---------------------------------------------------------- Kitfox-List Digest Archive --- Total Messages Posted Thu 01/13/05: 20 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:18 AM - Re: Jet Thrust was: Re: cutting exhaust pipe (kurt schrader) 2. 03:03 AM - Jet Thrust (AlbertaIV@aol.com) 3. 03:42 AM - Re: Jet Thrust was: Re: cutting exhaust pipe (Lynn Matteson) 4. 05:26 AM - Re: Jet Thrust was: Re: cutting exhaust pipe (scottm) 5. 05:41 AM - EXotic EXhaust EXample WAS: Jet Thrust (Michel Verheughe) 6. 06:14 AM - Re: [PLEASE READ NOW] - Addressing Upgrade At Matron (OKE Jim) 7. 06:31 AM - Photos taken from Kitfox (Steve Zakreski) 8. 06:47 AM - Re: Photos taken from Kitfox (Ron) 9. 07:15 AM - The most spectacular flight in the world (Steve Zakreski) 10. 07:43 AM - Re: The most spectacular flight in the world (customtrans@qwest.net) 11. 08:13 AM - Re: [PLEASE READ NOW] - Addressing Upgrade At Matron ics TONIGHT! (Don Pearsall) 12. 08:23 AM - Re: The most spectacular flight in the world (jim rodenkirk) 13. 12:23 PM - Jimmie Blackwell (Andy) 14. 12:46 PM - Re: The most spectacular flight in the world (kerrjohna@comcast.net) 15. 04:19 PM - Re: Jet Thrust was: Re: cutting exhaust pipe (Randy Daughenbaugh) 16. 05:34 PM - Re: Jet Thrust was: Re: cutting exhaust pipe () 17. 06:13 PM - Jet Thrust and water injection. (Torgeir Mortensen) 18. 06:38 PM - REFUELING FIRE! (Torgeir Mortensen) 19. 09:13 PM - Re: Post Photos (Steve Zakreski) 20. 10:18 PM - Need reassurances.... (Greaves) ________________________________ Message 1 _____________________________________ Time: 02:18:31 AM PST US From: kurt schrader Subject: Re: Jet Thrust was: RE: Kitfox-List: cutting exhaust pipe --> Kitfox-List message posted by: kurt schrader Randy, Don and Paul, That's alright guys. If you knew what I looked like, you would know this is not bad ribbing. ;-) Ha ha I get no respect! Torgier's references are really good and talk about many of the issues dealing with exhausts, if you are interested. Because most people aren't interested, a lot of power is wasted here. At least some research (by the EAA) is done on the subject now though. Still a lot more power is available there that is not used simply because no one bothers. We use less than 25% of our power and throw the rest away. My main point is that you can gain 100% jet lift from the exhaust by pointing it straight down. Or you can gain 100% jet thrust by pointing the exhaust aft. But due to vector math, you can get 70% lift plus 70% thrust pointing the exhaust at a 45 degree angle. That means you get 140% value from it, not 100%. 40% more benefit just from the angle. Its true. It does reduce the benefit by bending the pipes or adding an elbow due to fluid dynamics. But look at most exhausts. They are full of bends. But the closer you can come to a straight pipe aimed down and aft at 45 degrees, the better in most cases. There has been more research into nozzle designs since the vectored thrust research planes have come out. But still little is done with it at the small plane level. Tip cutting is simple, but not so efficient as point the pipe where you want it. Making a nozzel that takes advantage of supersonic pulses might be another area of study. This is an expanding port that keeps the flow fast, but increases the area over which the pressure of the pulse is felt. I am too tired to go into it now. Sorry, but it does have to do with rocket exhaust patterns and the ability to maintain a supersonic pressure over an expanded area thereby increasing the thrust. Then there is the ability to use the exhaust to extract cooling air from the cowl (or from the radiator). Some Bonanzas and the T-34 have such exhaust augmentors. Randy, I posted the story about the free piston engine with the water injection used to power the go-cart. It is an old Popular Science article that I had and lost due to the 97 flood here. If you are interested, contact me off list and I'll pass on what I know. it was a neat experiment. Kurt S. --- AlbertaIV@aol.com wrote: > Well you learn something everyday! My apologies to > Kurt for harboring some minor doubts. > And thanks to both Kurt and Torgeir. > > > Duh,,,me to Kurt. I did razz you a bit on this one. > > Don Smythe > N-998DS Classic IV W/ 582 __________________________________ ________________________________ Message 2 _____________________________________ Time: 03:03:33 AM PST US From: AlbertaIV@aol.com Subject: Kitfox-List: Jet Thrust --> Kitfox-List