I saw in Flyrotax that a number of engines show an external generator. Is one needed on the 914?
I saw in Flyrotax that a number of engines show an external generator. Is one needed on the 914?
Also consider whether you're building an IFR or VFR airplane and how much flying you intend to do at night, both of which will drive your level of tolerance for a loss of alternator.
If the following are true...
1. your battery is of sufficiently large capacity and is tested to ensure it can cope with alternator-out electrical demands for long enough to get you safely on the ground, and
2. you have a plan for reducing electrical load to maximize battery-only endurance, and
3. you have a system to immediately notify you of low bus voltage (EFIS alarm, panel light, etc.) so you'll know right away if the engine's internal alternator dies
...then you may not need a backup charging source.
Eric Page
Building: Kitfox 5 Safari | Rotax 912iS | Dynon HDX
Member: EAA Lifetime, AOPA, ALPA
ATP: AMEL | Comm: ASEL, Glider | ATCS: CTO
Map of Landings
With my Nav lights, strobe lights, fuel pump, G3X, landing lights, heater, headseats, ipad, cell phone charging, the stock rotax does not have enough amps. Edge performance makes a 35 amp alternator. Its works awesome. I am running the edge 35 amp alternator as primary. It has its own Voltage regulator. If that dies I switch to the stock rotax alternator and stock rotax voltage regulator to get me home.
Dustin Dickerson
Building 7ss STI x 2
Oratex
29" shock monster
EP912STI 155hp
Garmin
N33TF......FLYING!
N53TF......FLYING!