Spodman Posted March 8, 2004 Share Posted March 8, 2004 I understand COZY MK4 plans have a NACA inlet above and aft of the canard for face-level ventilation, leaving the nose pointy. Wouldn't you get more pressure from a ram-air duct in the extreme nose, or would any extra airflow be absorbed by longer ducting? Quote Mark Spedding - SpodmanDarraweit Guim - AustraliaCozy IV #1331 - Chapter 09www.mykitlog.com/Spodmanwww.sites.google.com/site/thespodplane/the-spodplane Link to comment Share on other sites More sharing options...
dust Posted March 9, 2004 Share Posted March 9, 2004 i've been told that a properly designed and located naca duct gets 99% of ram air preasure with almost no drag enjoy the build dust Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
Marc Zeitlin Posted March 9, 2004 Share Posted March 9, 2004 Originally posted by Spodman Wouldn't you get more pressure from a ram-air duct in the extreme nose, or would any extra airflow be absorbed by longer ducting? Yup, but I'll tell you, with the large, plastic vents and the stock NACA side ducts, I can just about blow myself through the front seatback with the airflow by the time I get up to flying speed. If there were any more air coming in, everything in the cabin would be floating all over the place. I did move my vents to a point directly behind the elevators, as it lined up with my vent location better, but I don't think that made much of a difference in pressure recovery. Quote Marc J. Zeitlin Burnside Aerospace marc_zeitlin@alum.mit.edu www.cozybuilders.org copyright © 2024 Link to comment Share on other sites More sharing options...
lacoss Posted March 25, 2004 Share Posted March 25, 2004 Are two front vents sufficient to also cool the aft passengers or do I need to add air vents for the rear also?Also is there an optimium size for the inlet air naca scoop. I am using 2.5" eyeball type nozzels. Quote Link to comment Share on other sites More sharing options...
Wayne Hicks Posted March 25, 2004 Share Posted March 25, 2004 Front seat ventilation was more than adequate in the four Cozies I've flown in, including the illustrious N83MZ. All had NACA scoops and locations per the plans. I haven't flown in the back seat of a Cozy yet. So I have no direct data point. But I have flown in the back of a Long-EZ with no back-seat ventilation. Thought the flight would NEVER end. The pilot stayed cool; I was soaking wet with sweat! Extrapolating, I'm hedging my bets and installing backseat ventilation. I am planning on installing one NACA vent on the underside of each strake, mid-way back, just outside of the lower cosmetic fairing. Each scoop will feed into an eyeball vent mounted in the baggage area in line with the shoulder brace. Therefore each backseat passenger gets his/her/canine's own facial air. The NACA's I have are the kind that can be screwed shut if no one is sitting back there. Let the four winds blow, ...Wayne Hicks Quote Wayne Hicks Cozy IV Plans #678 http://www.ez.org/pages/waynehicks Link to comment Share on other sites More sharing options...
Spodman Posted March 26, 2004 Author Share Posted March 26, 2004 I have seen rear seat ventilation (a picture anyhow) in the back of a Long-ez, a duct diagonally across the front seat back from under the wing terminating in a box with two eyeballs. Looked a bit cr@ppy, but better than sweating! Don't know why you would need two in a Long-ez. Definitely something I'd incorporate in a Cozy. Quote Mark Spedding - SpodmanDarraweit Guim - AustraliaCozy IV #1331 - Chapter 09www.mykitlog.com/Spodmanwww.sites.google.com/site/thespodplane/the-spodplane Link to comment Share on other sites More sharing options...
Wayne Hicks Posted March 26, 2004 Share Posted March 26, 2004 Spodman: I know the plane you are referring to. I prefer the strake solution for rear air. Much more elegant. Why two vents? Depends on where you'll be flying. But lemme tell ya what. On a 90+ degree day with high humidity, there's no such thing as having ENOUGH ventilation in the back seat of a Long EZ. ==================== Wayne Hicks Cozy IV Plans #678 http://www.maddyhome.com/canardpages/pages/waynehicks/index.html Quote Wayne Hicks Cozy IV Plans #678 http://www.ez.org/pages/waynehicks Link to comment Share on other sites More sharing options...
