yep and it aint got nothin to do with bein on plane. Most of them are written for wide open throttle at 50'. There is nothing to prevent it being tested on a trailer either. The cry about hurting you boat if tied down won't hold up becuase if your stuck you are tied down in effect so if you will floor it when stuck you can floor it on the trailer. but thats just my opinion, I know i don't want one that will break on the trailer, now if I can break the trailer now we are cookin let er eat. Of course i would look at that as you shoulda been lookin at the trailer anyways because it shoudn't break either. This one oughta start somethin again LOL, i didn't do it I just wanna clear that up in advance