SkyHook International making progress but strugeling with the financial crisis

© Boeing

The JHL-40 designed by the Canadian Company SkyHook International and built by Boeing is making the news these days. The Calgary Sun has an article titled "Hybrid blimp plans face financial hurdle" the article gives a quick introduction on Skyhook and then talks about the current progress:

Within the next few months, SkyHook and Boeing expect to release further details of the aircraft, dubbed the JHL-40, Jess said, adding that by mid-summer 2009, all systems that go into building the aircraft -- there are about 2,500 of them -- will be selected.

and the financial situation which has become more difficult but not impossible

Shaky financial markets and lenders that have grown more reluctant to finance projects, however, have also made it more difficult for SkyHook to raise the financing needed for the first JHL-40 to be built by late 2012 or early 2013.

"It's progressing. It's just not as easy as it was a year ago," Jess said about the search for financial backers, noting he has received several commitments for funding.

You can read the full article at the Calgary Sun canoe.ca website.
While researching todays post I also found another very interesting article about the Boeing JHL-40 SkyHook in the Shipping Digests Air Cargo Category called "BOEING’S BLIMP" also featuring an Interview with Barry Prentice known from the Airships to the Arctic Symposium that he organizes with his research institute ISO Polar. The article is really worth a read as it goes into great detail what the JHL-40 is how and where it will be built and why it is of great use for the northers regions of Canada.
Also check out our older posts about the SkyHook concept.

• Boeing/Skyhook International JHL-40 heavy lift rotorcraft
• A quadrotor heavy lift airship? Not a new idea!
• Patent for the JHL-40 Skyhook

Links:

• The Calgary Sun - Hybrid blimp plans face financial hurdle
• ShippingDigest - Boeing's Blimp

I want to thank Darrell Campbell from TURTLE AIRSHIPS for the tip on the Calgary Sun article.

Patent for the JHL-40 Skyhook

© Skyhook

Thanks to Cnet i found the Patent that Pete Jess filed, you can read it here at the WIPO website. We have also included the PDF of the International Patent Application below. It's interesting to see the different look of the aircraft in the patent versus the artists impression seen on the Skyhook website. I am sure the final version will again look a little bit different. To read more about the Skyhook concept please read our article on it here as well as our follow up on the heavy lift rotorcraft concept. If you like what you read please spread the word and subscribe to Airshipworld. Tell your friends and colleagues about the Blog and help us to reach an even broader audience.

The full HYBRID LIFT AIR VEHICLE Patent here:

Skyhook Patent - HYBRID LIFT AIR VEHICLE PCT/CA2007/001505 - Upload a Document to Scribd

Read this document on Scribd: Skyhook Patent - HYBRID LIFT AIR VEHICLE PCT/CA2007/001505

A quadrotor heavy lift airship? Not a new idea!

© NASA

After drawing direct parallels between the Boeing /Skyhook JHL-40 and Piasecki PA-97 Helistat in the last post I did a little bit of research and dug out some papers from way back when.
First two papers from the NASA outlining "Vehicle Concepts and Technology
Requirements for Buoyant Heavy-Lift Systems" as well as "Missions and Vehicle Concepts for Modern, Propelled, Lighter-Than-Air Vehicles" both documents are from the early 1980s and contain airship concept like the one in the picture of this blog post. A quad rotor heavy lift airship by Goodyear Aerospace. We also found another two documents in the AIAA Archives that you can download from them. One is called "Effects of atmospheric turbulence on a quadrotor heavy lift airship" the other one "Dynamic stability of a buoyant quad-rotor aircraft" both documents are from 1983. If you like airships and have not yet subscribed to Airshipworld please do so by clicking here it's free and you will get the new posts delivered directly to you. Also if you know of any other documents or projects with heavy lift airships let us know post a comment or send us an email.

