the temporary bulk heads with a little ho-made square I cut from scrap piece of foam


although the plan only calls for one temporary bulk head each I cut 1 for each tunnel ram this way they can remain in the assembly until the duct's are completely assembled on the plane several steps away because the servo installation and wire routing will have to happen before the ducts can be completley assembled.
I did not glue in the bulkheads for the 6x9 mm strips will securley hold them in place good enough to assemble the parts remember mirror images are required so don't make the same parts one part will be assembled opposite from the other in order to make left and right sides.
Notice I have used a piece of tubing to make sure the holes are aligned also the assembly is draped over the edge of a piece of 9mm depron in order to make sure the box is square at the notch as explained in the assembly instructions Make sure to carefully read and follow the instructions step by step this way you will have no problems building this air craft.




While I am waiting for the tunnel ram assemblies to dry I can now proceed to shape the canopy and front nose notice that it dont take much to shape the parts as far as the amount of tools necessiary to do the job the forward bulk head sides will need to be contour sanded to blend in with the canopy, this procedure will need to be completley finished before installing the fan ducts/ AKA Tunnel rams



Once the Motor Mount assembly is made I can now proceed to permanently mate the fan ducts to the fuselage the assembly will need to be strategically clamped and weighted to make sure the glue joints are tight and the bottoms of the ducts are in line with each other this procedure needs to be done on a good flat surface

Now for building the swing wing mechanism...


now I can start prepping the previously cut parts by sanding and drilling. I used the doubled tape method to temporarily join the upper and lower box parts together in order to perfectly align the holes I used a couple of small drills as pilot holes in order to help with accurately placed holes. I used the same procedure drilling the wing bell cranks except I went ahead and laminated the 2 parts on each crank mechanism before drilling, there again to achieve total accuracy.
The instruction manual recommends to drill the holes after assembly I disagree with this step in the manual. I personally think it is much more accurate method of matching the parts together per assembly to drill the hole locations. using a drill press for this step is Highly recommended for utmost accuracy because this is a precision mechanical part.

Now that all the parts are prepped I can now assemble the mechanism...





Now I am ready to start building the functional wing. This is as far as I have got with the project thus far...




_____________________________

FOAM UP!

Hide Signatures

(in reply to Foam Head Mike)
       Post #: 2

RE: Depron F14 Tomcat scratch build - 9/17/2009 8:57 PM   
Foam Head Mike



Posts: 26
Score: 100
Joined: 9/14/2009
Last Login: 11/3/2011
From: Rossville, GA, USA
Status: offline 		Here are a couple more pics with the wings mockes up to the fuse just to see if the parts are a proper fit and actually looks like a Jet


Extended


Extended Front view


Swept


Comin At Ya!

< Message edited by Foam Head Mike -- 10/16/2009 6:05 PM >

_____________________________

FOAM UP!

Hide Signatures

(in reply to Foam Head Mike)
       Post #: 3

RE: Depron F14 Tomcat scratch build - 9/20/2009 2:13 AM   
slowstang88


 

Posts: 386
Score: 110
Joined: 2/3/2006
Last Login: 4/19/2013
From: Las Vegas, NV, USA
Status: offline 		wow, nice work!

Hide Signatures

(in reply to Foam Head Mike)
       Post #: 4

RE: Depron F14 Tomcat scratch build - 9/23/2009 12:23 AM   
Foam Head Mike



Posts: 26
Score: 100
Joined: 9/14/2009
Last Login: 11/3/2011
From: Rossville, GA, USA
Status: offline 		Thanks MD

this build is on hold until parts arrive AKA waiting on wifeypoo to give me my bi weekly allowance to buy more stuff for the jet.

_____________________________

FOAM UP!

Hide Signatures

(in reply to slowstang88)
       Post #: 5

RE: Depron F14 Tomcat scratch build - 10/16/2009 6:15 PM   
Foam Head Mike



Posts: 26
Score: 100
Joined: 9/14/2009
Last Login: 11/3/2011
From: Rossville, GA, USA
Status: offline 		Update.


I have the turtle deck assembled and getting it positioned on the wing deck



everything is lining up so now I will remove the turtle deck and mark my center lines and mark my hatch opening before permanently gluing the turtle deck in place.


First I did some paint tests just to see how much more foam I need to remove for the parts to look to scale. It is easier for me to judge with a little paint on the model.


I then mark the center lines to make sure that the wing deck is exactly centered


with the wing deck in place I make lines across the hatch so I can transferr the marks to the turtle deck in order to cut out the hatch opening.


once I have my lines I position the turtle deck in place then mark the cut line. then cut out with a Xacto saw.


I did not like the servo trays in the original plan so I beefed them up with 9 MM depron


the linkage is built according to original specs.


the elevons fit up nicely so now I will sand them to shape before gluing them to the CF tube.


the nose is sanded to shape and looking good IMHO but will look a lot better once it is spackled and painted.

_____________________________

FOAM UP!

Hide Signatures

(in reply to Foam Head Mike)
       Post #: 6

RE: Depron F14 Tomcat scratch build - 10/21/2009 5:23 PM   
etotheo


 

Posts: 3
Score: 100
Joined: 10/18/2009
Last Login: 5/6/2010
From: Saskatoon, SK, CANADA
Status: offline 		Looking sharp!


Hide Signatures

(in reply to Foam Head Mike)
       Post #: 7

RE: Depron F14 Tomcat scratch build - 10/26/2009 10:03 PM   
etotheo


 

Posts: 3
Score: 100
Joined: 10/18/2009
Last Login: 5/6/2010
From: Saskatoon, SK, CANADA
Status: offline 		Looking forward to the next update!


Hide Signatures

(in reply to etotheo)
       Post #: 8

Page:   [1]
All Forums >> Electric Aircraft Universe >> Foamies! - RC Electric Foam Aircraft >> Depron F14 Tomcat scratch build
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.828RCU1