Today I got new thrust tube from IQ Hammer for my smaller 1/5 scale G2.
First one I got month ago was 87 mm inner diameter, but with outer wall for cooling, total diameter was little bigger than 95 mm (diameter of hole on last rib), so I can't install it in fuselage.
On IQ Hammer web site this tube size is for turbines from 80 - 160N.
http://www.iqhammer.de/schubrohre/10...160n-schubrohr
Thrust tube I got today is smaller inner tube, 68 mm in diameter.
On IQ Hammer web site that tubes are for turbine from 40 - 80N.
http://www.iqhammer.de/schubrohre/10...-80n-schubrohr
For my model I want to use IQ Hammer 90 turbine.
I have now few questions, what do you think, is this tube maybe little smaller than I need?
What smaller diameter of thrust tube can made, bigger temperature in thrust tube, less thrust, faster exhaust gas and faster model...
Please tell me your opinion about this situation.
Guy from IQ Hammer told me that this tube can work, but it is on little critical size, what ever it mean...
I don't want to check knowledge of IQ Hammer guys, I'm just curious...
BTW, I got this tube for free, pay just shipping... Thanks IQ Hammer...
Thank you in advance on answers...
Mirce