Aircraft Glide Slope and Acceleration Help

Unity Engine
1

Hi Unity Community ,
I’m currently developing a small game , in which you can fly an Aircraft.
To create a realistic flight.model I tried using rigidbody , but it didn’t work out as I planned.
Without the rigidbody I can’t simulate a glide slope and acceleration to a maxSpeed properly , so I came here to ask for help.
Down below is the code I’m using currently.
I really appreciate all help I can get.

using UnityEngine;
using System.Collections;

public class RealisticPlane : MonoBehaviour {
    public float maxSpeed = 10;
    public float maxLift = 5;
    // Use this for initialization
    void Start ()
    {
  
    }
  
    // Update is called once per frame
    void Update ()
    {
        transform.Rotate ( Input.GetAxis ("Vertical") , Input.GetAxis("RollAxis") , -Input.GetAxis ("Horizontal"));
        if (Input.GetKey (KeyCode.W))
        {
            transform.Translate(Vector3.forward * Time.deltaTime * maxSpeed);
        }

        float heightPosition = Terrain.activeTerrain.SampleHeight (transform.position);
        if (heightPosition > transform.position.y)
        {
            transform.position = new Vector3 (transform.position.x,
                                              heightPosition,
                                              transform.position.z);
        }
    }
}
2

I thought you went to Answers?

3

I did .
But i did not know where to post my question , so I posted here and there.