diff --git a/ROMFS/px4fmu_common/init.d/airframes/3035_viper b/ROMFS/px4fmu_common/init.d/airframes/3035_viper
deleted file mode 100644
index fc8998e1d8..0000000000
--- a/ROMFS/px4fmu_common/init.d/airframes/3035_viper
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/bin/sh
-#
-# @name Viper
-#
-# @type Flying Wing
-# @class Plane
-# @output MAIN1 left aileron
-# @output MAIN2 right aileron
-# @output MAIN4 throttle
-#
-# @output AUX1 feed-through of RC AUX1 channel
-# @output AUX2 feed-through of RC AUX2 channel
-# @output AUX3 feed-through of RC AUX3 channel
-#
-# @maintainer Simon Wilks <simon@uaventure.com>
-#
-# @board px4_fmu-v2 exclude
-# @board bitcraze_crazyflie exclude
-#
-
-. ${R}etc/init.d/rc.fw_defaults
-
-set MIXER Viper
diff --git a/ROMFS/px4fmu_common/init.d/airframes/CMakeLists.txt b/ROMFS/px4fmu_common/init.d/airframes/CMakeLists.txt
index 3dc3d5871d..2a8fcf5491 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/CMakeLists.txt
+++ b/ROMFS/px4fmu_common/init.d/airframes/CMakeLists.txt
@@ -55,7 +55,6 @@ px4_add_romfs_files(
 	3031_phantom
 	3032_skywalker_x5
 	3033_wingwing
-	3035_viper
 	3036_pigeon
 	3037_parrot_disco_mod
 	3100_tbs_caipirinha
diff --git a/ROMFS/px4fmu_common/mixers/CMakeLists.txt b/ROMFS/px4fmu_common/mixers/CMakeLists.txt
index d3a1b8a60d..00903468fc 100644
--- a/ROMFS/px4fmu_common/mixers/CMakeLists.txt
+++ b/ROMFS/px4fmu_common/mixers/CMakeLists.txt
@@ -81,7 +81,6 @@ px4_add_romfs_files(
 	tri_y_yaw-.main.mix
 	uuv_x.main.mix
 	vectored6dof.main.mix
-	Viper.main.mix
 	vtol_AAERT.aux.mix
 	vtol_AAVVT.aux.mix
 	vtol_TTTTAAER.aux.mix
diff --git a/ROMFS/px4fmu_common/mixers/Viper.main.mix b/ROMFS/px4fmu_common/mixers/Viper.main.mix
deleted file mode 100644
index ffdd350243..0000000000
--- a/ROMFS/px4fmu_common/mixers/Viper.main.mix
+++ /dev/null
@@ -1,66 +0,0 @@
-Viper Delta-wing mixer
-=================================
-# @board px4_fmu-v2 exclude
-
-Designed for Viper.
-
-TODO (sjwilks): Add mixers for flaps.
-
-This file defines mixers suitable for controlling a delta wing aircraft using
-PX4FMU. The configuration assumes the elevon servos are connected to PX4FMU
-servo outputs 0 and 1 and the motor speed control to output 3. Output 2 is
-assumed to be unused.
-
-Inputs to the mixer come from channel group 0 (vehicle attitude), channels 0
-(roll), 1 (pitch) and 3 (thrust).
-
-See the README for more information on the scaler format.
-
-Elevon mixers
--------------
-Three scalers total (output, roll, pitch).
-
-On the assumption that the two elevon servos are physically reversed, the pitch
-input is inverted between the two servos.
-
-The scaling factor for roll inputs is adjusted to implement differential travel
-for the elevons.
-
-M: 2
-S: 0 0   7500   7500      0 -10000  10000
-S: 0 1   8000   8000      0 -10000  10000
-
-M: 2
-S: 0 0   7500   7500      0 -10000  10000
-S: 0 1  -8000  -8000      0 -10000  10000
-
-Output 2
---------
-This mixer is empty.
-
-Z:
-
-Motor speed mixer
------------------
-Two scalers total (output, thrust).
-
-This mixer generates a full-range output (-1 to 1) from an input in the (0 - 1)
-range.  Inputs below zero are treated as zero.
-
-M: 1
-S: 0 3      0  20000 -10000 -10000  10000
-
-Inputs to the mixer come from channel group 2 (payload), channels 0
-(bay servo 1), 1 (bay servo 2) and 3 (drop release).
------------------------------------------------------
-
-M: 1
-S: 2 0  10000  10000      0 -10000  10000
-
-M: 1
-S: 2 1  10000  10000      0 -10000  10000
-
-M: 1
-S: 2 2  -8000  -8000      0 -10000  10000
-
-