I'd thought that several notable ships had been refitted to burn petrol, though I can't find the references I'd had in mind. (I'd think that petrol itself woul

I'd thought that several notable ships had been refitted to burn petrol, though I can't find the references I'd had in mind. (I'd think that petrol itself would be a less desirable fuel for some of the same reasons as ammonia: it's heavier-than air, sinks, and burns rapidly or explodes when vapours combine with air.)