Thread: Discussion T600 stretched to a T700
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Old Nov 09, 2011, 01:35 PM
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3 miles from AMA HQ Muncie, IN.
Joined Jan 2009
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For a 700 size heli your measurement from the center of the main shaft to center of tailshaft is 910-940mm.
The Logo 600 belt is to short and a little pricey too.
If you go back to TT you will most likely have a hard time balancing the heli as it is tail heavy with all plastic parts and belt drive.
On my HK-600 to get it to the right length (930mm main to tail shaft) I had to cut off 49mm from the 700 tailboom and go with a 700XL belt. You will need longer tailboom braces to fly it in pod & boom as your 550 ones will interfear with the tail servo. I used some 4mm CF rods I had laying around at 560mm in length .
You also need to shorten the tail rotor servo push rod and solder a threaded coupler end (GreatPlanes #GPMQ 3831) onto the cut end. You may also need to add up to 20ozs. of lead weight to the very front of your frame , depending on what battery pack or packs you plan on using. This is why I use TWO 3000mah 6s packs in parallel for the added weight .
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