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#71
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Your interpretation of the FARs is incorrect. To be compliant with
Part 103 the basic weight of an unpowered ultralight vehicle (FAA wording not mine) must be less than 155lbs excluding safety equipment. What is safety equipment? My interpretation is radio, transponder, battery for such, ballistic parachute, necessary instruments for safe flying (altimeter, air speed indicator, vario etc.) and oxygen and so on. This brings the weight of my SparrowHawk up to about 195 lbs. This actually makes sense when you think about it. You wouldn't want to discourage the use of safety equipment. The other weight issue is the max gross weight set by the manufacturer which includes the pilot weight etc. With me flying the SparrowHawk I am below that limit. As I posted previously the US FARs are out of date in many important areas. If this subject interests you, check on the ultralight and glider rules and regs in other countries around the world. What you will find might surprise you. Dave You wrote: I went to the Sparrowhawk web page where it shows the empty weight as 155 lbs. Are you saying that with a transponder, radio, batteries and oxygen system installed the Sparrowhawk still weighs only 155 lbs? |
#72
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Alastair Harrison wrote:
Forgive my ignorance, but why are the reports written in that compressed style and missing lots of vowels? And even worse, all caps. Damn, it's known that there's nothing more illegible than a text in all caps! |
#74
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On Jan 11, 1:03*pm, Nyal Williams
wrote: Methinks you are treading on thin ice with the phrase 'my interpretation.' ... I concur, very thin ice indeed. According to 14CFR part 103.1: **************begin paste from ecfr.gpoaccess.gov ************** § 103.1 Applicability. This part prescribes rules governing the operation of ultralight vehicles in the United States. For the purposes of this part, an ultralight vehicle is a vehicle that: (a) Is used or intended to be used for manned operation in the air by a single occupant; (b) Is used or intended to be used for recreation or sport purposes only; (c) Does not have any U.S. or foreign airworthiness certificate; and (d) If unpowered, weighs less than 155 pounds; or (e) If powered: (1) Weighs less than 254 pounds empty weight, excluding floats and safety devices which are intended for deployment in a potentially catastrophic situation; (2) Has a fuel capacity not exceeding 5 U.S. gallons; (3) Is not capable of more than 55 knots calibrated airspeed at full power in level flight; and (4) Has a power-off stall speed which does not exceed 24 knots calibrated airspeed. **************end paste from ecfr.gpoaccess.gov ************** Note that there is indeed an exception to the 254 lb empty weight for powered ultralights, and that it applies to floats and certain "safety devices." However, note also that: * The empty weight exception allowed by 14CFR103.1(e)(1) applies to the 254 lb empty weight of powered ultralights, but does not apply to the 155 lb empty weight of unpowered ultralights. * The "safety devices" that 14CFR103.1(e)(1) allows in addition to the empty weight is explicitly limited to those "which are intended for deployment in a potentially catastrophic situation." Thanks, Bob K. |
#75
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Bob Kuykendall wrote:
On Jan 11, 1:03 pm, Nyal Williams wrote: Methinks you are treading on thin ice with the phrase 'my interpretation.' ... I concur, very thin ice indeed. According to 14CFR part 103.1: **************begin paste from ecfr.gpoaccess.gov ************** § 103.1 Applicability. This part prescribes rules governing the operation of ultralight vehicles in the United States. For the purposes of this part, an ultralight vehicle is a vehicle that: (a) Is used or intended to be used for manned operation in the air by a single occupant; (b) Is used or intended to be used for recreation or sport purposes only; (c) Does not have any U.S. or foreign airworthiness certificate; and (d) If unpowered, weighs less than 155 pounds; or (e) If powered: (1) Weighs less than 254 pounds empty weight, excluding floats and safety devices which are intended for deployment in a potentially catastrophic situation; (2) Has a fuel capacity not exceeding 5 U.S. gallons; Anyone know why gliders are limited to a lower empty weight than the power guys? Sounds logical at first, but doesn't make a lot of sense when you consider that 99 additional pounds can be concentrated into a chunk of whirling hot metal, and another 35 lbs of additional permitted weight is in the form of an extremely flammable liquid (hooked to the hot chunk of metal). Just wondering, is there a good, by FAA terms ;-) explanation? The Sparrowhawk seems to really push the weight reduction limits (e.g. custom wheel brake and tow hook). Think of what the glider industry could do with 250 lbs of relatively unregulated glider to mess around with! Here's to dreaming... (3) Is not capable of more than 55 knots calibrated airspeed at full power in level flight; and (4) Has a power-off stall speed which does not exceed 24 knots calibrated airspeed. Also, Windward's website shows a stall speed of 32 kts for the Sparrowhawk. Different rules for gliders here too? Shawn |
#76
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Bob Kuykendall wrote:
