diff --git a/nullptr/analyzer.py b/nullptr/analyzer.py
index ff18f83..c0cc9f5 100644
--- a/nullptr/analyzer.py
+++ b/nullptr/analyzer.py
@@ -32,11 +32,23 @@ class Analyzer:
       resources = m.imports if sellbuy == 'sell' else m.exports
       if resource in resources:
         yield m
+  
+  def find_closest_market(self, resource, sellbuy, location):
+    market = None
+    distance = None
+    for m in self.find_markets(resource, sellbuy):
+      system = self.store.get(System, m.system())
+      p = self.find_path(location, system)
+      if p is None: continue
+      if distance is None or len(p) < distance:
+        market = m
+        distance = len(p)
+    return market
+      
  
   def get_jumpgate(self, system):
     gates = self.store.all_members(system, Jumpgate)
     return next(gates, None)
-
    
   def find_path(self, orig, to, depth=100, seen=None):
     if depth < 1: return None
diff --git a/nullptr/api.py b/nullptr/api.py
index c66a5d3..8fd56c6 100644
--- a/nullptr/api.py
+++ b/nullptr/api.py
@@ -221,8 +221,10 @@ class Api:
       return ship
     
   def jump(self, ship, system):
+    if type(system) == System:
+      system = system.symbol
     data = {
-      "systemSymbol": system.symbol
+      "systemSymbol": system
     }
     data = self.request('post', f'my/ships/{ship}/jump', data)
     if 'nav' in data:
diff --git a/nullptr/commander.py b/nullptr/commander.py
index e9eb09c..58a18dd 100644
--- a/nullptr/commander.py
+++ b/nullptr/commander.py
@@ -99,9 +99,8 @@ class Commander(CommandLine):
       self.set_mission(arg)
     self.print_mission()
   
-  def do_mset(self, args):
+  def do_mset(self, nm, val):
     if not self.has_ship(): return
-    nm, val = args.split(' ')
     self.centcom.set_mission_param(self.ship, nm, val)
   
   def active_contract(self):
@@ -124,6 +123,23 @@ class Commander(CommandLine):
     self.centcom.set_mission_param(self.ship, 'destination', destination)
     self.centcom.set_mission_param(self.ship, 'contract', contract.symbol)
     self.print_mission()
+  
+  def do_chaul(self):
+    if not self.has_ship(): return     
+    contract = self.active_contract()
+    delivery = contract.unfinished_delivery()
+    if delivery is None:
+      raise CommandError('no delivery')
+    resource = delivery['trade_symbol']
+    destination = delivery['destination']
+    m = self.analyzer.find_closest_market(resource, 'buy', destination)
+    site = self.store.get(Waypoint, m.symbol)
+    self.set_mission('mine')
+    self.centcom.set_mission_param(self.ship, 'site', site)
+    self.centcom.set_mission_param(self.ship, 'resource', resource)
+    self.centcom.set_mission_param(self.ship, 'destination', destination)
+    self.centcom.set_mission_param(self.ship, 'contract', contract.symbol)
+    self.print_mission()
     
   def do_register(self, faction):
     self.api.register(faction.upper())
diff --git a/nullptr/mission.py b/nullptr/mission.py
index 9574ab2..c4cab2e 100644
--- a/nullptr/mission.py
+++ b/nullptr/mission.py
@@ -2,8 +2,10 @@ from nullptr.store import Store
 from nullptr.models.base import Base
 from nullptr.models.waypoint import Waypoint
 from nullptr.models.contract import Contract
+from nullptr.models.system import System
 from nullptr.models.survey import Survey
 from nullptr.models.ship import Ship
+from nullptr.analyzer import Analyzer
 from time import time
 import logging
 from nullptr.util import *
@@ -42,6 +44,7 @@ class Mission:
     self.store = store
     self.api = api
     self.next_step = 0
+    self.analyzer = Analyzer(self.store)
 
   def sts(self, nm, v):
     if issubclass(type(v), Base):
@@ -121,8 +124,109 @@ class Mission:
         self.status(next_step[result])
     print(f'{self.ship} {status} -> {self.status()}')
 
