Espritmodel.com Telemetry Radio
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Old Jul 19, 2004, 12:20 PM
Registered User
West Chester, OH USA
Joined Jan 2000
1,052 Posts
Hangar 9 Ultra Stick

Model/subject: Hangar 9 Ultra Stick 40
Motor: Plettenberg Orbit 25/18 Outrunner
Speed Control: Jeti Advance Opt 40
Cell type/count: 16xGP3300
Prop/fan: APC-E 14x10
Reduction method and ratio: Direct Drive
Amps: 39
Watts: 650
RPM: Not measured
Weight Ready to Fly: 101 ounces
Comments: Easy conversion, flies just like the .40 glow version with very good vertical and just a little less top end. Motor is very smooth and well made - a definite step up from an AXI.
Thread on this conversion here: http://www.rcgroups.com/forums/showt...60#post2407660

Don
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Old Jul 25, 2004, 10:16 PM
gasless
Seattle area
Joined Jun 2004
631 Posts
GWS A-10 Warthog

Model/subject: GWS A-10 Warthog, greatly strengthened with carbon spars in fuselage and wings, 0.75oz fiberglass over everything.
Motor: 2x Himax 2025 2700kV, with 2x Hacker B20S heatsinks per motor
Speed Control: 2x Castle Creations Phoenix 25, low advance timing for extra efficiency, LVC=18.0 volts
Cell type/count: Lipo Kokam 2000 15C 6S1P
Prop/fan: 2x Vasa 55
Reduction method and ratio: n/a
Amps: 17A per fan, ~34A total
Watts: ~700 at start
Thrust: > 1200g
RPM: ~42000 (from video doppler)
Weight Ready to Fly: 39 ounces
Comments: This is a powerful pair of ducted fans! This setup definitely needs heatsinks - the 24mm outer diameter heatsinks for hackers allows the motors a nice fit in the Vasa motor tubes (also 24mm). Did maiden flight today - 4 flights actually, until hard landing ripped off both nacels cleanly - no other damage. It easily flies level at 1/2 throttle, and can loop continuously at 3/4 throttle. Hand launch is possible, will not ROG from grass with skids - these need pavement.

videos: http://rcgroups.com/gallery/showgall...0&ppuser=34746

-Gerry
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Last edited by gfcermak; Jan 14, 2005 at 10:48 AM. Reason: upgraded cells from TP2100 5S to Kokam2000 6S
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Old Jul 25, 2004, 10:32 PM
Registered User
Columbus University, Ohio, United States
Joined Jul 2003
142 Posts
Alfa MiG15

Model/subject: Alfa MiG15
Motor: Himax 2015-5400
Speed Control: CC25, low timing.
Cell type/count: Tanic 3s1p 1550
Prop/fan: Stock
Reduction method and ratio: n/a
Amps: 14, estimated
Watts: 150, estimated
Thrust: 14oz, estimated
RPM: ~50k
Weight Ready to Fly: 13oz
Comments: I am not too sure about these numbers, most are deduced from the battery temp. I can however tell you that this setup makes for an extremly light aircraft that will fly straight up effortlessly. The key to being able to use such a hot wind motor is drilling air holes in the front of the motor mount and drilling out the rear of the motor mount, this allows for a very severe airflow moving around and past the motor keeping it very cool. I have even flown this plane with a Tanic 4s1p pack WOT up until the wings ripped off and it destroyed itself. This did however allow for me to immediatley check the motor temp and it was just a little hot maybe 110-120F.

-David
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Old Aug 09, 2004, 12:10 PM
now that's a wattmeter...
simingx's Avatar
Singapore
Joined May 2002
1,136 Posts
Model/subject: Filip 600 Sport
Motor: Lehner "Basic" 4200
Speed Control: Schulze future 12.46e, 9kHz, soft timing
Cell type/count: Sanyo RC3300HV x8
Prop/fan: Graupner 12x6 folding
Reduction method and ratio: Maxon 4.4:1
Amps: around 30+
Watts: 240?
Thrust: Not known
RPM: Not measured
Weight Ready to Fly: Not measured, but it's a 2m sailplane...

