Simple 2D airplane code for Unity Engine

Airplane.cs

//************** REAL GAMES STUDIO ***************
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using UnityEngine;

public class Airplane : MonoBehaviour
{
    Rigidbody2D rb;

    public float speed = 3.0f;
    public float rotationSpeed = 3.0f;
    
    // YOU make point and move it in front of object
    public Transform point;

    void Start()
    {
        // YOU add Rigidbody2D to the object and gravity scale make on zero
        rb = GetComponent<Rigidbody2D>();
    }

    void FixedUpdate()
    {
        float xAxis = Input.GetAxis("Horizontal");

        Vector3 pos = point.position;

        // Move to point 
        transform.position = Vector3.Lerp(transform.position, pos, speed * Time.deltaTime);

        // Rotate with object
        rb.MoveRotation(rb.rotation + (-xAxis * rotationSpeed) * Time.fixedDeltaTime);  
    }   
}