i have started building body for my First plane ..... Blu Baby 33"
i have chosen some electric gear and want seniors to correct me .... If it's wrong choice !!
Motor : (image below)
Li-po : 1800mAh 20c 11.1 v
ESC : 30 A- 3v (BEC) mystery ESC
Transmitter : (image below)
charger : TURNIGY ACCUCEL-6 50W 6A BALANCER/CHARGER
servo's : 9g/1.6 kg Micro servo.
.
All seniors need your help .....
which glue can i use ?? in the form it's said fevibond and araldite can be used ..........
but foam is melting a bit for fevi-bond !!! what to use now ??
Fevi-bond should not be used on foam, it will simply eat through it... use fevicol or araldite 5 min epoxy...always check on a scrap piece of foam first.
ajith..
would like to say that the motor you are using is an overkill for that plane, dnt need somuch power for a sober flying plane like the BB. cycle spokes deform/bend every time you land, so if possible, use 'spirng steel' wire instead. Its quite durable, 3mm should be good enough. Also as mentioned here, use araldite KLEAR or Bondtite as epoxy glue for foamies.
do post your progress..
The build pics have been taken from the original RCG thread. I think he means to say that this (the attached picture) is what his plane looks like.. :)
naughty boy..
Ajith you can use hot glue. It adds weight but will not be very significant if you learn hot to use it properly. Fevicol works well too but takes time to set.
i think 2822 motor is good enough for this model, u dont need so much thrust!!!! as Amar said it will overkill!!!!!!
all the best!!!
Foam Safe CA would be the best choice of glue for fast building. If you don't mind waiting for the glue to cure you may also use Fevicol wood glue.
CA would work well, but I normally use a thin layer of 5-min Epoxy(araldite). Using too much of epoxy would make your plane heavy.
About the motor,
I have used hextronik 24gm 1300kv motor, works well for 33 blubaby.
About the adhesives,
I have used,
Araldite Klear, Bondtite and Decoration glue. All good for foams.
About Monobloc,
Make sure you make groves for motor wire and wires that run from ESC to the battery.
About wing,
Make sure your wing is 4-40 Undercambered. 4% camber at 40% on the wing. Use a little heat while bending depron otherwise it will crack. Make a nice dihedral and dont forget to re-inforce the wings.
Hope this helps! :thumbsup:
Ajith you should seriously start building now, its been a while. And whats the point in posting someone else's five years old build pics :-\
http://www.rcgroups.com/forums/showpost.php?p=7407267&postcount=24
Thank you
Buzz-rc ; Vector ; Ashjr7202 ; samanth ; Bokialap ; Roa and Sunlikestar.
i am using Araldite glue....
i was building my plane at my friends house ..... (as it's near to my college..) so couldn't post Original Pic { since posted similar pic}
What do you Mean By " THE MOTOR YOU ARE USING IS AN OVER KILL FOR THAT PLANE "
I thought of using this motor for other Heavy Planes ... i am planning to build a MIG 21 (large one)
so.. what actually will be the problem for this one ??
I am thinking of flying on a low Throttle = Enough power for this plane !!
will i have any serious (Un-solvable) problem in flying with this motor and plane PAIR ??
what i made looks like this ..
Quote from: ajith on May 02, 2011, 11:14:15 PM
What do you Mean By " THE MOTOR YOU ARE USING IS AN OVER KILL FOR THAT PLANE "
He wants to say that motor will provide much more power than required.
Quote
I thought of using this motor for a other Heavy Plane ... so.. what actually will be the problem for this one ??
How much heavy plane do you want to build?
so will i have any Un-solvable problem ?? :banghead:
I am thinking of flying at a low throttle enabling lesser power out put .... For this plane ...... :-\
can i do that ...... ??
Another Problem :: :o
i am trying to build a cambered wing SHOWN BELOW. (:|~ the wing design with the plan IS DIFFERENT
If i follow the one not from the plan then how shall i fix it ?? Fuselage has a curve-slot for the wing :headscratch:
What shall i do ?? shall i Cut the fuselage accordingly to fit the new designed wing to fit properly and give a good smooth aerodynamic shape ??
shall i make the wing as in 1st image above
or
simply follow the plan??
What shall i Do ??
How to join rudder to the plane ??
If this is your first plane then stick to the plan.
+1
Quote from: ajith on May 02, 2011, 11:14:15 PM
will i have any serious (Un-solvable) problem in flying with this motor and plane PAIR ??
so what actually will be the problem ?? waiting for answers To continue building my plane ...
Fixed to Follow The plan ...... Seniors advice Thank You Sunlikestar and augustinev sir.
Well, if you go by common sense / thumb rules, too big a power plant will increase the AUW of the plane. It is not only the weight of the motor, it could also be the added weight of a bigger battery that you may need.
The second aspect is changes in CG, which can be fatal to the plane if you are not careful about this.
Not sure which of these will affect your particular situation (if at all!), but that is the general thought process on putting oversized power systems on planes.
anwar sir,
motor weight : 55 gm ; 204 W ; 18A ; 1270 Kv .
Li-po weight : 153 gm ; 1800mAh ; 20c .
ESC : 25 gm ; 30A .
will balancing the plane properly Solve most of my problems ??
most of the motors come in a 35-55 gm range .... so is this acceptable ??
now what to change ?? What will happen if i have Excess of thrust ??
Quote from: ajith on May 06, 2011, 05:26:19 PM
now what to change ?? What will happen if i have Excess of thrust ??
You will have a feeling of
"EUPHORIA........."
;D :giggle: i am really missing a LOL smiley right now :giggle:
Take it easy folks... he is a concerned beginner :)
To answer your question Ajith, just be mindful about balancing the CG properly, and test it out. Remember to keep the weight of the plane low when you build it.
Ajith, motor mount is another issue, over powered motor can really tear up the mount, believe me i have done this mistake and i am telling you, it is always better to but some underpowered setup initially take her up fly around for some flights and take it from there, in fact running up full throttle on ground etc is a big no no. i hope you are getting what i mean, take baby steps with motor and power system as well as throws
@Ajith: your setup looks fine. for a beginner over thrust may result in plane getting in a loop and inverted. If some flier is around, you can take his help when you maiden it.
@guys: he is doing his plane with his pocket money. lets help him
And the most important tip... most people get dejected when their plane crashes in the first few seconds of their first ever flight. To avoid that, please do :
1. Train yourself on a sim if possible, and.or let the maiden be done by someone else who is an experienced pilot to test and trim the plane.
2. Check if the plane has bad tendencies by doing glide tests into tall grass.
@folks: will it be good idea for ajith to do a elevator uptrim when he maidens his plane or keep the trims leveled out before flight.
we dont know how the plane will behave, so keeping the trims neutral is a good idea before maiden.