Very good climb for a plane this size, and the low amp draw makes sure the battery comes out only as warm as when it went in...

Video here: http://rcgroups.com/gallery/data/500/30579080804_F6.wmv (6MB)
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Old Aug 14, 2004, 10:42 AM
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AeroNut45's Avatar
Australia, VIC, Keysborough
Joined Jun 2004
1,993 Posts
Model/subject: Indoor/parkflyer /aerobatic sports plane
Motor:CD 20mm dia
Speed Control: TMM 8
Cell type/count: 2s1p 1200 E-tec
Prop/fan: 8x4 HD
Reduction method and ratio:
Amps:5amps
Watts:36
Thrust: 265g
RPM:guess 6600
Weight Read to Fly: 264g
Great fun, ample power ( not 3D)
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Old Aug 26, 2004, 11:40 AM
Registered User
tho98027's Avatar
Joined Aug 2004
976 Posts
Model/subject: House of Balsa electric P-51 w/retracts
Motor: Mega 16/15/3
Speed Control: CC phoenix-25
Cell type/count: Tanic 5s 2500mh
Prop/fan: 11x8.5
Reduction method and ratio: Mec superbox 5.0:1
Amps: 28 estimated
Thrust: 84 oz
Weight Ready to Fly: 56 oz
Performance: insane!
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Old Aug 29, 2004, 10:25 PM
207
Unreconstructed
Chickamauga, GA
Joined Jul 2004
234 Posts
Model/subject: Top ModelCZ Electro Kulbutin Motor:Plettenberg Orbit 20/14 Speed control: Jeti Advance 70 3p Cell type/count: Thunder power 6000mah 3s3p or two LightflightRC Irate 3000mah 3s2p's in parallel Prop/fan:Graupner folding 13x10 Reduction method and ratio: Direct drive Amps: 64 amps static Watts:500+ Thrust:n/a RPM:n/a Weight ready to fly: 2.5kg+ est. Comments: Wwaaaaahhoooooo!!! Ok, I tried to line this up like everyone else, Oh well
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Last edited by 207; Aug 29, 2004 at 10:28 PM.
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Old Sep 01, 2004, 08:42 PM
3D Wannabe
RC4_LIFE's Avatar
Temple, TX
Joined Sep 2004
468 Posts
Model/subject: FFF aerobatic sports plane
Motor:Himaxx 2015-5400
Speed Control: CC25
Cell type/count: 11.1V Kokam 1500
Prop/fan: 10x4.7 HD
Reduction method and ratio: GWS 6.61
Amps:10 amps
Watts:?
Thrust: 20oz +
RPM: no idea
Weight Read to Fly: 17oz
The most fun flying plane that I've built so far.
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Old Sep 01, 2004, 10:05 PM
Registered User
Albuquerque, NM
Joined Aug 2004
44 Posts
Model/subject: 2m Sailplanes such as Astro Challenger
Motor: Trinity Serpentine 14 Turn
Speed Control: Jeti JES 500
Cell type/count: 7-cell 1950 mA-Hr Ni-mH
Prop/fan: Aero-Naut 13.5" x 7" carbon folding
Reduction method and ratio: : MP JET MPJ 8063 3.8:1
Amps: 45 Amps
Watts: about 300W
RPM: 5800 (I think)
Weight Read to Fly: 38 - 42 oz

Comments: Advance motor timing 22 degrees. Some additional details with previous CP1300 battery can be seen at:
http://www.soarabq.org/projects.shtml#astro_challenger

