You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
SkyView control of Stec A/p
- Thread starter dbyrnes
- Start date
- Joined
- Mar 23, 2005
- Messages
- 13,226
I'm sorry, but I'm not familiar enough with the Stec AP's to know. What kind of data does the Stec need? We can't provide analog data like your DG does today, but we might be able to give it ARINC or serial data if it takes that.
Thanks. Stec has an ARINC>analog converter for GPS steering and this accepts analog for heading steering from the DG/HSI (46mVDC per degree). It would be a pity to clutter a beutiful panel with an old DG just to get heading steerint or to abandon what has been a reliable (and now very expensive) A/P. Do you have any suggestion for a "fix"??
I also have the STEC GPSS converter box in my Glasair. The previous post may not have stated what it does exactly correctly.
The GPSS converter box takes ARINC format steering signals from the GPS, in my case a Garmin 430W, and turns it into an error signal that looks just like the signal that the STEC A/P gets from the heading bug of the vacuum powered DG. I.e., the GPSS box intercepts the signal from the heading bug on the DG and when the box is set to Heading mode it just passes the signal through to the STEC A/P and when the box is set to GPSS mode, it sends the signal from the GPS that is modified to lock like a heading bug signal to the A/P. The autopilot, when flying a GPSS course, thinks it is in heading mode and the pilot is twisting the heading bug around to the proper headings.
So, the STEC A/P is always flying an analog left/right error signal.
The GPSS converter box takes ARINC format steering signals from the GPS, in my case a Garmin 430W, and turns it into an error signal that looks just like the signal that the STEC A/P gets from the heading bug of the vacuum powered DG. I.e., the GPSS box intercepts the signal from the heading bug on the DG and when the box is set to Heading mode it just passes the signal through to the STEC A/P and when the box is set to GPSS mode, it sends the signal from the GPS that is modified to lock like a heading bug signal to the A/P. The autopilot, when flying a GPSS course, thinks it is in heading mode and the pilot is twisting the heading bug around to the proper headings.
So, the STEC A/P is always flying an analog left/right error signal.
Thanks Harvey. There are probably many potential SkyView customers who already have perfectly satisfactory Stec A/Ps. We probably now need Dynon support re
1. Will SkyView take in ARINC data from our external GPS?
2. Will it pass on that data with an appropriate label to the ST901 Roll Converter (ie ARINC> Analog converter)?
3. Will it also transmit HSI heading bug information in ARINC format?
4. Will there be a mechanism (switch) to change the ARINC output to the ST Converter between GPS and HSI Heading???? ie only one wire to the converter with the usual DG input to the converter being left open.
Hope this will solve all our problems.
1. Will SkyView take in ARINC data from our external GPS?
2. Will it pass on that data with an appropriate label to the ST901 Roll Converter (ie ARINC> Analog converter)?
3. Will it also transmit HSI heading bug information in ARINC format?
4. Will there be a mechanism (switch) to change the ARINC output to the ST Converter between GPS and HSI Heading???? ie only one wire to the converter with the usual DG input to the converter being left open.
Hope this will solve all our problems.