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Touring Motor Gliders Association (TMGA)

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  1. Last week
  2. Hi Martin, Love the Phoenix and love the idea of electric propulsion. How practical do you think it might be to retrofit a Rotax powered Phoenix with electric propulsion sometime in the future (like TBO)? Thanks, and all the best with new developments Tim P.S. Apologies for hijacking an existing topic!
  3. Earlier
  4. Power for a camera on the tail

    Gents, you might like the VIRB camera by Garmin. You can pick up the VIRB elite cameras very cheaply now since they are no longer the latest model, but they function very well and offer the advantage of altitude, speed, and route info on screen from the unit's own internal GPS. They can be managed from a smart phone. A Garmin cable interfaces with your headset and the camera to block out engine noise if desired. It's internal battery gives long run time. The free software, VIRB Edit, is ok for video pudknockers like me but not a world beater...quite simple to use though. I have put a suction cup mount on the interior canopy with good results and have now mounted 2 stick-on base plates for the camera's cradle on top of the glare shield. In that way 2 cameras can be looking at different views. Next spring I'm going to make a camera mount rig to screw into the wing tie down hole. The editing software allows for rotating the image into the upright position. Attached see clip from flight from Princeton, NJ to Bar Harbor, ME. In this one I have the camera in my hand and show the mount. Note the sophisticated airconditioning unit and controls in right canopy vent. VIRB_39n_to_bar_hrbr1.mp4
  5. Power for a camera on the tail

    I just mounted the camera slightly to the right of the canopy latch plate, on the canopy sill (fuselage, not the canopy). I can run power to it from the power socket on the right side of the shelf. It will take a flight to know if it can see the panel well enough. I'm using my iPhone to control it and monitor the video. The iPhone is mounted on top of the ClearNav flight computer, where it's easy to see. The next location I try will be under the gear or cowling, withe field of view (FOV) set to 70 degrees, which I hope will let me see dust devils as I approach them. My FauxPro does not have an audio input, just HDMI and USB connectors, so I can't use the NFlightcam cables you did. The camera's microphone will pick up the vario, and if I continue to use the cockpit location, I'll mount a small speaker next to the camera's microphone, then run the intercom output to the speaker.
  6. Power for a camera on the tail

    Hi, Eric - Here's an alternative idea. I think it's worth considering what you want the videos for before choosing a mounting spot. To be honest, I don't really care for the tail and wing mounted videos all that much. The great value I see, as an educator, is being able to replay a flight and think about what I might have done differently if I could do it over. The videos that I like the most are those with in-cockpit visibility of the instruments and, even better, a narration to capture the decision making processes by the pilot. Bruno Vassal has several of these as good examples of ride-along teaching videos. Here's how I mount my GoPro. It uses 2 RamMount items that mount to the canopy at pilot eye level, just near the canopy handle. I also use a cable from Nflightcam which allows audio from the headsets and extra power from a USB battery pack. Note, however, and Nflightcam is very clear about this, you cannot use ship's power, only a USB battery pack. I spent several hours trying to filter the onboard DC with all sorts of audio transformer filters, and it is just impossible to remove the whining ground loop. I don't know of anyone who has successfully done this, but since I'm just a ham radio operator and you're an official electrical engineer, you may have more luck. Here's a video snippet of practicing a no-spoiler approach to let you see the angle. The camera is mounted midline. I've since moved it to the right a bit. Ed GoPro test.mp4
  7. Power for a camera on the tail

    My "FauxPro" (GoPro knockoff) only lasts about 40 minutes with the Wifi on, thus the interest in external power for a tail mount. Running a cable for power sounds problematic, so a battery at the tail is a better choice. The battery type I'm thinking of using is the "phone charger" style: a Li-ion battery with USB outputs and is available in 3000-10000 mah capacity. A 5000 mah one is smaller than an iPhone 6, weighs about 4 oz, and should run the camera continuously for about 7 hours, unless it's really cold. The camera could be mounted on the battery, and the assembly taped to the tail for a total weight less than 10 oz. That should be safe enough, and I'd use my iPhone to view and control it. Here's a link to the kind of battery I'm considering: https://www.amazon.com/dp/B01KUVLMPK/_encoding=UTF8?coliid=I127X0AGTNSKNR&colid=2RMXPWCF0XLLG
  8. Power for a camera on the tail

