CREATE TABLE table_8747 ("Name/Designation" TEXT, "Class" TEXT, "Range  ( varies with payload weight ) " TEXT, "Payload" TEXT, "Status" TEXT)

What is the range (varies by payload weight) for Shahab-4?
SELECT "Range (varies with payload weight)" FROM table_8747 WHERE "Name/Designation" = 'shahab-4'
SELECT "Range (varies with payload weight)" FROM "table_8747" WHERE "Name/Designation" = 'shahab-4'