Well...Until you figure out what the "Keep Alive" switch is...I'd just leave it on.
The remote ident button's handy, too.
So - when's the obligatory trip to ABQ for beer/green chile?
Look to the left of the HSI... STEC System 30 with Alt Hold
I think Aspen's new stuff is off-the-chart cool.
Add to that the Sandel electronic attitide indicator is north of $20K -- AND IT DOESN'T INCLUDE ADHRS! That's right, it still uses a mechanical gyro. Not included, by the way.The most interesting part: A Sandel EHSI costs $11,000 plus installation, according to the Sandel guy I spoke with at AOPA. The most basic Aspen system with AI+DG is $5995, and the "Pro" version which basically has the Sandel plus electric AI/FD, GPSS, and much more is only $9995.
So, is there any reason why one (me) could not (some day...) get an Aspen Pro, and move the King HSI to secondary- or maybe even engineer-up a basic copilot-side panel?
I was thinking ASI, Altimeter and HSI on the left three holes, and Aspen Pro and MFD in the center/right holes. You'd have to find someplace for that STEC, too... but now you have a fully redundant panel with the steam gauges in a normal scan window, not over on the right side of the panel.
And I'd try hard to find a place for the RMI while I was at it.
So, would one be allowed to remove the vacuum pump too if the Aspen unit is installed?Of course, part of the appeal (to me) of removing the gyros in favor of the Aspen stuff is to remove the maintenance expense associated with overhauling instruments and vacuum pumps...
If you get one unit, you need backup instruments, and keeping the vac AI would probably be smart. If you get two or three, you have redundant ADAHRS and you can lose the "conventional" instruments entirely. The fact that both are electric is countered by battery backup.So, would one be allowed to remove the vacuum pump too if the Aspen unit is installed?
...
Spike, are the backup instruments just the old ones and still vacuum-powered, or are they electric?
Of course, part of the appeal (to me) of removing the gyros in favor of the Aspen stuff is to remove the maintenance expense associated with overhauling instruments and vacuum pumps...
Definitely.
Here is Spike's modified panel with the Aspen Evolution system (quick hack in Fireworks):
Ha. That's great, Troy. Though...it looks as if he's already lost the gyro on the middle Aspen unit. It's a good thing he left all of those backups in place.
That's funny... I didn't consider fixing all of the attitude indicators to show the same thing! Just pulled the screen shots off Aspens' site and tried to skew them to look somewhat correct on his panel. Perspective's a pain!
I've been studying for my instrument written. I guess it's working.
What is the "Keep Alive" switch? What would happen if you set it to "off"?