EASY FLYING S.A.

                                                                   June 29, 2001

                                                                        $200,000
                                 PROMISSORY NOTE

     FOR VALUE RECEIVED,  EASY FLYING S.A., a France  corporation (the "Maker"),
having an address as  indicated  under its name,  hereby  promises to pay to the
order of NAVTECH,  INC., a Delaware corporation (the "Payee"), at its offices at
c/o Navtech Systems Support Inc., 175 Columbia Street West,  Waterloo,  Ontario,
Canada N2L 5Z5 or at such other place as the holder hereof may from time to time
designate in writing,  in immediately  available funds, the principal sum of TWO
HUNDRED  THOUSAND UNITED STATES DOLLARS (US $200,000).  The principal  amount of
this Note shall be payable on December 31, 2002 and the principal amount of this
Note bears no interest until December 31, 2002.

     The payment of all amounts due under this Note is secured by the grant of a
security  interest in 100,000  shares of Common Stock of the Payee (the "Pledged
Shares")  pursuant to a Pledge  Agreement of even date between the Maker and the
Payee (the "Pledge Agreement").

     In the  event  (a)  the  Maker  shall  (i)  fail to make  any  payment  due
hereunder,  (ii) admit in writing its inability to pay its debts as they mature;
(iii)  make  a  general  assignment  for  the  benefit  of  creditors;  (iv)  be
adjudicated  as  bankrupt  or  insolvent;  (v)  file  a  voluntary  petition  in
bankruptcy or a petition or an answer  seeking an  arrangement  with  creditors;
(vi) take advantage of any bankruptcy, insolvency or readjustment of debt law or
statute or file an answer admitting the material allegations of a petition filed
against it in any proceeding  under any such law; or (vii) have entered  against
it a court order  approving  a petition  filed  against it under any  bankruptcy
statute;  or (b)  there  shall  be a  breach  of any  representation,  warranty,
covenant or other agreement set forth in the Pledge Agreement,  then in each and
every such event (an "Event of  Default"),  the Payee may, by written  notice to
the  Maker,  declare  the  entire  unpaid  principal  amount  of this  Note then
outstanding  to be  forthwith  due and payable  whereupon  the same shall become
forthwith due and payable.

     In  addition,  in  the  event  of an  Acceleration  Event  (as  hereinafter
defined),  and only to the extent of any monies  payable to the Maker in respect
of the Pledged Shares (the "Proceeds"), the then unpaid principal amount of this
Note shall become immediately due and payable.  Further, in consideration of the
Payee  agreeing to accept as collateral for the amounts due under this Note only
the  Pledged  Shares,  in the  event  the  Proceeds  are in  excess  of the then
outstanding principal amount of this Note, to the extent permitted by applicable
law, the Payee shall be entitled to such excess.  The Payee shall be entitled to
direct the payor of the monies to pay the Proceeds directly to the Payee.

     For  purposes  hereof,  an  "Acceleration  Event"  shall be  deemed to have
occurred  if the  conditions  set forth in any one of the  following  paragraphs
shall have been satisfied:

     (i) the  Pledged  Shares  are  sold in whole  or in part  with the  written
consent of the Payee;



<PAGE>


     (ii) the  stockholders of the Payee approve a plan of complete  liquidation
of the Payee;

     (iii) the Payee sells or otherwise  disposes of all or substantially all of
its assets; or

     (iv) the Payee merges or consolidates  with any other entity, or engages in
any other business combination.

     If the  Maker  shall  fail to pay when  due,  whether  by  acceleration  or
otherwise,  all or any portion of the principal  amount hereof,  any such unpaid
amount  shall bear  interest for each day from the date it was so due until paid
in full at the rate of fifteen percent (15%) per annum, payable on demand.

     Notwithstanding  anything to the contrary  contained in this Note, the rate
of interest payable on this Note shall never exceed the maximum rate of interest
permitted under applicable law.

     This Note may not be waived,  changed,  modified or discharged  orally, but
only by an agreement in writing, signed by the party against whom enforcement of
any waiver, change, modification or discharge is sought.

     Should the  indebtedness  represented  by this Note or any part  thereof be
collected at law or in equity, or in bankruptcy, receivership or any other court
proceedings  (whether at the trial or appellate  level),  or should this Note be
placed in the hands of any agent or  attorneys  for  collection  upon default or
maturity,  the Maker  agrees to pay, in  addition  to all other  amounts due and
payable hereunder, all reasonable costs and expenses of collection or attempting
to collect this Note, including  reasonable  attorneys' fees, provided that such
costs, expenses, and fees to not exceed a total amount of US $10,000.

     The Maker and any endorsers  hereof,  for themselves  and their  respective
representatives,  successors  and  assigns,  expressly  (a)  waive  presentment,
protest, notice of dishonor,  notice of non-payment,  notice of maturity, notice
of  protest,  diligence  in  collection,  and  the  benefit  of  any  applicable
exemptions,  including,  but not limited to, exemptions claimed under insolvency
laws,  and (b)  consent  that the Payee may  release or  surrender,  exchange or
substitute  any property or other  collateral  or security now held or which may
hereafter be held as security  for the payment of this Note,  and/or may release
any  guarantor,  and/or may extend  the time for  payment of the debt  evidenced
hereby.

     Any notice, demand or request relating to any matter set forth herein shall
be in writing and shall be deemed  effective when hand  delivered,  when mailed,
postage prepaid,  by registered or certified mail, return receipt requested,  or
by  overnight  mail or courier,  or when sent by facsimile  transmission  to the
Maker at its address  stated  herein or at such other  address of which it shall
have notified the Payee in writing as aforesaid.

     The Payee  shall be  entitled  to assign  all or any  portion of its right,
title and interest in and to this Note at its sole discretion  without notice to
the Maker,  provided  that the Maker shall  continue to make  payments  required
hereunder  to the  Payee  until it has  received  notice  of change of payee for
payments as provided herein.


<PAGE>


     Notwithstanding  any  other  provision  of this  Note,  all  payments  made
hereunder shall be applied first to payment of sums payable hereunder other than
interest and principal,  secondly, interest on the principal balance outstanding
hereunder from time to time, and thirdly to principal.

     The Maker hereby agrees that the courts of the State of New York and of the
United  States of America  for the Eastern and  Southern  Districts  of New York
shall have exclusive  jurisdiction over any matter relating to this Note and the
venue for any court or other proceeding shall be Nassau County,  New York or New
York  County,  New York.  The Maker  hereby  expressly  submits to the  personal
jurisdiction  and venue of such courts for the  purposes  thereof and  expressly
waives  any  claim of  improper  venue and any claim  that  such  courts  are an
inconvenient forum.

     This Note shall be governed by, and construed in accordance  with, the laws
of the State of New York, excluding conflict of law principles thereof.

                                             EASY FLYING S.A.


                                             By:/s/ Fabrice Turrel
                                                --------------------------------
                                                Fabrice Turrel, President
                                                Address:  2 Rue Marcel Doret
                                                          Immeuble Antares
                                                          31700 Blagnac, France