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Sky Hopper News

Heading towards first flight

The Sky Hopper team has, as previously stated, been very quiet in its communications about its activity. To a great extent, this has been deliberate to retain confidentiality about our progress. Like every business, we are having to struggle with difficulties in supply chains, especially in electronic components.

However, we can reveal that as of mid-June we are finishing off our Operational Safety Case submission to be allowed to test fly our platform.

We are presently engaged in testing our flight control firmware in powered ground tests and on scale model versions of the Sky Hopper platform. Inevitably, these tests involve multiple small steps that take time; but things are going well. We believe that our design will offer excellent controllability in hover and look forward to testing its cruise capabilities when we obtain the freedom to fly.

Our team has expanded, new skills are involved, and we are gaining experience in design, fabrication and now (early) operations. As one of our founders said, “this is a project that involves innovation at every step”.

We are presently targeting tests of model no: ACD165-004, with ACD165-005 on the stocks as an upgrade feeder platform; that is, once we take-off, we can accelerate development rapidly across our development programme.

We hope to reveal all within the next few months.

An integrated push

Like everyone else across the UK, the Sky Hopper project has had to deal with Covid. For us, during our design and early build this was in fact not too difficult, but as we moved into the full platform integration, where the team has to work together. Things became more complicated; we have a dispersed team across multiple disciplines.

However, we have persevered, and in some senses the extended time period of the build has helped us improve our outcomes. We now have two production versions of the Sky Hopper platform in the final stages of their build. The first ACD165-001 will, we hope, be allowed to fly this Spring 2022. The second ACD165-002 will follow on. The latter model is more easily manufacturable, and will be lighter and more powerful. As always, step by step innovation is our methodology.

The rigours of what we are trying to do, are matched by the rigours of the regulatory eco-system within which we have to work. One reason why we have been so quiet over the past six months is that our entire design and fabrication process has had to be codified into an overall Safety Management System. That in turn informs the approach we will be making shortly to the CAA to make our Operational Safety Case. Obviously, our early need is for some highly codified and detailed test flights.

Building towards first flight

The SkyHopper team has expanded and we are now in a new fabrication unit, beginning our first flight demonstrator build. We hope that, despite some restrictions on working closely, we will reach this important goal by the Spring of 2021.

With our new tooling and additional talent staff, we are also able to look forwards towards batch production in the future. However, our present goal as we complete this fight build is to begin collecting power system telemetry as soon as possible to prove our aerodynamic model and other performance data.

Inevitably, this next stage involves integrating composites, alloys, flight electrics and electronics and our flight control system. We have all the sub-systems ready in the wings for a final integration.

Work will commence on our operational safety case shortly and we will be working on this with the CAA to obtain our test flight permissions.

Winter cycle update

The Sky Hopper team has continued work (rather slowly) through Covid 2019. On the engineering side, we are finalising our structural analysis for our upgraded airframe and composite sub-assemblies. On the electrical and electronics side we are integrating our CANBUS ancillary control systems, preparing for further integration into flight control systems.

Progress is steady, with some uncertainties as to how we will work as an integrated team on final assembly ready for flight trials, but the team is positive and ready to work things out. The mood is positive.

Our next stage will be to re-affirm our intentions with the regulators; this is not a one-time clearance task, but a shared relationship between ourselves, our collaborators and the authorities.

We are inevitably having to retain a certain amount of confidentiality about our progress and plans, hence this rather generalised update.

Routing and regulation

We are being asked about two exercises taking place in the UK. One involves a small Thales drone operating from Oban to Mull carrying medical supplies, the second a larger drone being flown in Hampshire from the mainland to the Isle of Wight.

These are some early forays by the industry into how best to route drone flights within UK airspace. We are pleased that they are taking place; they clear the way for us to use our platform in due course.

As for us, our second demonstrator platform build is nearing completion and we are due to install our integrated software soon. We have managed to move onward throughout the pandemic, but obviously action has been slowed down. By re-ordering tasks and splitting up our team, however, we have made good progress.

We are now drawing up operational procedures for our early test flights. As of today, we do not know when these will be, or how we will be able to operate with mandatory social distancing. But preparation is everything in these first forays into actual operations so we are essentially keeping calm and carrying on as best.

The Sky Hopper build continues…

The Sky Hopper build is continuing. There will be an inevitable slowing down during Spring 2020 as we have to look after our designers and engineers given the lock-down over the Corona Virus.

However, we are presently engaged in the wiring loom of the vehicle, for power, sensors and data. This will continue. There are also refinements and innovations being adopted within the new build.

At this stage, we are also having to keep what we are doing relatively confidential as we still believe that we have a competitive advantage in our VTOL/cruise combination flight profile and mid-mass payload carrying capability.

We are continuing our outreach efforts within both the UK and overseas; designing projected mission tasks. Do please get in touch with us if you think you could collaborate with us.

Do drones need a “front door”?

We hear a lot about “back doors” in communications firmware; entry points for elicit or state-sponsored access to data that should normally be private.  This debate is also relevant to the world of both low mass “drones” and larger UAV systems.

The recent attacks on oil assets in Saudi Arabia by unknown players suggests that the need to “do something” has become more acute. Commentators are recognising that there is a “dark side” to the future here.

None of this is news to the authorities; the CAA and FAA have been enlightened but increasingly cautious about what open-source digital location software and autonomous mission capabilities acting together could lead to when used in aerial platforms in the hands of bad people.

Those in the Sky Hopper project, where we are building our electronics demonstrator and enabling its firmware, are acutely conscious of our responsibilities if we bring higher mass capabilities to market.  We can do a lot of damage.

