Washington, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                         (Amendment No. ______________)*

                           TRIMBLE NAVIGATION LIMITED
                                (Name of Issuer)
                                  COMMON STOCK
                         (Title of Class of Securities)

                                   896239 10 0
                                 (CUSIP Number)

             (Date of Event Which Requires Filing of this Statement)

     Check the  appropriate  box to  designate  the rule  pursuant to which this
Schedule is filed: 

    [  ] Rule 13d-1(b) 
    [  ] Rule 13d-1(c) 
    [  ] Rule 13d-1(d)

     *The  remainder  of this cover  page  shall be filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter the disclosures provided in a prior cover page.

     The  information  required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of  Section 18 of the  Securities  Exchange
Act of 1934 ("Act") or otherwise  subject to the  liabilities of that section of
the Act but shall be subject to all other  provisions of the Act  (however,  see
the Notes).

     Potential  persons  who are to respond  to the  collection  of  information
contained  in this form are not required to respond  unless the form  displays a
currently valid OMB control number.


CUSIP No. 896239 10 0 - -------------------------------------------------------------------------------- 1. Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only). Charles Robert Trimble SSN: ###-##-#### - -------------------------------------------------------------------------------- 2. Check the Appropriate Box if a Member of a Group (See Instructions) (a)[ ] (b)[ ] - -------------------------------------------------------------------------------- 3. SEC Use Only - -------------------------------------------------------------------------------- 4. Citizenship or Place of Organization U.S.A - -------------------------------------------------------------------------------- Number of 5. Sole Voting Power.................. 1,569,458 Shares Bene- ficially 6. Shared Voting Power................ None Owned by Each Reporting 7. Sole Dispositive Power............. 1,569,458 Person With: 8. Shared Dispositive Power........... None - -------------------------------------------------------------------------------- 9. Aggregate Amount Beneficially Owned by Each Reporting Person 1,569,458 SHARES - -------------------------------------------------------------------------------- 10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) Not applicable - -------------------------------------------------------------------------------- 11. Percent of Class Represented by Amount in Row (9) 7.12% - -------------------------------------------------------------------------------- 12. Type of Reporting Person (See Instructions) IN - -------------------------------------------------------------------------------- 2

Item 1. (a) Name of Issuer : Trimble Navigation Limited (b) Address of Issuers Principal Executive Offices : 585 N. Mary Avenue Sunnyvale, CA. 94086 Item 2. (a) Name of Person Filing : Charles Robert Trimble (b) Address of Principal Business Office or, if none, Residence : Same As Above (c) Citizenship: U.S.a. (d) Title of Class of Securities: Common (e) CUSIP Number : 896239 10 0 Item 3. If this statement is filed pursuant to Section 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a: Not applicable Item 4. Ownership Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1. (a) Amount of beneficially owed: 1,569,458 (b) Percent of class: 7.12% (c) Number of shares as to which the person has: (i) Sole power to vote or to direct the vote: 1,569,458 (ii) Shared power to vote or to direct the vote: None (iii) Sole power to dispose or to direct the disposition of: 1,569,458 (iv) Shared power to dispose or to direct the disposition of: None 3

Item 5. Ownership of Five Percent or Less of Class If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ] Item 6. Ownership of More than Five Percent on Behalf of Another Person Not applicable Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company Not applicable Item 8. Identification and Classification of Members of the Group Not applicable Item 9. Notice of Dissolution of Group Not applicable Item 10. Certification Not applicable 4

SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set in this statement is true, complete and correct. Date : February 9, 1999 Signature /s/Charles R. Trimble Name/Title : Charles R. Trimble Vice Chariman Board of Directors 5