solar airplane

Started by Aneesh.P, March 31, 2016, 12:28:04 PM

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sooraj.palakkad

RC Hobbyist and an Aerial Cinematographer..

Aneesh.P

#26
point load (just want to see  :))

Aneesh.P

uniform load 3.3kg

Aneesh.P

#28
added spars between foils to add stiffness and glued 1mm balsa sheets to make them uniform

this weighs 370 gms only-i didnt expect that ;D ;)

Aneesh.P

@sooraj.palakkad
I have downloaded that video in jan 
that video series gave me confidence and boost :thumbsup:

Aneesh.P

@Tanmay.mathur
its basic stuff nothing high-tech but proper planning
so far i hve used
3 3mm sheets
1 5mm
2 6mm
6 1mm
cf rods are expensive though around 2k+
50x50cm ply

regards,
aneesh

Aneesh.P

im thinking about fuselage
need to design
since im using a multirotor motor theres no space to attach spinner thats spoiling the shape of fuse
any ideas?

Tanmay.mathur

Diy foam spinner .
I make my own spinner by using my bldc as a lathe. Though not reliable so make  10 pcs and they cost ... Nothing.
Regards,
Tanmay mathur

Aneesh.P

Excellent idea will give it a try :thumbsup:

Thanks

Tanmay.mathur

Regards,
Tanmay mathur

Aneesh.P

Will this work?

Aneesh.P

any idea in making of wingtips(easy kind)?

K K Iyer

#37
@aneesh.p
Hoerner if you are so inclined.
But initially, you can forget about spinner, wingtips etc, and other such cosmetics like paint scheme, wheels, LED lights etc, till test flights of airframe under lipo power, and then under solar power.
Whether you have a steerable nosewheel, or tailwheel or no undercarriage is irrelevant to the project, no?

Aneesh.P

 K K Iyer Sir
Since this is costing me 30k around i will not fly the plane with solar cells connected. Basically i will fly with lipo to see how it performs and will note the throttle req for level flight and battery level after 10-30 min flight . After attaching the solar cells will leave this plane on ground with the same throttle level from 9am-3pm and will check the battey level-this will show that plane can fly wilth solar cells alone or can extend flight time when gliding
projects aim is to extend flight time, so in any case my projects done.
But i have been plannig to make one from my second year so trying hard to make this fly with solar power alone-self satisfaction :)

meanwhile i made my fuselage today

rastsaurabh

Have a look at this link some very good details are talked about using Solar cells for a plane.




regds
Saurabh

Aneesh.P

@rastsaurabh
Thanks for the links, i started my design after going through them. those were very good starting points ;)

Aneesh.P

finally the structures completed
weighs 530grms ;D ;D

ashoktmt


Carl


Aneesh.P

hello every one,
Got busy with clg reviews
mean while finished most of the plane
So far AUW with solar cells came up to 1650 grms(est)
structure weight is 650grms
Gona maiden this saturday

manojswizera

Best of luck,
Looking forward, for successful flight
Russ-40 Trainer, Mr.moss, Pushler, Skysurfer, Mugi , F-22, Red swan, Xtra-300, redfury, flying mantaray.

Aneesh.P

How much trust is required for leveled flight?
Will T/W ratio of 0.3 work?

AnjanBabu

T/W ratio of 0.3 could work if you could generate enough initial velocity. Typically aircrafts with such low T/W do ground take-off. Hand Chuck is quite skeptical.

The best T/W I've personally achieved is a payload plane with an under-cambered aerofoil setup with a 1.4kg thrust electeonics and capable of lifting in excess of 1.5kg. But since it was a hand Chuck, payload had to be limited to 1.3kg
Mechatronics engineer . Hopeless realist

anjanbabu.wordpress.com

Aneesh.P

Sad news :my clg management didnt allow me to fly the plane seeing its size   >:(
But because i prepared everything perfectly, i dont want to return back thinking how it would have flown or whether the cg and stability is good
So made a glide test
Will try to get permissions nxt time


Aneesh.P

#49
Glide test video ;D