RE: gas conversions?
What is CH web site? Thanks
Posted on: 9/7/2004 9:18 PM by Author "crashone" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=2156179

RE: 2.4mHz Microwireless/Zagi XS combination
The price is pretty good. We would like to see a picture of the camera comb. What brand is the camera? Could you please give the website of the company? Thanks.
Posted on: 5/31/2004 9:08 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1861955

RE: 1.0 gas engine
Thank you all for the information. I have MVVS 1.6. However, the 1.6 is overpowered for my plane. I hope find a 1.0 gas engine and the engine will be lighter than MVVS 1.6. It might be hard to find because MVVS 1.6 has good ratio of power to weight. Best Regards, CJ
Posted on: 3/7/2004 9:55 PM by Author "crashone" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=1601232

RE: What motor system should I choose
Fritz: Thank you for those numbers. My plane is not a scale warbird. I might call they scout, which disigned by myself. I had four prototype planes. Two was crushed. Basically, they are two types. One take off weight is 14 - 16 lb and powered by ST G75. Another take off weight is 23 - 25 lb and powered by MVVS 1.6. No any aeraobatics is needed. I just want them to take off, climb, stable flying, turn and landing even both types are able to do loop and roll. The new one is still in building. the 15 - 16 lb is the designing take off weight. The plane actually weight wo/power system should be around 8 lb. I was thinking AXI 41 series or Hacker B or C50. Or MVVS 1.6 (over powered and viberation problem). Could you please tell me why do you recommended AXI? What is the LiPoly bettery life time (how many times can be recharged)? Do they have longer life time than NiMH? Best Regards, CJ
Posted on: 3/7/2004 9:26 PM by Author "crashone" in the forum "Brushed/Brushless motors, speed controls, gear drives"
http://www.rcuniverse.com/forum/fb.asp?m=1601078

1.0 gas engine
Hi! Anybody knows where I can find 1.0 cu inch or close 1.0 gas engine? Thanks.
Posted on: 3/6/2004 7:57 AM by Author "crashone" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=1596112

What motor system should I choose
I want to convert ST G75 glow engine to electric motor for my plane. The plane weighs about 15 lb and wing area is 1450 squre inch. I like to use smaller prop such as 14" or 16" in diameter. Also I hope to have 0.5 - 1 hour flying time. What motor system should I choose(motor, controller, battery...)? Any input will be greatfully appreciated.
Posted on: 3/4/2004 8:18 PM by Author "crashone" in the forum "Brushed/Brushless motors, speed controls, gear drives"
http://www.rcuniverse.com/forum/fb.asp?m=1591331

RE: Stanford Linear Accelerator Center Pix
What is take off weight of your plane? Thanks.
Posted on: 2/29/2004 9:39 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1577818

RE: RE: RE: mvvs 1.60 gasser
Thanks Pe
Posted on: 2/23/2004 8:25 PM by Author "crashone" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=1557915

RE: Motor running time
Hi! Bill: I was told by Hacker Brushless USA that the maximum time is 30 minutes for C50. I know that some electric plane can fly 2 -3 hours ( not those crossing Atlantic ocean). They might use different type motor. Do you think It will be OK to run a significantly extended period of time if the motor is exposed to the air (not in the plane) and the plane fly at 2/3 - 1/2 throat at most time during flying? I am not trying an endurance record. I just need a longer time to take aerial image. CJ
Posted on: 2/22/2004 8:23 PM by Author "crashone" in the forum "Brushed/Brushless motors, speed controls, gear drives"
http://www.rcuniverse.com/forum/fb.asp?m=1554473

RE: RE: RE: mvvs 1.60 gasser
Hi! Pe: Is it any impact on the engine running or engine life if the fuel tank is 6 - 8 inch below the engine? Can MVVS 1.6 continuesly run 2 or 3 hours? Thanks. CJ
Posted on: 2/22/2004 7:52 PM by Author "crashone" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=1554371

Motor running time
Can thoses large electric motors, Hacker B50 and C50, AXI 4130,etc. continuesly run for 1 or 2 hours? If not, what motor can do this? Thanks.
Posted on: 2/21/2004 6:47 PM by Author "crashone" in the forum "Brushed/Brushless motors, speed controls, gear drives"
http://www.rcuniverse.com/forum/fb.asp?m=1551239

RE: Digital Camera
If you buy digital camera with manual shutter speed control, you might avoid the viberation problem by setting higher speed. During 1999, I took many good picture by using 35 mm camera (around $40) on my plane (with ST G40 engine). Later, I changed to digital camera on my plane (with ST G75) engine, I got good quality picture only engine was shut down. Recently, I used Canon AE-1 (heavy) and got good picture at higher speed.
Posted on: 2/18/2004 8:17 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1541786

