Barring a few things, I might be launching my EZI65 soon for an L1 cert. I definitely overdid it because I wanted it to be durable (it's fiberglassed), but also have some extra features (a go pro, and custom flight computer). The final result weighed in at about 2.28kg or about 5lbs without the motor. On paper it seems fine but from what I have been reading, my TWR may be a bit low (https://www.rocketryforum.com/threads/thrust-to-weight-ratio-5-1-or-3-1.14552/ suggests 5:1, mine is about 3:1 on average which is lower than I wanted.) Assuming that the club has an 8ft launch rail, the velocity off the rod will be just shy of 13m/s or 29mph.
I already purchased an engine from RCS because my original weight estimate was a bit lower (2kg no motor) and that seemed to meet the needs of my rocket... but I'm now I'm concerned that I picked an engine with too low average thrust. I know, I can just look at the information in other posts, I just want some feedback because I'm a bit committed to this rocket and the engine (since I already bought it <.<).
The last time I underdid the TWR it was a low powered rocket that turned ballistic missile... never again lol
I already purchased an engine from RCS because my original weight estimate was a bit lower (2kg no motor) and that seemed to meet the needs of my rocket... but I'm now I'm concerned that I picked an engine with too low average thrust. I know, I can just look at the information in other posts, I just want some feedback because I'm a bit committed to this rocket and the engine (since I already bought it <.<).
The last time I underdid the TWR it was a low powered rocket that turned ballistic missile... never again lol
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