What abilities might each member of a 4-person planetary recon craft have?

Question

Scenario:

A generation ship travels to a star system that has at least one planet that's believed to be potentially habitable and, therefore, a possible location for a colony. After sending some probes that return encouraging data, a manned spacecraft is launched from the generation ship to do a short (2-3 day) recon survey of the planet to scout for potential colonization locations. The recon craft has a crew of four.

Question:

What roles and technical/scientific abilities would you want the crew members to have?

The assumption here is that each crew member would have more than one area of expertise. For example, the pilot might also be a mechanical engineer, while another might be an exobiologist and some other kind of scientist. I'd assume that one would be a medical officer in addition to one or more other roles. Would one have computer/IT abilities as one of their roles? Would there be a second member who also could serve as pilot in case of something happening to the main pilot? Would one have hydrology as one of their specializations? How many types of engineers would the crew need to encompass? Would one of them (all of them?) need to be armed and combat trained?

So please state what you think would be the most useful and likely division of labor between the crew members.

Answer 1

I simply wouldn't think about the problem the way you're thinking about it.

First off, I'm going to hand wave away the "short" part of the trip. If your generation ship is close enough to a star (in both position and velocity) to send a recon ship a mere three days ahead, the generation ship is most likely committed to that planet. Maybe if they sent the recon team 3 years in advance, and had superluminal drives, then it might be effective.

Second, I would base my 4 person crew almost entirely on the data that came back from the probe. If the fate of my entire generation ship, or even the fate of my species, rests on 4 individuals telling me if a planet is hospitable, I'm not going to rely on a canned team structure. If the geology is interesting, I'll send a geologist. If the biology is interesting, I'll send a biologist. If the water table is interesting, I'll send a hydrologist. If the natives look restless, I'll send combat trained individuals. If the planet has an unusual rotation rate (i.e. not 24 hours), I'll probably send the night crew in because they're used to unusual hours. I'll let the probe tell me what I need to do next, rather than blindly trusting that I know best without data. Likewise, the number of engineers or pilots in the crew will be based on the technology I have. If I'm near the end of my road, and all of my recon craft are in poor repair, I'm going to make sure someone on board can repair it. If I think there's a good chance there's going to be injuries, and my craft don't pilot themselves, I may bring two with piloting skills.

I likely would want to send one individual who has some leadership capabilities. Generally speaking that's an important attribute. However, I'll let the probe aid my decisions. If I can't find the right set of individuals for the task and have one of them have leadership, I'll find a way to send the right set without leadership. Or maybe I'll send two leaders carefully pitted against each other, because that's what the situation called for.

Answer 2

Keeping the Team Alive

• As you mentioned, a pilot who can take manual controls.
• Some limited ability to repair the shuttle. If anything major breaks, just four people with supplies for a few days will be dead ...
• A skill set somewhat like a combat engineer. Somebody who can dig a rover out of a hole, rig a rope bridge, dynamite a boulder.
• Medical skills to handle injury or illness to the team.
• I guess everybody will have to be trained in decontamination procedures, but there might be one who knows more.

Bringing the Data Back

• If the world has life, you need biologists, physicians, etc. to judge if it is healthy for humans. You need somebody who can make the decision to open the helmet and take a deep breath. (Perhaps after a trial run with rabbits?)
• You will need skilled fieldwork and lab assistants. Are you going to cross-train scientists and pilots to do that, or should there be specialists?

Given your timeframe, it might be that there are only lab assistants on the first lander. They bring samples back to the mothership.

• If the world is dead, dump the biologists and take geologists.

Answer 3

As I understand, we have a 4 person team to visit a planet for the first time. I would pick my team as such:

Member 1

Title: primary pilot

Skills

• mechanical engineer

Duties

• safely transport the team to and from the planet
• make precise measurements of the planet's primary features such as gravity, atmospheric pressure, magnetic field and humidity

Member 2

Title: medic

Skills

• physician and surgeon
• biochemical engineer

Duties

• assure prime health of all team members
• perform chemical tests of the soil, atmosphere and water for composition
• perform initial tests for signals of life (in case no visible macro-organism is seen on the planet)

Member 3

Title: Team Leader

Skills

• combat expert
• electronics expert

Duties

• assure safety of all team members in case the planet is inhabited by alien beings
• assure a constant 2-way communication with the base
• decide when the objectives are achieved and in case of emergency, decide course of future actions

Member 4

Title: Geologist

Skills

• expert in geology and geography
• meteorologist

Duties

• study the planet's long term climactic patterns from rocks, water samples and terrain
• build a digital map of the planet as seen from space (at close range)
• study signs of volcanic activity
• study the water cycle on the planet and determine the size and type of water bodies present

Answer 4

It depends a bit on what you are trying to achieve and what sort of technology you are using. For example if you have sensing equipment capable of collecting, logging and transmitting data you don't necessarily need the specialists who will interpret the data to be there in person.

