ORIGINAL: Skarn
ORIGINAL: Missileman
HDX is not a T-Rex but another 450 size heli distributed by Helidirect.com , a Nice heli though.
T-Rex made by align has the XL, SA, and several SE models.
XL is all plastic but a nice heli and great place to start.
SA has metal sides and many plastic parts in the head and tail.
SE is top of the line and has carbon fiber frame and mostly metal head and tail.
HDX (not made by Align) is built on what is known as a super frame (some T-Rex owners upgrade to this frame) made of G10 fiberglass and has full metal head and tail. Some T-Rex parts are compatable but not all (I had to replace the feather shaft on mine and none of the T-Rex shafts would work but the T-rex main shaft and main gear set does fit)
Actually the original TREXs were the HDE and HDX version. Finless Bob actually has vids for both of these versions.....
Skarn
I remember HDE and CDE. But if Align made an HDX version then I stand corrected.
Although the current HDX is as I described and is promoted as a T-Rex on Ebay when it is not.I own one.