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Bob Eisenman

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About Bob Eisenman

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    Veteran Member
  • Birthday October 5

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    Male
  • Location
    Salem, MA

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  1. Bob Eisenman

    FPV drone racing

    The surprise of this racing drone's flight was hard to describe. Hard to see (small), relatively quiet, uniquely acrobatic, tightly controlled with maximum use of space and obstructions (trees) to demonstrate ability and confidence. The drone pilots use of space was 5 ish miles from Boston's Logan airport. GPS 42.41065108,-71.06836 https://earth.app.goo.gl/?apn=com.google.earth&ibi=com.google.b612&isi=293622097&ius=googleearth&link=https%3a%2f%2fearth.google.com%2fweb%2f%4042.41065108,-71.06836746,0.42935148a,1002.46640226d,35y,316.78179572h,0t,0r The field used was about the size of a football field plus the use of some space in the adjacent parking lot. Vertical use of space was perhaps less than 200 feet. The drones lowest altitude and flight path was about eye level including roll manuvers. Use of vertical space was a kind of 'hammerhead' move by the pilot (ascent..depletion of velocity, roll 180, descent, pull out to level flight). https://goo.gl/images/rcRsUL Over the weekend (different day than the drone sighting) I had ridden my Monster from my apartment to the passenger terminal at Logan, passing through Winthrop and past 'Bob's bait shack'. The striped bass are in season and some devoted anglers dotted the coastline at various fishing hot spots along my route. At the bridge between Winthrop an Boston you can see the northern end of runway 4R https://earth.app.goo.gl/?apn=com.google.earth&ibi=com.google.b612&isi=293622097&ius=googleearth&link=https%3a%2f%2fearth.google.com%2fweb%2f%4042.382717,-70.99439194,8.28187752a,0d,60y,205.61528598h,81.95903803t,0r%2fdata%3dCgAiGgoWS0tHTVh0WGlmZEJNUERueGk0cW9ndxAC A huge passenger jet (747_400?) had landed. My EUC travel time from that point to the Logan terminal passenger entrance where I turned around and headed back was coincident with the amount of time required for the large jet to taxi-hold-taxi, etc. on to the terminal (turning 180 degrees in two separate 90 degree turns). It's a REALLY BIG passenger jet. Hundreds of passengers. https://goo.gl/images/DTRs7N
  2. Bob Eisenman

    FPV drone racing

    I looked around the internet for drone flying info last week: for fun use: 1- drone must be registerd 2- drone must stay under 400 feet 3- a 5 mile zone around airports is off limits without approval from the airport some Massachusetts laws including an app link for finding flyable places: https://www.mymassachusettsdefenselawyer.com/massachusetts-drone-laws/ A photo opp for photographing 'basking sharks' off the local coast is , as you said, entirely different:
  3. Bob Eisenman

    FPV drone racing

    firstly: I don't fly drones and never have. secondly: I once commented on the forum that 'they are all motor' Well....I was riding my Monster on a trail in Everett and heard a buzz of a drone flying overhead. I would say that the flight resembled the one in this video. I was amazed at the amount of space used, the speeds attained, the short turning radius and other drone specific maneuvers that the drone pilot (unseen) could perform. http://racingfpv.com/
  4. Bob Eisenman

    Mechanical Braking for EUCs

    Why not give up the downhill on a bike path on an EUC on Stowe Mtn idea ?
  5. Bob Eisenman

    Wildlife encounters

  6. Bob Eisenman

    Charging Strategy - Levels and Frequency

    http://batteryuniversity.com/learn/article/do_and_dont_battery_table There are lots of charge related sources of information for lithium ion batteries on the web. This table is one of the more concise.
  7. Bob Eisenman

    Charging Strategy - Levels and Frequency

    Once again...100% every time...nothing to hide in my plan.
  8. Bob Eisenman

    Charging Strategy - Levels and Frequency

    Since the Monster was purchased in the Nov. and used all winter the increased summer range to 40 or more miles & 10% battery, I have no other hot weather for range comparisons. My Ninebot One E+ log is about 300 entries for about 8,000 km https://drive.google.com/folderview?id=0B07we0osMR1zc1dhaTZfVTd4Q2c
  9. Bob Eisenman

    Charging Strategy - Levels and Frequency

    I have at least 140 charge sessions to 100% on my Gotway Monster. I log my rides a bit different from @Marty Backe but admit to admiring his log book entry simplicity. I've read about Charge Doctor and fears about not using it to preserve battery performance. BUT: I'm not worried about changing to 100% with the supplied charger from any charge level.
  10. Bob Eisenman

