Lighter than Air Craft

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Lighter than Air Craft

Post by Pokermind on Wed Oct 07, 2015 4:26 pm

Scale drawing based on Taylor Anderson's drawing of a Grik Zep, and below a captured Grik Zep in US Navy Clan colors:

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Re: Lighter than Air Craft

Post by Dilandu on Wed Oct 07, 2015 5:10 pm

Hm. Look good!

My opinion:

- The ship's diameter must be smaller - close to the early zeppelins, with their long, tubular hulls
- The cabins should be connected to the fully enclosed keel passageway, like on this:

https://upload.wikimedia.org/wikipedia/commons/1/11/Zeppelin_III_in_flight.jpg

-And the cabins should be smaller
-The boardside engines should have access means to control and repairs in flight. They aren't realiable, after all. Look at this:

http://www.gutenberg.org/files/32570/32570-h/images/plate11a.jpg

every motor is in his own cabin, connected to the keel.
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Re: Lighter than Air Craft

Post by Pokermind on Wed Oct 07, 2015 6:01 pm

Second link did not work got
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Re: Lighter than Air Craft

Post by Dilandu on Wed Oct 07, 2015 6:10 pm

Hm.



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Re: Lighter than Air Craft

Post by Pokermind on Wed Feb 10, 2016 1:42 pm

Lighter than air carriers USN  

USS Akron  Specifications (As built)
Air displacement: 7,401,260 ft³ (209,580.3 m³)
Dimensions: length (oa), 785'; hull diameter, 132.9'; total height, 146.5'  /  239.3 x 40.5 x 44.7 meters
Gas volume (nominal): 6,500,000 ft³ (184,059.5 m³) of helium, 95% inflated; 12 gas cells
Armament: Eight .30-cal machine guns in nose, dorsal, ventral, and tail positions. Three Curtiss F9C Sparrowhawk fighter aircraft stowed in an internal hangar.
Power plant: Eight Maybach VL-2 12-cyl water-cooled inline engines (560 hp each), driving two-bladed fixed-pitch, rotable wooden propellers.
Speed: 69 knots (max); 55 knots (cruising)
Ceiling: 26,000 feet (~7,925 meters)
Cruising range: 5,940 nautical miles @ cruising speed
Useful lift: 152,644 lbs. (69,238.2 kg)
Crew: 60 (flight crew)

http://www.navsource.org/archives/02/99/02990419.jpg

USS Macon Specifications (As built)
Air displacement: 7,401,260 ft³ (209,580.3 m³)
Dimensions: length (oa), 785'; hull diameter, 132.9'; total height, 146.5'  /  239.3 x 40.5 x 44.7 meters
Gas volume (nominal): 6,500,000 ft³ (184,059.5 m³) of helium, 95% inflated; 12 gas cells
Armament: Eight .30-cal machine guns in nose, dorsal, ventral, and tail positions. Five Curtiss F9C Sparrowhawk fighter aircraft stowed in an internal hangar.
Power plant: Eight Maybach VL-2 12-cyl water-cooled inline engines (560 hp each), driving three-bladed fixed-pitch, rotable metal propellers.
Speed: 75.6 knots (max); 55 knots (cruising)
Ceiling: 26,000 feet (~7,925 meters)
Cruising range: 5,940 nautical miles @ cruising speed
Useful lift: 160,644 lbs. (73,020 kg)
Crew: 60 (flight crew)

http://www.navsource.org/archives/02/99/02990501.jpg

Plan of aircraft used:

http://www.navsource.org/archives/02/99/02990425.jpg

Source and more photos Click on individual craft under Flying Aircraft Carriers http://www.navsource.org/archives/02/99/0299idx.htm.
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Re: Lighter than Air Craft

Post by donaldjj on Mon Jun 06, 2016 12:02 am

Does the useful lift include the crew and fuel or is it all cargo?  What is the altitude that the useful range was calculated. At what altitude is it 95% inflated or is this at the ground level?
as hydrogen and helium both have almost exactly the same lifting ability which is slightly more than 2kg per cubic meter the 184000 cubic meter and that much hydrogen can lift then the actual weight of the Macon must have been around 295000 kg.  
This means that they can move about 36.5 tonnes at around 50 mph for roughly 3000 miles.  this could be very helpful in moving  small loads of arms and weapons as long as the enemy can not bring it down.

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Re: Lighter than Air Craft

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