Alien 7 4S2P Monster Cruiser

By SPST_V on Sep 10, 2017

7  1,050  7

Rebuilt. https://rotorbuilds.com/build/4904

Fried $30 air shipped motor and $24 ESC at 4S1P test flight.
That hurts. I think I'll tear this thing down T_T

Photos

Discussion

Sign in to comment

FlyingSquirrelFPV   Dec 06, 2017  

How do you like those esc’s? I have some for a 5 inch build.

russm   Sep 13, 2017  

I saw your other build of this. Looks awesome, the mounting you've used looks super clean and tight!
You had quoted 5min on the previous build, how's the 2x1300mah 4s for flight times? I'm trying to decide between 6 or 7 inch cruiser.

SPST_V   Sep 14, 2017 

Unfortunately, I couldn't have proper flight with 4S2P setup yet. I expect 7-10 min cruising.
Because this guy is way too heavy.. auw over 700 is no joke lol I really like this but not a great cruiser.
I recommend forget alien and get a light 6inch 6s setup. That motor should be able to cruise over 10min with that.

Walker   Sep 11, 2017  

I really hope you had a defective ESC, because I'm putting together a 6s 6" with those motors... Was hoping to use 35A ESCs I have laying around, and just cap them all @ 470uF, plus a 1000uF on the power lead. What size capacitors did you use?

Maybe inadequate air flow since the motors are designed to cruise @~60 mph?

SPST_V   Sep 12, 2017 

1000uF x4 for each ESCs. I think it is almost overkill..
It was not a heat issue, these motors stay cool all the time. It felt pretty good.
I started to really like this quad... and a crash and a magic smoke lol..
Very very high quality motor, just a very very bad crash.

Walker   Sep 12, 2017 

Aaaah sorry to hear, but that's a relief for me! When I see the word "fried" I tend to assume heat or current as the sources of the component failure. I can't wait until mine get here. Silverdrone shipping speed is somewhere between glacial and turtles in peanut butter.

SPST_V   Sep 13, 2017 

Yeah you will be pleased. Really liked the prop-holding teeth as well, that thing really bites.
I think shaft bent at the crash and that giant esc threw massive current to spin it right before disarm.

Guides & Reviews

3 2,109  9
Sep 18, 2019

When the FatShark HDOs hit the market in 2018 the FPV community rejoiced for the new Sony OLED displays. While they lacked further upgrades like an updated DVR and power button they were still a market success. With the 2019 announcement of the Orqa FPV.One the community finally had a potential HDO killer on the horizon. With only weeks before the release of the Orqa FPV.One Skyzone came out of left..

Read more
Aug 21, 2019

Want to learn how to build an FPV rig? This guide will walk you through your first FPV freestyle build. These parts were hand-picked to balance cost and maximize performance. The TBS Source One is a popular frame for it's low cost, high quality carbon fiber. It's easy to work with and provides more than enough space for your electronics. We've got a 32bit 4-in-1 ESC to bring you the smoothest flights..

Read more