At the times of handheld GPS I see the Directional Gyro as the least desirable instrument in a VFR Coupe.
Every handheld GPS has a compass mode that in essence is a directional Gyro display, but a way better one than any mechanical instrument. Instead of showing your heading, it displays the true course your aircraft is doing. To stay on course with a mechanical DG, you need to calculate the wind factor onto your course. And that factor is an unknown at altitude. Also the instrument deviates over a short amount of time and one has to recheck with a compass every so minutes. In the contrary, the GPS course indicator is showing your precise course, no need to compare with the compass, no deviation calculation. Just precise measurements. Wayy better than the old DG. I would spend my money on a good handheld GPS rather than on a DG. Hartmut To: [email protected] From: [email protected] Date: Fri, 22 May 2009 09:19:44 -0700 Subject: [ercoupe-tech] DG Does anyone have a DG for our ercoupes in good condition that you would consider selling? IF so, email me at [email protected], or call 715-309-2205. I am looking for one reasonably priced. Thanks for reading this note. Gary _________________________________________________________________ Hotmail® has a new way to see what's up with your friends. http://windowslive.com/Tutorial/Hotmail/WhatsNew?ocid=TXT_TAGLM_WL_HM_Tutorial_WhatsNew1_052009