    Charging Strategy - Levels and Frequency

    I used to build and fly gliders (2 meter Gentle Lady and others) I made the Ekectra (Gentle Lady + motor) when nickcle metal hydrid batteries were popular. The non powered were surgical tube + line launches. The weight of the battery and motor in the powered glider left me feeling uneasy about flying it since it was heavy. I flew mostly alone and not at a designated strip. Most areas were tight to fly in. One glider (Ninja) I made was for 'slope soaring' as advertised for people in California. The wing was designed to fly fast. Since no slopes of equivalent size and wind conditions exist around where I live the glider never really found its place for soaring. Perhaps that is why it is the only glider of several that I built that never required 'crash repair'. I wonder if an EUC rider could be used to tow powerless gliders on a tow line? When I sold the house where I lived a few years ago only the 'Ninja' glider (not pictured) left with me. There is a flying field in a salt marsh Revere , Mass off a busy highway, perhaps a remnant runway from WWII. Drones look like fun despite being 'all power and no wing' plus options for flying transmitted point of view but the restrictions make places to legally fly hard to find. I watched a Duff video where he described being prosecuted and fined for drone flying in a National Park. My nickle metal hydride batteries had a quick charger that must have weighed a few pounds. I never worry about charging my Ninebot One E+ or Gotway Monster batteries to 100% from any charge depletion level. With small brushless motors running on lithium ion batteries for self launching gliders bring the total cost and weight down I got a little excited recently reading about an glider with a retractable/deployable motor pod running about $125 (foam wing ready to fly). My first model plane ran an 049 gas engine (full throttle...& loud) on a small control line model. I don't think I made it around the circle once before over controlling it and crashing into the dirt in the 1960s.
  11. Bob Eisenman

    Wildlife encounters

    In the last two weeks (in Massachusetts) I've seen two large (adult?) female deer. One encounter was mid afternoon as it stood next to a field of growing corn (I caught a glimpse of it while rolling by on a road) and the second deer encounter was one standing next to the woods along an old rail road bed in the late afternoon. The deer (white tail showing as it bounded off) next to the woods was timid, jumping off into the woods as I slowly moved towards it. https://www.the-whitetail-deer.com/Whitetail-Deer-Doe-3.html "During the summer time, you'll usually find the female whitetail deer in the thick forests, since there is plenty of food to be found there in the summer. Also, not only do the thick forested areas provide plenty of food, but they also provide safety and shelter from the summer storms that tend to occur." There have been several heavy rain storms with thunder and lightning. The information in the quote seems to apply. On a hot afternoon a black snake crossed in front of me over an old railroad bed. Perhaps a 'black racer' or a 'black rat snacke' of length several feet. http://www.masnakes.org/snakes/black_rat/
  12. Recently I'd been making the Plum Island airport my destination for long range rides on my Gotway Monster. More recently than that a news story made the news headlines. A pilot from Maine had overshot his landing and veered off the runway , coming to a stop in the bushes and trees beside the Plum Island airstrip. http://www.msonewsports.com/newbury-fire-department-responds-aircraft-goes-woods-plum-island-airport/ TV and the online newspaper media posted reports of the incident, showing the planes tail number clearly as it and the tail remained sticking half way 'out of the woods'. I went to the website 'FlightAware' and checked for information on that tail number. Corresponding to the news media's information about the time of the landing attempt there was a last flight entry for the aircraft. However , the 'nearest airport' for the landing, with takeoff originating in Maine, was Beverly Airport. Beverly airport is a modern Multi runway airport, Plum Island is a less used single runway airport and each are separated by a goodly number of miles. The option to report discrepancies in the posted flight information for the 'crashed landing' was dependent on enrolling as a member with FlightAware. After creating a login profile I forwarded the news story about the Plum Island bad landing in a note to FlightAware, noting that their posted 'nearest airport' for the landing attempt was not true. Yesterday a newsletter from FlightAware arrived in my mail box. The link led to a story about a WWII pilot (19 years old as a new pilot) whose B-17 bomber and crew of ten was shot down over France. He escaped to Switzerland after his parachute landing in France. In his 90s now he remains the last member of the crew who is still alive. A book 'Coffin Corner Boys' describes the ordeal and a review of the book can be found at the URL https://www.publishersweekly.com/978-1-62157-626-6 The book is found on Amazon (Kindle) https://www.amazon.com/Coffin-Corner-Boys-Harrowing-Nazi-Occupied-ebook/dp/B06XZ1SPZJ/ref=mp_s_a_1_1?ie=UTF8&qid=1531019987&sr=1-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=coffin+corner And sections of the book can be read from 'Google books' https://books.google.com/books/about/Coffin_Corner_Boys.html?id=afuTDgAAQBAJ I read the Google books part where he jumps out of the plane, before a wing shears off of the B-17, and is plummeting (freefall) above the clouds before deploying his chute. It looks like an interesting read.
  13. Bob Eisenman

    THE VIDEO THREAD!

    yep
  14. Bob Eisenman

    THE VIDEO THREAD!

    The 4th of July Fireworks in Boston attracts thousands of people. I worked in Boston for a sixteen year period and associate Boston with 'the place to be' on the 4th. I've attended Boston's fireworks displays several times over the years. Using public mass transit the last time left me missing 'the last bus' on the end of the subway connecting to my hometown 10 miles farther away. This year I decided to try commuting both ways on the Gotway Monster. I took this video of the fireworks by mounting my Activeon CX Gold action camera in 'night mode preset' onto a gimbal (two axis tracking) attached to my helmet. The video was cropped to about one quarter of the original screen display. BTW...before darkness set in there was another Gotway rider (no helmet..no pads) navigating (he passed by [2x] the other side of the road where Monster and I were parked) his way along the not to crowded street before the really large crowds arrived.
  15. $50 at Micro Center 1 TB USB3 external HD (Western digital) My gigabytes of 360fly video, Action Camera video and limited HD space on my laptop convinced me that it was time to consider moving the GB of video to an external HD. The extra freed up laptop drive space can be used to more efficiently run programs. I'm not in to the cloud storage stuff so this option works for me and fits into my laptop bag.
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