    The GoPros offer 2 hours of battery use or 1 hour if the wifi is turned on. Andres Fernandes and I flew from Key West to Columbia, making about 5 hour legs. Andres mounted a GoPro on the wingtip and controlled it from his iPad in the cockpit. He was able to turn it on and off as desired during the 5 hour flights. So with the right equipment, I don't think you will need additional power unless you are doing a very long video. Urban Air put a battery in the tail which could have been a factor in the broken tails of the Lambada. Phoenix Air decided this was not worth risking in the Phoenix. The tail battery produces a large moment arm which can cause additional torque to the tail in a tail strike or flutter situation. I don't think they will approve a battery in the tail. A wire can be run to the tail but it will involve drilling a hole in the internal tail bulkhead. You would have to remove the rudder to access the bulkhead and drill the hole and run the wire. There have been two cracked bulkheads, so this is a very critical structural component. I don't know if Phoenix Air will approve drilling a hole in the bulkhead or not. You can see some of the factory videos with a GoPro mounted on the tail of the Phoenix, so obviously they see nothing wrong with doing this. But the camera did not have an additional battery or wiring. Your best bet is probably just to go with the adhesive stick on mounts which stick on so well that they sometimes must be cut off with fishing line, and control the camera remotely.
  9. I want to mount a Go-Pro style camera on the tail of my Phoenix, but there isn't any power back there to power it. What's a good way to get power to it? Running twisted pair or a shielded pair to the tail somehow would be ideal, but may be awkward. Another thought is USB output power pack of 1000 mAH or so that could be secured in the fin, with a cable coming out under the stabilizer that a charger or the camera could be plugged into. In the meantime, I'll try the camera on the dash, looking over the compass, and perhaps under the canopy sill near the canopy latch, or under the fuselage on the gear (a flat USB cable could be run out the the right side from a USB charger in the power socket).
  10. Taifun Flight Training

    Dear Members: I'm in the final stages of completing the restoration of Taifun 17E II. I will require dual flight instruction prior to my initial test flight, as its been some time since I last flew the Taifun. My ratings include SEL Private, Comm Glider, and CFIG. Is there an owner or CFIG on the East Coast who would be willing to provide instruction in the Taifun? I'm located in the Philadelphia area. Best Regards, Gil Frost
  11. Vario

    Go all the way and fit an LX8000 or LX9000. Excellent navigation tools for gliding or occasional gliding, especially compared with iPad versions. I use an iPad in my Ximango and while it works OK as a navigational tool, especially if the weather is not too hot and it shuts down, but it does not offer more than a fraction of the information you get on a glide computer. I have an LX8000 in my glider and it's brilliantly easy to use.
  12. Ballistic Parachute Repacking

    Just received the parachute back from Stratos 07 this morning. Total round trip time was a little more than a month. The chute has an updated repack label and they included a new Kevlar bridle at no extra cost. Dennis Carly stepped in to batch the payment to Stratos 07 so I didn't have to do an individual wire transfer, but the chute was delivered to my door via FedEx direct from the factory. I am just awaiting the invoice from Dennis which I can pay in USD, so things are essentially done. My plane is exceedingly happy.
  13. SunDancer 696SD

    Changed my N to 588V

  14. durable covers for phoenix

    Hi Ed, I keep my plane hangared for the entire year and do not have information on how they will hold up. I originally intended to use them for a month or 2 when I kept my plane outside when I took extended trips but haven't done this yet. When I emailed the manufacturer in Czechoslovakia they said they should last about 2 years depending on the climate with exposure 24/7. They cost about $750. and they were a full set of covers. The fit is superb and the fabric feels durable. The canopy cover attaches with straps. Go to http://www.planecover.cz/kontakty_en.html Hope this helps. George
  15. Vario

    I am building a Sonex Xenos motor glider. I am at the stage where I am starting wiring. I have an MGL Discovery Lite EFIS. I am looking for recommendations on a vario. I was thinking along the lines of Lxnav S8. Thoughts? BV
  16. ADS-B Out

