diff --git a/src/model/boat.rs b/src/model/boat.rs
index 4106393..115acec 100644
--- a/src/model/boat.rs
+++ b/src/model/boat.rs
@@ -21,9 +21,9 @@ pub struct Boat {
     pub boatbuilder: Option<String>,
     pub default_destination: Option<String>,
     #[serde(default = "bool::default")]
-    convert_handoperated_possible: bool,
+    pub convert_handoperated_possible: bool,
     #[serde(default = "bool::default")]
-    default_shipmaster_only_steering: bool,
+    pub default_shipmaster_only_steering: bool,
     #[serde(default = "bool::default")]
     skull: bool,
     #[serde(default = "bool::default")]
diff --git a/src/model/logbook.rs b/src/model/logbook.rs
index 5d83f12..156ad8e 100644
--- a/src/model/logbook.rs
+++ b/src/model/logbook.rs
@@ -126,6 +126,7 @@ pub enum LogbookCreateError {
     NotYourEntry,
     ArrivalSetButNotRemainingTwo,
     OnlyAllowedToEndTripsEndingToday,
+    CantChangeHandoperatableStatusForThisBoat,
 }
 
 impl From<LogbookUpdateError> for LogbookCreateError {
@@ -302,6 +303,12 @@ ORDER BY departure DESC
             return Err(LogbookCreateError::BoatNotFound);
         };
 
+        if log.shipmaster_only_steering != boat.default_shipmaster_only_steering {
+            if !boat.convert_handoperated_possible {
+                return Err(LogbookCreateError::CantChangeHandoperatableStatusForThisBoat);
+            }
+        }
+
         if boat.amount_seats == 1 && log.rowers.is_empty() {
             log.rowers = vec![created_by_user.id];
         }
diff --git a/src/tera/log.rs b/src/tera/log.rs
index 241f36c..2c618b0 100644
--- a/src/tera/log.rs
+++ b/src/tera/log.rs
@@ -214,6 +214,7 @@ async fn create_logbook(
         Err(LogbookCreateError::NotYourEntry) => Flash::error(Redirect::to("/log"), "Nicht deine Ausfahrt!"),
         Err(LogbookCreateError::ArrivalSetButNotRemainingTwo) => Flash::error(Redirect::to("/log"), "Ankunftszeit gesetzt aber nicht Distanz + Strecke"),
         Err(LogbookCreateError::OnlyAllowedToEndTripsEndingToday) => Flash::error(Redirect::to("/log"), "Nur Ausfahrten, die in der letzten Woche enden dürfen eingetragen werden. Für einen Nachtrag schreibe alle Daten Philipp (Tel. nr. siehe Signal oder it@rudernlinz.at)."),
+        Err(LogbookCreateError::CantChangeHandoperatableStatusForThisBoat) => Flash::error(Redirect::to("/log"), "Handsteuer-Status dieses Boots kann nicht verändert werden."),
 
     }
 }