Jabiru? Andy, why of course! I think your point valid, though, where like there's a Europa kit dealer who offers a choice of engines. We don't have that here in the U.S., so it's a builder choice fr
Whatever... But I've seen no accusation that the formulas in Dr. Hoerner's books on aerodynamics are wrong. If say a 80HP Rotax is say 140MPH full throttle down low, then to get to 200MPH will requi
honest 172-175 mph That's more reasonable within the math at that altitude, Glenn. Dr. Sighard Hoerner is again motionless in his grave! ;-) A number of aerodynamic mods individually may have to add
remaking my connectors for the tests I had done somthing good? A Murphy's Law variant says it's much more likely some other Murphy's Law is the cuplprit. However, if a carefully refabricated BNC con
I sure ain't gonna look that up in such an abstruse text, but I seem to recall Hoerner's analyis would support 35% of fuselage drag, not total. What is interesting is that of all the aerodynamic mod
As long as you included the magic word "opinion" [!] the Advanced Aircraft antennas are rather obviously dipoles encased in plastic, using flat strips for elements. There would be nothing inherent i
Hi, all -- The following post appeared on another matronics list. Looks rather useful. Reg, Fred F. -- Rotax Discussion I attended the 7/28/04 8:30am "Rotax 912 and 912S Basic Engine Maintenance" for
At 2:1, you have only 11% loss at the extremes, and 1.2:1 in the middle is excellent. You're dealing with a broadband antenna, so VSWR readings at the ends can only go so low. Reg, Fred F.
Going by only the schematic and the datasheet for the transistor which turns on the lamp -- it doesn't sense any level of voltage, per se. All the lamp circuit reliably appears to do is -- when both
That is conservative beyond comprehension. We're reducing rudder effectiveness by a minuscule amount, especially if properly faired. If the rudder were rendered completely ineffective, turns are unc
That's beyond the scope of the inspector's instructions from FAA, as you can design your own plane. I wonder what FAA thought of Burt Rutan's twin. One engine on the nose, the other on one of the wi
I would be careful with any adhesive tape. Some over a long period of time may become married to the plastic. I think Clint Eastwood, in Dirty Harry, has a line which fits perfectly here! In fact, I
A quick google suggests that "insolvent trading" as a crime is a British thing, popping up also in Australia and NZ, but not in the U.S. However, legal articles outside the U.S. cite that it's typica
terminals. I have reading I get is 0.6 because my A multimeter cannot read super low resistances, and .6 Ohm will exhibit the symptom you have but not necessarily the cause. The simplest diagnostic
the http://www.maddyhome.com/canardpages/pages/waynehicks/chapter_25.htm A quick look says that's usual, bigger microballons than SuperFil uses, and a laminating resin. In my exp, it does not feathe
Concerning an ELT antenna: I just used a length of prepared coax, RG-58, BNC connector on one end end at least (e.g., allelectronics.com, cheap). Separate the shield and center conductor for a length
enough My ELT doesn't provide for that arrangement, nor perhaps do most. A flexible whip attached, a la EBC-102A would be good. Trouble is, it's "G-switch" looks cheap and unreliable. But I otherwis
I just looped heavy propylene rope, couple loops, through the intake manifolds between each pair of cylinders. Close to balance; it needed only a small "picker-upper" rope also up to the hoist to le
backfilling If that or a similar arrangement is desired. However, on production aircraft, FAA has approved drilling a hole in the firewall, inserting a grommet, running the bundle through it, and se
the camera ship. tri-gear's took I believe all we demonstrated here was a drag penalty for that particular tri-gear. If such speed penalty is say 7%, then that will take about 20% more fuel to keep u