the batterys look to be in great shape i tested the charger and it does not work so i have a nother one i can use but i have had not had time to pull it out. the servos work you can turn them with you hand they feel like they should two of them do not move however but that is still four that do. i opend the raido TX and there is no crosion or any other signs of problems so untill i get a charger i will not know for sure. so what fuel is best or the best to start off using? also are there seal replacement parts the front one leaks as well as the back. i need a new air frame to start off with waht one would be the best/ more forgiving in the event of a crash, or the eazyest to rebuilt?