|
 |
 |
 |
 |
 |
|
HOW TO CONVERT
MECHANICAL PULL-TYPE STARTERS TO
PUSH-BUTTON
CLICK ON THE PICTURE
TO SEE HOW WE CONVERTED OUR
ERCOUPE 415C-D C85-12 FROM PULL
START TO PUSH BUTTON
USING SKY-TEC'S
STCs
Converting a Pull-Start?
Here are the STC
instructions. And be sure to click on
the Ercoupe picture above for good pictures to
familiarize yourself with the process. Our comprehensive starter
conversion certification page has all the resources you'll need to
prepare submit your 337's for installing the Sky-Tec
C12ST2/S starter (KCST2).
|
| The
Pitch |
Ditch
your pull-cable and lifeless antique starter. If it
has not died already, it's just a matter of time. And
aren't you tired of adjusting that pull cable so that the
starter energizes only at the very end of the pulling
motion? Sky-Tec ST2 starters are proven, durable and
provide much quicker rotation for easier, effortless
starts. ST2 starters feature no-maintenance,
self-resetting kickback protection. |
The
Sky-Tec ST2 starter replaces both the old, antique
heavyweight starter AND the continuous running sprag
clutch assembly on smaller CMI engines. Reduces weight by
6-8 pounds and eliminates the
possibility of the continuously running sprag clutch
components failing in the engine oil bath (that's a bad
day). The ST2 provides faster starts, lighter weight,
reliability & peace of mind. |
The
ST3 is the lightest starter adapter friendly starter
available. Capable of cranking even the largest
Continental engines on 24 volts, the ST3 offers the best
balance of light weight, torque, starter adapter
protection and proven reliability. The ST3 is also
the perfect starting solution for 12 volt aircraft with
smaller bore continental 6-cylinder engines. PMA
certified. Customer proven. |
The
ST4 is the newest member of the Sky-Tec Continental
starter line designed to minimize weight while providing
additional torque for larger bore Continental
engines. The proven centrifugal release clutch from
the ST3 is combined with the higher torque motor of the
ST5 to provide a light weight, high torque, starter
adapter friendly starter perfect for both 12 volt and 24
volt 470-powered aircraft. |
The
ST5 offers Sky-Tec best power and durability of the
Continental starter line. At just 9.4 lbs., the ST5
shaves eight to nine pounds from most large bore
continental engines. The ST5's side-mounted solenoid
can be clocked to clear any nearby-mounted engine
accessories and provides safe, instant release of the
Continental starter adapter wrap spring. |
|
Best for |
The
C12ST2/S is most commonly sold in the KCST2 Conversion Kit to convert
pull-start C85-12 through O-300-C engines to push-button.
The KCST2 Conversion Kit includes the C12ST2/S starter,
push-to-start button, placard, wiring and the STC
instructions for performing the engine & airframe
conversions. |
The
C12ST2 is the ideal replacement starter for factory
key-start O-200 & O-300 engines.
Recommended for Continental factory
key-start engines (commonly O-200-C
through O-300-C) - Installation does not
require removal of factory needle bearing. |
The
ST3 is Continental's factory OE starter on all new 24V
Continental 520 and 550 engines due to its extreme light
weight.
The ST3 is also ideal for all
12V or 24V O-300-D and IO-360
Continental engines. |
The
all new ST4 merges the extremely durability and high
torque motor of the ST5 motor combined with the proven
lightweight clutch of the ST3 making it safe for all
Continental starter adapters.
Recommended for 12V and 24V Continental 470-series
engines.
|
The
ST5 offers extreme duty cycle and very high torque.
Safe for all Continental starter adapters.
Recommended for 12V and 24V Continental 520 & 550
engines. |
|
Certification |
For
pull-start engines, eligibility is by FAA
PMA Supplement 5
for engines modified per
STC
SE10076SC
For
IO-240 factory O-200-C key-start engines, eligibility is
by
FAA
PMA Supplement 5
|
For
O-200 & O-300-C factory key start engines, eligibility
is by FAA
PMA Supplement 5 |
For
O-300-D through TSIO-550 engines, eligibility is by
FAA
PMA Supplement 8
*Yes, while the ST3 is
certified for nearly all 6-cylinder continental
engines, 12 volt ST3s are best suited for 3-series engines
while 24 volt ST3's are used on the full range of
6-cylinder engines. |
For
O-300-D through TSIO-550 engines, eligibility is by
FAA
PMA Supplement 12
*Yes, while the ST4 is
certified for nearly all 6-cylinder continental
engines, it is ideally suited for 6-cylinder engines that
need more cranking power w/minimal weight increase. |
For
O-300-D through TSIO-550 engines, eligibility is by
FAA
PMA Supplement 6
*Yes, while the ST5 is
certified for nearly all 6-cylinder continental
engines, it is ideally suited for 6-cylinder engines that
need more cranking power & longer duty
cycle. |
CRANKING LARGE BORE CONTINENTAL ENGINES
WITHOUT DAMAGING STARTER ADAPTERS
Old style adapters, new style adapters and hangar tales
Ahhh, the amazing Mis-Information Super Highway... Sky-Tec
developed the ST3, ST4, and ST5 starters to satiate customers
who may be concerned their particular TCM starter adapter may
not be completely compatible with the previous generation
permanent magnet starter motors (often stamped,
"Slovenia" or "Iskra." Many of customers
of those starters have experienced repeated starter adapter
failures and are
seeking a more reliable and starter-adapter-friendly
design. Only Sky-Tec provides adapter-safe
engagement and immediate release of the sensitive Continental
starter adapter wrap spring. The ST3, ST4 and ST5 starters
each utilize a powerful permanent
magnet motor, but we also incorporate unique methods of
releasing the engagement ensuring there is minimal drag
on the starter adapter input shaft after power has been
released from the starter. In fact, no other
starter releases the starter adapter wrap spring faster and more
assuredly than Sky-Tec starters. Sky-Tec is confident you will find
the ST3, ST4 and ST5 starters each provide
many years of reliable service for all types of TCM
starter adapters.