message posted by: AlbertaIV@aol.com In a message dated 1/13/05 2:19:14 AM Pacific Standard Time, smokey_bear_40220@yahoo.com writes: << Randy, Don and Paul, That's alright guys. If you knew what I looked like, you would know this is not bad ribbing. ;-) Ha ha >> Well Kurt, now I'm really worried. I have finished all the mods on my plane. My new exhaust pipe ended up (by accident) pointing down and aft at about a 45 degree angle. It's not sticking too far out of the plane. I cut some of the existing exhaust pipe off and found a bent oversized extension at the auto store. Necked it down a bit and had it welded over the existing pipe by a Nuclear Pipe Welder friend. Excellent work. I did not slant cut the tip "yet" due to the close proximity of the new bottom rad cowl. According to your report, leaving as is might be the best. My real fear now is to fly the airplane and have all the fabric blow off due to the new gained thrust. Hee Hee (couldn't help myself) My BFR is expired and I can't legally test flight the plane. Not to mention, I have made major mods and need to test solo. I think my CFI buddy is going with me anyway and act as Crew/CFI/BFR signoff. Do Not Archive Don Smythe N-998DS Classic IV W/ 582 ________________________________ Message 3 _____________________________________ Time: 03:42:12 AM PST US Subject: Re: Jet Thrust was: RE: Kitfox-List: cutting exhaust pipe From: Lynn Matteson --> Kitfox-List message posted by: Lynn Matteson Speaking of water injection, does anyone recall the drag racer at the Nationals in Indianapolis in the early '60's I believe, that was going pretty fast during qualifications, and subsequent inspections revealed he had a water injection system aboard. Officials decided that this broke a rule that stipulated "automotive pump fuel only", and made him remove the system. He proceeded to go faster without it...and ended up winning the Nationals that year. The first name Pete seems to come to mind, but I'm not sure. It was a small block Chevy, and he kicked butt on all the big Hemi's that year, which p___ed me off, 'cause I was running a Hemi in my local drag roadster, and hated those "johnny-come-lately" modern, high-revving, new-fangled, I-can't-afford-them-so-they-must-be-no-good engines. Lynn do not archive On Thursday, January 13, 2005, at 05:16 AM, kurt schrader wrote: > > Randy, I posted the story about the free piston engine > with the water injection used to power the go-cart. > It is an old Popular Science article that I had and > lost due to the 97 flood here. If you are interested, > contact me off list and I'll pass on what I know. it > was a neat experiment. > > Kurt S. > > ________________________________ Message 4 _____________________________________ Time: 05:26:15 AM PST US From: "scottm" Subject: RE: Jet Thrust was: RE: Kitfox-List: cutting exhaust pipe --> Kitfox-List message posted by: "scottm" There was a lot of talk on one of the lists a few years ago (I think it was on Airsoob)about using the exhaust to draw vacuum. The concept was slightly different however. It consisted of putting a tube tap into the exhaust, kind of like you would a probe, and the right location and geometry of the tip would result in vacuum due to the high-speed exhaust gases exerting a pull on air in the now tapped in tube. I believe there was also a need for a reed valve in the line. I remember a couple of members trying it out and having some success, although it was pointed out that you would not want to have any exhaust gases come up your tube and due damage to your instruments (since the exhaust gases might be corrossive). > --> Kitfox-List message posted by: paul wilson > > The use of the exhaust for alternate vac is available as a > kit. Cant source it for you but I know that it was a big > discussion for Cesnas back a while ago. I think a little > experimentation using a venturi could be adapted for a > sole source of vac. A neat idea because it will deliver > vac whenever the engine is at full speed. Not so good > during landing when the engine is at idle. > For alternate vac the kit included a trick vac valve to > make the switchover. > Paul > =========== ________________________________ Message 5 _____________________________________ Time: 05:41:34 AM PST US From: Michel Verheughe Subject: Kitfox-List: EXotic EXhaust EXample WAS: Jet Thrust --> Kitfox-List message posted by: Michel Verheughe > From: Don Pearsall [donpearsall@comcast.net] > The exhaust vacuum