I threw mine away and built a couple custom storage areas.
1) Built a map tray from scrap. I made it to hold a sectional that is sort of folded into a square, along the normal sectional fold lines.
The tabs allow it to mount to the aft edge of the instrument panel without any fasteners. The aft edge (the left side in the picture) simply gets tied to whatever is convenient under the panel. I used some waxed cord to tie it to the radio tray.
A folded map just sits there, conveniently placed where you can see it, but it's not on your lap or on the floor flopping around. The map doesn't interfere with the stick travel, and it generally doesn't get blown around by the air vents on either side of the panel.
When you want the map out of sight, just push it on into the tray.
Updates to the original design:
I temporarily removed my map tray because there were a couple of minor problems with the map tray: 1) the tray did not have a top, which occasionally allowed a map to snag the bottom of the radios above it 2) the Rocket accelerates so fast on takeoff that the maps would fall out into my lap. No kidding.
I added a top. No problems there.
To cure the problems with the maps falling out during acceleration, I could have simply added throttle more slowly... BWA HA HA HA HA HA HA..... I make myself laugh out loud sometimes. Since slower acceleration is NOT an option, I added the two spring steel straps you see inside the tray. Only one end is fixed. The other end is free to compress as you add stacks of maps. Works very well. BTW, the spring steel straps are simply made from strapping left over from one of my Van's crates.
As you can see in the picture, the map slides under the strap and the strap gives enough friction to keep it in place.
I also added tinnerman nuts, etc. so that I can install or remove the tray easily.
2) I added a glove box in front of the RV-4 battery location. Works great.
I don't have any details as it was a LOONG time ago. Here's a suggestion or two.... build a box, put a lid on it, make it fit in front of the battery. Easy.
2A) Some Rocket builders put a storage locker in the bays on either side of the control stick, under your thighs. Tom Martin was the first one to do that that I'm aware of. They work also, but are a bit less accessible in a 24" wide RV-4.
F1 Rocket and F4 Raider components
RV and Rocket Accessories, Tailwheels, Tools, & More
F4 Raider - under construction
F1-H Rocket "Crazy Horse" - sold
RV-4 "Chief Pontiac" - sold in 1994, purchased in 2018