1/7th F-14D Scratch build thread *building started*
#1363
Thread Starter
My Feedback: (23)
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.
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.
#1364
My Feedback: (3)
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
P. Richards aka SwatTeam
Last edited by P. Richards; 03-04-2014 at 09:37 AM.
#1365
Thread Starter
My Feedback: (23)
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.
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.
#1370
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
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
#1371
Thread Starter
My Feedback: (23)
#1372
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
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
#1373
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Join Date: Aug 2002
Location: Scottsdale, AZ
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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
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
#1374
Thread Starter
My Feedback: (23)
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
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