    Got mine factory installed when I ordered my Sinus Dec 2015 with Dynon avionics. It is really nice in busy airspace to be able to see, on screen, where other ADSB-equipped aircraft are. Hope I don't let down on AIRUSA while he's hidden in that big blind spot under the nose. How much is your life worth?
  17. S6 and S12 Reviews

    Has anyone experience with either the S-6 or S-6 Retractable Gear, or the S-12 airplanes? Am considering changing from my Phoenix to a Stemme and would like to discuss the airplanes. Thanks. Alan
  18. ADS-B Out

    I installed an NGT 9000 Lynx transponder in May 2016 in my Diamond HK 36 TTC. After installation problems caused by being the avionics shop's first install and, likely, the first motorglider they'd ever seen, I have been very happy with the box. Being on the fringes of the LA airspace, I feel safer with better situational awareness. I use it for TFRs and weather infrequently.
  19. Ballistic Parachute Repacking

    Ed, Thanks many times for sharing this and your other advisements, greatly appreciated.
  20. Ballistic Parachute Repacking

    I just got an invoice from Stratos 07 for the repack. The good news is that they did it faster than I had anticipated, the bad news is that they want it paid by a bank transfer. The final invoice was for 420 euros (about $500 including return shipping). I went to my bank and found out that wire transfers have all sorts of hidden costs, and the total was going to be $75. Not only does the originating bank charge a fee, but also any intermediary bank along the transfer. The banker said that he felt that was way too high for such a small payment, and he advised that I ask the company for alternatives. They do not do credit cards or take checks, so we're stuck. I decided to call Dennis Carly, owner of U-Fly-It, the Magnum US Representative in Deland FL, and ask his advice. After telling him the whole story, I was able to negotiate with him a service option whereby he agreed to be the contact point for all US Phoenix parachute repacking transfers. He is moving parachutes back and forth from Stratos frequently enough that there will be minimal delays, and he has agreed to accept our chutes to become a part of batched orders. This is probably the most cost-effective process since he has shipping and factory discounts that he will pass on to you. He also has appropriate processes for dealing with the rocket when that comes due at 12 years. Finally, he agreed to handle payments by check so that we don't have to deal with the wire transfers. I believe he will be the best option going forward both for shipping and payment. BOTTOM LINE: Just call Dennis when you need to do this.
  21. ADS-B Out

    I want to use the ATC system as fully possible, means everything accept Class A. I have a certified L13 Vivat, which means experimental options are not available to me. I currently have a KT76A transponder and so am particular interested in solutions that work with it. The Skybeacon by uAioni is a very interesting possibility, especially as it might be available for certified aircraft early in 2018. The Skybeacon is a retro fit system that replaces the port navigation light
  22. ADS-B Out

    For now if you not live in a place where mode c is required, then there is no need. However it does limit your travels in the future. The other day I saw a red wing tip clearance light that is a nav light and ADS-B out and is suppose to be legal for when the time comes. $1900. By 2020, they should began to be price at about a dime a dozen. Just going to wait it out. It gets cheaper by the day.
  23. ADS-B Out

    Those of us with the Dynon SkyView system will (or have) replace the original GPS with a compliant unit for about $500, and we're done!
  24. ADS-B Out

    Would be interested in hearing how other members are planning to meet the FAA requirements in 2020
  25. durable covers for phoenix

    Hi, George - I was wondering if you could give a follow up report on the Phoenix covers you bought last year. How are they holding up? What was the total cost, including shipping? Were they just wing covers or a full set? Did they come with any expectation of how long they’d last? How do they fasten to the aircraft and each other? Thanks for your help. Ed
  26. Thank you, D.B., that was useful.
  27. Phoenix 912 engine loses 500 rpm during climb

    I and another pilot spent several hours a week ago, testing things and doing WOT run-ups, and the only thing we found was a speck of what looks like red rubber (like the red rubber on the hose insulation) in the left float bowl. The run-up after that was perfect - no rough running, no RPM sagging. The next two day, I did another full power runup, a takeoff, and two 5 minute, full power climbs; the following day, I flew a two leg, two hour total trip to another airport. During the runup, climbs, and the out and return flight, the engine performed smoothly just like it did for the first 450 hours. So, I'm persuaded it's fixed, but I'll be extra cautious for the next few flights, keeping an airport in easy reach while flying.
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