With this in mind you can ask yourself what yobs would need to be done on the ground to maintain the mission which can't easily be automated. It could very well be that the most important job is for technicians who know how to set up and maintain the surveying equipment.

Also what are the physical constraints of the equipment ? For example do you need to land at a known safe landing site and then travel some distance to set up equipment and take samples at an area of interest ? Equally how difficult is it to fly the lander, you you need a specialist pilot or is it more like driving a van ?

Once on the ground what is the terrain like...do you need someone with expertise in traveling and surviving in a particular environment ?

It really comes down to what technical and practical expertise you need to operate the scientific and technical equipment you need to gather the data you need. For an initial reconnaissance sending even the most expert geologist or biologist to 'have a look' isn't really going to tell you much.

One reasonably credible breakdown would be :

• Pilot : responsible for getting on and off the planet
• Mission leader : responsible for administration, safety and overall decision making
• senior technician : responsible for operating the science equipment
• assistant technician : perhaps also with medical or other specialist training as required

If you are expecting to encounter intelligent life (aliens) then you open up the possibility of a role in attempting to communicate and interact with whoever you find. For obvious reasons what skills this might require are speculative but expertise in general science, art, linguistics and culture are possibilities or you might have a specific package of training for this eventuality.

With a team this small on a 2-3 day mission having a specialist medic seems a bit and if its then who gets injured (a 1 in 4 chance) they are entirely redundant. It would make more sense for all team members to have basic medical training.

Similarly having one 'combat expert' in a 4 man team seems a bit pointless. either send a dedicated military unit or just run away if there is trouble.

Answer 5

I like Sepratrixes answer as it interprets the old style question framework by OP.

As a start the first thing would have been to research what the Mars colonist teams have planned and then make allowance for the fact that that is a long term exploration. Compare this with the moon landing teams and what they got up to. Piloting and sample collection.

There is no real need for military/strong-arm personnel unless they are expecting "stobor" or Klingons and then it is better to move to next planet.

The first explorers are expendable, there will be more sent if these fail. Their value is in exploration and they need to be good at this, basically sample taking and piloting of the scout ship are what they have to be good at. The next batch may have a little more specialisation but strength and skill at deploying and operating sampling and short and long term monitoring equipment are all that is needed.

So piloting, first aid and field sample collecting from all 4. Hopefully one manages to pilot the samples back to the mother ship.

EDIT:
I see the answer by o.m. is also close to mine and I agree with much of it. Sample collection is the key, not deep analysis or interaction with the environment.

This all presupposes a need for sample collection. The correct answer is to have the samples collected and analysed by advance high acceleration robot probes and a robot supported perimeter already in place if the place can support humans, then send in some interesting crew to explore further afield. Tough guys with fast reflexes and survival training would be the requirement there with lots of drones and robot support exploring day and night.

FURTHER EDIT:
On reflection the forward team does not need to exist. Robot probes have checked if the air is breathable, if so the colonists will land and make the best of it. Generation ships are generally not made to cope with many wishful destinations unless we have FTL probes to make a long string of possible destinations. If there is air then there is some form of photosynthesis and it is somewhere in the Goldilocks band, better than this the colonists cannot hope for.

Answer 6

I'm afraid I must disagree with a fundamental premise of the question. You're asking for a small expeditionary team as part of primary exploration. While this may have been valid for scifi through the 60s-90s, since we started dropping rovers on Mars, it's no longer a valid "future" concept. We're not going to be sending people until all the surveys and decisions that you're thinking of have already been done by probes and the teams reading the data from them.

I'd want probes to have been on the planet for at least a couple of years before the human team show up, at which point I'm sending in a moderate size scout ship with 10-20 people at least, maybe up to 50 if I want to actually get some results, probably with a mission lasting at least (local) full seasonal year. There's no point spotting a perfect landing location and then finding too late that it has a 6 week summer, that you just happened to see, and spends the rest of the year under ice, or that it's on the annual migratory route for a million oversized buffalo.

4 people in a couple of days barely have time to put in a fast orbit and leave again. They're not going to be gathering any meaningful data compared to scattering probes across the surface.

If you genuinely want to send 4 people on an exploratory mission to an inadequately scanned planet then their roles are:

• Tank
• Ranged/melee dps (physical)
• Ranged dps (caster)
• Healer

What we forget, living on our domesticated planet, is quite how dangerous the large mammals and matching predators that we have mostly killed off on Earth can be. We look at our world's large predators in their fenced in zones, and out in places we never go, and think they're awesome, forgetting that they used to be everywhere and we used to be on the menu. A fresh new wild world is going to be dangerous, very dangerous, especially for people who smell of dinner.