We think there is a great opportunity here for UK industry to take a lead. We have the institutions that can bring together good light touch regulation – hopefully through self-regulation – that could be exported worldwide as best practice.

You can see a longer version of this post on Linkedin here

Platform update: Our electrical and electronics demonstrator build continues. A manufacturing resource planning exercise is being performed in tandem as we build our CAD model for multiple production.  The dark, windy and wet winter months of Scotland are a good time to buckle down and fabricate our sub-systems … that’s what we are doing every day …

To drone or not to drone

As the UAV / drone industry develops; there is a distinct bifurcation underway that has specific consequences for the way our industry develops. This is not unexpected; industries thrive when separate niches are discovered, each with its own strategy for commercial success.

However, you have to wonder if the term “drone” is not helping understanding of this quite normal industrial evolutions. “Drone” suggests a repeated and continuous, low-complexity, mission. (In literal terms of course it refers to a continuous humming sound.)

In reality, such mission profiles are going to become less common as UAVs get smarter. The platform may well emit a continuous sound while on station; but it may be carrying a high resolution multi-spectral camera, some data processing intelligence for situational analysis and a fast downlink to stream interpreted data back to a mission ground controller who is adapting ground task management on the basis of that data feed.

This is a long way from a “drone” repeating a pre-coded point A to point B transit route to deliver, say, loose tea from a plantation to a bagging factory along an aerial conveyor belt.

To me, that leads to a better nomenclature that adopts a specific distinction between an unmanned aerial drone (UAD) and an unmanned aerial system (UAS). Importantly for the development of the sector, the business models of UADs will be quite different from UASs.

A UAD model will involve multiple high frequency tightly-controlled missions.  The value added of those will be relatively low, but the costs of system control are (hopefully) low.  Delivering bloods and bandages, documents and diapers in time of near immediate need is the arena here.

As such UAD systems are likely to be limited low cost mission providers; platform tech will have to be correspondingly simple; aerial autonomy is likely to be minimal with strong ground control being used instead. The cost of down-time due to non-serviceability of the aerial platform will be low.

A UAS model will involve pre-flight analysis, or be based on event pre-analysis preparations – as in media uses and emergency service support.  It will have to offer immediate added value – required by the commissioning user with speed and instantaneity of data.  What economists call the opportunity cost of not providing the task will tend to be high.

As such UAS systems will need to be supported and serviced to allow for high availability; within a flexible mission delivery process. These system overheads mean providers will have to ask for high per mission prices – on the basis of the high value provided.

Throwing such highly disparate uses of “drones” into one box does not help our industry develop. It’s always a good idea to sell a product or service in a way that the product, its price and the way it is delivered is integrated well.

We need to improve on the terms we use to describe our offer – after all, it’s that description that thrills our customers with what we can do for them. As suppliers we need to discover what adds real value, and through what mission profile and opportunity cost.

In the end, it is only that desire and the purchase order action that follows that will make our industry continue its beneficial development. Early adopters will be re-investing profits for many years before the brands, sub-sectors and customer expectations are discovered that match prices and service.  But once discovered there are undoubtedly strong revenue streams for the risk-takers who design the right platform.  Sky Hopper intends to find those revenue streams.  Have you considered investing in us?

Sky Hopper Electrical Demonstrator

Sky Hopper now has funding available to begin work on an electrical demonstrator build.  This will begin within the next few weeks.

This second demonstrator will bring together three separate elements:

a) The updated fabrication process and techniques refined from 2018’s structural engineering demonstrator build; now captured within our CATIA CAD model.

b) The power train cabling, battery installation and motor positioning.

c) The control electronics package for power train and flight management.

Our general design plan using two main fans and a tail control fan is unchanged; our focus will be on gyroscopic force damping, power cycle vibrations and other aspects of the mission derived energy profiles that our control systems have to manage.  Inevitably, we have to retain confidentiality on the design details; but our intent is to see if we can work up to first tethered trials of the vehicle platform by the end of 2019.

We are still seeking further pledge investors to allow us to extend and increase our ambitions.  Please consider offering us a pledge in return for an equity state in our venture.

Multi-uses needs multi-capable platforms

As we prepare for our mid-2019 design and build effort (there will be news about this soon, released here) we are watching the UAV industry emerge into a first generation stage of some maturity.

Aerial survey markets using “drones” are reported to have reached $12 billion last year in North America.  A lot of this will be property videos, but crop surveys, infrastructure inspections and other industrial uses are catching up fast.

What is even more interesting to the Sky Hopper team is that as uses multiply, inevitably the capability of the carry platform has to increase.  Examples we have read about this week alone are tree-planting drones, drones helping to fight the Notre Dame fire and even a call for a drone that could lift a fire hose.  (We’re wondering how easy that might be if the hose was turned on having seen four firefighters struggling to haul one pumping water across the paving stones of the Isle de France).

But the point is there, multiple capabilities are needed. And that means designing an adaptable, flexible use carry-platform suitable for multiple payloads. This is exactly what we have been concentrating on recently in the design of our underslung cargo module.  Sky Hopper can carry cameras, detectors and sensors, field equipment as well as parts and tools; we now have design conformations of our cargo module that will suit all these uses.

This is important, as an industrial device we will be more expensive than standard drone copters, but if the industry is going to mature further to really earn revenues across multiple uses it has to be multiply capable. That’s our opportunity.

PS: Our investor hunt is moving on and we are making headway.  Please consider investing in our vehicle. We are offering equity in what we believe is becoming an increasingly valuable asset.  The minimum is £250, and you can make a pledge at this stage with no obligation.  Eventually we will be closed to new pledges so this offer has a limited duration.