diff --git a/jalhyd_branch b/jalhyd_branch
index cbfd46d6cda5e297ae169dbe1955014070a98636..d0b9a50d4d8e0d44bd133d969ef995101f8ee174 100644
--- a/jalhyd_branch
+++ b/jalhyd_branch
@@ -1 +1 @@
-52-dever-calcul-du-debit-corrige-en-utilisant-la-charge-dans-les-formules
+172-lechapt-et-calmon-ajouter-les-pertes-de-charges-singulieres
diff --git a/src/app/calculators/lechapt-calmon/lechapt-calmon.config.json b/src/app/calculators/lechapt-calmon/lechapt-calmon.config.json
index 34d15a7056d071f5c39b96d6ee4419e170bffde7..87cf30bd5b204cb5bf2515ac0f3313f756593f53 100644
--- a/src/app/calculators/lechapt-calmon/lechapt-calmon.config.json
+++ b/src/app/calculators/lechapt-calmon/lechapt-calmon.config.json
@@ -21,7 +21,8 @@
             "Q",
             "D",
             "J",
-            "Lg"
+            "Lg",
+            "Ks"
         ]
     },
     {
diff --git a/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json b/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json
index 1d9ee60248759d6235c827ccaabe84452a08ae33..ac06af18ff8477f1befc27e4dbb7f6f5c2031689 100644
--- a/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json
+++ b/src/app/calculators/lechapt-calmon/lechapt-calmon.en.json
@@ -18,6 +18,10 @@
     "Q": "Flow",
     "D": "Pipe diameter",
     "J": "Head drop",
+    "Ks": "Singular head loss coefficient",
     "Lg": "Pipe length",
-    "fs_param_calc": "Calculation parameters"
+    "fs_param_calc": "Calculation parameters",
+    "Jl": "Linear head loss",
+    "Kl": "Linear head loss coefficient",
+    "fD": "Darcy friction factor"
 }
\ No newline at end of file
diff --git a/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json b/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json
index dbdb0e4dce1ada783603a6c5a71aaa27e1f7b1cd..4f1a5506aa187262c117b8627d681eb62083afa7 100644
--- a/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json
+++ b/src/app/calculators/lechapt-calmon/lechapt-calmon.fr.json
@@ -17,6 +17,10 @@
     "fs_hydraulique": "Caractéristiques hydrauliques",
     "D": "Diamètre du tuyau",
     "J": "Perte de charge",
+    "Ks": "Coefficient de perte de charge singulière",
     "Lg": "Longueur du tuyau",
-    "fs_param_calc": "Paramètres de calcul"
+    "fs_param_calc": "Paramètres de calcul",
+    "Jl": "Perte de charge linéaire",
+    "Kl": "Coefficient de perte de charge linéaire",
+    "fD": "Coefficient de perte de charge de Darcy"
 }
\ No newline at end of file