Hi,
Im wondering if anyone can help me here. Is there such a thing as either:

1) A model jet engine that could lift 100kg vertically off the ground?

2) A model jet engine that could lift 50kg vertically off the ground and a system to link two of these so that they will open/close throttle in perfect harmony?

3) A " " " " " " 35kg vertically " " " and a system to link three of these so that they will open/close throttle in perfect harmony?

Also:

1) Is there a formula relating to jet thrust and force that can be used to calculate the above for specific engines?

2) How much fuel is required for...lets say...a 90min flight using a model jet engine (Approximately will do, I just need to figure out roughly how much space 90min worth of fuel for 1 engine will take up) ?