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Schleicher directional air vents
Hi, All,
my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. The nose vent can get more or less closed, but there isn't any way to control the side vents. It occurs to me that there should be an adjustable directional vent in those side holes -- it's been a long time since I've flown a K-21, but it had those nice things that could direct air up along your canopy. Is that what should be in my plane? If so, I have no idea what happened to my original vents. Is there something else that people use? Thanks, -- Matt |
#2
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Schleicher directional air vents
My ASW-19 had two metal airliner type of vents, which swiveled and had
provision to control the airflow. I remember seeing plastic vents like these for sale within the last few years, but I can't remember where. -john On Jun 9, 11:31 am, mattm wrote: Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. The nose vent can get more or less closed, but there isn't any way to control the side vents. It occurs to me that there should be an adjustable directional vent in those side holes -- it's been a long time since I've flown a K-21, but it had those nice things that could direct air up along your canopy. Is that what should be in my plane? If so, I have no idea what happened to my original vents. Is there something else that people use? Thanks, -- Matt |
#3
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Schleicher directional air vents
On Jun 9, 8:42*am, jcarlyle wrote:
My ASW-19 had two metal airliner type of vents, which swiveled and had provision to control the airflow. I remember seeing plastic vents like these for sale within the last few years, but I can't remember where. They're called eyeball vents. Buy new plastic ones from wherever http://www.aircraftspruce.com/catalo...ticeyeball.php (every aircraft supplier has them..) for now, but then shop ebay for real ones (may take a while to come up in the size/style you want...) to replace them ASAP. On ebay you can pay plastic prices ($15-$30 apiece) for nice aluminum vents (normally $160+ apiece!). Some glider suppliers have the plastic ones too. Biggest difference is that the plastics basically have to be run full-on or off and quickly lose that ability as plastic parts wear, as opposed to the metal ones which have infinite flow adjustability via a slick little twist- activated internal damper. -Paul PS. I'm working on a Mandl exhaust vent hatch for ASW-20's and 19's and should have them available next month although cockpit airflow doesn't sound like a pressing concern for you... |
#4
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Schleicher directional air vents
On Jun 9, 8:31*am, mattm wrote:
Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. * It sound like your glider is modified from the original configuration. As built, the air intakes are under each wing. The air goes though the fuselage canopy frame rails to the nose vent. There are no vent holes in the side rails. (based on 19356) I accepted that the ventilation in my 19b was poor and often flew with canopy sliding window scoop open which was noisy. After flying my 28 for several years I have come to appreciate the much better vents and only ever use the sliding window scoop during the first part of the tow. (Arizona 110 deg F plus). If I had a 19 again I'd try to fit an adjustable/closable swivel ball vent in one or both side rails. The 28 ball vent works well but there are probably similar vents available. The side rails are structural so be careful about any mods. Andy |
#5
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Schleicher directional air vents
On Jun 9, 11:48*am, Andy wrote:
On Jun 9, 8:31*am, mattm wrote: Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. * It sound like your glider is modified from the original configuration. *As built, the air intakes are under each wing. *The air goes though the fuselage canopy frame rails to the nose vent. There are no vent holes in the side rails. (based on 19356) I accepted that the ventilation in my 19b was poor and often flew with canopy sliding window scoop open which was noisy. *After flying my 28 for several years I have come to appreciate the much better vents and only ever use the sliding window scoop during the first part of the tow. (Arizona 110 deg F plus). If I had a 19 again I'd try to fit an adjustable/closable swivel ball vent in one or both side rails. *The 28 ball vent works well but there are probably similar vents available. The side rails are structural so be careful about any mods. Andy OK, now I see where this came about. The plane originally lived in Florida, so the owner didn't mind the hurricane whirling around the cockpit in the heat. My first good flight this year was in February, and the cloudbase was around 6000', so it got really cold in there! The vents in the links mostly look like they're too big to fit on the rails. The holes are about 1" diameter, and there's not a lot of room around them to attach a flange. I suppose I could cut one down enough to fit. Hmmmm...... |
