Ramjet house

Say we have a nuclear missile flying around Venus atmosphere every six hours, on a mission for a couple months. Quarters are (near-certainly) too cramped for us primates and all our primate needs but hey, we got robots. What can its robots do up there?

One important option, for the ramjet at, oh, 75 km altitude, is to drag OTHER ramjets (even scramjets) up to sufficient velocity. Such of the former would fly until approaching lower-altitude and slower craft, and drop a tether-and-hook to catch them. (Depending on the rubberiness of the tether, that seems a significant boost in g-force. Not to mention that the lower vessel is looking up at an atomic reaction. I'd hope said lower vessel is not carrying anything fragile, like monkeys.) Here's Alberta Oil Peon:

Have your ramjet slow to about its slowest speed, and match altitude with the daughter craft. Have the daughter craft do a brief intense fuel burn to match speed with the ramjet, and latch on. Then ramjet cranks up wide open to haul daughter craft to upper limits of atmosphere.

Many such lower vessels are spacebound. Once at Mach 3 and 75 km they switch to their own battery-powered single-use ramjet boosters. When those boosters have done what they do they fall back to Venus, to recharge by solar, and the Venerean flotilla can catch up to them later. The battery-operated boosters meanwhile have set their passengers for such gravity, air-pressure, and velocity as trims delta-V toward low orbital 6370 m/s or elliptic 9455 m/s. For that, 1000-1800 ms^-1 is better than 100. Might not need a rocket at all.

For lower altitudes, ramjet longterm craft might be surveying the surface. Maybe there's a rescue-mission in the offing. Maybe someone dropped a satellite or a balloon or an aircraft with some valuable material. Maybe they're looking for ores.

UPDATE 2/24/21: Now I think on't, classic Pluto was always a S.L.A.M.: a low-altitude solution, that might not get over the clouds here. Molten-core Pluto should supply the heat to run it higher... and faster.