source would be instant as soon as the engine is started, > while the external one doesn't start working till about 30 mph. > Has anyone done this or seen it done, or has any theories about it? Never, Don. But I am amazed by the ingenuity of this list. Isn't it fun to discuss and experiment? Incidentally, the most exotic use of exhaust fumes I have heard of is in WIG (Wing In Ground) construction, where underwinged and underpowered "flying boats" need to overcome the substential drag of the water. One guy did it by having the exhaust pipe in the step of the hull. Apparently it helps considerably the ventilation of the water aft of the step and decreases the time needed to get airborne as the water "sticks" less if ventilated. Cheers, Michel PS: I had great fun writing the title! ... ok, I'll shut up! :-) do not archive ________________________________ Message 6 _____________________________________ Time: 06:14:06 AM PST US From: OKE Jim ics TONIGHT! Subject: RE: Kitfox-List: [PLEASE READ NOW] - Addressing Upgrade At Matron ics TONIGHT! --> Kitfox-List message posted by: OKE Jim Greetings Matt! I need your help, please! I just re-joined your very cool Kitfox List again recently. I was getting a bit overwhelmed at the number of incoming e-mails from the List. I went in and clicked a button on your subscription form, thinking that I could just get sent the "Digest Version" or condensed version of the postings to the list. I think I clicked the right button in the Kitfox List Digest version, but, I now seem to be subscribed to every builders list that you have. Today I got 190 e-mails!!! Help!!! I am on a dial-up modem here and I don't want 200 e-mails a day!!! Can you please undo whatever I did. Can you also tell me how I can just get the condensed version of the Kitfox List please! If you can't help me get this sorted out I will just un-subscribe and re-register. Your immediate help would be appreciated. Jim Oke Jim.oke@sonepardis.ca -----Original Message----- From: dralle@matronics.com [mailto:dralle@matronics.com] Subject: Kitfox-List: [PLEASE READ NOW] - Addressing Upgrade At Matronics TONIGHT! --> Kitfox-List message posted by: dralle@matronics.com (Matt Dralle) Dear Listers, Tonight, Friday 1/7/2005 at 7pm PDT, I will be working with my Internet Service Provider to upgrade to a larger IP subnet. I will be re-addressing all of the machines on the network including the Matronics Web Server and Matronics Email Server at that time. Name Service will be updated at that time as well and most things should work again pretty quick. There may be some bounced email for a few hours or even a day or so as the new name-to-ip-address resolutions propagate into the depths of the Internet. If you have problems posting a message to one of the Lists or get a bounced message back, please wait a couple of hours and try sending it again. Generally, access to the web site should work within 1-hour of the update or around 8pm PDT. Hopefully the transition will go smoothly and you'll hardly even notice! :-) Thanks for your patience! Matt Dralle List Administrator -- Matt G. Dralle | Matronics | P.O. Box 347 | Livermore | CA | 94551 925-606-1001 Voice | 925-606-6281 FAX | dralle@matronics.com Email http://www.matronics.com/ W.W.W. | Featuring Products For Aircraft Avis de confidentialite: L'information contenue dans ce message electronique ainsi que dans les fichiers qui peuvent y etre attaches est de nature confidentielle et destinee a l'usage exclusif du destinataire. Si ce message vous est parvenu par erreur ou que vous n'etes pas le destinataire vise, vous etes par la presente avise que tout usage, copie ou distribution de l'information contenue dans ce message est strictement interdit et vous etes prie d'en aviser l'expediteur et de detruire ce message. Confidentiality Notice : This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended for only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ________________________________ Message 7 _____________________________________ Time: 06:31:20 AM PST US From: Steve Zakreski Subject: Kitfox-List: Photos taken from Kitfox --> Kitfox-List message posted by: Steve Zakreski List I just posted some fun photos taken from the Kitfox 3 years ago: Mount St Helen, up real close. Note the steam: http://www.sportflight.com/uploads/MountStHelen.jpg Hoover Dam: http://www.sportflight.com/uploads/HooverDam.jpg Approaching Las Vegas at Night after flying direct from Sonoma County, CA. That's