CFernandez

Looking at the Grove site it looks like the gear is going to weigh more than the glass gear. The geometry looks a different also. The aluminum gear would come straight out of the gear well, with the axles approx. 9 inches behind the plans position. Interesting thought.

The thought behind the check valve is the valve is in the cabin where it wouldn't be affected by external foreign matter like ice. Two vent lines will ice up as good as one. Should the main vent tube be clogged the check valve will open and allow the tanks to vent properly. If the vent line is clear the check valve will remain closed. That's what I'm thinking to do... That and 1/2" fuel and 3/8" vent lines.

I'm planning for left, right, and a 3-4 gallon sump tank under the main spar; behind the rear seat back. I've eliminated the switch valve and associated tubing.The only "switch" will be between the sump tank and fuel pump, ON or OFF . The system has vent lines from each tank, left, right and sump, joining together high on the firewall. From there a single line continues to the highest possible point on the firewall before coming back down. The system will also have a check valve with a "P" trap loop in it as a second vent in the cabin should the primary vent line become plugged from ice or other material. This is an idea from my friend Andy, he's building a Velocity. FWIW...

That's hard to answer. What do you want it to do? Its like thinking about building and flying an airplane. Picking a particular design for a particular mission is where one should start. There are enough EFI out there with varying capabilities that you can do anything from just engine monitoring to fully coupled approaches. Most EFI will have primary flight instruments to start, from there the sky is not the limit.

The GRT Sport (internal AHRS) can take up to a 15 degree panel tilt. The Horizon has external AHRS(s) and can take a 35 degree panel tilt. The important part of the installation is that the AHRS and magnetometer are installed in parallel planes, no pun intented. (I work for GRT if you wondered.)

Joe, The Cozy looks like it might be a Classic. It looks similar to Mark Scaglia's Classic on Marc's cozybuilders.org site. The canopy on the SX300 looks like it may give you the look/room you're looking for. http://www.sx300group.org/

Hi Drew, My $.02 After the fact... Using plastic wrap on flat surfaces is tricky with little benefit. The only time I use plastic wrap is on small compound curves when the glass and peel ply won't stay still on their own. Then you still have to be careful to get all the air out and not stretch the plastic wrap. On large flat the plastic wrap will stretch and pull and make bubbles, its not worth it.Your biggest benefit is using peel ply and rolling the air out of it. PS Jon, how's your project coming?

Take a napkin...

A friend of mine is selling his BM EFIS One -Gen 2. It is very complete with lots of extras thrown in. http://cgi.ebay.com/ebaymotors/Blue-Mountain-Avionics-EFIS-One-Gen-2-complete-system_W0QQcmdZViewItemQQcategoryZ26436QQihZ002QQitemZ120139422752QQrdZ1QQsspagenameZWDVW or search Ebay item no. 120139422752

I'm checking...

Thanks, I only scratched the surface on the manual. I'm planning to be at Sun-n-Fun next month and Airventure in July. Please do stop by. That would be fine, happy to help.

Rick, If you need any help with the GRT setup let me know. The install is looking good. Carlos

My day job is sales and support for an avionics company, we build EFIS for experimental aircraft.

Good job, Jon! Looking good.

Do you have any pictures of your FHC installation? I'm going to use trunk lid hinges out of a Pontiac. They are just over 12" which should fit inbetween F28 and IP. I think... I will probably need additional or stronger pistons if the plans canopy is kept and one piece. We'll see.