Whisky compass near SV Classic D1000?

[Rhino]

I understand they can be popular for training.

 

[SV_Classic]

As stated above, HITS = highway in the sky. It projects a series of boxes on your screen to fly thru as a method of course guidance. Mostly regarded as toy or crutch by highly experienced or professional aviators. I suspect it is included as a selling point to sway the, ummm, 'less experienced' as kewl.

Highway In The Sky. Little rectangles showing the way.

I've seen that on MS Flight Simulator, never in a Boeing cockpit and didn't know Dynon could generate it. I suppose it could be used for instrument training but probably not a good sign if someone needs that to maintain SA.

 

[swatson999]

didn't know Dynon could generate it.

Highway In The Sky (HITS) on Synthetic Vision
In software version 15.0 or later, when a Flight Plan is engaged, either with, or without Autopilot, Highway In The Sky (HITS) indicators (rectangles) can optionally be displayed in Synthetic Vision of the PFD. HITS is most useful for “hand steering” a Flight Plan when Autopilot is not installed or not engaged.

HITS will show the (VFR-oriented) Vertical Guidance that SkyView generates. All other altitude guidance is at the altitude bug, even when an external flight plan is being shown. HITS is intended to be used for enroute flight and during SkyView-generated Vertical Guidance.
Display of HITS can be toggled on and off: PFD > MODE > HITS. Repeated presses of the HITS button toggles display of HITS on and off. Note that SYNVIS must be enabled, and an altitude bug set, to display HITS

Figure 49 – SkyView Classic Highway In The Sky (HITS) Presentation

Section 4 PFD Operation

 

[airguy]

Heading vs. track isn't really relevant for aerobatic practice flights but I get your point. Thanks for the reply

I'm not an aerobatic performer - but I would think heading would be a crucial piece for proper performance of certain maneuvers - like maintaining alignment parallel to (and outside of) the crowdline, executing a roll or series of rolls without changing heading etc.

 

[BalsaBat]

An alternative perspective: If installed as you propose, consider it as a backup instrument only. If your screen dies in flight, there wouldn't be any field to affect it if you pulled the breaker for the now useless screen. Placard the compass correction card as being applicable only with screen off. Would be interesting to perform two compass swings; one with screen powered and one with screen's breaker pulled to see just how much the compass is affected.

Well, this is probably a pointless addition, but ... I was considering adding a wet compass for awhile -- despite dual ADAHRS -- just for redundancy in case of something like a common mode or data bus failure. Also, to just avoid the errant FSDO or CFII guy arguments. But to the original question, Airpath compass says magnetic fields that affect readings more than 30 degrees are problematic. Anyhow, I didn't install the panel compass, but I did run a nice uncompensated boy scout compass around the Dynon HDX and GTN650 panels. Neither affected the readings much at all in very close proximity, in fact less than my panel screws and switches (especially when powered). So I think mounting a whiskey compass is doable relative to the deviations from Dynon HDX panels, depending on what else is in the vicinity. Just probably not worth the trouble, as others have said.