#6
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Schleicher directional air vents
On Jun 9, 1:42*pm, mattm wrote:
On Jun 9, 11:48*am, Andy wrote: On Jun 9, 8:31*am, mattm wrote: Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. * It sound like your glider is modified from the original configuration. *As built, the air intakes are under each wing. *The air goes though the fuselage canopy frame rails to the nose vent. There are no vent holes in the side rails. (based on 19356) I accepted that the ventilation in my 19b was poor and often flew with canopy sliding window scoop open which was noisy. *After flying my 28 for several years I have come to appreciate the much better vents and only ever use the sliding window scoop during the first part of the tow. (Arizona 110 deg F plus). If I had a 19 again I'd try to fit an adjustable/closable swivel ball vent in one or both side rails. *The 28 ball vent works well but there are probably similar vents available. The side rails are structural so be careful about any mods. Andy OK, now I see where this came about. *The plane originally lived in Florida, so the owner didn't mind the hurricane whirling around the cockpit in the heat. *My first good flight this year was in February, and the cloudbase was around 6000', so it got really cold in there! The vents in the links mostly look like they're too big to fit on the rails. *The holes are about 1" diameter, and there's not a lot of room around them to attach a flange. *I suppose I could cut one down enough to fit. *Hmmmm...... You're right... but that's not what I had in mind. Go look at an ASW-24 or newer. It would be a good Winter project. |
#7
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Schleicher directional air vents
On Jun 9, 1:42*pm, mattm wrote:
On Jun 9, 11:48*am, Andy wrote: On Jun 9, 8:31*am, mattm wrote: Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. * It sound like your glider is modified from the original configuration. *As built, the air intakes are under each wing. *The air goes though the fuselage canopy frame rails to the nose vent. There are no vent holes in the side rails. (based on 19356) I accepted that the ventilation in my 19b was poor and often flew with canopy sliding window scoop open which was noisy. *After flying my 28 for several years I have come to appreciate the much better vents and only ever use the sliding window scoop during the first part of the tow. (Arizona 110 deg F plus). If I had a 19 again I'd try to fit an adjustable/closable swivel ball vent in one or both side rails. *The 28 ball vent works well but there are probably similar vents available. The side rails are structural so be careful about any mods. Andy OK, now I see where this came about. *The plane originally lived in Florida, so the owner didn't mind the hurricane whirling around the cockpit in the heat. *My first good flight this year was in February, and the cloudbase was around 6000', so it got really cold in there! The vents in the links mostly look like they're too big to fit on the rails. *The holes are about 1" diameter, and there's not a lot of room around them to attach a flange. *I suppose I could cut one down enough to fit. *Hmmmm......- Hide quoted text - - Show quoted text - If they are the typical PVC tubing mod, just go to plumbing supply and buy 2 caps and 2 45 degree elbow. Then you can do kisser, crotch, pits, or nothing quite easily. Not elegant, buy works pretty well. UH |
#8
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Schleicher directional air vents
On Jun 9, 4:41*pm, wrote:
