diff --git a/lib/Lacuna/DB/Result/Ships.pm b/lib/Lacuna/DB/Result/Ships.pm
index 19d59282..e64ca093 100644
--- a/lib/Lacuna/DB/Result/Ships.pm
+++ b/lib/Lacuna/DB/Result/Ships.pm
@@ -18,6 +18,8 @@ has 'hostile_action' => (
 
 sub _build_hostile_action { 0 }
 
+sub sitter_can_send { 1 }
+
 __PACKAGE__->load_components('DynamicSubclass');
 __PACKAGE__->table('ships');
 __PACKAGE__->add_columns(
diff --git a/lib/Lacuna/DB/Result/Ships/ColonyShip.pm b/lib/Lacuna/DB/Result/Ships/ColonyShip.pm
index 33ce6c0f..2730d7d4 100644
--- a/lib/Lacuna/DB/Result/Ships/ColonyShip.pm
+++ b/lib/Lacuna/DB/Result/Ships/ColonyShip.pm
@@ -19,6 +19,8 @@ use constant base_hold_size         => 0;
 use constant pilotable              => 1;
 use constant build_tags             => ['Colonization'];
 
+sub sitter_can_send() { 0 }
+
 with "Lacuna::Role::Ship::Send::Planet";
 with "Lacuna::Role::Ship::Send::Uninhabited";
 with "Lacuna::Role::Ship::Send::StarterZone";
diff --git a/lib/Lacuna/DB/Result/Ships/ShortRangeColonyShip.pm b/lib/Lacuna/DB/Result/Ships/ShortRangeColonyShip.pm
index f4c10afe..78069d74 100644
--- a/lib/Lacuna/DB/Result/Ships/ShortRangeColonyShip.pm
+++ b/lib/Lacuna/DB/Result/Ships/ShortRangeColonyShip.pm
@@ -19,6 +19,8 @@ use constant base_hold_size         => 0;
 use constant pilotable              => 1;
 use constant build_tags             => ['Colonization'];
 
+sub sitter_can_send() { 0 }
+
 with "Lacuna::Role::Ship::Send::Range";
 with "Lacuna::Role::Ship::Send::Planet";
 with "Lacuna::Role::Ship::Send::Uninhabited";
diff --git a/lib/Lacuna/RPC/Building/Embassy.pm b/lib/Lacuna/RPC/Building/Embassy.pm
index b81f3ebc..d35abee9 100644
--- a/lib/Lacuna/RPC/Building/Embassy.pm
+++ b/lib/Lacuna/RPC/Building/Embassy.pm
@@ -98,6 +98,10 @@ sub expel_member {
 sub accept_invite {
     my ($self, $session_id, $building_id, $invite_id, $message) = @_;
     my $empire = $self->get_empire_by_session($session_id);
+    if ($empire->current_session->is_sitter) {
+        confess [1015, 'Sitters cannot join alliances.'];
+    }
+    $empire->current_session->check_captcha;
     my $building = $self->get_building($empire, $building_id);
     unless ($invite_id) {
         confess [1002, 'You must specify an invite id.'];
diff --git a/lib/Lacuna/RPC/Building/SpacePort.pm b/lib/Lacuna/RPC/Building/SpacePort.pm
index 9dd2679e..bc2240cf 100644
--- a/lib/Lacuna/RPC/Building/SpacePort.pm
+++ b/lib/Lacuna/RPC/Building/SpacePort.pm
@@ -88,6 +88,7 @@ sub get_fleet_for {
             hold_size   => $ship_group->hold_size,
             quantity    => $ship_group->get_column('quantity'),
             estimated_travel_time => $travel_time,
+            image       => $ship_group->image,
         };
         push @$summary, $summation;
     }
@@ -132,7 +133,10 @@ sub get_ships_for {
                                         body_id=>$body->id });
     while (my $ship = $available_rs->next) {
       $ship->body($body);
-      eval{ $ship->can_send_to_target($target) };
+      eval{ 
+          $ship->can_send_to_target($target);
+          confess [1009, "Sitters cannot send this type of ship."] if $empire->current_session->is_sitter and not $ship->sitter_can_send;
+      };
       my $reason = $@;
       if ($reason) {
         push @unavailable, { ship => $ship->get_status, reason => $reason };
@@ -226,6 +230,7 @@ sub send_ship {
     if ($ship->hostile_action) {
         $empire->current_session->check_captcha;
     }
+    confess [1009, "Sitters cannot send this type of ship."] if $empire->current_session->is_sitter and not $ship->sitter_can_send;
     $ship->send(target => $target);
     $body->add_to_neutral_entry($ship->combat);
     return {
@@ -340,6 +345,7 @@ sub send_ship_types {
                                       {order_by => 'speed', rows => $quantity }
                                       );
         my $ship = $ships[0]; #Need to grab slowest ship
+        confess [1009, "Sitters cannot send this type of ship."] if $empire->current_session->is_sitter and not $ship->sitter_can_send;
         # We only need to check one of the ships
         $ship->can_send_to_target($target);
 
@@ -523,6 +529,7 @@ sub send_fleet {
           $empire->current_session->check_captcha;
           $captcha_check = 0;
       }
+      confess [1009, "Sitters cannot send this type of ship."] if $empire->current_session->is_sitter and not $ship->sitter_can_send;
       $body->add_to_neutral_entry($ship->combat);
       $ship->fleet_speed($speed);
       $ship->send(target => $target);