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O2 Cylinder Sizes - What are people using these days?
I'm looking to develop a standard O2 cylinder installation for the
HP-24 sailplane kit, and I'm curious what size cylinders people generally have installed these days. These days a lot of folks seem to be using EDS systems which seem to offer very good efficiency at turning pressurized gas into blood oxygen. So less pressurized gas is needed than back in the old days when we were all using surplus A8A regulators. This webpage lists what seem to be the the standard O2 cylinder sizes these days: http://www.mhoxygen.com/index.php?op...t emid=50#pdf The cylinder sizes I generally see referred to in forums like these are these medical sizes: D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K. http://www.hpaircraft.com/hp-24 |
#2
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 11:36*am, Bob Kuykendall wrote:
I'm looking to develop a standard O2 cylinder installation for the HP-24 sailplane kit, and I'm curious what size cylinders people generally have installed these days. These days a lot of folks seem to be using EDS systems which seem to offer very good efficiency at turning *pressurized gas into blood oxygen. So less pressurized gas is needed than back in the old days when we were all using surplus A8A regulators. This webpage lists what seem to be the the standard O2 cylinder sizes these days: http://www.mhoxygen.com/index.php?op...ew=article&id=... The cylinder sizes I generally see referred to in forums like these are these medical sizes: D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K.http://www.hpaircraft.com/hp-24 But the great thing about a bigger bottle is that you get decent capacity even when the filling station is a little low. Always seems to happen at some point at wave camp. Very happy that my '20 takes an E-size bottle, even if it is the old, awkward, heavy steel E-size. Best -- imo -- would be provision to install either D or E size aluminum bottles. These are common and inexpensive. Evan Ludeman / T8 |
#3
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 9:36*am, Bob Kuykendall wrote:
I'm looking to develop a standard O2 cylinder installation for the HP-24 sailplane kit, and I'm curious what size cylinders people generally have installed these days. These days a lot of folks seem to be using EDS systems which seem to offer very good efficiency at turning *pressurized gas into blood oxygen. So less pressurized gas is needed than back in the old days when we were all using surplus A8A regulators. This webpage lists what seem to be the the standard O2 cylinder sizes these days: http://www.mhoxygen.com/index.php?op...ew=article&id=... The cylinder sizes I generally see referred to in forums like these are these medical sizes: D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K.http://www.hpaircraft.com/hp-24 JD size is ideal. Good flight times even with a constant flow oxysaver cannula systems. |
#4
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 9:36*am, Bob Kuykendall wrote:
I'm looking to develop a standard O2 cylinder installation for the HP-24 sailplane kit, and I'm curious what size cylinders people generally have installed these days. These days a lot of folks seem to be using EDS systems which seem to offer very good efficiency at turning *pressurized gas into blood oxygen. So less pressurized gas is needed than back in the old days when we were all using surplus A8A regulators. This webpage lists what seem to be the the standard O2 cylinder sizes these days: http://www.mhoxygen.com/index.php?op...ew=article&id=... The cylinder sizes I generally see referred to in forums like these are these medical sizes: D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K.http://www.hpaircraft.com/hp-24 I just reached across my desk for just such an O2 bottle. It's a AL-647 from MH. For me, it supplies about 12 hours of O2 when flying in the 14k' to 18k' range. The label says it holds 22.8 Cu. Ft. @ 2216 PSI. The dimensions appear to be what you list as a JD-Size. While the HP-24 can have any mounting you choose, existing gliders are usually designed for European bottles. MH bottles don't have a 'neck' for easy mounting like the European style bottles. A suitable neck can be fabricated from a male & female CG540 fittings and a short brass pipe. I turned a sleeve of HMWPE to slip over the pipe to increase the diameter so it fits the mounting clamp in the glider. FWIW, I've wondered if mounting long, small diameter "pencil" bottles in the wing roots might be a solution to keep the fuselage less cluttered. |
#5
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 8:36*am, Bob Kuykendall wrote:
CFI-480 http://www.flickr.com/photos/7288548...7629247935565/ Robert D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K.http://www.hpaircraft.com/hp-24 |
#6
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 10:58*am, RobKol wrote:
On Jun 26, 8:36*am, Bob Kuykendall wrote: CFI-480http://www.flickr.com/photos/72885489@N00/2231164294/in/set-721576292... Robert Nice mods on the Jantar! Let me know when you're ready to build a glider from scratch. Thanks, (the other) Bob K. |
#7
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O2 Cylinder Sizes - What are people using these days?
Thank you all for your information and suggestions!
Bob K. |
#8
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 5:32*pm, Bob Kuykendall wrote:
Thank you all for your information and suggestions! Bob K. The JD or E if you have space. I have a D and it is a little small. Loved the JD in my last plane. You can get any of these for about $100 throught the EMT supply market with both valve types. |
#9
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 8:36*am, Bob Kuykendall wrote:
I'm looking to develop a standard O2 cylinder installation for the HP-24 sailplane kit, and I'm curious what size cylinders people generally have installed these days. These days a lot of folks seem to be using EDS systems which seem to offer very good efficiency at turning *pressurized gas into blood oxygen. So less pressurized gas is needed than back in the old days when we were all using surplus A8A regulators. This webpage lists what seem to be the the standard O2 cylinder sizes these days: http://www.mhoxygen.com/index.php?op...ew=article&id=... The cylinder sizes I generally see referred to in forums like these are these medical sizes: D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K.http://www.hpaircraft.com/hp-24 EDS system. AL415 bottle secured to the forward lift tube. Brad Tetra-15 |
#10
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O2 Cylinder Sizes - What are people using these days?
On Jun 26, 5:15*pm, Brad wrote:
On Jun 26, 8:36*am, Bob Kuykendall wrote: I'm looking to develop a standard O2 cylinder installation for the HP-24 sailplane kit, and I'm curious what size cylinders people generally have installed these days. These days a lot of folks seem to be using EDS systems which seem to offer very good efficiency at turning *pressurized gas into blood oxygen. So less pressurized gas is needed than back in the old days when we were all using surplus A8A regulators. This webpage lists what seem to be the the standard O2 cylinder sizes these days: http://www.mhoxygen.com/index.php?op...ew=article&id=... The cylinder sizes I generally see referred to in forums like these are these medical sizes: D-size: 4.4 in/11.1 cm diameter, 18.7 in/47.4 cm length, 14.7 ft^3 volume JD-size: 5.3 in/13.3 cm diameter, 18.1 in/46.0 cm length, 22.8 ft^3 volume E-size: 4.4 in/11.1 cm diameter, 27.0 in/68.6 cm length, 24.1 ft^3 volume The information I'm looking to collect is, what size cylinder do you actually have installed, and does it generally meet your needs? Thanks, Bob K.http://www.hpaircraft.com/hp-24 EDS system. AL415 bottle secured to the forward lift tube. Brad Tetra-15- Hide quoted text - - Show quoted text - Brad, What size is that?? I've been looking for days on various sites for a new cylinder, and I've concluded that each VENDOR comes up with their own 'standard' for naming the cylinders. I was thrilled to note that the cylinder in the Janus C was an enormous 39 Cubic Feet, and crushed when I found it was the special thin wall steel cylinder with a limited life, which had expired NINE YEARS AGO. |
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