RE: PLEASE HELP! :) Building avlarons into a solid wing! :)
Think those hinge on the ends and not along the edge.
Posted on: 6/1/2007 12:39 AM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5929049

RE: Kinko's , Uugghhh!
"Kinkos digital copies" are actually a tiff file of a raster scan at a given pixel per inch setting. I strongly suggest calling around your area to other graphics services (formally blue print shops) and seeing what alternatives you have to Kinkos. Can't be any more expensive than Kinko's! Try calling some of the local architects and asking where they get their drawings printed.
Posted on: 6/1/2007 12:37 AM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5929041

RE: CA shelf life
Get a large plastic jar full of mixed nuts. Eat the nuts. Go to the crafts store and get some of the fine grain silica gel crystals for drying flowers. Clean the jar, put about a half inch of the crystals in the bottom, put your open and capped bottles of CA into the jar and somewhat into the gel. Put the lid back on and sit the jar on a shelf in your work room. I have three open bottles that have been in such a jar with the crystals and I can still take out the thick or the thin and use it. Flows just like a new bottle.
Posted on: 4/19/2007 12:22 AM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5738122

RE: FREE LASER CUTTING
Interesting.
Posted on: 3/26/2007 9:42 AM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5618043

RE: difference in wing shapes
Wing area distribution (shape) and dihedral on rudder/elevator sailplanes does have various effects on maneuverability. Too much polyhedral can make the sailplane too stable. Not enough and you can't turn it with the rudder. Weight and airfoil will affect performance. A thick airfoil on a light plane will make it slow. A thin airfoil on a heavy sailplane will hurt the distance to altitude ratio. All factors need to be considered when designing a polyhedral rudder and elevator RC sailplane.
Posted on: 3/22/2007 7:17 PM by Author "SoCal GliderGuider" in the forum "RC Gliders, Sailplanes and Slope Soaring"
http://www.rcuniverse.com/forum/fb.asp?m=5602096

RE: How to secure these wings?
Make a 'T' handle out of 3/32" music wire that has a small hook at the base of the 'T'. Stick the hook through the slots. Put one wing on and triple fold a large rubber band between the hook in the wing root and the hook on the T handle. Pull the T handle through pulling the wing against the fuse. Turn the T handle 90 degrees to the fuse to keep it in place and slip the other wing on. Use the T handle hook to transfer the loops of the stretched rubber band to the hook on the second wing. The rubber band tension should pull the second wing against the fuse.
Posted on: 3/20/2007 8:42 PM by Author "SoCal GliderGuider" in the forum "RC Gliders, Sailplanes and Slope Soaring"
http://www.rcuniverse.com/forum/fb.asp?m=5592346

RE: Spectra ARF Wing Joiner Needed
Replace the whole thing with a steel rod, brass tubing and plywood or hardwood wedges.
Posted on: 3/20/2007 8:30 PM by Author "SoCal GliderGuider" in the forum "RC Gliders, Sailplanes and Slope Soaring"
http://www.rcuniverse.com/forum/fb.asp?m=5592265

RE: 400 feet limit?
[quote]ORIGINAL: twtaylor I've seen gliders over 200 mph, (think hot liners). [/quote] The only pure sailplanes I've seen over 200 are dynamic soaring on remote ridges with just a few spectators besides the pilot. Hotliners are NOT sailplanes. [quote]ORIGINAL: twtaylor Had I been on that council there would be NO flying there if it's as populated as you claim. Getting the gov involved is almost never a good idea. [/quote] And ignore the 30 plus years pure sailplanes have used the park safely? In contrast to four known power plane caused injuries to non-fliers in the last year. One requiring a trip to an emergency ward and stitches. [quote]ORIGINAL: twtaylor I don't give a "doo doo" what you do in CA. I care about what happens anywhere that might have an affect on me and my flying. I too fly at a field that is limited to 400' and you're right it's unenforceable. The fact it's "unenforceable" doesn't mean the city/county won't put a stop to flying where we are, next to an air force base. Rather than try to buck the system and fight a losing battle to which there would be no good end. I opted to do what was best for me and my flying buddies and buy a field in the middle of no where. I've seen clubs torn apart by one person that tried to "Buck the system". [/quote] How do you know what altitude you are flying at? Answer: You don't! How does a controlling authority know what altitude you are flying at? Answer: With a very expensive helicopter and a calibrated radar altimeter. How many times will someone cry wolf getting the very expensive helicopter to check a models altitude before the helicopter pilot figures he has more important police work to do? Answer: Not very many! [quote]ORIGINAL: twtaylor The fact you don't care for the AMA closes many doors for you and that's ok, it's your choise. You're welcome to fly here anytime, if you join the AMA. [/quote] I have lots of "doors" open to me. There are an estimated three times more RC fliers that are NOT AMA members than there are AMA members. Besides I can fly my kite at 500 feet per FAR's.
Posted on: 3/20/2007 8:25 PM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5592229

