Easy 8 minutes on a 2200mAh 4S, landing around storage voltage.

I used straight standoffs at the front (you can see in the more recent photos), rather than the dumbbell shape ones it came with, because the 3D printed micro FPV camera mounts I use only fit over straight ones. I haven't had any issues with any of the props I've used. 1mm clearance is plenty & completely normal on minquad frames. If/when the prop flexes, it can only get further away from the standoffs/frame - you're flexing, not stretching!

I have replaced with straight standoffs but still not happy about the minute clearance, also if I hit some scraggle and a prop flexes upwards its going to hit the top plate.

I noticed that the XL7 now comes with 294mm not 284mm motor to motor so I have asked for my arms to be replaced with the new variant which no doubt has been modified due to this issue.

I've built & flown many different frames with similar clearances & it's literally not once been an issue for me. Like I said, if a prop does bend upwards the tip will in fact curve further away from the standoff & the top plate.

I'm having the same problem. I first bought "Gemfan 7042 Flash Propeller 7x4.2" and while they don't touch the standoffs, the clearance is less than a millimetre. As soon as I take off, I can hear them touching the top plate because that's a few millimetres wider and the props are flexing up. Once I move them by hand I see where they touch. I was hoping that other props would work and these did: "HQ Durable Prop 7035 7X3.5X3V1S". They are just that 0.3 mm shorter. Still the situation is a bit anoying. BlueFish, if you found a solution or want to exchange ideas, let me know.

Gemfan Flash 7042.

Nope, I don't do any long distance.

Thanks! It's not my best work, but I found it surprisingly cramped considering it's a 7" frame! Guess I'm just not used to building with 28mm standoffs.

I was suprised when I saw all the mounting on the top plate. 7" frame isn't really any bigger than a 220 from the looks of it.

The actual body is substantially smaller than my 6" Armattan F1, but I guess the size of the body doesn't have to follow the size of the arms - you could have a 7" pod build with less space in the middle than a 5" Alien clone.

2200uF, it came with the Typhoon32.