Sorry About The Bad Language, I Was Very Nervous, And On A High From Flying The Speed Demon :). br First time Taking up the rad jet ultra ,, after its been crashed,, br I had to warped back with boiling water and hair dryer 1 tube of foam to foam glue ,, then added some rudders with 3.7g servos. br Setup br Stock out the box rad jet ,, with over sized lipo {recommended 1600mah 4cell} , Has in it zippy compact 35c 2200 4cell, running on the larger 4cell prop.