Vehicle Concepts and Technology Requirements for Buoyant Heavy-Lift Systems - Upload a Document to Scribd

Read this document on Scribd: Vehicle Concepts and Technology Requirements for Buoyant Heavy-Lift Systems

Missions and Vehicle Concepts for Modern, Propelled, Lighter-Than-Air Vehicles - Upload a Document to Scribd

Read this document on Scribd: Missions and Vehicle Concepts for Modern, Propelled, Lighter-Than-Air Vehicles

Boeing/Skyhook International JHL-40 heavy lift rotorcraft

© Boeing

As nice as it is to write about the Zeppelin and other airship operations it is always nice to be able to report about something refreshingly new. Boeing and the Canadian Company Skyhook International supirsed yesterday with a press release that they are going to develop a heavy lift rotor craft. The concept called JHL-40 (Jess Heavy Lifter) named after the SkyHook president and COO Pete Jess. The 40 stands for a 40-ton (88 000 lb) lifting capability. The airship will have an envelope that will make it neutrally buoyant and 4 rotors that will be used to lift the cargo. Here is the full press release:

ST. LOUIS, July 08, 2008 -- The Boeing Company [NYSE: BA] and SkyHook International Inc. today announced a teaming agreement to develop the JHL-40 (Jess Heavy Lifter), a new commercial heavy-lift rotorcraft designed to address the limitations and expense of transporting equipment and materials in remote regions. Boeing has received the first increment of a multiyear contract from SkyHook to develop the new aircraft.

"SkyHook secured the patent for this neutrally buoyant aircraft and approached Boeing with the opportunity to develop and build the system," said Pat Donnelly, director of Advanced Rotorcraft Systems for Boeing. "We conducted a feasibility study and decided this opportunity is a perfect fit for Advanced Systems' technical capabilities."

The neutrally buoyant feature allows SkyHook to safely carry payloads unmatched by any rotorcraft in existence today. The helium-filled envelope is sized to support the weight of the vehicle and fuel without payload. With the empty weight of the aircraft supported by the envelope, the lift generated by four rotors is dedicated solely to lifting the payload, leaving the aircraft neutrally buoyant.

The SkyHook JHL-40 aircraft will be capable of lifting a 40-ton sling load and transporting it up to 200 miles without refueling in harsh environments such as the Canadian Arctic and Alaska. Currently, conventional land and water transportation methods in these undeveloped regions are inadequate, unreliable and costly. With its lifting capacity and range, the SkyHook JHL-40 aircraft changes that for a variety of industries around the world.

"There is a definite need for this technology. The list of customers waiting for SkyHook's services is extensive, and they enthusiastically support the development of the JHL-40," said Pete Jess, SkyHook president and chief operating officer. "Companies have suggested this new technology will enable them to modify their current operational strategy and begin working much sooner on projects that were thought to be 15 to 20 years away. This Boeing-SkyHook technology represents an environmentally acceptable solution for these companies' heavy-lift short-haul challenges, and it's the only way many projects will be able to progress economically."

The JHL-40 is environmentally acceptable because it mitigates the impact of building new roadways in remote areas, and Skyhook is expected to reduce the carbon footprint of the industrial projects it supports.

Boeing is designing and will fabricate two production prototypes of the JHL-40 at its Rotorcraft Systems facility in Ridley Park, Pa. Skyhook will own, maintain, operate and service all JHL-40 aircraft for customers worldwide. The new aircraft will enter commercial service as soon as it is certified by Transport Canada and the U.S. Federal Aviation Administration.

SkyHook International Inc. is a privately owned company located in Calgary, Alberta, Canada. SkyHook principals have been focused on providing solutions to logistical challenges in remote regions. They have a 30-year history in remote area operations and logistics in support of exploration, research and development in isolated regions of the world. For more information, visit www.skyhookinternational.com.
A unit of The Boeing Company, Boeing Integrated Defense Systems is one of the world's largest space and defense businesses specializing in innovative and capabilities-driven customer solutions. Headquartered in St. Louis, Boeing Integrated Defense Systems is a $32.1 billion business with 71,000 employees worldwide.

