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1/7th F-14D Scratch build thread *building started*

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1/7th F-14D Scratch build thread *building started*

Old 02-27-2014, 09:41 AM
  #1351  
F14
 
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:d :d :d

great!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Old 02-27-2014, 10:01 AM
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Well done.
Old 02-27-2014, 03:53 PM
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Looks real good. Let's see it on the fuselage.
Old 02-27-2014, 04:25 PM
  #1354  
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Here's both wing panels with the flaps hinged yea, i've hinged the flaps already.. it took about 10 minutes per flap. Pre-installed stuff is SOOOOOO nice! Total available flap deflection, 110*





Old 02-27-2014, 05:03 PM
  #1355  
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For the first time in probably Six years, their is almost a complete airframe sitting in my shop!





Old 02-27-2014, 06:14 PM
  #1356  
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Wow!! What a fantastic piece of work.

Dan
Old 02-27-2014, 06:35 PM
  #1357  
yeahbaby
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nice work amigo!!!! BRILLIANT!!!!
Old 02-27-2014, 06:41 PM
  #1358  
Dwayne.G
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Thomas,
It's all about the detail. The P is starting to take shape.
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Old 02-27-2014, 08:48 PM
  #1359  
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That is a site to behold Thomas!!!. Beautiful, both inside, and out.
Old 02-27-2014, 09:05 PM
  #1360  
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Magnificent. I love following this tread.
Keep up the great work.
Old 02-28-2014, 05:47 AM
  #1361  
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FANTASTIC WORK!!!!! You are a hellava Engineer/Crafstman
Old 02-28-2014, 11:10 AM
  #1362  
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Super job Thomas, feels great to have this in the shop I think
Old 02-28-2014, 04:41 PM
  #1363  
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Thanks for the comments everyone!

i have decide the current fuselage is going to get hung from the ceiling after it has served its purpose of getting the last bits of the airframe working. Its just to heavy. I would like to shed 10 pounds off of it. So once i get some other stuff taken care of, i am going to start cutting out the glass and core material for fuselage #2.

But in the meantime:

Today i cut free the excess glass in the spoiler openings:



Then after i cut the right wing panel spoilers, i glued the spoiler hinges to all of the spoiler panels:





Bolted the pivot actuator bracket to the wing:





And cut out the servo openings in the bottom of the right wing panel. In all future moldings the hatch recesses will be molded in.


Old 03-01-2014, 09:15 AM
  #1364  
P. Richards
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Amazing work and a whole lot of time and money, this is a labor of love to scratch build your favorite aircraft. Take a break every now and then or you will get burned out. Thanks for posting this, I enjoy following build threads.

P. Richards aka SwatTeam

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Old 03-01-2014, 04:30 PM
  #1365  
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The spoilers on the right wing gave been hinged and the interconnect linkages and torque tube assembly all tack glued together.
The system works, but the linkage on the panel nearest the tip over-centers. Because of that, there is vino deflection at first and then the spoilers "pop" to Max deflection. I already know how to fix it, so it's no big deal, just a few new interconnect linkages to cut and more G code programming.












Old 03-01-2014, 08:27 PM
  #1366  
yeahbaby
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Duuuuudeee!!!!!!!
Old 03-02-2014, 05:31 PM
  #1367  
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Spent a few hours getting the right wing over center problem fixed and then got into doing the left wing panel.


It only took about 2 hours to do the left wing compared to 8-10 hours for the right.














Old 03-02-2014, 08:39 PM
  #1368  
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Good job Thomas.
Did you find someone to make the gear?
Old 03-02-2014, 08:42 PM
  #1369  
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Originally Posted by olnico
Good job Thomas.
Did you find someone to make the gear?
Sort of.. Sport scale gear i have, and i am waiting on one other guy to free up some time so he can start work on the design and construction of a highly scaled gear set.
Old 03-03-2014, 05:17 AM
  #1370  
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Those photos are stunning!
Again, can't wait do see a video about working (I mean using servos) flap and spoilers!!!
Great job Thomas, actually words are not good enough for such a marvel.

Angelo
Old 03-03-2014, 05:26 AM
  #1371  
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Originally Posted by F14
Those photos are stunning!
Again, can't wait do see a video about working (I mean using servos) flap and spoilers!!!
Great job Thomas, actually words are not good enough for such a marvel.

Angelo

http://youtu.be/PF31qZpqwhA
Old 03-03-2014, 08:47 AM
  #1372  
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Thank you very much Thomas, great video!!!
I still have a question regarding the pivot actuator bracket: as per the following image





in the real Tomcat the actuator is behind the pivot so I'm assuming that moving the bracket in front of the pivot, very close to it, and talking about the forces applied to the wings, you'll need much more power and strength in order to manage the sweep mechanism.
Let me try to explain better using another image:





I image the 5kg weight as the 'force' needed having the actuator placed as the real one, and the 100kg weight as the 'force' needed having the actuator placed in front of the pivot... sorry but as I'm not an English mothertongue sometimes is very difficult for me to explain well, so I hope you understood what I mean!

Angelo
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Old 03-03-2014, 05:26 PM
  #1373  
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Originally Posted by invertmast
So after finishing the cnc programming for the 120" skyraider flap hinges, i started the prgoramming on the spoiler panels and cut out the left wing inboard spoiler panel.


Heres a picture of it mocked up to the first wing panel:



The spoiler is actually slightly oversize on the front edge, reason being, the spoiler outlines were a PAIN to mold, so the perimeter of the wing isnt the best. So the spoilers are used to mark the trim line on the wing panel to adjust the wing edge to fit the panels perfectly.


Heres a shot of the top of the spoiler with its hinges mocked in place.



Now your probably wondering what is up with the darker portion.


The spoiler panels are machined from .093" G10. The "skin" is approx. .035" thick. This appr. .058" thick difference is the structure on the back side of the panel. There are also premachined slots for the spoiler hinges to slot into with just enough gap on either side to allow hysol to fit in.
Overall weight for this panel is 16 grams. All four panels per wing are roughly the same area, so a full set of spoiler panels for one wing should be 64 grams or 2.2oz.


Once i get the basic airframe completed, ill go back into CAD and draw up the details that are seen on the underside of the spoilers and then machine the plugs for that. Those will then be a very lightweight fiberglass molding that will get glued to the Spoiler panels


Thomas, instead of hogging out all that material why don't you just cut 2 pieces, one of the spoiler surface and one of the inner frame as a stiffner and then laminate the 2 together, It will probably save you quite a bit of machine time and tooling.
Old 03-03-2014, 05:30 PM
  #1374  
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Good question ian!

1. It looks cooler
2. It taught me a different way of doin things with the cnc router
3. It ensures there are no misalignment issues compared to a 2 piece setup
4. Its less material sizes to keep hold of
5. Less parts count

and lastly, its only 10-12 minutes per spoiler panel to cut them out like this.

Overall, it would be quicker and easier to do multi part spoiler panels, i just like to do things slightly more difficult. Lol
Old 03-04-2014, 07:50 AM
  #1375  
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Great job! Awesome work!

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