Under-carriage Battery Bay For Diatone FPV250 Model

[TomcatFLYER]

Hi all,

Recently I designed a under-carriage battery bay for the Diatone fpv250, the initial design intent was to:

1) Maximum Mountable Battery Capacity to 2500mah (3cell) ---- Increases Endurance with larger battery (tested on non-fpv FPV250 airframe)
2) Free up Real Estate in the lower and upper deck of the extension (Roll) cages mounted onto the airframe (By mounting the batter below)
3) Bring down the overall Z(vertical)- C.G of the aircraft for more stability
4) Improve power line routing by routing the powerlines below the propeller planes to prevent the prop from hitting the powerlines.

The Tray is mounted onto the Diatone FPV Frame by the other set of holes near the set of holes used to mount the upper cage upgrade via M3 screws. (Some Diatone FPV250 models may not have it) and 3m double sided tape on the flat bottom of the airframe.

The battery is mounted by velcro stickers (on the battery and in the bay) and finally secured by a velcro strap running through the bay and over the battery.

I have flight tested the battery bay for 6 flights with no issues as off now.

The cons of mount:
1) blocks off the servo-gimbal mount holes on the airframe
2) additional of 30-40 Grams of weight besides battery
a) Bay 15 grams
b) stand offs 5 grams
c) screws, mounting tape and Velcro 20 grams++







I'm thinking of mass printing these on my printer and selling them at 12.50 a piece to raise some money to buy fpv gear.

Anyone interested?

[waycool]

Cool idea... but is there any noticeable difference in flight because of the lowered CG?

[TomcatFLYER]

Hi,

Many thanks for the compliment... It feels a little more stable than top mounted, using a p,I,d of 2.6 ,000.3,0 for roll and pitch on the naze32.

I am not sure if it's a placebo effect though... Hahahhaa