Coroplast Ver 4.0 - size 52 - 91 RC Plane

Coroplast ver 4.0 - size 52 - 91

After making 3 previous coroplast plane and learning from some mistakes, finally the ver.4.0 flies. It was not so powerful plane with 43.5dm2 (wing span 150cm) with ASP 52 2T since the wing load is considered more than scale aeroplane. After making the wing load with 51dm2 (wing span 170cm), it flies awesome and can do aerobatics move.

Another thought, i would like to upgrade the engine to 91 2T size. It seems that JBA 91AR is good for the plane. It will add the weight about 300-400 grams but the plane is still considered between aerobatics and scale plane. With this engine, I would expect having awesome speed and crazy maneuverability.

The specification can be seen below:

AUW : 3.6 – 3.8 Kg
Wing Span : a. 1.5 Meter and 43.5 dm2 for ver.1.0; weight approx 1.1kg.
            b. 1.7 Meter and 51.0 dm2 for ver.2.0; weight approx 1.1kg.
Engine : ASP 52 2T, plan to upgrade to JBA 91AR 2T.
Length: 130cm from the spinner to edge of elevator.
Propeller: see the engine specification below what it can accpet. For ASP 52T, my favorite propeller is 12x5
Servos: - 1 * 12g servo for throttle
            - 3 x 30g (2x mini servos for the wing and 1x for the rudder)
            - 1 x 50g (standard servo for elevator)

Engine specification can be seen below:

Type: ASP S52A II - now

Displacement: 8.477cc 
RPM range: 2,000-18,000(r.p.m)
Output: 1.47/17,500(kw/r.p.m) 
Weight: 475g 
Suitable Prop:11*7-12*6

Type: JBA 91AR - future

Displacement: 14.9cc
Bore (mm): 28.12
Stroke (mm): 24
Output (hp/r.p.m): 2.4/17000
Crankshaft: 5/16 x 24
Weight (oz) : 25.96
Recommended prop size: 13 x 8
Practical range: 2500/10500

I have not got a change to video it but soon I will make one...

Please see the picture below from some views :

Soon I will post the details...

Regards,
DS.