diff --git a/src/include/units/physical/fps/energy.h b/src/include/units/physical/fps/energy.h
index 2cef53bd..d3bdd14e 100644
--- a/src/include/units/physical/fps/energy.h
+++ b/src/include/units/physical/fps/energy.h
@@ -35,7 +35,7 @@ struct foot_poundal : unit<foot_poundal> {};
 struct dim_energy : physical::dim_energy<dim_energy, foot_poundal, dim_force, dim_length> {};
 
 // https://en.wikipedia.org/wiki/Foot-pound_(energy)
-struct foot_pound_force : named_deduced_unit<foot_pound_force, dim_energy, pound_force, foot> {};
+struct foot_pound_force : noble_deduced_unit<foot_pound_force, dim_energy, pound_force, foot> {};
 
 
 
diff --git a/src/include/units/physical/fps/pressure.h b/src/include/units/physical/fps/pressure.h
index 7fc7e5af..673843ce 100644
--- a/src/include/units/physical/fps/pressure.h
+++ b/src/include/units/physical/fps/pressure.h
@@ -39,7 +39,7 @@ using pressure = quantity<dim_pressure, U, Rep>;
 
 struct pound_force_per_foot_sq : named_scaled_unit<pound_force_per_foot_sq, "lbf ft2", si::prefix, ratio<32'174'049, 1'000'000>, poundal_per_foot_sq> {};
 
-// struct pound_force_per_foot_sq : named_deduced_unit<pound_force_per_foot_sq, dim_pressure, pound_force, square_ft> {};
+// struct pound_force_per_foot_sq : noble_deduced_unit<pound_force_per_foot_sq, dim_pressure, pound_force, square_ft> {};
 
 struct pound_force_per_inch_sq : named_scaled_unit<pound_force_per_inch_sq, "psi", si::prefix, ratio<1, 144>, pound_force_per_foot_sq> {};
 
diff --git a/src/include/units/physical/fps/speed.h b/src/include/units/physical/fps/speed.h
index d0091760..1f9badf7 100644
--- a/src/include/units/physical/fps/speed.h
+++ b/src/include/units/physical/fps/speed.h
@@ -37,9 +37,9 @@ using speed = quantity<dim_speed, U, Rep>;
 
 struct mile_per_hour : deduced_unit<mile_per_hour, dim_speed, mile, hour>{};
 
-struct nautical_mile_per_hour : deduced_unit<nautical_mile_per_hour, dim_speed, nautical_mile, hour>{};
+struct nautical_mile_per_hour :named_deduced_derived_unit<nautical_mile_per_hour, dim_speed, "knot", no_prefix, nautical_mile, hour>{};
 
-struct knot : alias_unit<nautical_mile_per_hour, "knot", si::prefix> {};
+struct knot : alias_unit<nautical_mile_per_hour, "knot", no_prefix> {};
 
 
 inline namespace literals {
diff --git a/src/include/units/unit.h b/src/include/units/unit.h
index 500c2f5c..e4c06b4d 100644
--- a/src/include/units/unit.h
+++ b/src/include/units/unit.h
@@ -182,18 +182,36 @@ struct deduced_unit : downcast_child<Child, detail::deduced_unit<Dim, U, URest..
 template<typename Child, DerivedDimension Dim, Unit U, Unit... URest>
   requires detail::same_scaled_units<typename Dim::recipe, U, URest...> &&
            (U::is_named && (URest::is_named && ... && true))
-struct named_deduced_unit : downcast_child<Child, detail::deduced_unit<Dim, U, URest...>> {
+// TODO - 'noble' is placeholder to sort of mean can pass its name on to other deduced units
+struct noble_deduced_unit : downcast_child<Child, detail::deduced_unit<Dim, U, URest...>> {
   static constexpr bool is_named = true;
   static constexpr auto symbol = detail::deduced_symbol_text<Dim, U, URest...>();
   using prefix_family = no_prefix;
 };
 
-// template<typename Child, Dimension Dim, basic_fixed_string Symbol, PrefixFamily PF, Unit U, Unit... Us>
-// struct named_deduced_derived_unit : downcast_child<Child, detail::deduced_derived_unit<Dim, U, Us...>> {
-//   static constexpr bool is_named = true;
-//   static constexpr auto symbol = Symbol;
-//   using prefix_family = PF;
-// };
+
+/**
+ * @brief A named unit with a deduced ratio 
+ *
+ * Defines a new unit with a deduced ratio and the given symbol based on the recipe from the provided
+ * derived dimension. The number and order of provided units should match the recipe of the
+ * derived dimension. All of the units provided should also be a named ones so it is possible
+ * to create a deduced symbol text.
+ *
+ * @tparam Child inherited class type used by the downcasting facility (CRTP Idiom)
+ * @tparam Dim a derived dimension recipe to use for deduction
+ * @tparam Symbol a short text representation of the unit
+ * @tparam PF no_prefix or a type of prefix family
+ * @tparam U the unit of the first composite dimension from provided derived dimension's recipe
+ * @tparam URest the units for the rest of dimensions from the recipe
+ */
+template<typename Child, DerivedDimension Dim, basic_symbol_text Symbol, PrefixFamily PF, Unit U, Unit... URest>
+  requires detail::same_scaled_units<typename Dim::recipe, U, URest...>
+struct named_deduced_derived_unit : downcast_child<Child, detail::deduced_unit<Dim, U, URest...>> {
+  static constexpr bool is_named = true;
+  static constexpr auto symbol = Symbol;
+  using prefix_family = PF;
+};
 
 /**
  * @brief An aliased named unit