---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Thu 08/05/04: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:44 AM - Re: EFIS: Dynon vs Grand Rapids () 2. 06:05 AM - Re: EFIS: Dynon vs Grand Rapids (N414C) 3. 08:58 AM - Re: EFIS: Dynon vs Grand Rapids (Walter Tondu) ________________________________ Message 1 _____________________________________ Time: 05:44:29 AM PST US From: Subject: Re: RV8-List: EFIS: Dynon vs Grand Rapids --> RV8-List message posted by: Hello Don, I am not anywhere near flying yet,but I thought I would add my two cents... Check out the Blue Mountain EFIS light I was planning on the Dynon but after looking at all of the units I am sold on the blue mountain product. The price diffrence for the BM EFIS light is only a couple hundred more and you get a built in GPS, as well as in my opnion a much higher quality unit. The Dynon is nice but really does not compare to the BM EFIS. Just my opnion... Good Luck Kirk RV-8 wings > > From: N8RV@gte.net > Date: 2004/08/04 Wed PM 05:52:12 EDT > To: "RV-8 List (Matronics)" , > "RV-8 List (Yahoo)" > Subject: RV8-List: EFIS: Dynon vs Grand Rapids > > --> RV8-List message posted by: N8RV@gte.net > > Curious to hear opinions comparing the Dynon EFIS and the Grand Rapids > Technologies EFIS. Has anyone done a side-by-side comparison with our > particular planes in mind? Each seems like a nice unit. > > With any luck, I'll be making a decision in the next few months and > would like to hear some opinions from those of you who have a knack with > such gizmos. > > Thanks. > > -- Don > N8RV > > > > > > > ________________________________ Message 2 _____________________________________ Time: 06:05:04 AM PST US From: N414C Subject: Re: RV8-List: EFIS: Dynon vs Grand Rapids --> RV8-List message posted by: N414C No experience with Dynon or Grand Rapids. I do have about 50hrs on a Blue Mountian EFIS one and an EFIS Lite as backup. They function well, are intuitive and make flying the plane a breeze. It is easy to change parameters or make adjustments as well as upload changes. The autopilot is a little too aggressive for my taste but works well otherwise. The gyros do well in aertobatics. It was easy to adapt to after flying steam guages for 30 years. Really have had no service issues with it yet so cannot talk to company service but I really like the unit. Have not even seen a Dynon or GR so cannot give a comparison. Milt ----- Original Message ----- From: groves@epix.net To: rv8-list@matronics.com Sent: Thursday, August 05, 2004 7:43 AM Subject: Re: RV8-List: EFIS: Dynon vs Grand Rapids --> RV8-List message posted by: Hello Don, I am not anywhere near flying yet,but I thought I would add my two cents... Check out the Blue Mountain EFIS light I was planning on the Dynon but after looking at all of the units I am sold on the blue mountain product. The price diffrence for the BM EFIS light is only a couple hundred more and you get a built in GPS, as well as in my opnion a much higher quality unit. The Dynon is nice but really does not compare to the BM EFIS. Just my opnion... Good Luck Kirk RV-8 wings > > From: N8RV@gte.net > Date: 2004/08/04 Wed PM 05:52:12 EDT > To: "RV-8 List (Matronics)" , > "RV-8 List (Yahoo)" > Subject: RV8-List: EFIS: Dynon vs Grand Rapids > > --> RV8-List message posted by: N8RV@gte.net > > Curious to hear opinions comparing the Dynon EFIS and the Grand Rapids > Technologies EFIS. Has anyone done a side-by-side comparison with our > particular planes in mind? Each seems like a nice unit. > > With any luck, I'll be making a decision in the next few months and > would like to hear some opinions from those of you who have a knack with > such gizmos. > > Thanks. > > -- Don > N8RV > > > > > > > ________________________________ Message 3 _____________________________________ Time: 08:58:50 AM PST US From: Walter Tondu Subject: Re: RV8-List: EFIS: Dynon vs Grand Rapids --> RV8-List message posted by: Walter Tondu On 08/04 8:51, David Schaefer wrote: > --> RV8-List message posted by: "David Schaefer" > > I have three of the Grand Rapids units and evaluated the Dynon. I chose > Grand Rapids for the flexibility and future enhancements as well as the size > of the box. Can't think of better folks to work with. > > Regards, > David > RV6-A Finishing I also have three of the GRT units in place with the EIS. In my humble opinion, only the Chelton system is better, at twice the price. GRT, interfaces to arguably the best AP (Trutrak) out there for the money. They didn't try to design their own AP. They also interface to the most widely used GPS/NAV/COM on the market (Garmin GNS-430). They are still working on several interfaces, namely the ARINC 429, but that will be out "when it's ready", not shoved into the market space before it's tested thoroughly (hopefully within the next month). So if you are going to spend a whole crapload of money, you go with the Chelton, If you want to spend half the money, you go with the GRT. I'm not sure the rest of the players really do have as tightly integrated a system as GRT when you combine EFIS display (size, sunlight readability, refresh speed), Engine Monitoring (graphical EIS 4000), AP integration, GPS integration, NAV integration, Redundancy (multiple AHRS, magnetometers, displays) and overall simple design. Also, the GRT units are light as a feather! As well as the AHRS and magnetometer. Just look at the size of that Blue Mountain box. Of course, I've only said all of this to justify to myself how much money I've spent. Your mileage will vary. I'm not trying to start a "this is better than that war", I have builders' disease. -- Walter Tondu http://www.rv7-a.com