On Jan 11, 1:03 pm, Nyal Williams wrote: Methinks you are treading on thin ice with the phrase 'my interpretation.' ... I concur, very thin ice indeed. According to 14CFR part 103.1: **************begin paste from ecfr.gpoaccess.gov ************** § 103.1 Applicability. This part prescribes rules governing the operation of ultralight vehicles in the United States. For the purposes of this part, an ultralight vehicle is a vehicle that: (a) Is used or intended to be used for manned operation in the air by a single occupant; (b) Is used or intended to be used for recreation or sport purposes only; (c) Does not have any U.S. or foreign airworthiness certificate; and (d) If unpowered, weighs less than 155 pounds; or (e) If powered: (1) Weighs less than 254 pounds empty weight, excluding floats and safety devices which are intended for deployment in a potentially catastrophic situation; (2) Has a fuel capacity not exceeding 5 U.S. gallons; Anyone know why gliders are limited to a lower empty weight than the power guys? Sounds logical at first, but doesn't make a lot of sense when you consider that 99 additional pounds can be concentrated into a chunk of whirling hot metal, and another 35 lbs of additional permitted weight is in the form of an extremely flammable liquid (hooked to the hot chunk of metal). Just wondering, is there a good, by FAA terms ;-) explanation? The Sparrowhawk seems to really push the weight reduction limits (e.g. custom wheel brake and tow hook). Think of what the glider industry could do with 250 lbs of relatively unregulated glider to mess around with! Here's to dreaming... (3) Is not capable of more than 55 knots calibrated airspeed at full power in level flight; and (4) Has a power-off stall speed which does not exceed 24 knots calibrated airspeed. Also, Windward's website shows a stall speed of 32 kts for the Sparrowhawk. Different rules for gliders here too? Shawn |
#77
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Philip Plane wrote:
I wouldn't say 'cannot', but on my DG1000 the brakes are hard to get on and off the overcenter lock at high speed. Due to wing flex I expect. Hard enough that I have done a high speed final glide holding the brakes closed because I couldn't get them locked. 'High speed' would be something over 100 knots. I noticed the same thing in a Libelle 201 when I tried using the brakes at high speed. So all of that begs the question, "Did you reduce the load on the wings momentarily in order to reduce the flex, and therefor lighten the force necessary to change your configuration?" This stuff _may_ be rocket science, I wouldn't know--never having been in a rocket. Jack |
#78
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John Smith wrote:
Actually, the term is absolutely correct and not a stupid choice at all. In class E airspace there is IFR traffic on an IFR clearance. So that airspace *is* controlled. For IFR traffic, anyway. The AIRSPACE is not controlled there or anywhere else (outside of certain restricted areas where the control can be, shall we say, very positive). The TRAFFIC is controlled. Jack |
#79
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J a c k wrote:
So all of that begs the question, "Did you reduce the load on the wings momentarily in order to reduce the flex, and therefor lighten the force necessary to change your configuration?" This stuff _may_ be rocket science, I wouldn't know--never having been in a rocket. When I played around to test the loads I flew straight and steady in smoothish conditions. When I descended the DG1000 from the wave through the rotor and low level turbulence the wings flexed both ways. It didn't make it any easier to lock the brakes. -- Philip Plane _____ | ---------------( )--------------- Glider pilots have no visible means of support |
#80
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I'm sick of sanding this DG and it's still several hours before the
Packers start beating up on the Sea Gulls, so let me tell you a little story about busting the PC. We were on an low level VFR route in the RF-4C, early in out training that offered an all expence paid vacation to Cong's Ville upon graduation. We hit a couple of targets out in the desert and then the route took us into the mountains north of Mt. Home, ID where we encountered a solid deck about 2000 above us. We pressed on and soon were rapidly painting ourselves into a corner (box canyon). I told my pilot; let's forget this and get out of here! He replied; I don't have clearance to enter the clouds. Allow me to state here that the 1/lt Nose-Gunner, the Air Force issued me was long on regulations and short on judgment! Soon we were in real trouble, 100 feet off the pine-cones and 100 feet below the clouds.................................at which time I yelled, Screw the clearance, CLIMB. We did and finally got hold of center at 10,000 feet. Did we endanger anyone? Did center even know we were in the soup? Was there anyone else, dumb enough to be flying low in the WX, near the rocks? Did the original poster endanger anyone by busting the PC over Reno? He had a transponder and all the folks up there had one too + TCAS and besides the safest place to be is 18 right over the Reno. The dangerous place is 9 to 12 thousand at 10 to 20 miles out. Center was painting him and would/could have diverter any potential conflicts. I don't think anyone was endangered, except he could have pulled the wings off by foolishly trying to stay below 18. Remember, a 26 driver did just that right over Reno and endangered himself and those on the ground with falling pieces of fiberglass. I say he did the right thing. Now the rest of us, If you fly around Reno...........get a transponder! OK, rant's over, bring on the Sea Gulls! JJ |
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