LOHAN team buried under ballockets

Click here for a shedload of Reg reader spaceplane launch concepts

New hybrid storage solutions

DMoz liked the idea of a pivoted launch rig...

A simple pivoted launch pole carries the Vulture 2 away from the balloon

...and here's Rob's variation on the theme:

Another launch pole, attached to the top of the balloon

He explains: "Rather than using a counter weight, it just uses the width of the balloon to get your separation. It has the neat property that it throws away your assumption that the balloon will float upright.

"It does require a top attachment to the balloon. I'm not sure if you can glue an attachment to the latex, but if not, a lightweight net around the balloon would do the job of providing a top attachment point.

"You'd have to experiment a bit with the geometry once you knew the weight of the payload and craft, but by adjusting lengths A, B, C, D and the position of attachment point E, you can achieve pretty much any launch angle with minimal additional weight compared to attaching LOHAN to the payload directly."

Gary Keall, meanwhile, suggests putting the launch platform "on the end of a long piece of (say kite) string to clear the balloon (I'll claim the original suggestion of that in the comments) – I'd say 50 if not 100m if the balloon expands to 10s of m across".

The Vulture 2 launched along a fibreglass pole

He continues: "My launch platform would simply be a long lightweight carbon fibre pole (fishing pole?) – about 3-4m I suggest. This is suspended from each end by a string yoke in an asymmetric 'Y' shape to hold the pole at the required launch angle, as shown. I don't think the launch needs to be that near vertical – the ~30° angle show still has plenty of vertical component, and any more vertical and the initial roll orientation of the aircraft will be less defined. The exact angle of dangle depends on where the centre of gravity of the assembly is – I've drawn it assuming most of the mass is in the aircraft at the bottom end.

"As I've drawn it, I envisaged the aircraft attached to a lightweight launch shuttle which slides up the pole on a pair of ring guides or something similar. The aircraft is released from the shuttle by a lever trigger hitting a trip 'noggin' at the end of the pole. This yanks a piece of string which pulls release pins or something like that."

While Gary's design features swing damping vanes, as you can see, Angus Wood suggested using the wind itself to control the relative positions of balloon and payload. He says: "The basic idea is to take advantage of the high wind conditions to create a situation where one is (almost) guaranteed to be able to know where the balloon is in relation to the launcher."

A drag system keeps the payload behind the balloon and orientates the Vulture 2

He continues: "Given that the balloon will have the highest surface area it will catch the most wind and so will always be 'ahead' of the payload and LOHAN. The next step is to orient the rotation of payload in respect to the balloon. This is done by attaching a rudder-like flap of cloth to some aluminium spars which are in turn rigidly attached to the launcher.

"The net effect should be to always aim the LOHAN launcher in to the wind (which is beneficial) and guaranteeing that it will always be pointed at maximal angle away from the helium balloon."

Providing a secure and efficient Helpdesk

More from The Register

next story
Boffins: Behold the SILICON CHEAPNESS of our tiny, radio-signal-munching IoT sensor
Single ant-sized Stanford chip combines radio, 'puter, antenna
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
Drones swarm over bearded Brit billionaire's island getaway
Just to take lovely pictures though, after Richard Branson invests in 3D Robotics
Chelyabinsk-sized SURPRISE asteroid to skim Earth, satnav birds
Space rock appears out of nowhere, buzzes planet on Sunday
California blue whale numbers soar to historical levels, say boffins
Still far too many of them being struck by US ships, mind
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
'Duck face' selfie in SPAAAACE: Rosetta's snap with bird comet
Probe prepares to make first landing on fast-moving rock
prev story


Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.