Sig 4*40
|
Wing Area: |
604 sq. in. |
 |
| Wing Loading: |
19.1 |
| Motor: Hacker |
B50 10L Geared 6.7-1 |
| Prop: APC-E |
16x10 |
| Cells: Thunder Power |
6S3P-6000 Prolite |
| Amps: |
50 |
| Ready to Fly Weight: |
80oz |
| Watts Per Pound: |
200 |
This is the Sig 4*40 built with a B50 10L
Hacker Motor geared 6.7-1, Hacker Master 30 cell 48 amp ESC, 16x10 APC-E prop, 4
Hitec HS-85BB servos, Hitec SuperSlim receiver, UBEC, and a 6S3P-6000ma
ThunderPower Lithium Polymer battery. The all up weight can in
at 80oz to give me 200 watts per pound.
|
This is all of the wood that was either replace or
removed from this kit. |
 |
|
This is the replacement wood, a 6.9oz savings. |
 |
| I pushed the elevator and rudder servos back into the tail
to make room for the flight pack. |
 |
|
I am using Hitec HS-85BB micro servos to save weight. |
 |
|
The wing is a quick build with standard construction. |
 |
|
The only thing I changed with the wing is to move the
servos out into the 4th rib bay and open small holes for the wires to go
through. |
 |
|
Before I glue the top turtle deck on I add a light ply
rail. The front of the battery will be secured to this rail with Velcro. |
 |
|
To make the battery hatch I glue the turtle deck from F1
to the firewall and from F2 back. I then make a hatch to fill the
gap. |
 |
|
The fuse is only 8.3oz ready for covering with motor mount and 2
servos installed. |
 |
| Everything ready for covering. |
 |
| Close up shot of the motor. I am pushing my luck by using
the SonicTronic motor mount but it has worked so well for me in the past
an weighs next to nothing. |
 |
| With a 19.1oz wing loading this plane has no bad habits and
slows down nicely on landings. 1000watts is overkill for this plane but
WOW what a rocket. |
 |
| Click on picture to view a 12mb video of the 4*40 in flight. |
 |