© Piasecki

Everyone with just a little experience in airships will be reminded of the Piasecki PA-97 Helistat which looks quite similar to the new JHL-40 project. This is also what the National Post pointed out in their article about this new aircraft. Unfortunately Piaseckis Helistat built in the 1980s under a US Navy contract was probably to early for it's time having 4 real Helicopter attached to an old Navy blimp envelope that was of no use anymore. The helicopters were controlled by a single pilot sitting in one of the helicopters controlling the others through a cable system. Check out the Wikipedia article on the Piasecki PA-97 Helistat the article also links to a video that shows some footage of the final catastrophic flight. Pessimists would proably argue because it didn't work back then it wont work today. But one has to realize the differences. The PA-97 was pieced together out of old pieces that were reused. It wasn't an aircraft designed from the ground up, without any electronic stabilization or computer assistance. Now over 20 years later the game has changed and if Boeing and Skyhook are developing this craft from the ground up I have no doubt that they will be successful. You should also check out the Skyhook International Website which has lots of pictures and additional information. I assume that the site will grow with time.

© Boeing

But let's have a closer look at the press release and read between the lines. The unit at Boeing that will work on this is the Integrated Defense Systems and in there the Rotorcraft Systems department. Looking at the aircrafts available one of them sticks out. The V-22 Osprey a tilt rotor aircraft that is quite unique in the world. Also read the Wikipedia article on the Osprey. Now why look at the Osprey and not at the Chinook? The Osprey can carry up to 15,000 lbs (6,147 kg) where as the Chinook can carry 26,000 lbs (11,794 kg). Well we now have to look for another clue in the press release. The acronym JHL-40. Sure the press release talks about "Jess heavy Lift" but is this really the whole truth? While reading an article about the Skyhook on gizmag.com I stumbled across this article that talks about a Quad TiltRotor (QTR) aircraft for the Joint Heavy Lift Programm of the US Army and there they are again our three letters JHL (Joint Heavy Lift) or (Jess Heavy Lift). According to Global Security.org

The Joint Vertical Aircraft Task Force is developing requirements to meet Army and Navy needs for a heavy lift transport rotorcraft that is expected to include, at a minimum, a 20-ton payload lift capability. The Army hasn’t settled on what kind of aircraft it envisions: it could be a quad tiltrotor, conventional helicopter, or a hybrid.

The last word in this introduction is key "hybrid". So an airship, quad tiltrotor hybrid ? It's possible. If you look at the first info of a QTR(quad tilt rotor) from Being it's probably this pressrelease where Boeing IDS is awarded the contract the QTR as part of the JHL program. And now we come full circle back to the Osprey since the QTR is a evolution pretty much using the technology of the Osprey. So 4 instead of 2 rotors let's say that doubles the lift then we get from 2 x 6,147 kg = 12294 kg or 12 tons or if we size it up and use the Chinook figures 2 x 11,794 kg = 23,588 or 23 tons which is above the limit of the 20-ton payload lift capability mentioned in the JHL program. But all these numbers are when using conventional technology. An Osprey actually has maximum vertical takeoff weight of 23,859 kg = 23 tons make it 4 rotors (2 Ospreys) and you have 40 tons. If you want to have those 40 tons as useful payload all you need to do is to neutralize the empty takeoff weight of the "2 Ospreys" which is roughly 20 tons. Considering the Zeppelin NT 07 has enough Helium to produce a raw lift of 7 tons without it's structure an airship envelope a bit bigger than twice the size should do it. So there you have it that's how you get to the JHL-40 it's all possible you just have to do the math. Of course this was really naive math and I am happy to get input from the professionals in the industry if they could chime in in the Forum or the comments on the Blog I am sure I have made mistakes or made incorrect assumptions or is it all sound. Send me your feedback positive as well as negative.

Thanks to hildy from the luftschiff_abt who pointed this story out first. Also thanks to Dan Nachbar for the thought on the Osprey and lvlta_designer from the Yahoo AirshipList for pointing me to the gizmag.com article that led me to the JHL stuff.