I bet Vance can tell us what the racing industry does for just the things which I have mentioned.
I suspect Bill mentioned me because of my experience running a streamlined motorcycle at Bonneville so I will share what little I know and then try to relate that to flying gyroplanes.
My fuel tank was aluminum without a bladder securely mounted.
Technical inspection would check for things that were likely to pierce the fuel tank in an accident.
All my fuel lines had fire sleeves.
I wore a five layer fire suit with a Nomex balaclava under my helmet and Nomex socks and fire resistant boots. I had fire resistant gloves.
My helmet had a Nomex liner instead of the more common nylon and had a different air inlet.
I had a switch that would disconnect the battery at its ground.
There was information written outside about how to get me out.
A fire wall with effective seals was required.
I had too separate five pound Halon fire bottles. They could be manually fired or had valves that would go off at a specific temperature. They had nozzles in the driver’s compartment and in the engine bay. Breathing Halon is not good for you and it would not work well in most gyroplanes because it needs to be contained to be effective.
Most of these measures would not help much with gyroplanes.
I had a full body, a roll age a six point harness with arm restraints.
When I had my more dramatic accident (out of four) they had to cut me out of it.
A five layer fires suit made me look like the Michelin and was not comfortable in the high temperatures at Bonneville.
When I fly I wear a single layer Nomex flight suit with cotton undergarments and wool socks. Nomex is not fire proof, only fire resistant.
Nylon will burn and melt to your skin.
I feel having a master switch with a relay to the battery has value.
I have found this allows the larger wires to be well away from the fuel tank.
I feel fire sleeves on the fuel lines have value.
I feel a firewall has value.
Part of my gyroplane emergency procedures preflight briefing includes rapid egress in case of fire.
I prefer metal fuel tanks.
On preflight inspection of enclosed gyroplanes I have found several with the vent incorrectly done creating a potential fire hazard.