Classic.lua

local RunService = game:GetService("RunService")
local rs = require(script.Parent["RocketSysIII"].MainModule)


local stage1 = {
    name = "stage1";
    model = workspace.RocketStages.Stage1;
    specificImpulseASL =282;
    specificImpulseVac =311;
    wetMass = 410365.5;
    dryMass = 93490.5;  
    burnRate = 1956;
	dragCoefficient = Vector3.new(1 ,0.8, 1)
}
local stage2 = {
    name = "stage2";
    model = workspace.RocketStages.Stage2;
    specificImpulseASL = 348;
    specificImpulseVac = 348;
    wetMass = 137263.5;
    dryMass = 31638.5;
    burnRate = 266.1;
    dragCoefficient = Vector3.new(1, 0.8, 1)
}
local fairing = {
    name = "fairing";
    model = workspace.RocketStages.Fairing;
    specificImpulseASL = 0;
    specificImpulseVac = 0;
    wetMass = 1900;
    dryMass = 1900;
    burnRate = 0;
    dragCoefficient = Vector3.new(1, 0.25, 1)
}

local rocket, rocket2
RunService.Heartbeat:Connect(function()
	if rocket then
		rocket:update()
	end
	if rocket2 then
		rocket2:update()
	end
end)

wait(2)
rocket = rs.Rocket.new(stage1, stage2, fairing)
rocket.stages.stage1:setThrottle(1)
rocket:setOrientationGoal(Vector3.new(80, 0, 0), 200)
wait(100)
rocket.stages.stage1:setThrottle(0)
wait(1)
rocket.stages.stage1:separate()
rocket.stages.stage2:setThrottle(1)