RE: 400 feet limit?
Gee, you care! I was not the one that started the permit process. I was not the one that wanted to fly 55 pound power planes at over 60 mph in the middle of an open and totally accessible public park. The 400 foot limit was foisted on the City by the FED's knowing full well there is no legal justification for it nor is it enforceable. I just pointed out how unsafe large power planes are for the park in question. I pointed out that demanding unreasonable levels of insurance for an established and pre-existing activity is inadvisable due to the inequity -- next are the bikers and joggers and dog walkers. I pointed out that even the AMA reps that have reviewed the flying site have and still state the same concerns. I pointed out that even a two pound power plane can fly around at over 80 mph (think Striker). The City council made their decisions based upon all inputs. Perhaps you can e-mail and berate them. Besides what does someone from South Carolina give a flying doo-doo about what takes place in southern California. [quote]ORIGINAL: twtaylor From your words and actions at the Council meeting you've made it plain you want the flying field to remain gliders only. Well you've accomplished a bit. You can't fly anything over 10 lbs and nothing over 400' so I guess "Everyone flies or no one flies" is out the window. Looks like the council has made it nearly impossible for gliders to fly there now. Your pissed because the field didn't stay the way YOU wanted it. So sad. You can do what I'm doing, Or not, buy your own flying field and no one can push you around. I fly gliders as well as pattern and don't care too much for club politics either. [/quote]
Posted on: 3/10/2007 12:32 PM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5540176

RE: Designing a non-powered glider, any ideas?
Look in the freeflight section of this web site and on rc groups.
Posted on: 2/19/2007 7:21 PM by Author "SoCal GliderGuider" in the forum "RC Gliders, Sailplanes and Slope Soaring"
http://www.rcuniverse.com/forum/fb.asp?m=5443520

RE: How to 'slice' a DXF file?
[quote]ORIGINAL: tasesq Hi All, I have downloaded Rhino, and can manage to select the body/wing object and print it. I still can't figure out how to make a slice. I can add a cuting plane, but can't figure out how to slice along that plane Help! (Please) [/quote] Zip the file then change the extension to one that the file upload will take. Remind us in the posting to change the file extension back to Zip.
Posted on: 2/15/2007 10:52 AM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5422383

RE: copy of mag srcm usa
Wonder if she got a sunburn during the photo shoot.
Posted on: 2/11/2007 9:39 PM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5405336

RE: Assistance needed for flying site
[quote]ORIGINAL: abel_pranger Does it make flying a model glider a misdemeanor offense? Bill M claims the same laws are on the books in the county. Why would the city make a redundant ordinance? [/quote] There is a blanket misdemeanor violation for any of the cities codes. There is no direct mention of any punishments within the ordinance itself. The county has a blanket coverage for it's parks and does not include private property as Costa Mesa does in it's ordinance. It's a poorly written ordinance.
Posted on: 2/7/2007 2:28 PM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5384621

RE: Assistance needed for flying site
[quote]ORIGINAL: abel_pranger Comments interspersed. [b]I know of no instances of the same laws being effected in the other SOCAL locations you specified.[/b] [/quote] Costa Mesa's new permit system ordinance has such a wording. "(a) No person shall bring, land or cause to descend or alight any radio controlled model aircraft within the City without first obtaining a permit pursuant
Posted on: 2/7/2007 1:17 PM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5384324

RE: Scale Gliders
Take a look at www.tmrcsailplanes.com
Posted on: 2/6/2007 11:19 AM by Author "SoCal GliderGuider" in the forum "RC Gliders, Sailplanes and Slope Soaring"
http://www.rcuniverse.com/forum/fb.asp?m=5378928

RE: Assistance needed for flying site
[quote]ORIGINAL: Red Baron Mike In the Sacramento Area, several of our club members arranged for a local city to sell annual permits for $ 5.00 to allow small electrics to fly in two of their parks. We suggested they only allow AMA members to participate for insurance purposes. Our primary selling point was the reality of "park fliers" being flown "unsupervised" by somewhat inexperienced pilots in every available park. By allowing two specific sites and requiring AMA membership, the city reduced its exposure to accident claims since there are now two semi-organized flying sites instead of dozens of unorganized locations, the pilots are covered by AMA insurance, plus the city gets to sell $ 5.00 annual permits...everyone wins. [/quote] So one has to join a private organization to use a public park.
Posted on: 2/6/2007 11:07 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5378873

