Happymodel Mobula 7 V4

This is one of the easiest to use and preferred frames for UDL’s Igniter class. It's not quite as durable as other frames but still seems to hold up well enough for Igniters on the 30,500 RPM limit. The light weight of this frame paired with the low mount flight controller makes this the preferred frame for many HDZero builds. This frame also tends to be the most straightforward to build with and has the least amount of quirks! If you use folded cell batteries, I'd recommend using a tiny little bit of E6000 on the inside of the battery tray as when it dries, it thickens up the tray and makes it more form fitting to the smaller folded cell batteries. This battery tray was made for rolled cells in mind so it's just a little bigger. 

Specifications:
Brand Name: Happymodel
Wheelbase: 75mm
Weight: 5.4gram
Max propeller: 40mm