With tanker number 205 becoming visible again. Even the old "Vina Helitack" titles above the windows are again starting to show through.

This Huey was preserved at KHMT as a ground instructional trainer. This frame is sometimes incorrectly given as N490DF.

This unknown Huey has been a ground trainer at the Hemet-Ryan airtanker base since about 2002-2003. It is widely quoted as UH-1F N490DF (c/n 7108), or as UH-1H N490DF (c/n 12375). But it is neither. It has a long cabin (i.e. a UH-1D or UH-1H), so the short-cabin UH-1F c/n 7108 can be ruled out. And UH-1H N490DF was still operational with Cal Fire by 2018, as Tanker 205.
So the only known facts are that in 2003 this ground trainer still carried "Vina Helitack" titles, and tanker number 205. The long cabin means it must be a UH-1D or most likely a UH-1H. And it operated as "Copter 205" for the Vina Helitack before 2003. Suggestions most welcome!