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V.P. Mike Teders gave a very interesting presentation
at our March, 12th 2008 meeting about his research
into LSA electrical systems.
See his results below.

Component Steady Load in Amps Fuse / CB size in Amps Wire Size USWG Ohms / foot Approx. Distance in Feet Voltage Drop
Rotax 912S Alternator, (Max  18A) Recommend> 14.00 DPDT Guarded 12, 16 Fusible Lk 0.00216 4 0.12
Rotax 912S Dual Ducati Ignition (Self Powered) 0.00 2 SPST Guarded 2x.20 shielded na 4  
Battery Contactor 1.00 200 4 0.00025 4 0.20
Dynon 180 Display System
(19W wo 2nd 100 .9A, Backup Battery .6A)
1.41 3 SPST Green Lighted Essential Bus 18, w 22  Fusible Link.  Dynon "Keep Alive" fm hot side of sw. 0.00629 4 0.04
AvMap EXP-IV or Garmin 496 GPS 0.74 2
Garmin DL40 or DL30 Radio (28W RX, 35W TX) 2.07 5
Garmin GTX 327 Transponder (GTX320=.95a) 1.63 3
Monroy ADT-300 Collision Avoidance & Volt Monitor 0.18 2
Warning Lights, Sensors, Aux Audio Isolation Amp. 0.50
Red LED Map Light (Built-in Switch) 0.20 2
Kuntzleman DDM-SLC 10 Joule Strobe Supply @ 2A, Dual Thor @ 3A,
Dual Whelen or Aeroflash or
Single Skybright or GS (Explosion Proof?) @ 4A
3.00 7.5 Power 18 twisted, Strobes 18 shielded 0.00629 20 0.38
LED Nav and Position Lights 1.10 3 18 0.00629 20 0.14
HID Xenon Plasma Landing Light (High Start Current) 2.59 30 SPST Amber 18 0.00629 8 0.13
TruTrak "Pictoral Pilot" Single Axis Autopilot,
Navaid Wing Leveler Autopilot (.1 quiessent, 3.6 max)
1.00 3 18 0.00629 8 0.05
Aux. Power Outlet (avg) 0.50 2 18 0.00629 2 0.01
Electric Flaps (will delete if feasible) 1.00 3 DTSP Mom. 18 0.00629 8 0.05
   
Total Load 16.92  
Net SS wo Landing Lt, TX^, Aux, Flaps, Autopilot 11.11  
Reserve Steady State Capacity for Battery Charge 2.89          

 

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