Specifications
(as tested)
| Wing
Span |
68" |
| Length |
54" |
| Wing
Area |
748
sq.in. |
|
Dry Weight
less flaps & retracts
|
7 1/2
lbs. |
|
Dry weight
w/flaps & retracts)
|
10
lbs. |
| Stab
Area |
152
sq.in. |
| Airfoil |
Fully
symmetrical |
| Scale |
1-1/4"=
1' |
| Engine
Size: |
Two stroke
.25 - .50
|
| #
of Channels |
4-6 |
|
Construction
Information
| Wings |
Foam core with
balsa sheeting |
| Fuselage |
Balsa box inner
frame. With molded wing fairings and ABS molded cowls. |
| Tail
Flat |
1/4" balsa
sheet |
| Flaps |
Full with
details on plans |
| Landing
Gear |
Fixed (retracts
optional) |
| Building
Time |
| Frame
up - 10 Hrs |
| Finish
- 50 Hrs. average |
|
| Building
Experience |
Intermediate |
|
|
Short Kit
Contents
| Arcofoam
wing cores |
| Detailed
clear canopy |
| Clear
rear observation window |
| Molded
high impact cowls & cowl flap sections |
| Plywood
firewalls |
| Molded
top fairing |
| Hinges,
Horns, Engine mounts |
| Two
sets of detailed plans w/step by step instructions |
| Bill
of materials for wood needed to build the complete
airframe |
| Working
with foam guide sheet |
| Retract
guide sheet |
|
Test Pilot's Performance
Report
(As tested with twin 40 engines
and 6 channel. radio)
| Take
off |
Excellent |
| Top
speed (No Retracts) |
70+ MPH |
| Top
speed (W/Retracts & Twin .46 Engines) |
80+
MPH |
| Landing
speed w/Flaps |
20 MPH |
| Straight
out flight stability |
Excellent |
| Roll
rate |
Very
Groovy! |
| Loop
stability |
Excellent |
| Inverted
flight |
Good |
| Control
response |
Good |
| Landing
approach |
Slows down well
with flaps & pulled in w/engine power |
| Flare
out |
Straight &
level approach & touchdown recommended |
| Landing |
Excellent,
with no surprises |
| Flying
experience recommended |
Intermediate |
|
Replacements
& Options
| #SK720-B
Wing core |
#SK720-F
Rear nacelle cowling |
| #SK720-C
Plans |
#SK720-G
Nacelle top faring |
| #SK720-D
Molded canopy |
#SK720-H
Top gunnery window |
| #SK720-E
Front nacelle cowling |
#SK720-J
Clear bombardier nose section |
| #SP143
Insignia Sheet |
#SK720-K
Machine gun turrets |
| #RT105
Retracts |
|
| #SK720-W
Wood Pack (all balsa, plywood, hardwood to construct
model) |
|