+class BaseMission(Mission):
+  def step_go_dest(self):
+    destination = self.rst(Waypoint, 'destination')
+    if self.ship.location() == destination:
+      return
+    self.api.navigate(self.ship, destination)
+    self.next_step = self.ship.arrival
+  
+  def step_go_site(self):
+    site = self.rst(Waypoint,'site')
+    if self.ship.location() == site:
+      return
+    self.api.navigate(self.ship, site)
+    self.next_step = self.ship.arrival
+    
+  def step_unload(self):
+    contract = self.rst(Contract, 'contract')
+    delivery = self.st('delivery')
+    if delivery == 'sell':
+      return self.step_sell(False)
+    typs = self.ship.deliverable_cargo(contract)
+    if len(typs) == 0:
+      return 'done'
+    self.api.deliver(self.ship, typs[0], contract)
+    if len(typs) == 1:
+      return 'done'
+    else:
+      return 'more'
 
-class MiningMission(Mission): 
+  def step_sell(self, except_resource=True):
+    target = self.st('resource')
+    market = self.store.get('Marketplace', self.ship.location_str)
+    sellables = market.sellable_items(self.ship.cargo.keys())
+    if target in sellables and except_resource:
+      sellables.remove(target)
+    if len(sellables) == 0:
+      return 'done'
+    self.api.sell(self.ship, sellables[0])
+    if len(sellables) == 1:
+      return 'done'
+    else:
+      return 'more'
+  
+  def step_load(self):
+    cargo_space = self.ship.cargo_capacity - self.ship.cargo_units
+    resource = self.st('resource')
+    self.api.buy(self.ship, resource, cargo_space)
+  
+  def travel(self, nm):
+    dest = self.rst(Waypoint, nm)
+    traject = self.st('traject')
+    loc = self.ship.location()
+    if dest == loc:
+      self.sts('traject', None)
+      return 'done'
+    elif traject is None:
+      print(f'calculating path to {dest}')
+      traject = self.calculate_traject(dest)
+    hop = traject.pop(0)
+    if len(hop.split('-')) == 3:
+      self.api.navigate(self.ship, hop)
+      self.next_step = self.ship.arrival
+    else:
+      self.api.jump(self.ship, hop)
+      self.next_step = self.ship.cooldown
+    
+    self.sts('traject', traject)
+    return 'more'
+  
+  def calculate_traject(self, dest):
+    loc = self.ship.location()
+    loc_sys = self.store.get(System, loc.system())
+    loc_jg = self.analyzer.get_jumpgate(loc_sys)
+    dest_sys = self.store.get(System, dest.system())
+    dest_jg = self.analyzer.get_jumpgate(dest_sys)
+    path = self.analyzer.find_path(loc_sys, dest_sys)
+    result = []
+    print(loc.symbol, loc_jg.symbol)
+    if loc.symbol != loc_jg.symbol:
+      result.append(loc_jg.symbol)
+    result += [s.symbol for s in path[1:]]
+    if dest_jg.symbol != dest.symbol:
+      result.append(dest.symbol)
+    print(result)
+    return result
+    
+  def step_travel_site(self):
+    return self.travel('site')
+  
+  def step_travel_dest(self):
+    return self.travel('destination')
+    
+  def step_dock(self):
+    self.api.dock(self.ship)
+ 
+  def step_refuel(self):
+    if self.ship.fuel_current < 100:
+      self.api.refuel(self.ship)
+       
+  def step_orbit(self):
+    self.api.orbit(self.ship)
+    
+class MiningMission(BaseMission): 
   @classmethod
   def params(cls):
     return {
@@ -185,48 +289,7 @@ class MiningMission(Mission):
       return 'more'
     else:
       return 'done'
-    
-  def step_sell(self, except_resource=True):
-    target = self.st('resource')
-    market = self.store.get('Marketplace', self.ship.location_str)
-    sellables = market.sellable_items(self.ship.cargo.keys())
-    if target in sellables and except_resource:
-      sellables.remove(target)
-    if len(sellables) == 0:
-      return 'done'
-    self.api.sell(self.ship, sellables[0])
-    if len(sellables) == 1:
-      return 'done'
-    else:
-      return 'more'
-      
-  def step_go_dest(self):
-    destination = self.rst(Waypoint, 'destination')
-    if self.ship.location() == destination:
-      return
-    self.api.navigate(self.ship, destination)
-    self.next_step = self.ship.arrival
-
-  def step_dock(self):
-    self.api.dock(self.ship)
-
-  def step_unload(self):
-    contract = self.rst(Contract, 'contract')
-    delivery = self.st('delivery')
-    if delivery == 'sell':
-      return self.step_sell(False)
-    typs = self.ship.deliverable_cargo(contract)
-    if len(typs) == 0:
-      return 'done'
-    self.api.deliver(self.ship, typs[0], contract)
-    if len(typs) == 1:
-      return 'done'
-    else:
-      return 'more'
   
