I wont to use this 700mm blades not for helicopter. Due to that I would like to know at what RPM this blades are made to work at or will withstand ? What is the power of the engines that drives them? What is the approximate thrust or weight of the helicopter?
Trex 600/HK-600GT bolt hole is 4 mm fit.
Trex 600/HK-600GT blade thickness is 12 mm fit.
They do fit on Trex 600/HK-600GT but stretched version with 700-er tail boom. Due to lenght of blades u must consider it will touch the tail rotor. Unless you stretch the boom. An also take into account the turn momentum from longer blades is stronger you have to install also longer tail blades PRODUCT ID: TIG_tail_105 but again longer tail blades will touch the ground. And stronger motor is advised, smaler pinion for slowing the headspead.
These blades are 12mm grip and will fit the 600 but you will need to stretch the tail. The 700 grips are 14mm so you will need to use a shim washer on the 700 grip. I think thats right anyway I only have a set on order.
I used these in a Trex 600 stretched to 700. Blades balanced fine out of the box, not perfect, but better than I expected. These are very stiff blades and very strong. They felt good in the air but have not flown 3D with them as my helicopter is set up for aerial photography spinning at around 1600 rpm.
These blades do NOT have a safety wire in them if that concerns you.