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Off Topics > RC Gliders (Sailplanes), who flies them?
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

Quote 
There's a slope glider record of 300+ mph. The guy's name is Kyle Paulson. They use a technique called Dynamic Soaring where the glider does very fast circles, part of which are behind the ridge where the air is slower, and the pilot uses the wind speed differential to accelerate to insane speeds.

That guy is an awesome pilot. I have watched him many times up at Parker Mt. where the record was made.

**Unattended children will be givin a shot of espresso and a puppy**
01-17-2008 05:35 AM
 
 
GimbalFanElite Veteran - Location: Copter County, Nv -
Just out of curiousity, what face (N, S, E or W) of Parker Mtn is usually used? What's the prevailing wind direction out there?

01-17-2008 05:44 AM
 
 
baddraptor
Elite Veteran
Location: valencia, ca- usa

The good winds come in from the north, so the HIGH speeds are on the south side. It really is insane watching it. The sound the airfoil makes as it rips through the air is unbelievable, video does not do it justice.

Speaking of winds, we are in HIGH Santa Ana conditions right now with gusts up to 70mph. Tomorrow would be a GREAT day for some DSing.

**Unattended children will be givin a shot of espresso and a puppy**
01-17-2008 05:49 AM
 
 
roava
Heliman
Location: Southwestern Virginia

Hey Furious Predator, How's the progress on your Bird 3000 coming along? I just started with mine; I'm leaving the purple covering on. I will put some wide contrasting stripes on the wing bottom. That motor mount is a real booger isn't it? I hope I got mine right! The motor I will be using is a MPJet AC 28/20-7. Just to let you know that someone down here in Virginia is watching this thread with a lot of interest. Good Luck!!
01-19-2008 11:10 PM
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

thanks for the reply

sofar so good, i have been doing a number of my own little mods as i go, pretty much ignoring the manual. i am keeping my BOT section in my gallery up to date as i progress through the build.

i agree with the motor mount. its a pain in the rear big time...actually...i threw mine out and made one because of the mounting style my motor uses. my E-Flight motor needs to be mounted on the rear, and not the front. if i had have used the stock mount, my motor would stick out over an inch out from the nose. instead i modified that plywood bulkhead the kit comes with to sub in as the mount. i used some fiberglass & epoxy to make sure the mount wont be going anywhere.

also. i threw away that wire they say to use for the canopy/windshield.

instead, i am useing a hinge for the front part of the canopy, and a set of strong neodinium(spelling) earth magnets on the back to hold it down. this way there are no clips and crap to mess with. just pull it up to swap batteries. the magnets and wind pressure will keep the windshield in place.

i am almost done the covering. i am pretty pleased with how it has turned out. i just need to buy some more servo extensions before i can finish the mid section. i am really glad i have alreayd had the experience of doing covering on the Butterfly before doing this thing. its turning out just as nice as the purple...with the acception of a couple holes (that are now patched) from getting the covering too hot with the gun.

i am going to order some Multiplex connectors to make things a little easiers, since i will have 4 servoes to hook up when i attach the wing.
http://www3.towerhobbies.com/cgi-bi...p?&I=LXEXT4&P=M
http://www3.towerhobbies.com/cgi-bi...p?&I=LXEXT3&P=M

these connectors let you turn two standard servo connectors into a single connector. then i will only have two to join up.

another simple mod i did was i threw away all of the steel rods the kit came with, and replaced them with equivelant sized carbon rods. this includes the rods used to hold the elevator together, and the aileron control rods. i'm just trying to save a little weight, esspecially on the tail where it counts

last night i hung this beast up on my ceiling with the wings assembled...right next to my butterfly
i cant wait to giver a go!

FYI, the ESC im going to use is also by E-Flight, im going with their 80 amp version...which is very overkill...but its one of the few ESC's out there with a BEC that can handle more then a few servos...i have 6. plus its more affordable then most others that i could find...about $20-40 cheaper.

i hope you installed the motor with the spinner already fitted on it though...

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
01-20-2008 10:34 AM
HOMEPAGE  
 
 
roava
Heliman
Location: Southwestern Virginia

Looking good Furious! My spinner looks good. That's a good idea on the canopy. I will be replacing my elevator & rudder control rods with a couple of Sullivan Golden Rods. Hey I got a question for you; will you glue the two rods into the elevator or will that be a friction fit? I was thinking if I glue them, I would have one heck of a time to remove them if I ever have to repair that linkage in there.
01-22-2008 12:02 AM
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

i have epoxied them in. the fit was relativly loose, and i dont want to trust my plane to a friction fit. if i need to remove the elevator, i'll just cut the rods. but i cant see a reason why i would ever have to.

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
01-22-2008 12:06 AM
HOMEPAGE  
 
 
roava
Heliman
Location: Southwestern Virginia

Yea, I thought that would be the best: using epoxy. Just wanted to run that by you. Thanks!
01-22-2008 12:36 AM
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

no problem

i currently have on order all the connectors and extension wires i need to finish the wiring...then i can finish the covering. then all i need is the ESC and RX. still waiting for my lipo's to come in the mail. they will be Air Thunder 3S 2200mah

as it is...all of the wires and connectors are costing me about $70

good thing its a one time purchase.

i have the windshield sanded down so i can clear coat it later on when i do up some canopies.