On Jun 9, 1:42*pm, mattm wrote: On Jun 9, 11:48*am, Andy wrote: On Jun 9, 8:31*am, mattm wrote: Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. * It sound like your glider is modified from the original configuration. *As built, the air intakes are under each wing. *The air goes though the fuselage canopy frame rails to the nose vent. There are no vent holes in the side rails. (based on 19356) I accepted that the ventilation in my 19b was poor and often flew with canopy sliding window scoop open which was noisy. *After flying my 28 for several years I have come to appreciate the much better vents and only ever use the sliding window scoop during the first part of the tow. (Arizona 110 deg F plus). If I had a 19 again I'd try to fit an adjustable/closable swivel ball vent in one or both side rails. *The 28 ball vent works well but there are probably similar vents available. The side rails are structural so be careful about any mods. Andy OK, now I see where this came about. *The plane originally lived in Florida, so the owner didn't mind the hurricane whirling around the cockpit in the heat. *My first good flight this year was in February, and the cloudbase was around 6000', so it got really cold in there! The vents in the links mostly look like they're too big to fit on the rails. *The holes are about 1" diameter, and there's not a lot of room around them to attach a flange. *I suppose I could cut one down enough to fit. *Hmmmm......- Hide quoted text - - Show quoted text - If they are the typical PVC tubing mod, just go to plumbing supply and buy 2 caps and 2 45 degree elbow. Then you can do kisser, crotch, pits, or nothing quite easily. Not elegant, buy works pretty well. UH- Hide quoted text - - Show quoted text - check out the ASW-20 newsgroup there are some photos of my PVC elbow vents in the files section http://groups.yahoo.com/group/ASW20owners/files/ Dan |
#9
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Schleicher directional air vents
On Jun 9, 7:54*pm, Dan wrote:
On Jun 9, 4:41*pm, wrote: On Jun 9, 1:42*pm, mattm wrote: On Jun 9, 11:48*am, Andy wrote: On Jun 9, 8:31*am, mattm wrote: Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. * It sound like your glider is modified from the original configuration. *As built, the air intakes are under each wing. *The air goes though the fuselage canopy frame rails to the nose vent. There are no vent holes in the side rails. (based on 19356) I accepted that the ventilation in my 19b was poor and often flew with canopy sliding window scoop open which was noisy. *After flying my 28 for several years I have come to appreciate the much better vents and only ever use the sliding window scoop during the first part of the tow. (Arizona 110 deg F plus). If I had a 19 again I'd try to fit an adjustable/closable swivel ball vent in one or both side rails. *The 28 ball vent works well but there are probably similar vents available. The side rails are structural so be careful about any mods. Andy OK, now I see where this came about. *The plane originally lived in Florida, so the owner didn't mind the hurricane whirling around the cockpit in the heat. *My first good flight this year was in February, and the cloudbase was around 6000', so it got really cold in there! The vents in the links mostly look like they're too big to fit on the rails. *The holes are about 1" diameter, and there's not a lot of room around them to attach a flange. *I suppose I could cut one down enough to fit. *Hmmmm......- Hide quoted text - - Show quoted text - If they are the typical PVC tubing mod, just go to plumbing supply and buy 2 caps and 2 45 degree elbow. Then you can do kisser, crotch, pits, or nothing quite easily. Not elegant, buy works pretty well. UH- Hide quoted text - - Show quoted text - check out the ASW-20 newsgroup there are some photos of my PVC elbow vents in the files sectionhttp://groups.yahoo.com/group/ASW20owners/files/ Dan Thanks to all the pointers on the subject from everyone! One of the two ASW-24's in the club showed up to fly on Saturday so I got a good look at the vent. I also noticed vestiges of hot glue gun glue left around the hole in my cockpit. The PVC arrangement will work out great for the rest of the season, anyway. Maybe I'll tackle the fancy one after the season is over. -- Matt |
#10
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Schleicher directional air vents
On Jun 9, 11:31*am, mattm wrote:
Hi, All, my ASW-19 has three different air vents in the cockpit -- one in the nose that's controlled by a handle above the instrument panel, plus two holes in the sidewalls. *The nose vent can get more or less closed, but there isn't any way to control the side vents. *It occurs to me that there should be an adjustable directional vent in those side holes -- it's been a long time since I've flown a K-21, but it had those nice things that could direct air up along your canopy. Is that what should be in my plane? *If so, I have no idea what happened to my original vents. Is there something else that people use? Thanks, -- Matt Any vents in the rails are aftermarket additions. One good source for quality eyeball vents: http://www.steinair.com/eyeballvents.htm If you are motivated enough, one of these could be glassed into the plenum on either side of the cockpit. It would look very much like the modern Schleicher setup. -T8 |
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