the Las Vegas Strip with all the casinos: http://www.sportflight.com/uploads/ArrivingNightLasVegas.jpg SteveZ Calgary ________________________________ Message 8 _____________________________________ Time: 06:47:22 AM PST US From: "Ron" Subject: Re: Kitfox-List: Photos taken from Kitfox --> Kitfox-List message posted by: "Ron" Thanks for sharing the pics with us, Steve. They were really nice. Ron DO NOT ARCHIVE > Mount St Helen, up real close. Note the steam: > http://www.sportflight.com/uploads/MountStHelen.jpg > > Hoover Dam: > http://www.sportflight.com/uploads/HooverDam.jpg > > Approaching Las Vegas at Night after flying direct from Sonoma County, CA. > That's the Las Vegas Strip with all the casinos: > http://www.sportflight.com/uploads/ArrivingNightLasVegas.jpg > > SteveZ > > ________________________________ Message 9 _____________________________________ Time: 07:15:31 AM PST US From: Steve Zakreski Subject: Kitfox-List: The most spectacular flight in the world --> Kitfox-List message posted by: Steve Zakreski List Not quite Kitfox related, but aviation related.. We just got back from a vacation in Hawaii where we took a helicopter flight around the island of Kauai where they filmed movies such as King Kong and Jurassic Park. People...never in my life have I ever had such a spectacular 45 minute flight. Absolutely breathtaking. The scenery and geology is so different and so spectacular it makes you cry. Just imagine combining the most jagged and rugged volcanic mountain geology, with the wettest place on the planet and you get the idea. Everything covered in lush green, with waterfalls sprouting out of the sides of mountains all over the place, valleys and cliffs like the Grand Canyon, and not a road, building, or person in sight... The culmination was when he slowly took the helicopter through a winding chasm, around a bend... to a sheer cliff wall...and then he slowly turned the helicopter 360 degrees and you realize you are deep inside the actual lava pipe of the volcano, rising up a few thousand feet up, all covered in green, with water flowing everywhere. People...this flight is so spectacular, I would consider a trip to Hawaii just for the flight alone. Don't miss it before your done with this life. Just make sure you wait for a clear day. SteveZ ________________________________ Message 10 ____________________________________ Time: 07:43:27 AM PST US From: customtrans@qwest.net Subject: RE: Kitfox-List: The most spectacular flight in the world --> Kitfox-List message posted by: customtrans@qwest.net Steve, I did this same thing on me and the mrs.25th anniversary a couple years back. The way you described it is absolutely correct. steve a -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Steve Zakreski Subject: Kitfox-List: The most spectacular flight in the world --> Kitfox-List message posted by: Steve Zakreski List Not quite Kitfox related, but aviation related.. We just got back from a vacation in Hawaii where we took a helicopter flight around the island of Kauai where they filmed movies such as King Kong and Jurassic Park. People...never in my life have I ever had such a spectacular 45 minute flight. Absolutely breathtaking. The scenery and geology is so different and so spectacular it makes you cry. Just imagine combining the most jagged and rugged volcanic mountain geology, with the wettest place on the planet and you get the idea. Everything covered in lush green, with waterfalls sprouting out of the sides of mountains all over the place, valleys and cliffs like the Grand Canyon, and not a road, building, or person in sight... The culmination was when he slowly took the helicopter through a winding chasm, around a bend... to a sheer cliff wall...and then he slowly turned the helicopter 360 degrees and you realize you are deep inside the actual lava pipe of the volcano, rising up a few thousand feet up, all covered in green, with water flowing everywhere. People...this flight is so spectacular, I would consider a trip to Hawaii just for the flight alone. Don't miss it before your done with this life. Just make sure you wait for a clear day. SteveZ ________________________________ Message 11 ____________________________________ Time: 08:13:54 AM PST US From: "Don Pearsall" Subject: RE: Kitfox-List: [PLEASE READ NOW] - Addressing Upgrade At Matron ics TONIGHT! --> Kitfox-List message posted by: "Don Pearsall" Jim, I am having Matt Dralle help you. Hopefully by the time you read