Spacewalker - Laser Cut Kit from RCB; Build and Review

Started by sanjayrai55, August 31, 2016, 08:50:04 PM

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sanjayrai55

I recently acquired a Spacewalker kit from RCB. Sujju-bhai has asked me to review it also, which of course I am happy to do

The Specs:

Span    1230mm (48.5")
Length  1140 mm
Stated Flying Weight
EP - 900 - 1000 g (I think it will pan out at about 1200)
GP - 1200 -1300 g
Power
EP: 2216-1400 ( a 2836)  I disagree  ;D
GP - 25 -32 (Overkill! 20 is fine)
Prop: 10*6 or 11*4  (Wow! @ 1400 KV that's a lot of prop)
Servo: 17 g X 4 (I will go with 2 X 17 g MG for Elevator and rudder, 2 X 9 g MG for Ailerons)
Battery: 3S 2200-2600

The packing is simple, and effective



One main packet of laser cut parts
One secondary packet, with Nitro conversion laser cut parts
One FRP (Fiber Glass Reinforced Plastic) Cowling (NOT cheap thin Plastic)
One bag of Hardware (comprehensive, including full Landing Gear)
One Instruction Manual (no plans; not needed normally on Laser Cut kits)




sanjayrai55

The kit quality is uniformly good. Excellent design wrt to optimization of the laser's utility, thus creating structures which are strong and light - these would be very difficult and painstaking toachieve by conventional means

The balsa is thoughtfully selected to suit the purpose - over 4 different grades used appropriate to the function. The Lite Ply is also of good quality. The laser cutting does very occasionally not go through the thickness of the sheet, but since one has to cut the tabs anyway, it's not an issue.

The part numbering is quite comprehensive, but I would advise some caution: in some cases the number is placed on a scrap piece. Better transfer by hand here  ;)


sanjayrai55

Fuse front (I strongly recommend a trial fit before gluing)



There is the odd part wrongly numbered. Again, very few such, and easy enough to select the correct one by comparing with the pictures in the manual






sanjayrai55

I didn't quite like the 'look' of the motor mount (my suspicious nature >:D) so reinforced it with some scrap ply






sanjayrai55







The cockpit is made removable so as to easily access the LiPo compartment

Fuse aft started


sanjayrai55


sanjayrai55

After completing the fuse sheeting, I sheeted the cockpit. It's done with 2 mm Balsa. I dampened the balsa first with water spray, was quite easy thereafter



Completed fuse


Cycloned

Nice review. Off topic, but where did you get that stackable cabinet drawer in the first pic?

sanjayrai55

I have 4 cabinets. 2 from Mustafa Supermarket, Singapore; 2 from some guy in East of Kailash, Delhi

Arvindkharebpl


sanjayrai55

Tail feathers



Needed a particular piece; could not find. Then found 2, one ply and one balsa, which when joined were just right  ;)







sanjayrai55


K K Iyer

@sanjayrai55,
You haven't even completed it yet, and all i can think of is:
"Sirji, mere pass purana OS20 hai, aisa ek mere liye bhi bana do na..."

There is a thread on RCGroups "RC modelling has officially died"

I want to put a link there to this thread titled "Coroplast specialist builds balsa kit"
If you permit me...

Regards

sanjayrai55

Iyer sir - you can build this with one eye covered with a pirate patch and a hand tied behind your back  ;)

Go ahead and post! But folks there will wonder which Corro specialist  :D :D

prabal276


gaurang.1972


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