MRM Spaz 6" Stretch Reaper

By MattS on Jun 23, 2017

3  312  8

Built this as a light weight 6" long range racer - but wait, light weight? Why are you using T-Motor Fat60s??? Well, I did at first - V2 now has an old, unused set of Cobra 2204 1960kv which dropped over 40grams in weight and WAY increased efficiency. Cause that's what I had on hand... Currently the build comes in at 290g with props, but could drop that a little more by dumping the GoPro mount and some other crap. With the new (old) Cobras - I got 15 minutes in flight time using a R-Line 1550 spinning DAL 6040s.
DVR Footage from long maiden flight.


Part List


MRM SPAZ 6" Stretch Reaper 265 FPV Racing Frame – MultiRotorMania (2 builds)

Flight Controller

FLIP 32 - F4 - OMNIBUS V3 PRO (57 builds)


4 x 35A Wraith32 - 32bit BLHELI ESC (10 builds)


4 x Cobra - CM-2204/32 1960kv Motor - CM-2204-32


Ideal Prop 6048 Tri Blade Propeller (Black) (8 builds)


4pcs DAL J6040 Super Durable Propellers (2x CW + 2x CCW) - Black (3 builds)

FPV Camera

RunCam Micro Swift 600TVL 2.1mm IR Blocked 1/3 CCD FPV Camera PAL/NTSC 5.6g (194 builds)

FPV Transmitter

Eachine VTX03 Super Mini 5.8G 72CH 0/25mW/50mw/200mW Switchable FPV Transmitter (428 builds)




Panda Power 1300 5s 95c TOP (3 builds)


Tattu R-Line 1550mAh 95C 4S1P lipo battery pack with XT60 – MultiRotorMania (49 builds)

Power Distribution

RTF V5.0 Power HUB&BEC 5V 12V (30 builds)


DX6 6-Channel DSMX Transmitter Gen 3 with AR6600T Receiver (SPM6755)


FATSHARK HDO (52 builds)

HD Camera

GoPro HERO5 Session (6 builds)
See Site

Video Receiver

ImmersionRC rapidFIRE w/ Analog PLUS Goggle Receiver Module (63 builds)

Radio Module

TBS Crossfire Transmitter

Battery Charger

2 x ISDT Q6 Pro BattGo 300W 14A Battery Balance Charger (45 builds)

Soldering Iron

TS100 Portable Programmable Smart Soldering Iron (61 builds)


Lowepro QuadGuard BP X3 - Drone Backpack for 4 FPV Quad Racing Drones and 15" Laptop w/Exterior Mounts (Black) (18 builds)
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Sign in to comment

Ikuiku   Feb 11, 2019  

Did you find the micro camra mounts on Thingiverse? If so could you please link the file? Your the only one running a micro camera one Rotorbuilds. Thanks!

MattS   Mar 26, 2019 

Le Hyphy Accessories found on #Thingiverse

Querk   Jun 27, 2017  

Which motors are you planning to switch to? Will you run 5s?

Querk   Jun 27, 2017 

nvm I can't read, still wondering about 5s though lol.

MattS   Jun 27, 2017 

LOL - I've done that more times than I care to admit. It's 5S capable, but not with 6" props on the current motors. 5" would be fine with 5S. If I were to swap to lower kv (maybe 2206/7 1800kv), then I'd attempt 5S with 6" props.

MattS   Sep 03, 2017 

Swapped motors to some old Cobra 2204 1960kv - I've seen some other guys test those motors on 5S (using HQ 6030s). Seemed to work ok. Gonna try for a long range flight this week.

Carbon_Rob   Jun 23, 2017  

Nice work. I bet it screams!

MattS   Jun 23, 2017 

I maidened it last night - I've got an ESC acting a little weird (under preforming making it bob/dive under heavy throttle). So I didn't get on it too much. Gonna try to get it figured out soon!

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