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
01-23-2008 01:38 AM
HOMEPAGE  
 
 
rcsoar4fun
Veteran
Location: Corpus Christi, TX

Shoe Goop tends to make a better connection for pushrods than epoxy. The resin used by some builders just doesn't bond well to your average 15 min epoxy and will bust over time. Goop holds well enough and is flexible enough to last forever.

I am a Master of three martial arts including ninjitsu, which means I wear the special boots
01-23-2008 04:15 AM
HOMEPAGE  
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

i figured that might be an issue...which is why i always rough up what ever surface is going to be bonded before applying my 30 minute epoxy. also..for some reason, my 30 minute epoxy takes several hours to cure...but it only seems to happen in small amounts. maybe the ratio is just real sensitive.

i'll keep the GOOP in mind for next time, thanks.

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
01-23-2008 04:20 AM
HOMEPAGE  
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

Well, the plane is built.

im going to clear coat the windshield when the weather warms up. this will give it a perfect mirror finish

all controll surfaces are installed and working, including my home made flaps. all i need is an ESC and RX, but that will need to wait until i have more money to spair.

i would take a pic of it, but there is snow everywhere outside, you wont see my white plane against it

i cant wait to fly this thing!

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
02-22-2008 07:40 PM
HOMEPAGE  
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

well...i finally have everything i need to get this thing airborn. i just need to clear coat and mount the windshield

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
04-15-2008 12:47 PM
HOMEPAGE  
 
 
GimbalFan
Elite Veteran
Location: Copter County, Nv

Pics!

op-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-thwõp-t
04-15-2008 07:44 PM
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

very soon, i just baught a new cammera last night

i got myself a Fujifilm S700. i have had an eye on it for a long time, and it came on sale, so i couldn't let it go.

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
04-15-2008 09:12 PM
HOMEPAGE  
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

Pictures

Took it out for the maiden flight today, 3 flights total. it went well other then the fact that i had vertually no aileron control. i had to use the rudder a lot to help out. at full throttle and high speed, aileron control was virtually nil and void. Other then that, it went great. it could lift its own weight and hover at half throttle. or go into a high speed vertical climb out at wide open.

flaps seem to be working very well.



Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
05-14-2008 12:41 AM
HOMEPAGE  
 
 
#55
Senior Heliman
Location: Ft. Hood, TX

coool....

My friend and I just put together a BOT... where using a Heavy -duty hi start...


we are having problems staying in the air though....longest flight was like only 1 min.... ya- I know...

we are flying at a helicopter stagfield off-post.......it's nothing but a HUGE area of assfalt- and with this HOT AL Wx I don't know why we couldn't catch any thermals.....

we are currently in the process of converting it to Elec...



any suggestions as to why are flight-time sucks....it was well built???

flying 60's in the Hood
05-14-2008 01:45 AM
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

how high were you getting it?

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
05-14-2008 02:05 AM
HOMEPAGE  
 
 
Boidman
Key Veteran
Location: home

BOT's are truly gorgeous. Yours looks great, but I do wonder (gently) why the red wraps up out at the tips.

My glider experience, up to 14 footers, says you have plenty of aileron area located close enough to the wingtips to get real snappy control.

Unless you intend to fly hard and twitchy upsidedown, often, I believe part of your control problem may be lack of throw differential. For a right turn, the right aileron should deflect up more than the left one does, down. The increased drag of the greater deflection on the right, helps with the turn.

Still, those ailerons look wide and long enough to give great control, given sufficient throw. My setup with that bird would have the ailerons able to move at least 3/4 of an inch up and down, as a starting point, with no differential. With, 3/4" up, and 3/8" to 1/2" down would be reasonable.

The original BOT's had a fairly light wing loading, and were once considered true thermal beasts. Even with more modern materials, which surprising might net a heavier wing loading than the originals, an unpowered BOT should thermal to beat the band. Large areas of asphalt tend to be great for thermals, but you don't always find them where first inclination might suggest. Many of us have done best near the edges of light and dark surfaces. My first choice has always been the upwind transition point of light to dark ground cover. Second choice was the downwind transition. Heat obviously rises, but the center of a large dark surface is often not the best place to find thermals.
05-14-2008 02:26 AM
 
 
Furious Predator
Elite Veteran
Location: Kitchener, Ontario, Canada

yeah, another friend told me about the throw differential not long ago, at the moment, i have both ailerons acting symectrically.

i have the red underneath the tips of the wings to HELP me get it oriented, just incase....and they have already paid off. simply because i was doing a lot of manouvers to try and get a good feel for what it is capable of.

i need to get a video though of the climb out rate of this thing, it is un real.

also...another bad thing...i had to add 170g worth of lead to the nose

i have everything possible moved forward, but its no where near enough, even after making the tail lighter with carbon rods verses the steel ones.

it did however seem to sail around very nicely without power. i couldn't find any very strong thermals where i normally find them, but there were enough to maintain its altitude.

Shawn
Team Leisure-Tech
Cratering the earth one heli at a time
05-14-2008 02:52 AM
HOMEPAGE  
 
 
9 pages [ <<    <     4      5     ( 6 )     7      8     NEXT    >> ]4237 viewsPOST REPLY
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