Lear-Jet 23 a twin 50mm EDF-TEST FILES-

https://youtu.be/Epqn_GDczPE

Once I saw a Lear-Jet 23 approaching for landing at Brussels Airport and I thought "that looks good in flight" and almost immediately it was on my bucket list. As is often the case, a few years but then it finally happened.
My Lear-Jet would be one to enjoy, I didn't have high demands on scale details, as long as the proportions were right, and it was unmistakably a Lear-Jet it was OK for me.
The size? Somewhere between 1000mm and 1200mm, power setup 50mm EDF on 3s to 4s. Landing gear and flaps are not in the specifications.
The scale was set at 1/10 which comes to a wingspan of about 1100mm. Given that the Lear-Jet has quite short wings, the fuselage has become quite voluminous and there is plenty of space inside.
When I started the design, I had two XFLY 40mm EDFs lying around, I bought these after I was surprised by the power delivered by those little fans when I saw an XFLY Eagle-Twin flying. So, I would try these in the Lear-Jet.
Soon the first Lear-Jet was printed and ready for the maiden, I usually do the first take-off with a bungee and there is nothing exciting to tell about this maiden flight besides the fact that the Lear-Jet looks so cool in flight .
The Lear-Jet flew as expected, the little 40mm fans do their job on 4s quite well, although you have to build up some speed for a loop, there is no lack of power. I even did a few belly-sliding starts with the 40mm EDF, for this I needed wet grass so that sliding would be easier.
After a few afternoons flying with the Lear-Jet the desire for more power came. New nacelles were quickly designed to fit a 50mm XFLY.
Although the 40mm's were sufficient to fly, the 50mm EDF's are pure fun. I mounted the 4s version and with this the Lear-Jet has a little more than 1/1 thrust/weight ratio. With this, starting from the belly is no problem, because there is some rudder mixed on the EDF's you can even taxi on the belly without any problems. With the available power you can fly endless looping's, and rolling is no problem. With some feeling you can even fly nice stall turns thanks to the rudder mixing on the motors.

The contsruction
The fuselage of the Lear-Jet has a wall thickness of a few mm, it is printed with 1 perimeter and has a 6% Gyroid infill. The fuselage segments are quite large but this technic gives you light yet strong parts. The front three parts are glued as well as the rear three parts. The front and rear are then screwed together using tabs. This allows the fuselage to be dismantled again and if necessary, only the damaged part can be replaced.
The wing and stab, these are also printed with 6% Gyroid infill but are solid. A wing spar is printed along so that the wing is strong enough without additional carbon wing spar or whatever.
The same goes for engine nacelles and the tip tanks with the difference that the tip tanks are only printed with 3% infill since they have no structural function.
The wing er is also printed, so no carbon or other reinforcement is needed for the entire Lear-Jet.
Wing, stab and tip tanks are held in place by magnets, this reduces the chance of damage if something goes wrong, something that happens to everyone sooner or later.

What do you need:

1x 3D-printer,print volume 220x220x250 or larger.

+/- 700 gr LW-PLA or LW-PLA-HT
+/- 60 gr PLA+ or Though PLA
16x round magnets 8x3mm.
8x round magnets 10x3mm.
100cm 0,8 steel wire for the hinge rods
About 20 2x10mm Parker screws
Medium and Thin CA-glue
3x 3,7gr servo‘s
2x 50mm EDF for 3 or 4s
2x ESC 40A
1x battery 3 or 4s 3000mAh to 4000mAh