RC India

RC Models => Electric Planes => Topic started by: rahulroy31 on June 29, 2024, 06:28:26 PM



Title: Full Composite flying wing - Son of Loki
Post by: rahulroy31 on June 29, 2024, 06:28:26 PM
This is bigger than my previous similar model .. and named Son of Loki (the previous one was called Loki and offspring are always better  :) )


It is hotwired EPS foam vacuum bagged with fiberglass, CF .. has a 16mm UD CF tape laid on top and bottom surface acting as a built-up spar.
Airfoil :- TL16 110% thickness.

The wing and vertical tails are full composite construction (fiberglass , Carbonfiber and vacuum bagged)

Initial CG (@7% SM) is at 20cm from LE apex

Special features
1. 3x1mm CF strip slotted and epoxied into the LE...  prevent dinks
2. The bottom hinged elevons also have a top mylar gap seal ...  reduce drag
3. The servos, servo horn and push rods are embedded and completely enclosed within the wing. The  push rods run through tunnels with the wing, and come out just near the TE ..... reduce drag.
4. The vertical fins are 2mm balsa , carbon fiber, fiber glass composite . They are strong/rigid, light, and thin...... less drag and weight.
6. 3D printed nose which supports the battery and also protects the nose during landing..

Electronics
1. Changed to 2836 NTM 1800Kv motor  after first flight
2. 40a esc.
3. 7x4 prop
4. 2 x 9gm servos
5. 3S 2200mah bty
Specifications of some of the above parts (motor, esc) are based on what I have .. i.e reused

Very satisfied with the plane.. she flies wonderfully

Happy flying
Rahul


Title: Re: Full Composite flying wing - Son of Loki
Post by: unidrakeshrc on June 30, 2024, 07:06:00 PM
You have been a Master in Building such Planes.

And I know it may have flown well!

RD


Title: Re: Full Composite flying wing - Son of Loki
Post by: manu on July 01, 2024, 11:32:31 PM
Hi Sir, did you use a CNC hotwire cutter for the swept back tapered wing half ?


Title: Re: Full Composite flying wing - Son of Loki
Post by: rahulroy31 on July 02, 2024, 05:42:45 PM
It is hot wire cut using a slightly modified manual hot wire cutter ... not a CNC hot wire cutter


Title: Re: Full Composite flying wing - Son of Loki
Post by: manojswizera on July 03, 2024, 09:38:21 AM
Would love to see it flying.


Title: Re: Full Composite flying wing - Son of Loki
Post by: rahulroy31 on August 12, 2024, 06:10:00 PM
Here is a link to a flight video of what I currently have... will get a better video
https://www.youtube.com/watch?v=-UhpAkvsNk8