1/7 Scale F3h2 Demon For 140 Size Turbines
 

Ultimate Jets is bringing the McDonnell F3h2 Demon to the model jet market in 1/7 Scale. This size is perfect for the new compact 140 turbines available today. The Demon has been one of my “bucket list” planes for a long time! My dad worked on the tooling for them at “MacAir”. I had started drawing a large Demon in CAD a few years ago and then I heard a rumor that Ultimate Jets was in the process of kitting the Demon. After many many conversations with Olivier Nicolas, I ended up with a pre production prototype in my sweaty hands! This is the second airplane pulled from the production tooling. I’ve been asked to assist in the product development of this ARF. Since mine is preproduction, I’m certain a few items will change as the process matures. The model came in a very odd shaped box for a 103” long jet...... it is almost square!
https://cimg3.ibsrv.net/gimg/www.rcu...d24d94ed3.jpeg
More on this as the story developes!

Tailwinds,

John

Looking forward to your build.

Hi John,
Well??? Get on with it! Pop that box open! :D

Ok Ron, here it is! The fuse splits into three pieces. There are Ultimate Servo Connectors at each joint and the wing connections. This makes transportation and assembly a little easier. The horizontal stabs are keyed in and easily removable along with the vertical fin. All of the control horns are internal. The whole jet came in the box measuring 36” X 46” X 20”.

Tailwinds,

John
https://cimg7.ibsrv.net/gimg/www.rcu...34ed7358d.jpeg

After 5 minutes of sliding things together, I have a jet sitting on its gear! ENATA Aerospace does the composite work on Ultimate Jets kits. The company also does UAV work to MILSPEC standards. This is evident in the Demon. When I slid the wings on the carbon spars, they were DEAD ON! I’ve never had a model as accurate as this. The wing/fuse joint is perfect! No filler, no Bondo. It is molded to perfection. The whole airframe is extremely light and rigid due to extensive use of carbon fiber.

Tailwinds,

John
https://cimg6.ibsrv.net/gimg/www.rcu...57dfc29ed.jpeg
The definitive Demon intakes!
https://cimg7.ibsrv.net/gimg/www.rcu...fd45c36cf.jpeg
Check out the surface derail
https://cimg0.ibsrv.net/gimg/www.rcu...cdc25f5b7.jpeg
62” wingspan with a 32” root cord.
https://cimg5.ibsrv.net/gimg/www.rcu...cc3c3e477.jpeg
3D printed landing gear detail.
https://cimg2.ibsrv.net/gimg/www.rcu...9e38a60a1.jpeg
Huge leading edge devices!.
https://cimg9.ibsrv.net/gimg/www.rcu...845735983.jpeg

That looks so realistic. In the end it will be hard to tell it from a full sized one in photos.

Nice jet! It looks fantastic. Love the panel work. I wonder what it weighs.

The #1 ship weighs 32.5 lbs ready to fly. Just perfect for a 140

Tailwinds,

John

Very nice!

Here is our production record ( in grs ):

Fuselage nose carbon 455
Fuselage middle carbon 750
Fuselage rear kevlar long tail 494
Front kevlar air ducts 380
Bypass carbon and cone 300
U beaver tail layup 100
Right wing 1075
Left wing 1079
Center engine hatch 60
Stabilizer left 129
Stabilizer right 125
Fin 160
Rudder 52
Canopy frame 110
Clear canopy 50
Bearing blocks fitted 63
Rear tailpipe mockup 30
Cockpit tub 100
Speed brake plates and piano 160
Carbon wing tubes 500

Total 6172 grs for the airframe.

Landing gear struts and wheels 995
Retracts, electric 350
Xicoy LG 15 controller 150
Cockpit 3D printed 300
Gear door liners 180
Pushrods, steel rod ends and horns 200
Loom 1100
Thrust tube 300
Kevlar tank 4 l, 390
Separate air trap 95

Total 3770 grs for the accessories.

John
Outstanding ! Like to get some shots airborne .
Semper Fi

Love the fact that they are doing airplanes that you never see modeled. The Demon is a cool jet, looking forward to following the build.

UJ, I’m planning on painting it in VF-31 colors after the shake down flights.

Tailwinds,

John
https://cimg0.ibsrv.net/gimg/www.rcu...f1f5de597.jpeg

It will be great to see something very different. Best of luck on the shake down flights.

Thank you Bob