HKS 700E Electrical Question

[Rmmm]

I am considering buying an LSA aircraft powered by the HKS 700E engine.   Need to know if the electrical output of this engine is sufficient for powering the Skyview 7" system with these modules....ADAHRS/EMS/Xpndr/Com/GPS.

Following is what I could find that describes the HKS 700E electrical system.

Thanks
RMM

HKS 700E 60hp Engine==

Ignition System Dual CDI (Capacitive Discharge Ignition)
Generator Output AC-12Volts 210Watts
Regulator/Rectifier Three Phase Regulator
Starter Electric Only

• The electric probe .......This does draw from the available electrical power. If running strobes, nav lights, transponder, com radio, etc. it may not be possible to maintain a positive charge rate. (17.5 amps at 12V)

What are the DC toggle switches for?
• The HKS uses a DC CDI. It must have 12 V positive supplied for starting. Once running, the integral alternator will power the ignition if battery fails. Regardless, the ignition switching circuit must be closed for operation and open for shut down. .......With the reg rec and ignition lead wired to the IGN terminal, 12V+ is supplied for ignition via the battery when the key is turned to on or start position and via the integral alternator regardless of key position.

 

[mmarien]

For comparison, my Skyview draws 3.1A in flight. I have ADAHRS/EMS/GPS. My GTX327 xponder draws 0.7A and my iCOM A210 radio draws 0.4 when not transmitting. If you use LEDs for lights they hardly draw anything. The LED strobes draw 5A once in a while to recharge. It's not a continuous draw. See second picture.

The big draws are my battery (~5A), my electric fuel pump for my electronic fuel injection (~5A) and the AP servos (3.4A). Without the pump and servos and lights on my electrical draw is 13.5A continous.

 

[Rmmm]

Thanks Murray..

Here is what GreenSkyAdventures - A dealer for the HKS has to say in their FAQ...As carb heat is usually not necessary for extended periods, am I overstating the concern??

I definitely want external lighting, and possibly also landing lights so I can practice night operations.

How effective is the Carb Heat Probe?  Is it used similar to a Carb Heat on a conventional airplane?

    The electric probe warms the carburetor body. It is generally used as a preventative. Unlike Carb Heat systems of conventional aircraft it is commonly left on continuously when operating in climate conditions where carb ice is possible. This does draw from the available electrical power. If running strobes, nav lights, transponder, com radio, etc. it may not be possible to maintain a positive charge rate. (17.5 amps at 12V) Because of the short intake track of the HKS, carb ice has not been as common as with a Continental, for instance. Remember, the cylinder head, to which the intake tube is bolted is running about 300 degrees F. Header wrap is sometimes used to insulate the intake runners effectively warming the carburetors. Alternate solution to deal with potential carb ice would be to pick up hot exhaust air and duct it to the carburetor Body. Conventional ducting through the intake is not a preferred method to deal with carb ice on the HKS