SureFly packs a lot of tech into a housing no bigger than a traditional magneto including:
Fixed vs. Variable Timing
All SureFly SIMs can be configured to operate in either fixed or variable timing. Variable timing controls spark advance up to 38º before TDC as determined by manifold pressure and RPM (engine power setting). Each engine's base timing advance is read off the data plate and set into the SureFly Ignition Module or, "SIM" at installation. The timing advance schedule is hard set at the factory, when the SIM is manufactured, to provide the highest possible combustion efficiency.
To operate the SIM in variable timing mode, the engine onto which the SIM is installed must comply with the following requirements:
1. Normally aspirated,
2. Have Cylinder Head Temperature (CHT) monitoring capability,
3. Use minimum of 100-octane low lead aviation fuel.
No Mechanical Points
Not only are points and condensers a point of failure in magneto ignitions, so are rotors and caps as they carbon track and provide alternate paths to ground as resistance builds in the system. That's why SureFly utilizes none of these antiquated technologies. SureFly components are all solid state and industrial-grade electronics.
The result is zero maintenance, zero overhauls, no rebuilds, and no maintenance costs whatsoever! Nothing to wear. Nothing to maintain. Run it to 2,400 hours of SIM operation.
SPECS & DATA
Solid State Electronics
Minimal moving parts – input shaft, two sealed bearing, and oil seal
Wasted Spark system
Aviation spark plugs – gapped .022 to .035
Slick style harness – Shielded aviation harness
Input voltage 8.5-30.0 VDC*
Avg. Current @2700 600mA (4 Cyl.), 1.1A ( 6 cyl.)
Up to 38 degrees Ignition advance – RPM & MP based
Hall Effect sensors provide velocity and position input
Manifold pressure sensor range – 5-45 inHg
Operational temp range -35 to 250 F
No interval inspections
RPM range 0-3500
45mJ spark energy
Starting: Retards spark to TDC w/full spark energy
RTCA DO-160 Testing
Section
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Item
Temperature and Altitude
Temperature Variation
Humidity
Operational Shocks and Crash Safety
Vibration
Explosive Atmosphere
Waterproofness
Fluids Susceptibility
Sand and Dust
Fungus Resistance
Salt Fog
Power Input
Voltage Spike
Audio Frequency Conducted Susceptibility
Induced Signal Susceptibility
Radio Frequency Susceptibility
· Conducted Susceptibility
· Radiated CW & SW Susceptibility
· Radiated Pulse Modulation Susceptibility
Emission of Radio Frequency Energy
Lightning Induced Transient Susceptibility
Electrostatic Discharge (ESD)
Category/Test Level
B3
A
C External Humidity Environment
B
R with Vibration curve I
E
R
F
S
F (analysis)
T
B
A
B
ZC
W
Y
F
B
A3H3L3
A
SureFly Ignition Modules ("SIMs")
Complete, Self Contained Magneto Replacements
*SIMs require a Slick style ignition harness. If you are replacing a Bendex style magneto, you will need to source a slick style ignition harness. If your aircraft has pressurized magnetos, is turbocharged, or you routinely operate at altitudes above 10,000', call SureFly for suggestions regarding ignition harness selection.
SIM4N
4-Cylinder Non-Impulse Mag Replacement
Replaces 4-cylinder non-impulse coupled magnetos on Lycoming & Continental engines. 4.0 lbs.
SIM4P
4-Cylinder Impulse Coupled Mag Replacement
The vast majority of 4-Cylinder applications will replace the impulse coupled magneto. 4.4 lbs.
SIM6L
6-Cylinder Lycoming Magneto Replacement
Replaces 6-cylinder magnetos on Lycoming engines. 5.2 lbs.
SIM6C
6-Cylinder Continental Magneto Replacement
Replaces 6-cylinder magnetos on Continental engines. 5.0 lbs.
Installation Aids
Optional Components
Do you have a mechanical or digital tachometer? Please read the following document to determine whether or not you need a Tach2. If you require one, they are also in our online store.
TACH2
Tachometer Signal Converter
The Tach Signal Converter (Tach2) converts SIM P-Lead signals to negative –going signals compatible with the Horizon P-1000 digital tachometer input and to a positive-going 0-5V square wave signal compatible with electronic tachometers that rely on a signal from a magnetic pickup inserted into a magneto.
Tach 2 can accept one or two SIM P-Leads as input, converts and conditions the signals and outputs them to corresponding output terminals. The Tach2 must be installed in the aircraft cabin and secured to the airframe with screws and nuts. The Tach2 power input from the aircraft bus may range from 8.5VDC to + 30VDC without damage. The Tach2 consumes less than 0.25A of power. 0.2 lbs.