this, you will be un-subscribed from the rest of the lists. Don Pearsall Kitfox List Manager -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of OKE Jim Subject: RE: Kitfox-List: [PLEASE READ NOW] - Addressing Upgrade At Matron ics TONIGHT! --> Kitfox-List message posted by: OKE Jim Greetings Matt! I need your help, please! I just re-joined your very cool Kitfox List again recently. I was getting a bit overwhelmed at the number of incoming e-mails from the List. I went in and clicked a button on your subscription form, thinking that I could just get sent the "Digest Version" or condensed version of the postings to the list. I think I clicked the right button in the Kitfox List Digest version, but, I now seem to be subscribed to every builders list that you have. Today I got 190 e-mails!!! Help!!! I am on a dial-up modem here and I don't want 200 e-mails a day!!! Can you please undo whatever I did. Can you also tell me how I can just get the condensed version of the Kitfox List please! If you can't help me get this sorted out I will just un-subscribe and re-register. Your immediate help would be appreciated. Jim Oke Jim.oke@sonepardis.ca -----Original Message----- From: dralle@matronics.com [mailto:dralle@matronics.com] Subject: Kitfox-List: [PLEASE READ NOW] - Addressing Upgrade At Matronics TONIGHT! --> Kitfox-List message posted by: dralle@matronics.com (Matt Dralle) Dear Listers, Tonight, Friday 1/7/2005 at 7pm PDT, I will be working with my Internet Service Provider to upgrade to a larger IP subnet. I will be re-addressing all of the machines on the network including the Matronics Web Server and Matronics Email Server at that time. Name Service will be updated at that time as well and most things should work again pretty quick. There may be some bounced email for a few hours or even a day or so as the new name-to-ip-address resolutions propagate into the depths of the Internet. If you have problems posting a message to one of the Lists or get a bounced message back, please wait a couple of hours and try sending it again. Generally, access to the web site should work within 1-hour of the update or around 8pm PDT. Hopefully the transition will go smoothly and you'll hardly even notice! :-) Thanks for your patience! Matt Dralle List Administrator -- Matt G. Dralle | Matronics | P.O. Box 347 | Livermore | CA | 94551 925-606-1001 Voice | 925-606-6281 FAX | dralle@matronics.com Email http://www.matronics.com/ W.W.W. | Featuring Products For Aircraft Avis de confidentialite: L'information contenue dans ce message electronique ainsi que dans les fichiers qui peuvent y etre attaches est de nature confidentielle et destinee a l'usage exclusif du destinataire. Si ce message vous est parvenu par erreur ou que vous n'etes pas le destinataire vise, vous etes par la presente avise que tout usage, copie ou distribution de l'information contenue dans ce message est strictement interdit et vous etes prie d'en aviser l'expediteur et de detruire ce message. Confidentiality Notice : This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended for only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. ________________________________ Message 12 ____________________________________ Time: 08:23:54 AM PST US From: jim rodenkirk Subject: Re: Kitfox-List: The most spectacular flight in the world --> Kitfox-List message posted by: jim rodenkirk Our family did a helicopter flight on the big Island. Yes it was quite a beautiful experience. Flying into 1000' sheer canyon walls with waterfalls all around you, wow. Our flight included a on board movie( that we could purchase of course) of the flight and also of the cabin. I was in front, to busy looking out to notice that my wife and 2 daughters had a huge sick look on there face, until I saw them on tape. Apparently soon after the 360,s in the canyon they got a little motion sick. Then the pilot went out to circle some humpbacks. They were happy to be back on the ground! We opted for the budget flight, did'nt include any volcanos, but was well worth it! Jim >--> Kitfox-List message posted by: customtrans@qwest.net > >Steve, >I did this same thing on me and the mrs.25th anniversary a couple years >back. The way you described it is absolutely correct. > >steve a > >-----Original Message----- >From: owner-kitfox-list-server@matronics.com >[mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Steve >Zakreski >To: kitfox-list@matronics.com >Subject: Kitfox-List: The most