Need help with 2D Flight Simulator

Hi,

I'm trying to adapt the following 3D Flight sim to 2D: http://forum.unity3d.com/threads/flight-sim-starter-script-files-included.42616/

which i have translated to 2D and C# (well i hope so)

I create a simple object, with RigidBody2D but guess.. nothing happens when i hit jump; i want the plane to have some 'trust' ...

Can some gentleman help me out there ?

Here's what i've got so far ...

 usingUnityEngine;
 usingSystem.Collections;
 
 publicclassFly : MonoBehaviour {
 
 publicfloatthrottleDelta = 0.08f; //Thisdefineshowfastthethrottlevaluechanges
 publicfloataccelerateConst;
 publicfloatdecelerateConst = 0.065f; //Ifoundthisvaluegivessemi-realisticdeceleration, changeasyouseefit.
 publicfloatmaxSpeed = 100f;
 publicfloatspeedConst = 100f;
 publicfloatthrottleConst = 30f;
 publicfloatairbrakeConst = 30f;
 
 publicfloatliftConst; //Anotherarbitraryconstant, changeitasyouseefit.
 publicfloatdragConst; //NotethatthisisNOTthesameastherigidbodydrag. Thisisusedfortheairbrake
 publicfloatangleOfAttack; //Effectiverange: 0 <= angleOfAttack <= 20
 publicfloatgravityConst = -9.81f; //Anarbitrarygravityconstant, thereisnoparticularreasonithastobe9.8...
 publicfloatmaxDiveForce ;
 publicfloatnoseDiveConst;
 publicfloatminSmooth;
 publicfloatmaxSmooth;
 publicfloatmaxControlSpeedPercent = 75f; //Whenyourspeediswithentherangedefinedbythesetwovariables, yourship'srotationsensitivityfluxuates.
 publicfloatminControlSpeedPercent = 25f; //Ifyoureachthespeeddefinedbyeitherofthese, yourshiphasreachedit'smaxorminsensitivity.
 
 //Adding
 publicfloatangleOfIncidence, throttle;
 publicfloatpitch, roll, yaw;
 publicintlevelFlightPercent;
 
 publicboollockedConst;
 publicintrotationConst;
 publicintpitchConst = 50;
 publicintrollConst = 50;
 publicintyawConst = 15;
 
 //Thesesetthesensitivityofeachindividualaxis. Ifyouwanthighersensitivityonpitchforexample, changethisvalue.
 publicfloatpitchDelta = 1.05f;
 publicfloatrollDelta = 1.05f;
 publicfloatyawDelta = 1.05f;
 
 //AirplaneAerodynamics - Istronglyreccomendnottouchingthese...
 publicfloattrueSmooth;
 publicfloatsmoothRotation;
 publicfloattruePitch;
 publicfloattrueRoll;
 publicfloattrueYaw;
 publicfloatthrust;
 publicfloattrueThrust;
 publicfloattrueDrag;
 publicfloatnosePitch;
 publicfloatattitude;
 
 //Usethisforinitialization
 voidStart () {
 smoothRotation = minSmooth + 0.01f;
 if (lockedConst == true)
 {
 pitchConst = rotationConst;
 rollConst = rotationConst;
 yawConst = rotationConst;
 Cursor.visible = false;
 }
 }
 
 //Updateiscalledonceperframe
 voidUpdate () {
 
 //CalculatingAngleofAttack
 attitude = -(Vector2.Angle(Vector2.up, transform.forward)-90);
 angleOfIncidence = attitude - angleOfAttack;
 
 pitch = 0f * pitchConst;
 
 
 pitch *= pitchDelta * Time.deltaTime;
 
 //SmothingRotations...
 if ((smoothRotation > minSmooth)&&(smoothRotation < maxSmooth)) {
 smoothRotation = Mathf.Lerp (smoothRotation, trueThrust, Time.deltaTime);
 }
 
 if (smoothRotation <= minSmooth) {
 smoothRotation = smoothRotation + 0.01f;
 }
 
 if ((smoothRotation >= maxSmooth) &&(trueThrust < (maxSpeed*(maxControlSpeedPercent/100f)))) {
 smoothRotation = smoothRotation -0.1f;
 }
 
 trueSmooth = Mathf.Lerp (trueSmooth, smoothRotation, 5f* Time.deltaTime);
 truePitch = Mathf.Lerp (truePitch, pitch, trueSmooth * Time.deltaTime);
 
 
 if (Input.GetButton ("Jump")) {
 throttle = 2130f;
 } else {
 throttle = 0f;
 }
 
 
 if ( throttle/speedConst >= trueThrust)
 {
 trueThrust = Mathf.SmoothStep (trueThrust, throttle/speedConst, accelerateConst * Time.deltaTime);
 }
 if (throttle/speedConst < trueThrust)
 {
 trueThrust = Mathf.Lerp (trueThrust, throttle/speedConst, decelerateConst * Time.deltaTime);
 }
 
 // * * Nowweareapplyinglift, gravityandlevelflighttoairplane.
 GetComponent<Rigidbody2D>().drag = liftConst*((trueThrust)*(trueThrust));
 trueDrag = dragConst*((trueThrust)*(trueThrust));
 
 if (trueThrust <= (maxSpeed/levelFlightPercent))
 {
 
 nosePitch = Mathf.Lerp (nosePitch, maxDiveForce, noseDiveConst * Time.deltaTime);
 }
 else
 {
 nosePitch = Mathf.Lerp (nosePitch, 0, 2* noseDiveConst * Time.deltaTime);
 }
 }
 
 
 voidFixedUpdate () {
 //SeperatedaddRelativeForcesowehavebettercontroloverwhenwewantthemtorun.
 if (trueThrust <= maxSpeed)
 {
 //HorizontalForce
 GetComponent<Rigidbody2D>().AddRelativeForce (newVector2(0f, (trueThrust - trueDrag)*5f));
 transform.Translate(0,0,(trueThrust-trueDrag));
 }
 
 GetComponent<Rigidbody2D>().AddForce (newVector2 (0,(GetComponent<Rigidbody2D>().drag - gravityConst)), ForceMode2D.Force);
 
 transform.Rotate (truePitch,-trueYaw,trueRoll);
 Debug.Log (GetComponent<Rigidbody2D> ().drag - gravityConst);
 GetComponent<Rigidbody2D> ().AddTorque (nosePitch / 200f);
 
 }
 }
 [/code]