Spodman Posted March 26, 2004 Author Share Posted March 26, 2004 My significant other's main derision about the project is luggage space, I dare not sacrifice any! Quote Mark Spedding - SpodmanDarraweit Guim - AustraliaCozy IV #1331 - Chapter 09www.mykitlog.com/Spodmanwww.sites.google.com/site/thespodplane/the-spodplane Link to comment Share on other sites More sharing options...
dust Posted March 26, 2004 Share Posted March 26, 2004 luggage pods, take your wife and her baggage, the strake area is so small as to be not considerred as "baggage" area, maybe clean socks area and a tooth brush enjoy the build dust Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
mplafleur Posted March 27, 2004 Share Posted March 27, 2004 I've seen the luggage pods before, but I don't know how much room is actually in them. Does anybody have the dimensions? Quote Mike LaFLeur - Cozy MkIV #1155N68ML Link to comment Share on other sites More sharing options...
John Slade Posted March 27, 2004 Share Posted March 27, 2004 luggage pods, take your wife and her baggage I don't know how much room is actually in them Probably not enough room to get the wife in. The epoxy guru guy makes them. Gary something. Quote I can be reached on the "other" forum http://canardaviationforum.dmt.net Link to comment Share on other sites More sharing options...
dust Posted March 27, 2004 Share Posted March 27, 2004 There are usually two pods to pack her in. enjoy the build dust Quote maker wood dust and shavings - foam and fiberglass dust and one day a cozy will pop out, enjoying the build i can be reached at http://www.canardcommunity.com/ Link to comment Share on other sites More sharing options...
mplafleur Posted March 28, 2004 Share Posted March 28, 2004 I'm wondering how mant cubic feet? Quote Mike LaFLeur - Cozy MkIV #1155N68ML Link to comment Share on other sites More sharing options...
Jim Sower Posted March 28, 2004 Share Posted March 28, 2004 Originally posted by mplafleur I'm wondering how mant cubic feet? If you're married, it doesn't matter. It won't be enough. It can never be. Something on the order of 12" x 48". Go figure. Quote ...Destiny's Plaything... Link to comment Share on other sites More sharing options...
PaulL Posted March 29, 2004 Share Posted March 29, 2004 Ventilation?... I tried something new. I used the NG wheel well for ventilation source. You can see the setup at http://www.abri.com/sq2000/control43.jpg The description is at http://www.abri.com/sq2000/18.html I just completed the SQ2000 bird and had it inspected. Getting ready for first flight. But in taxi tests the vents appear to work - should since the lower part of the fuselage is at higher pressure than upper. Quote Link to comment Share on other sites More sharing options...
CBarber Posted March 29, 2004 Share Posted March 29, 2004 The epoxy guru guy's (crew cheif for the Exxon Flyin Tiger and retired "big wig" with Shell Chemistry division) name is Gary Hunter. He is down here in Houston and was my EAA tech advisor on my first inspection last February. If you are really interested I can contact a buddy who put me in contact with him and try to get his email. .....on a separate note, I installed my center spar last night. All the best, Chris Quote Christopher Barber Velocity SE/FG w/yoke. Zoom, zoom, zoom. www.LoneStarVelocity.com Live with Passion... Link to comment Share on other sites More sharing options...
Spodman Posted March 30, 2004 Author Share Posted March 30, 2004 Baggage pod thread, with pictures I had an e-mail for Gary Hunter, but no website. Lost it. Baggage pod installation Featherlite makes the baggage pods Bruce Tift used to. Ken Murphy has them on his Cozy Mark IV and says it cost him 2 or 3 knts. Nat - something I'd saved from another forum. I like the nose wheel vent idea, it would be an extra incentive to steer carefully around the cowpats at a country airport to avoid smelling them for the rest of your flight:bad: Quote Mark Spedding - SpodmanDarraweit Guim - AustraliaCozy IV #1331 - Chapter 09www.mykitlog.com/Spodmanwww.sites.google.com/site/thespodplane/the-spodplane Link to comment Share on other sites More sharing options...
Wayne Hicks Posted March 30, 2004 Share Posted March 30, 2004 Gary Hunter Composites gluegaru@earthlink.net cell phone: 281-433-8478 Quote Wayne Hicks Cozy IV Plans #678 http://www.ez.org/pages/waynehicks Link to comment Share on other sites More sharing options...
marbleturtle Posted March 30, 2004 Share Posted March 30, 2004 These are Kevin Funk's pods. I'm almost certain he said he made his. Quote This ain't rocket surgery! Link to comment Share on other sites More sharing options...
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