|
| Kickback
Protection |
via internal self-resetting
torque clutch |
N/A
(Continental Starter Adapter provides kickback
protection) |
N/A
(Continental Starter Adapter provides kickback
protection) |
N/A
(Continental Starter Adapter provides kickback
protection) |
| Motor |
Wound Field |
Permanent Magnet |
Permanent Magnet |
Permanent
Magnet |
| Release |
Proven,
internal electro-mechanical solenoid engage/disengagement |
Centrifugal
clutch |
Centrifugal
clutch |
Reliable
offset e/m solenoid |
| Mount |
Tough
strontium-fortified 356 T6 Aluminum Alloy -
gravitationally molded |
Tough,
strontium-fortified 356 T6 Aluminum Alloy -
gravitationally molded |
Tough,
strontium-fortified 356 T6 Aluminum Alloy -
gravitationally molded |
356 T6 Aluminum
mounting ring can be clocked in any direction in 60 degree
increments so solenoid clears nearby engine accessories |
| Weight |
8.9
lbs |
6.5
lbs. |
7.6
lbs. |
9.4
lbs. |
| RPM |
~100-140 RPM
@11V
Also see:
Debunking
the "too fast" myth. |
~60-100RPM
@11V
Also see: Debunking
the "too fast" myth. |
~60-100RPM
@22V
Also see: Debunking
the "too fast" myth. |
~60-100RPM
@11V
Also see: Debunking
the "too fast" myth. |
~60-100RPM
@22V
Also see: Debunking
the "too fast" myth. |
~60-100RPM
@11V
Also see: Debunking
the "too fast" myth. |
~60-100RPM
@22V
Also see: Debunking
the "too fast" myth. |
| TBO |
2700
hrs
(recommended, not required) |
2700
hrs
(recommended, not required) |
2700
hrs
(recommended, not required) |
2700
hrs
(recommended, not required) |
| Warranty |
2
Years |
2
Years |
2
Years |
2
Years |
| Models |
C12ST2/S |
KCST2 |
KCST2/SR |
C12ST2 |
C12ST3 |
C24ST3 |
C12ST4 |
C24ST4 |
C12ST5 |
C24ST5 |
| Best
Use |
For
recent factory O200-C or IO-240 engines
or
engines already modified by STC SE10076SC |
Note:
Normal Rotation
Complete STC pull-start conversion kit
for O-series engines incl. starter, switch, wiring,
placard & STCs |
Note:
Reverse Rotation!!!
Complete STC pull-start conversion kit
for GO-300 engines (only)
incl. starter, switch, wiring, placard & STCs |
For
factory key-start O200-C and O-300-A through O-300-C
engines
Simply remove & replace |
Ideal
for 12V aircraft with 3-series Continental Engine |
Suitable
for most 24V aircraft with IO-360 through TSIO-550
Continental Engine |
Ideal
for 12V aircraft with 4-series Continental Engine |
Suitable
for most 24V aircraft with IO-360 through TSIO-550
Continental Engine |
Ideal
for 12V aircraft with 5-series Continental Engine |
Suitable
for most 24V aircraft with IO-360 through TSIO-550
Continental Engine |
| Voltage |
12V |
12V |
24V |
12V |
24V |
12V |
24V |
| Power |
1.0kW |
1.7kW |
3.2kW |
3.6kW |
4.0kW |
3.6kW |
4.0kW |
| Current |
95A
avg
@ 11V / 100 RPM Test |
185-285A
@
11V, 100 RPM Test
|
125-185A
@
22V, 100 RPM Test
|
~185-320A
@
11V, 100 RPM Test
|
~105-185A
@
22V, 100 RPM Test
|
~185-320A
@
11V, 100 RPM Test
|
~105-185A
@
22V, 100 RPM Test
|
| Street
Price |
C12ST2/S
from $564
Click for Prices
|
KCST2
from $586
Click for Prices
|
KCST2/SR
from $686
Click for Prices
|
C12ST2
from $564
Click for Prices
|
C12ST3
from
$498
Click for Prices
|
C24ST3
from
$527
Click for Prices
|
C12ST4
from $505
Click for Prices
|
C24ST4
from
$542
Click for Prices
|
C12ST5
from $512
Click for Prices
|
C24ST5
from
$556
Click for Prices
|
Cost
to
Rebuild |
$346 |
$346 |
$346 |
$346 |
$306 |
$324 |
$310 |
$333 |
$315 |
$342 |
| Buy |
BUY NOW |
BUY NOW |
BUY NOW |
BUY NOW |
BUY NOW |
BUY NOW |
AVAILABLE
SOON |
AVAILABLE
SOON |
BUY NOW |
BUY NOW |
| Product
Resources |
ST2
Series Starter Installation Sheet
Includes
recommended TBO information
Comprehensive
Pull-Start Conversion Certification Page
Incl. all the resources you'll need to
prepare submit your 337's for installing the Sky-Tec
C12ST2/S starter (KCST2). |
ST3
Installation Sheet
Includes
recommended TBO information
|
ST4
Installation Sheet
Includes
recommended TBO information
|
ST5
Installation Sheet
Includes
recommended TBO information
|
Go
to Top |