RE: camera recommendations for UAV...
Hi! DB: Is it digital infrared camera? How much is the cost and where do you get it from? Thanks
Posted on: 2/18/2004 7:52 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1541696

RE: Best quality video?
Dan : Thank you for the information about Supercircuits system. The wider range is important for me, I may have no choice, but Supercircuits system. When you get further test information, I would like to read.
Posted on: 11/16/2003 10:03 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1282871

RE: Best quality video?
Hi! Dan: [Knowing what I know now, I wouldnt have purchased the Supercircuits system but would have purchased one of the Blackwidow systems instead. Or will in addition, probably. Havent given up in the 900mhz system but the signal reception is very disappointing][/quote] Is it because of high cost of Supercircuits system or picture quality? [The Supercircuits 900mhz system holds a good signal as far out as I have flown it but is very touchy about flying over the antenna.][/quote] If the plane did not fly over the antenna what about the picture quality, better or same as Backwidow system? Supercircuits system does have much bigger range than Blackwidow system, doesn't it? Thanks.
Posted on: 11/3/2003 9:40 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1250093

RE: Where to get 1"x1" or 3/4"x3/4" SQ cf tubing
William: Do you know where to get large size round carbon or fiberglass tube? Thanks.
Posted on: 10/31/2003 8:12 PM by Author "crashone" in the forum "Composites Fabrication And Repair"
http://www.rcuniverse.com/forum/fb.asp?m=1243147

RE: mvvs 1.60 gasser
I used Master Airscrew 16 x 10 3 blades push prop for MVVS 1.6 engine, I forget what was the rpm(may be about 6000). The plane was about 23 lb and flying was good. No aerobatic since that is not my purpose. Now, my question is if 16 x 10 3 blades prop is proper for this little engine or not? I tried to find better one, but not many choice for pusher at this size. I only find and bought Zinger 18 x 6 and this 3 blades. Others are either too big or too small. By the way, it was difficulty to star the engine by hand. Most time I used starter to star the engine and no problem. Thanks
Posted on: 9/29/2003 7:58 PM by Author "crashone" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=1170279

RE: Aerial Photography Product Survey
Hi! Ben: This is a very good idea. It will be even better if you rethink your disign direction. I tooked many ariel pictures (both regular and digital cameras) during past several years. The following are what I think. 1. set low end of shutter speed faster, say 1/125 or at least 1/60. 2. reduce the processing time after each shoot. 3. has universal connector to directly connect to receiver 4. no auto turn off 5. resolution between 2.0 to 3.0. 6. 50 or more pictures for each flying. 7. We don't need zoon, flash, and LCD picture screen if it can reduce the product cost by eliminating these functions. I like mini size, but I will not trade picture quality and main fuction with minisize. Actually, adding 4 , 5 oz on a 40 plane is not a problem. Plus you eliminated about 1.5 oz by directly conect the camera to receiver. I will buy if the price is around $150.
Posted on: 9/17/2003 11:18 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1144342

RE: Frequency question
[My Kadet Senior ARF is outfitted with that exact system. Honestly, the evil, wicked Spylinker system seems to perform better. Check my "KSA" videos for the Supercircuits video. The camera kicks ass. I definitely need to come up with a better antenna as the whip stinks. I bet 2 miles is possible with a yagi antenna.][/quote] I hope this time I quote right. I was talking 'Supercircis AVX900S9-V 900 MHz wireless system' Do you think what is the major cause of the low quality video.
Posted on: 9/13/2003 12:20 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1134054

RE: Frequency question
[quote][/quote] Dan: Do you think What is the major cause of the low qaulity vedio, camera or down link system (Tx, Rx, antenna). Thanks CJ
Posted on: 9/12/2003 11:32 PM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1133261

Frequency question
2.4 GHz are more efficiency than 900 MHz. e.g. for a given power output, 2.4 GHz has better range than 900 MHz. However, for moving target, you may see some breakup on 2.4 GHz system. 900 MHz might be ideal for R/C plane. Supercircuits sell a complete system, AVX900S9-V 900 MHz wireless color video system for $349.95 (was 499.95 last year). They claim" Up to 2 miles range and beyond' Is there anybody has experience with this system or any other their video system? What you guys think about Supercircuits' products? Thanks.
Posted on: 9/4/2003 2:03 AM by Author "crashone" in the forum "Aerial Photography and Video"
http://www.rcuniverse.com/forum/fb.asp?m=1094233