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  1. F

    Redundant / Failsafe engine control project

    It makes sense to me. even a broken alternator will not fry the electronics. why not? protection circuits can handle voltage spikes higher than that.
  2. F

    Redundant / Failsafe engine control project

    speeduino is not designed for redundancy at all. this will require extensive modifications to the firmware and requires a network of some kind. I don't doubt the reliability of computers when properly protected from electrical spikes and high temperatures. statistics show that the crank sensor...
  3. F

    This how airbus wings attach to fuselage

    Jigless assembly or fly away tooling. The wing attach points seem to have one pair of precision drilled hole. The others are smallish pilot holes. Temporary fasteners are then attached to the holes and final drilled in place. the wing loads are reacted with friction fit between the flanges...
  4. F

    Classic fuselage designe but in carbon fiber tubes?

    Agree I think uni tapes fabric and rovings is stronger when oriented and straightened over a foam core. In a KR for example it’s quiet feasible to use uni tapes for longerons and frames and a thin bid fabric for the outer skin of the fuselage.
  5. F

    Engine Oil Monitoring Device

    https://www.machinerylubrication.com/Read/521/in-line-wear-debris-detectors ferrous and nonferrous particles can be detected by induction techniques and polar contaminants like water and glycol can be detected by capacitance measurement. The cheapest sensor out there is the one fitted on...
  6. F

    Engine Oil Monitoring Device

    An oil condition sensor is an online monitor. It tracks metal debris trends and can signal a warning just before a catastrophic failure in the engine. Either before tackoff or during flight. In latter case The pilot can then turn down power and look for a place to land. Engine conversions with...
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    Engine Oil Monitoring Device

    An oil condition sensor is badly needed for any kind of reliability.
  8. F

    pendulum vibration absorber

    Sorry for reviving an old thread but recent production cars do this already. The PVA is placed on the flywheel to reduce the torque pulses from cylinder ignition. Half VW engines can not use a redrive because the torque pulses shred the redrive which usually is a belt. A half VW can use a...
  9. F

    STOL vs Pocket Rocket?

    you can use more horsepower and high lift devices to make a clean plane takeoff very quickly. it would also help to use a laminar wing with a very wide drag bucket.
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    Tell us what you are building!

    im building a cantilever low mid wing all wood volksplane vp-2 derivative.
  11. F

    aluminum and wood construction

    its broken from testing now, sorry. im building another one. i was in so much hurry i never thought about taking pictures.
  12. F

    aluminum and wood construction

    i actually scaled down the design of the mosquito wing and it worked out ok. i built a test section yesterday and its very easy to build. i only need 16 ribs for the whole wing. they look more like bulkheads now. the entire top skin of the wing is the spar cap. simplifies the spar construction a...
  13. F

    twin boom merits?

    im looking at 6000 miles. i agree it must be twin engined. i want to base it on my current project as much as possible.
  14. F

    twin boom merits?

    good idea! i will actually take a look at the top gliders and check out the specs. but then i need to carry a passenger and some cargo. i might need to to go faster than 170 mph.
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    two throttles center stick or center throttle 2 sticks?

    when flying alone, i want to seat center and use HOTAS. the cockpit is a little bit high and the seating is upright. about 15 degrees over the nose and about 40 degrees over the sides. otherwise, most probably it will be an instructor and occasionally a passenger. my usual passenger usually...
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    twin boom merits?

    thanks for the replies guys i was thinking of my next plane and i want it to be a trans ocean plane. i need something with really high l/d at high speeds. i was reading about the global flyer and its a twin boom. i want to do that the cheapest way possible.
  17. F

    Better Pilots. Nose dragger or tail dragger?

    oh i thought pilots who started out solo in gliders make better pilots ;-)
  18. F

    aluminum and wood construction

    anybody tried this style of construction? Its supposed to be almost as light as carbon fiber construction. at a small fraction of the cost. Aluminum extrusions are cheap nowadays.
  19. F

    two throttles center stick or center throttle 2 sticks?

    im building an occasionaly 2 seater airplane. so which is better? 2 throttles 1 center stick or 1 center throttle 2 sticks?
  20. F

    Cool Air race Video

    in my opinion roundy round racing is more interesting for planes rather than cars. pylon racing has a 3d element to it that is just not present in oval car racing. but if there is some kind of racing that involves air combat maneuvers that would be very interesting...
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