Indoor & Micro Electric Planes Talk about indoor & Micro electric powered flight here

A micro, and sub 250g, DH Venom.

Old 07-07-2021, 03:53 AM
Super Contributor
Thread Starter
quorneng's Avatar
Join Date: Jul 2008
Location: Cheshire, UK
Posts: 2,058
Default A micro, and sub 250g, DH Venom.

This was my first attempt at a small EDF. The fact it came out at less than 250 g (actually 202!) was not a specific aim.
Basically an all sheet skin structure but using 2mm Depron.
Click image for larger version

Name:	13Aug17.JPG
Views:	35
Size:	218.6 KB
ID:	188458
At this size and weight a fully 'built up' structure in 2 mm Depron is plenty strong enough just on its own. No reinforcing is required.
Everything is built up from the EDF. In this case an AEO 40 mm unit. Not very powerful but light and for its size remarkably efficient for an EDF.
Click image for larger version

Name:	Fuselage1.JPG
Views:	31
Size:	185.8 KB
ID:	188459
The thrust tube is literally glued on to the EDF has an 85% FSA nozzle.
Building up the bifurcated inlet to give a smooth air flow is the heart on the build and takes the most time.
Click image for larger version

Name:	Inlets2.JPG
Views:	26
Size:	154.1 KB
ID:	188460
The wing root fairing are added. The ESC is mounted on top of the duct with its heatsink exposed to the inlet air flow.
Click image for larger version

Name:	ESCabove.JPG
Views:	25
Size:	138.3 KB
ID:	188461
The wing is simplicity itself & all 2 mm Depron. Top and bottom one pieceskins drawn over 2 shear webs to give a smooth, near scale, symmetrical section..
Click image for larger version

Name:	ShearWebs.JPG
Views:	23
Size:	183.1 KB
ID:	188462
Tiny 3.7 g aileron servo is glued in before the top skin goes on. With no ribs the extended servo wire is easily run through the wing
Click image for larger version

Name:	Aileron1.JPG
Views:	24
Size:	100.5 KB
ID:	188463
The wings are simply glued on. With UHU POR an good edge to edge join is virtually as strong as the Depron itself.
Even the tail booms are hollow 2 mm Depron structures..
Click image for larger version

Name:	Boom1.JPG
Views:	23
Size:	176.9 KB
ID:	188464
The 3.7 g elevator servo is mounted in the middle of the tail plane.
Click image for larger version

Name:	BoomsTail.JPG
Views:	21
Size:	167.0 KB
ID:	188465
With a short link to the elevator.
Click image for larger version

Name:	ElevLink.JPG
Views:	33
Size:	133.4 KB
ID:	188466
The elevator servo wire runs inside the right tail boom, through the wing root to the rx mounted under the inlet duct.
There is no rudder. It flies bank and yank.
The canopy is the battery hatch to give access to install a big 1400 mAh 2s LiPo battery in the cockpit. With some throttle management flights of 10 minutes are possible.
Kept low for the camera it flies remarkably well but it does need fairly calm conditions.

quorneng is offline  
Old 07-07-2021, 06:43 AM
Community Moderator
Rabbitcreekok's Avatar
Join Date: Aug 2005
Location: McAlester, Oklahoma
Posts: 10,731

Nice job on the build. That is probably the lightest and smallest DF I have ever seen. I bet it does not like much moving air. It could end up in the next county.
Thanks for posting the build and video.
Rabbitcreekok is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.07170 seconds with 10 queries