Will climb vertically, but optimum climb rate will get about 1400 ft/min. 900-1000 feet for a 7-cell, F5J 40 second climb. I fly at 5500 feet, so smaller prop or higher turn motor may be appropriate for sea level.
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Last edited by ThinnedDope; Sep 02, 2004 at 08:51 AM.
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Old Sep 08, 2004, 01:44 PM
Gravity Always Wins...
bnl2001's Avatar
Medina, Ohio
Joined Jun 2003
228 Posts
Model/subject: MountainModels Flashback II
Motor: RZ-2500
Speed Control: CC-25
Cell type/count: 8 and 9 cell KANs 950s/1050s
Prop/fan: APC 11x8.5 TE
Reduction method and ratio: Himax gearbox including Himax pinion and spur gear with 5x1 reduction.
Amps: ?
Watts: ?
RPM: ?
Weight Read to Fly: 16oz

Unlimited vertical with 9 cell KANS. Still good vertical performance with 8 cell KANS. Even Himax spur gear is not strong enough. Spur gear developed problem after about 20 flights. GWS spurs only last about 10 flights with this setup. Still looking for a quality gearbox setup.
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Last edited by bnl2001; Sep 23, 2004 at 08:36 PM.
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Old Sep 14, 2004, 10:16 PM
Registered User
Joined Jul 2004
608 Posts
Model/subject: Unicorn
Motor: Mega 16/15/4
Speed Control: CC ESC 35
Cell type/count: 12 cell GP 1100
Prop/fan: 6x4 and 7x4
Reduction method and ratio: Direct Drive
Amps: ?
Watts: ?
RPM: ?
Weight Read to Fly: ?
Flys great with the 6x4 and even better with the 7x4 but for a much shorter duration.
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Old Sep 15, 2004, 04:48 AM
Francesco
nibbio's Avatar
Italia, Lazio, Ardea
Joined Sep 2004
630 Posts
Multimotor set up

For a multimotor set up this is my experience:

model : B29 scratch built
w/s : 106 inches
weight : 12 lbs
motor : 4x speed 600
prop : 9x5 slim prop direct drive
cells : 28 Ni-Cd 1600 mAh ( four packs)
amps : 25 A on ground test
flight : 5 minutes

with this set up plenty of power, good climb and half throttle for a cruise flight.

regards
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Last edited by nibbio; Sep 15, 2004 at 04:52 AM.
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Old Sep 15, 2004, 10:58 AM
flo
Registered User
flo's Avatar
Near Munich Germany
Joined May 2003
961 Posts
EXCALIBUR III no pics :(

Hi:
My plane is scratchbuild semiscale after The ExcaliburIII B-Mustang.
Wingspan 1,80 m
L: 1,59 m
w 5,25 kg
Motor Lehner 1940/10 bl
Gear Reisenauer "Superchief" 6:1
Prop 4bl 15,2x10,5 Ramoser "Varioprop"
Rpm 7400
Bat 9s3p 6000mah Thunderpower (3X 3s3p)
controller Jeti 77 3po (?)
Power 30v x 50 A= 1500W and around 7,2kg trust
retracts, flaps 9 servos around

great flyer, quite tame, no nasty habits, plane is relativly new (4 flights sofar) which took about 2300 mah back after 9 mins of mixed flights.

I have tons of pics but unfortunately the files are too large!

greetings from munich
flo
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Old Sep 15, 2004, 12:53 PM
Registered User
BandDButton's Avatar
Rogers AR
Joined Jan 2004
436 Posts
Pics!!

flo,

We need to see your pics!!
Just open them into paint, and then rescale them to about 25%, save them and then post them at the new size. Works great.

Darrell B.
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Old Sep 16, 2004, 05:10 AM
flo
Registered User
flo's Avatar
Near Munich Germany
Joined May 2003
961 Posts
Pics

hi darrell,
attached some pics of Esxalibur III.
unfortunately the quality is not as desired, but i don`t have paint and the photoshop trial isn´t suppórting "rescale"- just "cutouts". Thus i had to use the smallest files. for now they will just have to do.
greetings from munich
flo
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