diff --git a/tests/expedition/expedition_dir/ship_config.yaml b/tests/expedition/expedition_dir/ship_config.yaml
index b3763f05..c057d6b5 100644
--- a/tests/expedition/expedition_dir/ship_config.yaml
+++ b/tests/expedition/expedition_dir/ship_config.yaml
@@ -1,3 +1,4 @@
+ship_speed_meter_per_second: 5.14
 adcp_config:
   num_bins: 40
   max_depth_meter: -1000.0
@@ -16,6 +17,5 @@ ctd_config:
 drifter_config:
   depth_meter: 0.0
   lifetime_minutes: 40320.0
-ship_speed_meter_per_second: 5.14
 ship_underwater_st_config:
   period_minutes: 5.0
diff --git a/virtual_ship/expedition/input_data.py b/virtual_ship/expedition/input_data.py
index a35304e6..6ee4f1c4 100644
--- a/virtual_ship/expedition/input_data.py
+++ b/virtual_ship/expedition/input_data.py
@@ -139,6 +139,9 @@ def _load_drifter_fieldset(cls, directory: str | Path) -> FieldSet:
         for g in fieldset.gridset.grids:
             g.depth = -g.depth
 
+        # read in data already
+        fieldset.computeTimeChunk(0, 1)
+
         return fieldset
 
     @classmethod
@@ -167,4 +170,7 @@ def _load_argo_float_fieldset(cls, directory: str | Path) -> FieldSet:
             if max(g.depth) > 0:
                 g.depth = -g.depth
 
+        # read in data already
+        fieldset.computeTimeChunk(0, 1)
+
         return fieldset
diff --git a/virtual_ship/expedition/verify_schedule.py b/virtual_ship/expedition/verify_schedule.py
index f96e9acc..2f0b39b7 100644
--- a/virtual_ship/expedition/verify_schedule.py
+++ b/virtual_ship/expedition/verify_schedule.py
@@ -113,6 +113,36 @@ def verify_schedule(
         else:
             time = wp_next.time
 
+    # verify instruments in schedule have configuration
+    for wp in schedule.waypoints:
+        if wp.instrument is not None:
+            for instrument in (
+                wp.instrument if isinstance(wp.instrument, list) else [wp.instrument]
+            ):
+                if (
+                    instrument == InstrumentType.ARGO_FLOAT
+                    and ship_config.argo_float_config is None
+                ):
+                    raise PlanningError(
+                        "Planning has waypoint with Argo float instrument, but configuration does not configure Argo floats."
+                    )
+                elif (
+                    instrument == InstrumentType.CTD
+                    and ship_config.argo_float_config is None
+                ):
+                    raise PlanningError(
+                        "Planning has waypoint with CTD instrument, but configuration does not configure CTDs."
+                    )
+                elif (
+                    instrument == InstrumentType.DRIFTER
+                    and ship_config.argo_float_config is None
+                ):
+                    raise PlanningError(
+                        "Planning has waypoint with drifter instrument, but configuration does not configure drifters."
+                    )
+                else:
+                    raise RuntimeError("Instrument not supported.")
+
 
 class PlanningError(RuntimeError):
     """An error in the schedule."""