Feeds

LOHAN in FIGHT to DEATH with brace of cantankerous canards

Plucky Playmonaut back in cockpit after much servo-related duckery

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

Our plucky Playmonaut is back in his seat in the Vulture 2 spaceplane following the recent servo meltdown which had prompted his rapid exit from the vehicle.

The miniature emergency required a servo swap-out, and while we were about it, we decided to upgrade the linkages to the canards, and bolt the cantankerous forewings to the aircraft once and for all.

We say cantankerous, because they've proved a little more bothersome than we anticipated. Here are said control surfaces straight out of the box, as they arrived from the 3D printers...

The canards as they arrived from the 3D printers

...and here's how they relate to the Vulture 2's nose section, according to the CAD drawings:

CAD plan view of the Vulture's nose and canards

CAD axonometric view of the Vulture's nose and canards

Naturally, it all looked good on paper, and indeed after a quick paintjob...

The painted Vulture 2 canards

...although nothing on the Low Orbit Helium Assisted Navigator (LOHAN) project ever runs according to plan.

The canards connect to the spaceplane via 6mm threaded rod glued into the canard (visible in above snap), and which pass through a nylon bush into the plane's interior:

The side of the fuselage showing the canard connecting rod bush

The corrugated surface here is a bonus, because it reduces friction between plane and canard. However, when we bolted the canard on, too little torque on the bolt allowed the forewing to rattle about, while too much caused the damn thing to jam.

Cue a delivery of specialist adhesive stuff, viz: Loctite 770 primer and Loctite 406:

Bottles of Loctite 770 and 406, plus a sheet of Teflon

This potent pair of chemicals is used for bonding troublesome plastics and the like, including polytetrafluoroethylene (PTFE), which is how we decided to resolve the chafing canard issue.

So, take one sheet of 0.5mm Teflon, glue to canard and lovingly trim, and Bob's your uncle:

Three photos showing Teflon glued to one of the canards

Suffice it to say, this did the trick, allowing us to bolt on the canards tightly enough to prevent wobble, without putting undue strain on the servos.

Beginner's guide to SSL certificates

Next page: Sticky delights

More from The Register

next story
Bond villains lament as Wicked Lasers withdraw death ray
Want to arm that shark? Better get in there quick
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
Antarctic ice THICKER than first feared – penguin-bot boffins
Robo-sub scans freezing waters, rocks warming models
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
Reuse the Force, Luke: SpaceX's Elon Musk reveals X-WING designs
And a floating carrier for recyclable rockets
The next big thing in medical science: POO TRANSPLANTS
Your brother's gonna die, kid, unless we can give him your, well ...
NASA launches new climate model at SC14
75 days of supercomputing later ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
Your PHONE is slowly KILLING YOU
Doctors find new Digitillnesses - 'text neck' and 'telepressure'
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
Driving business with continuous operational intelligence
Introducing an innovative approach offered by ExtraHop for producing continuous operational intelligence.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?