if you cant use your ace editer to load aircraft place the corisponding text bellow in to your cfg and number the x with the next avalibule number

[fltsim.x]
title=CS 727-200F RIO CARGO IOB
sim=cs727200
model=f
panel=
sound=
texture=RIO
kb_checklists=
kb_reference=
atc_id=PR-IOB
atc_airline=RIO
atc_flight_number=IOB
ui_manufacturer=Boeing
ui_type=727-200 Freighter
ui_variation=RIO CARGO IOB, 2009 NP
ui_typerole=Commercial Airliner
ui_createdby=Captain Sim
description=727 Captain: 727-200 ADDON Pack v2.0\n(c) 2009 Captain Sim www.captainsim.com RIO CARGO. \n Repaint by NATH2889.\n
visual_damage=1

[fltsim.x
title=CS 727-200F TAF MTL
sim=cs727200
model=f
panel=
sound=
texture=TAF MTL
kb_checklists=
kb_reference=
atc_id=PR-MTL
atc_airline=TAF
atc_flight_number=MTL
ui_manufacturer=Boeing
ui_type=727-200 Freighter
ui_variation=TAF MTL, 2009 NP
ui_typerole=Commercial Airliner
ui_createdby=Captain Sim
description=727 Captain: 727-200 ADDON Pack v2.0\n(c) 2009 Captain Sim www.captainsim.com TAF MTL. \n Repaint by NATH2889.\n
visual_damage=1

[fltsim.x]
title=CS 727-200F TAF MTC
sim=cs727200
model=f
panel=
sound=
texture=TAF MTC
kb_checklists=
kb_reference=
atc_id=PR-MTC
atc_airline=TAF
atc_flight_number=MTC
ui_manufacturer=Boeing
ui_type=727-200 Freighter
ui_variation=TAF MTC, 2009 NP
ui_typerole=Commercial Airliner
ui_createdby=Captain Sim
description=727 Captain: 727-200 ADDON Pack v2.0\n(c) 2009 Captain Sim www.captainsim.com TAF MTC. \n Repaint by NATH2889.\n
visual_damage=1