Recent content by danmoser

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  1. danmoser

    Sold 2A042 engine, Teledyne mil. surplus, flown on Mini-Max - SOLD

    The 2A042 engine I had for sale has been sold. It appears this thread has turned into an informational resource, moreso than just a classified ad. So maybe it ought to remain on the forum somewhere? admins?
  2. danmoser

    Flying wing as cheap and simple option for basic fun flying.

    The Frankfort Cinema 2-place glider built and flown successfully back in the 40s used two small engines mounted on the struts. This could be a plausible option for motorizing the Marske Monach tailless glider.. Thrust vectors could be aligned in-plane with the vertical CG position, and the prop...
  3. danmoser

    Sold 2A042 engine, Teledyne mil. surplus, flown on Mini-Max - SOLD

    Lynn, Sorry I didn't see your question sooner. I don't have Kevin's prop or know which one he used. Pictures of what I have attached.
  4. danmoser

    Crashes in the News - Thread

    Mid-air collision between Cessna 172 and Sonex Xenos motorglider near Longmont, Colorado, USA this morning. Initial reports of 3 fatalities were updated to 4 dead at the scene.. What a sad event.. see & avoid, people! :(...
  5. danmoser

    What do you think about "e-soaring"?

    After a frustrating search for a BMS that matches a good battery pack, the "build your own BMS" option is something I'd like to explore. Does anyone know of a good source for BMS design recommendations, guidelines, best fabrication practices, things to watch out for? I've got a basic knowledge...
  6. danmoser

    6013-T4 sheet 0.032" thick aluminum, strong as 2024, weldable.

    Sourced from Falcon Aerospace in Florida. IIRC, there is a large minimum order and few thickness choices. https://www.falconaerospace.com/portfolio-item/aluminum/
  7. danmoser

    6013-T4 sheet 0.032" thick aluminum, strong as 2024, weldable.

    Probably somewhat.. sorry to be non-specific. I've been told by aluminum suppliers that if you leave -T4 aluminum out in the hot summer sun for years, it can become less workable, though probably still more ductile than -T6. It's a time-temperature variable range of properties These -T4 sheets...
  8. danmoser

    6013-T4 sheet 0.032" thick aluminum, strong as 2024, weldable.

    True, but these sheets are supplied in the -T4 temper which means they have already been solution treated, quenched, and naturally aged. Artificial aging from relatively soft naturally aged -T4 temper to the fully hard -T6 temper only requires a 350 F oven for a few hours. However, if you heat...
  9. danmoser

    Sold 2A042 engine, Teledyne mil. surplus, flown on Mini-Max - SOLD

    Thank you, it is 801 area code. Mosi progress is slow.. I'll post in an appropriate thread when there's something to report.
  10. danmoser

    6013-T4 sheet 0.032" thick aluminum, strong as 2024, weldable.

    The 0.032" thick 6013-T4 sheet material is still available. Price reduced to $250 for all 4 sheets, 48"x72". I also have 3 cylinders rolled from these same sheets, 48" long x 20" diameter. $150 for those. Call Dan at (801) 502-4379 if you have any questions.
  11. danmoser

    Sold 2A042 engine, Teledyne mil. surplus, flown on Mini-Max - SOLD

    I still have this flight-proven 2A042 boxer twin engine in nice condition, and no use for it. It's time to clear out the shop to focus on other projects. Price reduced to $400 plus shipping from Salt Lake City. I'd like to sell it to someone on this forum who has a good home for it. If not...
  12. danmoser

    What do you think about "e-soaring"?

    True. But my point was that the longer span is essential in reducing the induced drag, and therefore increasing the flight duration. A short span biplane may produce the same amount of solar power as a long span monoplane, but the power required for level flight will be much higher for the short...
  13. danmoser

    What do you think about "e-soaring"?

    After running the numbers on this design, the 22m span is actually essential for the duration of the craft... 22m provides much lower induced drag .. and min. power required for level flight. I think the SunSeeker is able to sustain flight without using battery power if the sun is overhead...
  14. danmoser

    Kite/Wings

    Good to see my old pal OneSkyDog on the forum! ;) For a long time, I've been wanting to improve flexwing control to avoid the zero/negative G loss of control issue, as well as improve safety, comfort, and overall control authority. As with motorized "trikes", a rigid but pivoting connection...
  15. danmoser

    What do you think about "e-soaring"?

    Glass panels last a long time, but are generally too heavy & rigid for aircraft use. The trade-off is using lighter, flexible panels that don't last nearly as long... speaking VERY generally. But new technology will give us better options eventually .. in the meantime, we are stuck with trying...
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