Reward for a Hero, by E.C. Tubb (epub/Kindle)
The cause was a weakened combustion chamber which had allowed a shaft of flame to break loose from its confines. It was an accident—a tragic accident in space—that left John Hammond with a ruined body. But life goes on, with a little help from a doctor. But what if Hammond didn't want to live? <P>A classic science fiction story by the author of the Dumarest saga!