I have just checked out the GoolRC t36 on Amazon, the frame looks like an F36; solid with sloped motor support arms. If you want more flight time, switch to 2 bladed props and bigger battery (you will need to cut the front battery compartment wall). I run 300 mAh and get flight times between 5 and 7 minutes in the F36. Best time so far is a stock F36 with a 550 mAh BETAFPV battery, 9 minutes 35 seconds. NOTE: not all of these small quads have strong enough motors to handle the 550 battery.
I have an assortment of these small quads in various sizes and motors. The reality is that flight times are between 4-8 minutes depending on the particular arrangement and how you fly. A flight over 9 minutes is out there. That is pretty much the limit for these small, brushed motor quads.
I have an assortment of these small quads in various sizes and motors. The reality is that flight times are between 4-8 minutes depending on the particular arrangement and how you fly. A flight over 9 minutes is out there. That is pretty much the limit for these small, brushed motor quads.