3D/Foamboard High Performance F-16 Discussion and Design

Houndpup Rc

Legendary member
First section of the scoop done!
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telnar1236

Elite member
Looks good. It's coming along quickly now. Are the pins joining the sections removable? One thing you might consider is lengthening them and using screws to connect the sections instead of glue, at least some of the time - it makes life so much easier if you need replace a part.

Also remember, with 3D printed planes, you pretty much always need less structure than you think you do.
 

Houndpup Rc

Legendary member
Looks good. It's coming along quickly now. Are the pins joining the sections removable? One thing you might consider is lengthening them and using screws to connect the sections instead of glue, at least some of the time - it makes life so much easier if you need replace a part.

Also remember, with 3D printed planes, you pretty much always need less structure than you think you do.
Yeah...Troubles is I have never handled anything that was 3D printed (besides TPU) so I am not quite sure how strong/heavy it is...
 

Mid7night

Jetman
Mentor
I won't say never, but a 150 mph foam board EDF strikes me as unlikely without a lot of it not being foam board. The combined low thrust of an EDF unit and high drag of a foam board airframe doesn't strike me as particularly good for speed
I don't care if it's 3D printed or foamboard, he ain't goin' 150mph with all that ordinance! :p

But seriously, it comes down to the power system more than the airframe. I made a flying "arrowhead" several years ago that I called the "Harpoon", and with the right EDF I think that would go 150mph. It's all in how you balance it. :D

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L Edge

Legendary member
I was doing more structure to the scoop because its going to be a belly lander 👍
One thing you forgot(beside a belly lander ) is the untrained pilot who bounces his plane in.
You are right on because when your landing and it goes ker-plop, battery being above, will have a large "G" force, which will rearrange your duct and cause major damage to EDF if foam pieces are ingested. I suggest you do a fixed nose landing gear going thru the ducting and strengthen the fuse.
Watch that happen twice at AMA field with a Hobby Lobby F-16 did it's thing.

Second point, if your battery is going to partly or totally over the cantilever nose, you better strengthen the fuse to the wing, or it will snap. Even with low "G's". It is like a diving board.

Agree with Midknight, need to remove all that external junk if you want some decent speed.
Hobby King also had a problem with the setup of elevons which caused interference airflow problems at certain angles of attack in flight.
 

telnar1236

Elite member
But I want it to look sweet as well as fly nice!😂 If I want to go 100% speed than I will do something more like @telnar1236 did..
Easy option is to make the ordnance removable. The F-16 is a pretty slick design without it, and that way you can add it back in if you like the look of it. Personally, I found that ordnance on the 64mm F-16 from eflite a few years back hurt not just the top speed but the overall flight characteristics too, and made the plane a bit more squirrelly, with the exception of the wingtip sidewinders which made it fly much better.
 

Houndpup Rc

Legendary member
Easy option is to make the ordnance removable. The F-16 is a pretty slick design without it, and that way you can add it back in if you like the look of it. Personally, I found that ordnance on the 64mm F-16 from eflite a few years back hurt not just the top speed but the overall flight characteristics too, and made the plane a bit more squirrelly, with the exception of the wingtip sidewinders which made it fly much better.
Yeah, I was planing on having them slid in and either screw or click in place, but have them removable for sure (y)