-  def step_refuel(self):
-    self.api.refuel(self.ship)
-    
   def step_dispose(self):
     contract = self.rst(Contract, 'contract')
     typs = self.ship.nondeliverable_cargo(contract)
@@ -239,22 +302,10 @@ class MiningMission(Mission):
     else:
       return 'done'
   
-  
-  def step_orbit(self):
-    self.api.orbit(self.ship)
-
-  def step_go_site(self):
-    site = self.rst(Waypoint,'site')
-    if self.ship.location() == site:
-      return
-    self.api.navigate(self.ship, site)
-    self.next_step = self.ship.arrival
-    
-class SurveyMission(Mission):
+class SurveyMission(BaseMission):
   def start_state(self):
     return 'survey'
   
-    
   def steps(self):
     return {
       'survey': (self.step_survey, 'survey')
@@ -265,10 +316,45 @@ class SurveyMission(Mission):
     #pprint(result, 2)
     self.next_step = self.ship.cooldown
 
+class HaulMission(BaseMission):
+  def start_state(self):
+    return 'orbit2'
+  
+  @classmethod
+  def params(cls):
+    return {
+      'site': MissionParam(Waypoint, True),
+      'resource': MissionParam(str, True),
+      'destination': MissionParam(Waypoint, True),
+      'delivery': MissionParam(str, True, 'deliver'),
+      'contract': MissionParam(Contract, False)
+    }
+  
+  def steps(self):
+    return {
+      'travel': (self.step_travel_site, {
+        'more': 'travel',
+        'done': 'dock'
+      }),
+      'dock': (self.step_dock, 'load'),
+      'load': (self.step_load, 'orbit'),
+      'orbit': (self.step_orbit, 'travel_back'),
+      'travel_back': (self.step_travel_dest, {
+        'more': 'travel_back',
+        'done': 'dock2'
+      }),
+      'dock2': (self.step_dock, 'unload'),
+      'unload': (self.step_unload, 'refuel'),
+      'refuel': (self.step_refuel, 'orbit2'),
+      'orbit2': (self.step_orbit, 'travel')
+    }
+  
+  
 def create_mission(mtype, ship, store, api):
   types = {
     'survey': SurveyMission,
-    'mine': MiningMission
+    'mine': MiningMission,
+    'haul': HaulMission
   }
   if mtype not in types:
     logging.warning(f'invalid mission type {mtype}')
diff --git a/nullptr/models/base.py b/nullptr/models/base.py
index dad656a..5f80271 100644
--- a/nullptr/models/base.py
+++ b/nullptr/models/base.py
@@ -7,11 +7,12 @@ class Base:
   store: object
   
   def __init__(self, symbol, store):
-    self.disable_dirty = False
+    self.disable_dirty = True
     self.store = store
     self.symbol = symbol
     self.define()
-  
+    self.disable_dirty = False
+    
   def define(self):
     pass
     
diff --git a/nullptr/store.py b/nullptr/store.py
index 4e411fe..91ef91d 100644
--- a/nullptr/store.py
+++ b/nullptr/store.py
@@ -124,6 +124,7 @@ class Store:
   
     if system not in self.system_members:
       return 
+      print('typ', typ)
     for m in self.system_members[system]:
       if typ is None or type(m) == typ:
         yield m