April 23, 201313 yr I am always at a loss as to which is the more correct procedure: Start engine(s), boot up avionics as necessary (regardless of airplane) and write flight plan to the GPS (or GNS) unit, proceed with necessary clearances etcOR: Turn on battery, boot up avionics as necessary, write flight plan to GPS (GNS) unit, start and proceed?? I have things configured as necessary such that battery drain is not a real concern. Dan George (woodhick)Check out Greenbrier Aero Club, the VA for and about the GA pilot.
April 23, 201313 yr The checklists in most piston singles call for engine start before avionics power. Some of these airplanes may have a switch to power up a single radio from the battery simply for clearance delivery.
April 23, 201313 yr In most smaller planes, you don't want to start your engines with your avionics on. The battery isn't powerful enough to handle both at the same time.
April 23, 201313 yr In the real world sometime pilots just turn on the battery and power up the avionics for a quick call to clearance delivery to get their clearance. Then shut it off, then start up engines and later turn on avionics again. In FS I'm not paying for gas so i just start it up and get the avionics after engines running. | My Liveries | FAA ZMP | PPL ASEL | | Windows 11 | MSI Z690 Tomahawk | 12700K 4.7GHz | MSI RTX 4080 | 64GB 6000 MHz DDR5 | 500GB Samsung 860 Evo SSD | 2x 2TB Samsung 970 Evo M.2 | EVGA 850W Gold | Corsair 5000X | HP G2 (VR) / LG 27" 1440p |
April 24, 201313 yr Author Thanks guys. Clarity and whys & wherefores now in place. Start up, write FP, etc it is. Dan George (woodhick)Check out Greenbrier Aero Club, the VA for and about the GA pilot.
April 24, 201313 yr Commercial Member In FS I'm not paying for gas so i just start it up and get the avionics after engines running. Indeed - last night I sat for an hour with the engines running on the Q400 playing with the FMC... I ended up reloading the fuel from the control panel afterwards :lol: Jim Stewart Milviz Person.
April 25, 201313 yr Author Ouch!! Bet that cost 5 or 10 (virtual) dollars :lol: Dan George (woodhick)Check out Greenbrier Aero Club, the VA for and about the GA pilot.
April 25, 201313 yr I have been to one airport where it was necessary to request a start clearance from the tower. So its on with the battery, on with the radio, get the start clearance, turn radio off, then fire up. John Rig: Gigabyte B550 AORUS Master Motherboard, AMD Ryzen 7 3800XT CPU, 32GB DDR4 Ram, Gigabyte RTX 2070 Super Graphics, Samsung Odyssey wide view display (5120 x 1440 pixels) with VSYNC on.
April 25, 201313 yr That's our procedure too at C172. Turn on battery, avionics, and radio for startup clearance, then turn off radio and avionics for start-up. [color=#a9a9a9][size=1][size=4][img]http://forum.avsim.net/public/style_images/flags/rs.png[/img][/size] Lj. Prodanovic[/size][/color]
April 25, 201313 yr I've read that you don't want your radios and other avionics on line while starting because you can get voltage spikes and other nasty electrical no-nos while cranking your engines. Fried electronics is going to ruin your day. Joe Brown
April 26, 201313 yr Moderator In the real world sometime pilots just turn on the battery and power up the avionics for a quick call to clearance delivery to get their clearance. Then shut it off, then start up engines and later turn on avionics again. That's what I do to save a little time on the ol' hobbs meter. Avsim Board of Directors | Avsim Forums Moderator
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