Greetings everyone. Recently I built a scaled-down version of the FT spitfire, with a 22 inches wingspan and a length of around 17 inches.it is roughly equal in size to the mighty minis, though being heavier. I could not find any foamboard in my area so I decided to build the plane from cardboard ( the kind used in shoeboxes ). Although cardboard is inferior to foam board as a building material because of its weight, I tried as best as I could to keep the weight down and ended up with a final ( without battery ) weight of around 210 grams ( 7.4 ounces ). Besides being built out of cardboard and being smaller, it is a fairly good replica of the FT spitfire- with tip undercamber and a dihedral of around 15 degrees. The specs. of my build and the parts I used are as follows ;
Specs:
Wingspan: 22 inches,
Wing Root Chord: 5.5 inches,
Dihedral: 15 degrees,
Wing thickness: 3/8 of an inch
Wing Area: 95 sq inches
Fuselage Length: 17 inches,
Weight without battery: 210 g / 7.4 ounces
All-up Flying Weight: 250 g / 9 ounces
Wing Loading: 13.6 oz./ sq. ft.
Parts:
Motor: Emax Gt2203 1560 kv,
Prop: 7X4 Standard electric propeller,
ESC: 12 Amp rated,
Battery: 800 mAh 2S LiPo,
Servoes: (4) 5 gram servoes.
I have some experience with flying RC planes before, but this is my first scratch build, so I don't exactly know what to expect. The motors in the power packs A and F ( which are geared towards planes of a similar size ) are very similar to this Emax motor, but they both have a higher kv ( 2300 ) and run a smaller prop ( 6X4 ); What effects will these differences make? Another question to all of you experienced flyers is that; will it fly, and how will it handle in the air ( i.e. will it be docile, or fast and difficult to control, will it have enough thrust etc ). Any help at all regarding these issues will be greatly appreciated.
Specs:
Wingspan: 22 inches,
Wing Root Chord: 5.5 inches,
Dihedral: 15 degrees,
Wing thickness: 3/8 of an inch
Wing Area: 95 sq inches
Fuselage Length: 17 inches,
Weight without battery: 210 g / 7.4 ounces
All-up Flying Weight: 250 g / 9 ounces
Wing Loading: 13.6 oz./ sq. ft.
Parts:
Motor: Emax Gt2203 1560 kv,
Prop: 7X4 Standard electric propeller,
ESC: 12 Amp rated,
Battery: 800 mAh 2S LiPo,
Servoes: (4) 5 gram servoes.
I have some experience with flying RC planes before, but this is my first scratch build, so I don't exactly know what to expect. The motors in the power packs A and F ( which are geared towards planes of a similar size ) are very similar to this Emax motor, but they both have a higher kv ( 2300 ) and run a smaller prop ( 6X4 ); What effects will these differences make? Another question to all of you experienced flyers is that; will it fly, and how will it handle in the air ( i.e. will it be docile, or fast and difficult to control, will it have enough thrust etc ). Any help at all regarding these issues will be greatly appreciated.