spectacular flight in the world > > >--> Kitfox-List message posted by: Steve Zakreski > >List > >Not quite Kitfox related, but aviation related.. > >We just got back from a vacation in Hawaii where we took a helicopter flight >around the island of Kauai where they filmed movies such as King Kong and >Jurassic Park. People...never in my life have I ever had such a spectacular >45 minute flight. Absolutely breathtaking. The scenery and geology is so >different and so spectacular it makes you cry. >Just imagine combining the most jagged and rugged volcanic mountain geology, >with the wettest place on the planet and you get the idea. Everything >covered in lush green, with waterfalls sprouting out of the sides of >mountains all over the place, valleys and cliffs like the Grand Canyon, and >not a road, building, or person in sight... >The culmination was when he slowly took the helicopter through a winding >chasm, around a bend... to a sheer cliff wall...and then he slowly turned >the helicopter 360 degrees and you realize you are deep inside the actual >lava pipe of the volcano, rising up a few thousand feet up, all covered in >green, with water flowing everywhere. >People...this flight is so spectacular, I would consider a trip to Hawaii >just for the flight alone. Don't miss it before your done with this life. >Just make sure you wait for a clear day. >SteveZ > > > > ________________________________ Message 13 ____________________________________ Time: 12:23:09 PM PST US From: "Andy" Subject: Kitfox-List: Jimmie Blackwell --> Kitfox-List message posted by: "Andy" Jimmie, E-mail me direct so I can get your e-mail. Thanks. Andy ________________________________ Message 14 ____________________________________ Time: 12:46:20 PM PST US From: kerrjohna@comcast.net Subject: Re: Kitfox-List: The most spectacular flight in the world --> Kitfox-List message posted by: kerrjohna@comcast.net sounds great Steve, we were on Kauai between Christmas and New Years and had just one day when it was not teeming down. Your timing must have been better. John Kerr Logan UT -------------- Original message -------------- > --> Kitfox-List message posted by: Steve Zakreski > > List > > Not quite Kitfox related, but aviation related.. > > We just got back from a vacation in Hawaii where we took a helicopter flight > around the island of Kauai where they filmed movies such as King Kong and > Jurassic Park. People...never in my life have I ever had such a spectacular > 45 minute flight. Absolutely breathtaking. The scenery and geology is so > different and so spectacular it makes you cry. > Just imagine combining the most jagged and rugged volcanic mountain geology, > with the wettest place on the planet and you get the idea. Everything > covered in lush green, with waterfalls sprouting out of the sides of > mountains all over the place, valleys and cliffs like the Grand Canyon, and > not a road, building, or person in sight... > The culmination was when he slowly took the helicopter through a winding > chasm, around a bend... to a sheer cliff wall...and then he slowly turned > the helicopter 360 degrees and you realize you are deep inside the actual > lava pipe of the volcano, rising up a few thousand feet up, all covered in > green, with water flowing everywhere. > People...this flight is so spectacular, I would consider a trip to Hawaii > just for the flight alone. Don't miss it before your done with this life. > Just make sure you wait for a clear day. > SteveZ > > > > > > sounds great Steve, we were on Kauai between Christmas and New Years and had just one day when it was not teeming down. Your timing must have been better. John Kerr Logan UT -------------- Original message -------------- -- Kitfox-List message posted by: Steve Zakreski List Not quite Kitfox related, but aviation related.. We just got back from a vacation in Hawaii where we took a helicopter flight around the island of Kauai where they filmed movies such as King Kong and Jurassic Park. People...never in my life have I ever had such a spectacular 45 minute flight. Absolutely breathtaking. The scenery and geology is so different and so spectacular it makes you cry. Just imagine combining the most jagged and rugged volcanic mountain geology, with the wettest place on the planet and you get the idea. Everything covered in lush green, with waterfalls sprouting out of the sides of mountains all over the plac e, valleys and cliffs like the Grand Canyon, and not a