My next project is to build Introduction F5J. First a lot of pictures of the wonderful kit. For moment I study this kit.

On short in 7 minute that sumarize 5 month of work for twin gliders and first tests of flight ...

My Introduction F5J story (7 min 8 sec)

My Introduction F5J story: build two gliders in 5 month, from november to march. Configuration of twins: motor XPower F2915/12 F5J XLIGHT, ESC Flycolor 40A, UBEC 6A/5V, battery 1400 mAh, 3S, 40C, 10"X6" carbon.

0 - 3:54 Building ; 3:54 - 5:39 First test of gliding ; 5:39 - 7:07 First test flight with motor for 4 seconds.

A video summary for those who do not have the patience to follow this whole thread: from the beginning, the receipt of the kit and until the first flight. On the first glider I followed the manual as best I could, but on the second I used the experience I gained and combined certain steps. For this reason I preferred to include all the pictures during the construction. The first tests with hand launch followed, and finally a launch using the engine.

About flying my gliders: https://www.rcgroups.com/forums/show...on-F5J-in-2024

Page 1-3 building twin fuselages.

Page 3-6 building first wing.

Page 6-9 building second wing.

Page 9-11 finish the twins - ready for test.

First tests: https://www.rcgroups.com/forums/show...-flying/page11

Page 11-14 flying notes.

Page 14 - First crash ! Suspect non upgrade ACCST software for Frsky receiver, and OpenTx - unwanted servo movements !

Page 15 - Method for fixing segments of the wing in better way

Page 16-21 Building of the third fuselage

Page 20 - Second crash ! Pilot error.

Page 21 - Sink rate 0.3919 m/s !!!

Page 22-28 Begin building fourth fuselage

Page 24-28 A new fuselage with carbon tube

From page 24 of this thread I show how I have build a fuselage with carbon pipe : https://www.rcgroups.com/forums/show...-flying/page24

Or you can see a video about that:

New fuselage for Introduction F5J glider (11 min 42 sec)

Page 27, 29 - About TX setup, Problem solved !

Page 29 - CN F5J Sanpetru

Page 29-31 Building the third wing

Page 32 - Joy of flying Introduction F5J with carbon pipe fuselage ...

It's a great kit and you will enjoy building it as much as flying it.

Originally Posted by Garvey

It's a great kit and you will enjoy building it as much as flying it.

Your sailplane look great ! Thanks.

I want to build 2 Introduction F5J, in same time.

I chose the engines for the two gliders, XPower.

First step ...

I find best tool for cut : a shaving blade ! The best. When you cut the small islands off the board, you can hear a clear sound and feel it in your hand.

I begin to glue with thick CA.

I make some part like H28 and H26, my self, from plywood 4 mm, because if you buy stabilisator like spare part you don't receive pieces from plywood. No problem, but good to know. I continue ...

Building continue ...

... continue ...

I have finished in raw state one rudder and two stabilisators. I have prepared my work space for next two rudder and one stabilizator.

I have storage problems .

I finished a stage. Another stage begins: mounting the fuselages.

... continue ...

... continue ... with the fuselage ...

After a few attempts to make a jig for the two parts of the fuselage, I came to the conclusion that method of overlapping their is the best.

I just finished step 13 from manual.