|Jan 30, 2009, 11:38 AM|
Micro TwinRay based on Minium Brick+EDFs
Hi - here is the maiden of my TwinRay Micro:
EDIT: Its DivX Videos (codec needed, as freeware available!)
- span 10''
- 26 gr AUW
- 2xEDFs in cones (about 20gr Thrust), about 80% FSA
- Minium Brick (Rx-servo-esc kombi), delta mixed elevons
- 2,4 Ghz DSM
- 130 mAH Fullriver (allowing me just to fly with75% throttle in the vid , a 250 mAh will come... )
I am very limited with the 130 lipo, have blocked my stick at 75% throttle in order not to fall in the voltage cutoff.
THIS THING is THE BEST PLANE I EVER MADE and its so manoeverable. I think with using 100% throttle from the 250 mAh lipo the fun will become infinity. Made my day!
EDIT:second vid, ran into cutoff (same starting sequence showing the plane)
|Jan 31, 2009, 02:46 AM|
machy2k - those are the fans from the silverlit/aeroace thunderscream/Thunderjet. Diameter 30mm, 3,5 gr + wires, as far I know 7mm pagers, 1.7 ohm, each giving about 10gr thrust.
Yep see it as a first testbed, this one - more to come.
|Feb 02, 2009, 12:39 AM|
I have a 3mm depron profile ME-262 using those fans with paper ducts. (28 gms) First time out I had the fans reversed. Dumb!!! it does fly but of course was turning the wrong way.
I'm just using the jetscream rx and differential thrust. What rx/speedcontrol are you using? How have you set up the control surfaces? (specifics please)
Are you running the two fans off a minium brick in parallel?
see photos. group shot for size reference.
|Feb 02, 2009, 02:30 AM|
Hi - I have linked both fans to a brick, the control surfaces are like in the pic, two elevons with some mm pos reflex. The hinges are from clear glue film ("tesa"), the rods are modded from a minium cessna and glued with shrink tube and CA, finally "sealed" with small drops of "UHU Kraft". The horns are from the cessna, but cut down to 4 mm, the holes were burned in with a small micro needle. Thats it.
I think your idea is nice to go on diffthrust. The me 262 you made after my plans from the AAtoolbox? Its a very well flier on x-twin gear, good choice. Post a vid if possible. Wish you success
In any case I would love to see a vid of your me performing in the air, If you dont mind, give me ashort PM if posted here somewhere. Thanks in advance.
|Feb 11, 2009, 11:11 PM|
Guten Abend relaxr.
The 262 was scratch made of 3mm depron from a 3 view I downloaded. I did extend the wing chord by 1mm at the rear to get a bit more flying surface. The size was determined by measuring the SkyForce sorta ME262 which is a proven flyer with it's pusher prop setup. (theres one in the group photo for reference)
It didn't fly too well with the paper ducts and they were easily damaged. I removed them and it flew well but turns were too wide for our flying site. I am making new ducts from the template found on the microjet plan and will try that tomorrow evening.
If it flys I will try to get a video.
Don in Canada
|Feb 11, 2009, 11:15 PM|
Have a lok here to see an interesting control setup with a minium brick. (not mine but has me thinking)
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