RE: Assistance needed for flying site
[quote]ORIGINAL: STLPilot Most would be amazing surprised that most parks respond in just the same way, it's just a matter of asking the right way which you obviously did. Good job, but I suggest you try to create some kind of small club to help keep it's existence. Wonder if that park knows that we now have 55 lb planes which are battery powered, prolly not. You don't want them to find out the hard way. Good stuff ... [/quote] No mention of adapting the AMA codes. Reference "does not compromise the safety of or interfere with activities of other visitors to the park", so there is no weight limit. No speed limit either. What is expressed is a big disconnect between the potential injuries of a gas/fuel powered aircraft and an electrically powered aircraft of the same size. It may also be a noise issue too.
Posted on: 2/6/2007 11:05 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5378866

RE: Batch Airfoil Coords Input in AutoCAD?
Get ConCord from Martin Hepperle's web site. http://www.mh-aerotools.de/airfoils/index.htm Can take most any data file format and make a DXF file out of it.
Posted on: 1/25/2007 11:08 PM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5324435

RE: CoCreate OneSpace Modeling - Any Experience??
Could you post the direct links to the downloads? I don't like to send my e-mail address out.
Posted on: 1/22/2007 1:08 PM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5305401

RE: Come try Delta Cad? It's great!
[quote]ORIGINAL: dreadnaut We often have to bind the xrefs on drawings we send to sub-contractors because their drafting people do not understand them either. [/quote] A lot of those that supposedly know about Xref's don't know how to use them either. About two thirds of the cad drawing packages I get don't have the Xref's included. Can take days of back and forth e-mails to get the Xrefs and missing font files. I agree that paper space is a trick to use. Once you figure it out is makes plotting so much easier. My complaint with 2002 is you can't set the line type scale (ltscale) independently in each view port. You can force paper space to use a different ltscale through the psltscale command (in paper space). [quote]ORIGINAL: dreadnaut I had a problem with the Angled Dimension function. You are prompted to pick two points, then enter an angle. ACAD's Aligned Dimension feature automaticaly determines the angle from the two points picked. This does create a problem if you are trying to dimension across a span of two ore more parallel lines that are offset. My work around for this is to set a new UCS with x' in the direction I want the dim to align. [/quote] Use the Osnaps Near then Perpendicular with the Aligned Dimension command.
Posted on: 1/14/2007 2:59 PM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5264198

RE: Using flaps... how much elevator??
Using the five point adjustment for elevator to flaps I pull in a lot of down elevator at first, then back it off as the flaps go past the 45 to 50 degree point then take most of it out.
Posted on: 1/12/2007 9:40 PM by Author "SoCal GliderGuider" in the forum "RC Gliders, Sailplanes and Slope Soaring"
http://www.rcuniverse.com/forum/fb.asp?m=5256036

RE: Scanning 21" Ribs to DXF format
I would do the rib in sections and stitch it back together in Acad.
Posted on: 1/10/2007 3:48 PM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5243356

RE: Scanning 21" Ribs to DXF format
Most scanners will have distortion on one or both of the axises. I lay two flat rulers X,Y on critical scans, take the scan into Acad, do the outlining, scale it on the axis that is closest to the actual length, make a block out of it and rescale the off axis of the block through the "Properties" dialog box, then explode the block when I'm as close as I can get. I will do this for all ribs on a severely tapered wing such as a delta then rescale and overlay the ribs on each other to get a compromised rib out line. I use this rib as the basis for all of the ribs and redraw the wing plan scaling the "master" rib as necessary placing the wing spar notches and offsets for sheeting on each of the resized ribs. How old is this delta plan?
Posted on: 1/10/2007 3:46 PM by Author "SoCal GliderGuider" in the forum "Scratch Building, Aircraft Design, 3D/CAD"
http://www.rcuniverse.com/forum/fb.asp?m=5243349

RE: 400 feet limit?
[quote]ORIGINAL: Phaedrus-MMVI OK, as always you are right. The rest of us are either lying or stupid. Or both. [/quote] Depends on how many trees are in your forest.
Posted on: 1/9/2007 1:29 PM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5236975

RE: 400 feet limit?
Malvey:"One other thing that gets lost here is just how much danger are we really in?" Statistics can be bent to answer most any question. When the necessary precautions are taken to promote flying site safety the result is less flying accidents. Fairview Park is not by any stretch the same flying site that Sepulveda is. Possibly never will be. As such there have been at least six injuries to non fliers by powered models in the last year. As the AMA does not provide the raw data so that it can be examined by others the stats you refer to are interesting but not worth a darn.
Posted on: 1/9/2007 11:32 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5236512

RE: 400 feet limit?
STEVE, I find it extremely interesting that my three minutes in front of the city council toward the last of the hour and a half caused them to roll over and completely change their minds. I must be a Jedi with the mind trick capability. Of course all of the other speakers that came before me and countered the power fliers obviously false statements don't seem to be getting the screen credit that I am. As I was trying to point out with the "blame the dead spectator" one has to take responsibility for their own actions including promoting an ordinance that is rife with incompetence.
Posted on: 1/9/2007 11:24 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5236486

