diff --git a/central-manager/lib/local/handler.c b/central-manager/lib/local/handler.c
index 8771bdd..549fb2d 100644
--- a/central-manager/lib/local/handler.c
+++ b/central-manager/lib/local/handler.c
@@ -79,7 +79,7 @@ void* managePlane(void* THREADABLE_ARGS){
 		}
 
 		/* 3. Si pas pour nous -> on attends puis on reboucle */
-		if( buffer[0] != 0x55 ){ // '01010101'(2) '55'(16)
+		if( buffer[0] == 0x55 ){ // '01010101'(2) '55'(16)
 			if( DEBUGMOD&BUF ) printf("{tcp_com}(%d)             Let request to update routine\n", index);
 			sleep(0.5);
 			continue;
@@ -88,7 +88,7 @@ void* managePlane(void* THREADABLE_ARGS){
 		/* (2) Données
 		---------------------------------------------------------*/
 		/* 1. On lit sur la socket */
-		read = recv(SOCKET, buffer, MAX_BUF_LEN, 0);
+		read = recv(SOCKET, buffer+1, MAX_BUF_LEN-1, 0);
 
 		/* 2.1. Si erreur reception (-1:erreur, 0:fermeture client propre) */
 		if( read <= 0 ){
@@ -97,8 +97,8 @@ void* managePlane(void* THREADABLE_ARGS){
 		}
 
 		/* 2.2. Si message trop court */
-		if( read != PLANE_LEN ){
-			if( DEBUGMOD&BUF ) printf("{tcp_com}(%d)             read: %d (expected: %d)\n", index, read, (int) PLANE_LEN);
+		if( read != PLANE_LEN-1 ){
+			if( DEBUGMOD&BUF ) printf("{tcp_com}(%d)             read: %d (expected: %d)\n", index, read+1, (int) PLANE_LEN);
 			continue;
 		}
 
@@ -418,7 +418,7 @@ void* manageCtrlTerm(void* THREADABLE_ARGS){
 
 			/* 3. Si on a pas trouvé -> on quitte l'udpdate */
 			if( pindex <= -1 || arg->sgca->socket[pindex] <= -1 ){
-				printf("{udp_cterm}{com}(%d)     Plane unknown or unreachable, passing\n", index);
+				printf("{udp_cterm}{com}(%d)      Plane unknown or unreachable, passing\n", index);
 				break;
 			}
 
diff --git a/plane/plane.c b/plane/plane.c
index e092c61..d7c195a 100644
--- a/plane/plane.c
+++ b/plane/plane.c
@@ -142,15 +142,14 @@ void send_data(){
     request.spd  = htonl( ctrl.speed );
 
     /* 3. Copie buffer */
-    buffer[0] = 0x55;
-    memcpy(buffer+sizeof(char)*1+sizeof(int)*0, &request.code, sizeof(char)*6 );
-    memcpy(buffer+sizeof(char)*7+sizeof(int)*0, &request.x,    sizeof(int)    );
-    memcpy(buffer+sizeof(char)*7+sizeof(int)*1, &request.y,    sizeof(int)    );
-    memcpy(buffer+sizeof(char)*7+sizeof(int)*2, &request.z,    sizeof(int)    );
-    memcpy(buffer+sizeof(char)*7+sizeof(int)*3, &request.cap,  sizeof(int)    );
-    memcpy(buffer+sizeof(char)*7+sizeof(int)*4, &request.spd,  sizeof(int)    );
+    memcpy(buffer+sizeof(char)*0+sizeof(int)*0, &request.code, sizeof(char)*6 );
+    memcpy(buffer+sizeof(char)*6+sizeof(int)*0, &request.x,    sizeof(int)    );
+    memcpy(buffer+sizeof(char)*6+sizeof(int)*1, &request.y,    sizeof(int)    );
+    memcpy(buffer+sizeof(char)*6+sizeof(int)*2, &request.z,    sizeof(int)    );
+    memcpy(buffer+sizeof(char)*6+sizeof(int)*3, &request.cap,  sizeof(int)    );
+    memcpy(buffer+sizeof(char)*6+sizeof(int)*4, &request.spd,  sizeof(int)    );
 
-    read = send(commu_socket, buffer, PLANE_DATA_LEN/sizeof(char) + 1, 0);
+    read = send(commu_socket, buffer, PLANE_DATA_LEN/sizeof(char), 0);
 
     if( read <= 0 ){
       printf("Cannot send\n");
@@ -338,7 +337,7 @@ void update(){
       /* [3] Gestion de la réponse
       =========================================================*/
       /* 1. On prépare la réponse */
-      buffer[0] = 0;
+      buffer[0] = 0x55;
       buffer[1] = request.flags;
       printf("Response flags : %d\n", request.flags);