User talk:73.147.211.87

January 2024
Welcome to Wikipedia. We appreciate your contributions, but in one of your recent edits to Mikoyan-Gurevich MiG-21, it appears that you have added original research, which is against Wikipedia's policies. Original research refers to material—such as facts, allegations, ideas, and personal experiences—for which no reliable, published sources exist; it also encompasses combining published sources in a way to imply something that none of them explicitly say. Please be prepared to cite a reliable source for all of your contributions. You can have a look at the tutorial on citing sources. Thank you. 49ersBelongInSanFrancisco (talk) 06:22, 13 January 2024 (UTC)