RE: 400 feet limit?
[quote]ORIGINAL: Phaedrus-MMVI The bold words are there only to indicate changes for 2007. They are not there to convey special meaning. [/quote] So as always the AMA interpretation suits the moment. I take #4 to mean exactly what it states; all over flown areas will be clear of persons. If signage does not accomplish this then "barriers" (fencing) is necessary. [quote]ORIGINAL: Phaedrus-MMVI As to all the rest, you are getting repetitive in your arguments and choose to see what you want to in your quotes. [/quote] As "others" do too. [quote]ORIGINAL: Phaedrus-MMVI Irrespective of yourviews of rules and such, can you just simply list what you see as an acceptable outcome at Fairview park? No unsubstantiated finger pointing, no name calling, no veiled threats, just a simple listing of what you would see as an acceptable outcome. [/quote] It's not up to me to determine the outcome of Fairview Park. Making sure that all of the facts are presented to the city council is my concern.
Posted on: 1/9/2007 11:16 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5236450

RE: 400 feet limit?
Malvey:"And as far as the City Council is concerned, they approved the ordinance with revisions such as the weight limit on planes. So I am not clear how they are worried about recall, etc." The ordinance has received and passed first reading. There is still another final reading to take place. A lot can happen between last Tuesday and a month from last Tuesday. The local newspapers are picking up on the story with reporters asking a lot of questions. When word gets out that to facilitate powered model flying at Fairview Park most of the open space has to be fenced off there may be a march on city hall.
Posted on: 1/9/2007 11:10 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5236429

RE: 400 feet limit?
Malvey:"But to take this to the logical extreme. If overflight is absolutely prohibited will it not make soaring difficult as well?? We range far and wide in search of lift and regularly over fly the adjoining houses, school, paring lots and other areas of the park where the public is present. Or am I missing something here??" There is a big disconnect between powered and non powered models. The sailplanes have, for the last 30 years or more, had mostly unlimited flying area. The club rules are to not fly over the school, housing and grass picnic area of the park. Though many times you will see some of the top contest fliers snaking back between the trees in the picnic area to make their landings. Personally I think it is not a good thing as lessor fliers who tried found their planes hitting the trees and dropping onto the grass. Then how do you tell the top sailplane fliers in the world NOT to do this marginal flying. I have flown over the edges of the housing and school but at launch height or greater. Below that I move out over the undeveloped park. In comparison to power planes most sailplane fliers are setting up for a landing at 100 feet. The power plane flyby pattern at the park has been between 2 and 100 feet at speeds two to six times greater and weights sometimes 14 times greater than the sailplanes. Does not give much buffer for corrections. Two different kinds of flying. Each has their concerns.
Posted on: 1/9/2007 10:52 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5236348

RE: 400 feet limit?
You need the actual wording of the 2007 Safety Code. When you cut and paste from the PDF you loose the bold words: "4. At all flying sites a safety line or lines must be established, in front of which all flying takes place. Only personnel associated with flying the model aircraft are allowed at or in front of the safety line. In the case of airshows or demonstrations a straight safety line must be established. An area away from the safety line must be maintained for spectators. Intentional flying behind the safety line is prohibited.� Rich Hanson stated: "I recommend you establish a flight safety/line (“deadline�) in the RC area from which all flying activity occurs on one side and all participants and spectators remain on the other side.�, “Establish specific flight patterns and “NO Fly� areas to separate the various modeling activities from one another and all modeling activity from areas occupied and used by other park users.� “Signs or barriers need to be placed to prevent the use of the ad hoc trail that currently transects the overfly area.� Carl Maroney stated: "We understand that the city is restrictive in their policy regarding fencing, barriers and signage.", "The dirt walking path crossing the runway and flying area must be closed!" Lets see; flying on one side and all others on the other side. Fencing, barriers and signage or as the park plan calls them "delineations". The fencing with signage around Sepulveda Basin is just for the flying area. But are you saying that just signage will accomplish keeping people out from under the over flying area? I don't think so. As to the wording of the ordinance; don't really know how you could miss this: ARTICLE 3 MODEL AIRCRAFT Sec. 12-61. Prohibitions (a) No person shall bring, land or cause to descend or alight any radio controlled model aircraft within the City without first obtaining a permit pursuant to this Article and adhering to the rules and regulations set forth within this title. Permits are not required to fly free flight models and model planes sold as toys. What is a toy plane?
Posted on: 1/9/2007 3:30 AM by Author "SoCal GliderGuider" in the forum "AMA Discussions"
http://www.rcuniverse.com/forum/fb.asp?m=5235463