Gdetrailer wrote:
In the OPs case..
2 RVs with 50A shore power = 24Kw
1 RV with 30A shore power 3.6Kw
Fair chance that the folks with 50A shore power will easily end up tripping the gen. Their rigs have a 50A breaker so they can draw 50A (6,000W) on each leg which means the generator breaker now becomes the limiting factor.
You are confusing the theoretical peak load with the realistic peak load. Most 50amp rigs never hit anywhere close to their theoretical peak.
30amp it happens but even there it's for a second or two then drops back to something closer to 10-15amps. As long as everyone's air/con compressor doesn't kick over at the exact same time, you can have a generator quite a bit lower.