    <SEC-DOCUMENT>0001213900-25-074193-index.html : 20250811
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    <ACCEPTANCE-DATETIME>20250811142834
    ACCESSION NUMBER:		0001213900-25-074193
    CONFORMED SUBMISSION TYPE:	S-1/A
    PUBLIC DOCUMENT COUNT:		29
    FILED AS OF DATE:		20250811
    DATE AS OF CHANGE:		20250811

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Trailblazer Acquisition Corp.
    		CENTRAL INDEX KEY:			0002075310
    		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
    		ORGANIZATION NAME:           	05 Real Estate & Construction
    		EIN:				000000000
    		STATE OF INCORPORATION:			E9
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		S-1/A
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-288651
    		FILM NUMBER:		251201488

    	BUSINESS ADDRESS:
    		STREET 1:		152 WEST 57TH STREET, 27TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    		BUSINESS PHONE:		212-621-8777

    	MAIL ADDRESS:
    		STREET 1:		152 WEST 57TH STREET, 27TH FLOOR
    		CITY:			NEW YORK
    		STATE:			NY
    		ZIP:			10019
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-1/A
    <SEQUENCE>1
    <FILENAME>ea0248430-02.htm
    <DESCRIPTION>REGISTRATION STATEMENT
    <TEXT>
    Document 1 - file: ea0248430-02.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-1.1
    <SEQUENCE>2
    <FILENAME>ea024843002ex1-1_trail.htm
    <DESCRIPTION>FORM OF UNDERWRITING AGREEMENT
    <TEXT>
    Document 2 - file: ea024843002ex1-1_trail.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.2
    <SEQUENCE>3
    <FILENAME>ea024843002ex5-2_trail.htm
    <DESCRIPTION>OPINION OF APPLEBY (CAYMAN) LTD., CAYMAN ISLANDS COUNSEL TO THE REGISTRANT
    <TEXT>
    Document 3 - file: ea024843002ex5-2_trail.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>4
    <FILENAME>ea024843002ex10-1_trail.htm
    <DESCRIPTION>FORM OF LETTER AGREEMENT AMONG THE REGISTRANT, TRAILBLAZER SPONSOR LLC AND EACH OF THE OFFICERS AND DIRECTORS OF THE REGISTRANT.
    <TEXT>
    Document 4 - file: ea024843002ex10-1_trail.htm

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    <TYPE>EX-10.2
    <SEQUENCE>5
    <FILENAME>ea024843002ex10-2_trail.htm
    <DESCRIPTION>FORM OF INVESTMENT MANAGEMENT TRUST AGREEMENT BETWEEN CONTINENTAL STOCK TRANSFER & TRUST COMPANY AND THE REGISTRANT.
    <TEXT>
    Document 5 - file: ea024843002ex10-2_trail.htm

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    <TYPE>EX-23.1
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    <FILENAME>ea024843002ex23-1_trail.htm
    <DESCRIPTION>CONSENT OF WITHUMSMITH+BROWN, PC.
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    Document 6 - file: ea024843002ex23-1_trail.htm

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    <TYPE>EX-101.SCH
    <SEQUENCE>7
    <FILENAME>ck0002075310-20250811.xsd
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    <SEQUENCE>11
    <FILENAME>ex5-2_001.jpg
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    <SEQUENCE>23
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    <SEQUENCE>24
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    Document 24 - file: report.css

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    <SEQUENCE>43
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    <TYPE>JSON
    <SEQUENCE>45
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    <TEXT>
    Document 45 - file: MetaLinks.json

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