road, building, or person in sight... The culmination was when he slowly took the helicopter through a winding chasm, around a bend... to a sheer cliff wall...and then he slowly turned the helicopter 360 degrees and you realize you are deep inside the actual lava pipe of the volcano, rising up a few thousand feet up, all covered in green, with water flowing everywhere. People...this flight is so spectacular, I would consider a trip to Hawaii just for the flight alone. Don't miss it before your done with this life. Just make sure you wait for a clear day. SteveZ any other p://www.matronics.com/contribution ________________________________ Message 15 ____________________________________ Time: 04:19:48 PM PST US From: "Randy Daughenbaugh" Subject: RE: Jet Thrust was: RE: Kitfox-List: cutting exhaust pipe --> Kitfox-List message posted by: "Randy Daughenbaugh" That's alright guys. If you knew what I looked like, you would know this is not bad ribbing. ;-) Ha ha I get no respect! Kurt, You don't fly with a helmet with Viking horns on it do you? Randy ________________________________ Message 16 ____________________________________ Time: 05:34:15 PM PST US From: Subject: Re: Jet Thrust was: RE: Kitfox-List: cutting exhaust pipe --> Kitfox-List message posted by: This reminds me of the thrust advantage used by drag racers which can be very signifcant since those Top Fuel engines put out a huge amount of exhaust thrust. (ever see them run at night?) I remember a TV race commentator giving a figure for it, but can't remember how much. It looks like they are at 45 degrees too! They've been like that for many many years. Rex M2 582 Colorado On Thu, 13 Jan 2005 02:16:59 -0800 (PST) kurt schrader wrote: > --> Kitfox-List message posted by: kurt schrader > > My main point is that you can gain 100% jet lift from > the exhaust by pointing it straight down. Or you can > gain 100% jet thrust by pointing the exhaust aft. But > due to vector math, you can get 70% lift plus 70% > thrust pointing the exhaust at a 45 degree angle. > That means you get 140% value from it, not 100%. 40% > more benefit just from the angle. Its true. ________________________________ Message 17 ____________________________________ Time: 06:13:40 PM PST US Subject: Kitfox-List: Jet Thrust and water injection. From: Torgeir Mortensen --> Kitfox-List message posted by: Torgeir Mortensen Hi there, Thanks for the flowers. Seems to be lot's of interest here, so I'll give this link again-, from our neighbor list; "The Kolb list". This guy know his lesson.. And this is Jack Hart. Start with the first page -then next and so on. Here is lot's of interesting thing to check out, IMO. But remember, the Kolb is a "little" different than a Kitfox, but the theory behind- is just the same! However, this guy talk about WA injection, - and tried it out !!! And lot's of more.. http://www.thirdshift.com/jack/firefly/firefly.html A little more about water injection, since Jacks direct link do not work. Here is a "paste" from the MSD powersport, below you'll find a link to their "injector system". ......................... TWO STROKE WATER INJECTION How does water injection work? Water is injected into the expansion chamber at specific rpm levels, this alters the sonic wave in the pipe. The water molecules directly affect the sonic wave properties, modifying back pressure deflection. You want the water to be injected at low to mid range rpms, and to be tapered off before your engine enters your upper rpm levels (leaving enough water to prevent any rubber couplers from melting). At 3,000 rpm the MSD Pulse Width Modulated (PWM) Switch turns on the water, by gently pulsing it on and off, then (at a rpm you preset) it will flow a steady stream of water. At a user preset rpm, the water starts pulsating on & off again, as the rpm rise, the volume of water decreases until the shutoff point is reached. There is no abrupt changes in power with the MSD PWM Switch...as though you are hitting a pipes' powerband. With the water gently pulsing on and off, instead of suddenly on and then suddenly off you avoid the unwanted pipe "power band" effect. Will it help top end? The primary benefits are low and mid range power increases. To also gain top end performance you could restrict the water flow in your pipe's stock cooling system, and use the MSD PWM switch to not only tune the pipe, but cool it at the same time. This is tricky because if you restrict the stock water cooling too much, you could melt the rubber couplers. ........................ http://www.msdpowersports.com/2004_watercraft_wics.html Regards, Torgeir. -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/ ________________________________ Message 18 ____________________________________ Time: 06:38:47 PM PST US Subject: Kitfox-List: REFUELING FIRE! From: Torgeir Mortensen --> Kitfox-List message posted by: Torgeir Mortensen Hi Folks, Thought I should share this little story -cause it happened to my friend Alfred, the builder of my Kitfox model II. This link go to the "EZ Squadron" (long EZ): http://www.ez.org/cp55-p3.htm Torgeir. -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/ ________________________________ Message 19 ____________________________________ Time: 09:13:03 PM PST US From: Steve Zakreski Subject: RE: Kitfox-List: Post Photos --> Kitfox-List message posted by: Steve Zakreski Oops... maybe I should clarify something... Around my house, the term bumpkin is a term of endearment...not an insult. Damn...I should be more careful! ;-) SteveZ -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Don Pearsall Subject: RE: Kitfox-List: Post Photos --> Kitfox-List message posted by: "Don Pearsall" Steve, I have found that when the photo posting fails, it is most likely due to a name that the web server does not like, or a huge sized photo. Try to avoid putting non-letter/number characters in the photo name. If there are spaces, @, &, and other odd characters, the web code cannot locate the photo. Don -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Steve Zakreski Subject: Kitfox-List: Post Photos --> Kitfox-List message posted by: Steve Zakreski Speaking of photos. Don/Deke...how about setting up a folder in the Kitfox Sportflight Photo site for pictures of our list members. I would love to see what the bumpkins I've been listing to for 8 years really look like. Incidentally, I find posting photos on this site to be hit and miss. I get a lot of upload failures. Are there any tricks I should know about? SteveZ -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Steve Zakreski Subject: RE: Kitfox-List: Re: Engine choices --> Kitfox-List message posted by: Steve Zakreski Refer to the picture of me over the mountains I posted two weeks ago. ;-) SteveZ Calgary -----Original Message----- From: owner-kitfox-list-server@matronics.com [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Lonnie_D._Tillinghast@oxy.com Subject: Kitfox-List: Re: Engine choices --> Kitfox-List message posted by: Anyone perfectly happy with what they have and simply flying for the fun of it??? ________________________________ Message 20 ____________________________________ Time: 10:18:49 PM PST US From: "Greaves" Subject: Kitfox-List: Need reassurances.... --> Kitfox-List message posted by: "Greaves" Anyone else going nuts waiting for their kit? I ordered back in August....paid in full of course. Was told I would likely have my kit by end of October or mid November. Mid-Nov arrived and I was advised the spars were backed up for the quick builds and I would be looking at mid-December or so. After the second week of December came with no mention of what was happening, I contacted Skystar. I was notified that my kit had been sent out to somebody else and was told my kit would be ready by the end of Jan or early Feb. After asking for the tail components so I could get a start on the thing, on Dec 15, I was assured I would get the tail components soon. Here it is Jan 13th and no tail components.... Anybody going through this? Quite honestly I have been perplexed. If this were not essentially the best design in its class for what I am looking for in a LSA, I would be taking my money elsewhere....oh wait, the money is gone... Was hoping my building experience would be better and I still have hope. Grew up in the back of dad's Vari-eze after being a toddler in the back seat as it sat in the workshop. Dad's on his second now (an RV-7A) and just about to retire. Was hoping to have a great experience building and flying with dad but so far, it has gotten off to a rocky start. Being that I was looking at other designs and re-reading the "no refunds after 14 days" in the contract, are any of you survivors of this similar experience? My garage is barren except for every tool imaginable for the project. Some of that extra room came from motorcycles my wife talked me into selling for this project! Is there light at the end of the tunnel? Thanks, Wade