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Posted by Herb | Apr 02, 2011 @ 01:48 PM | 93,454 Views
Started to look at the various components last week ...

This thread in German

It's a big all fg-airex-sandwich carbon composite airframe for twin 90mm fans, made by Airworld Germany;

http://www.airworld.de/Englisch/Index.htm

the rest of the components, well you can guess where most of them (esc, batts) will come from ...

Edit : Me-262 flyby added March 2012 :

Me-262 Airworld (twin 90mm edf) flyby (0 min 18 sec)


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Posted by Herb | Nov 09, 2010 @ 07:05 PM | 301,235 Views
I just received this new CMP / CMpro T-45 arf, I have the CMP Spitfire and I like it ...

This thread in German or Italian

It is almost identical to the Hobbyking Hawk (also made by CMP or China Model Products : http://www.cmpairplane.com/ ) up to the paint

http://www.cmpairplane.com/

http://www.nitroplanes.com/cmpfitedfjet.html

http://www.hobbyking.com/hobbyking/s...40mm_ARF_.html

http://www.scaleflying.com/BAE-HAWK-...F-_p_2506.html

http://hobbyfly.de/en/rc-airplanes-1...40mm-6685.html

The Spit is a bit on the heavy side , but it seems now this Hawk is made relatively light(er) ...

The wing area on the T-45 is 24dm^2, so that makes the wing +33% larger in surface than the Sapac T-45.

Wingspan = 114 cm = 46 ''

Length = 122 cm = 49 ''

Wing area = 24 dm^2 = 372 sq in

Approximate scale 1:9

Est. weight rtf 7.2 - 8.0 lbs


CORRECT CG AFTER ONE YEAR OF FLYING:
ca. 110-115 mm from wing leading edge at root (see picture below)


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Short video (8S, HET fan) Dec. 2011 (more T-45 videos on youtube under user "Herbzqy" )

T-45 Goshawk 90mm EDF by CMP (Neu 1515 on 8S) (3 min 0 sec)


Short video (6S, WeMoTec fan) Nov. 2011:

T-45 Hawk 90mm by CMP (BAe Hawk) Aerobatics (3 min 22 sec)
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Posted by Herb | Aug 22, 2010 @ 01:22 PM | 8,187 Views
Two friends at the field (Art and Don) already have one of these, they fly pretty well, the only changes on theirs was the fan and 3x good sized metal gear servos for the retracts.

I got the F/A-18 airframe only (with plastic wemo-copy fan & mechanical retracts).

Built it Thursday and Friday night and flew it twice today (Sunday) .

I use three metal gear Hitec HS81 servos for the retracts & moved the twin elevator servos under the fins.

The mech. retracts on mine seem to work fine so far, after patiently taking care of all the little mechanical adjustments.

I use a separate beefy 800Ah JR receiver battery.

I tossed the included BananaFan (cheap plastic WeMoTec copy) and used a WeMoTec Midi pro instead with a $19 HC B36-55 kv=1800 inrunner motor on 6S 3300's : https://www.rcgroups.com/forums/show...pp=100&page=13

These motors are now on their second year of flying in the Midi...

Mine weighs rtf on 6s 3000's (Turnigy 40C) 77.5 oz = 4.84 lbs = 2.20 kg , with ca. 1600W.

Guy H took these very nice inflight pictures with a Canon 7D. Thanks Guy

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Posted by Herb | Aug 11, 2010 @ 04:03 PM | 22,193 Views
I got this one from Gregg for $40. It was a v1 version, so I got a set of FG ducts from sapac, instead of those comical vacuformed plastic ones. The rest of the ducting I did as usual with mylar.

It's a nice weekend flier, the wing's a bit too thin & flimsy for retracts so I eventually used fixed gear instead (kiss principle).

I've had about 15 flights on it, and it's nice and fast on ca. 1200W. But a bit of a vicious tipstaller in tight turns, if you slow it down too much.

Guy H took the very nice in-flight pictures below (Canon 7D).

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Posted by Herb | Mar 24, 2010 @ 02:47 PM | 61,713 Views
Just started my latest scratch build project, a 1/8-th scale MiG-21 MF (Fishbed J) EDF for a 101mm fan.

This thread in German

So far I managed to find some time to patiently cut out all the fuse formers and trial fit the fan ...

It will eventually be powered by a Neu 1515 motor in a 101mm fan on a 9S 4000 setup; depending on final weight (< 9 lbs) power will be in 3.0-3.5 kW range.

Inspiration for the MiG-21 project came from another avid edf-er JC (Bidule),

https://www.rcgroups.com/forums/show...1177686&pp=100

I found this particular plan on e-bay:

http://cgi.ebay.com/ws/eBayISAPI.dll...m=200453935022

The plan is nice and seems very well made ... will know more about the quality after the MiG has flown

Edit Jan 7 2011 : Video of the second flight of the MiG-21:

MiG-21 MF (Fishbed J) 100mm EDF (4 min 4 sec)


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Posted by Herb | Oct 17, 2009 @ 03:21 PM | 69,867 Views
Here's my latest project, a large FlyFly (or Fly Fly ) F-86 Sabre a la JePe Fast Foam,

http://www.flyflyhobby.com

http://www.jepe.org/FastFoam/sabre/sabre.htm

http://www.hobbytopgun.com/PC/F-86.htm

The model's wingspan is around 55.9 inches, the length around 55.5 inches.

The original Sabre had a wingspan of around 37 feet, so that gives the model a 1:7.9 scale.

I entirely glassed the foam airframe using multiple layers of 3/4 oz glass cloth & laminating epoxy.
Now it flies on a 90mm fan on 9S lipos (4000mAh 40C's) at ca. 2900 W.
Weight rtf is around 8.3 lbs, so it's rather lightweight for its size - but nevertheless still reasonably fast and jet-like.

Here are the original instructions. An inspiration on the surface prep was the Dutch Master JePe Fast Foam site: http://jepe.org/

The main motivation for the project was to have a nice lightweight F-86 Sabre in the 90mm fan range, suitable for some
moderate aerobatics.

F-86 Maiden video (Jan 2010), lands like a glider :


F-86 Sabre EDF (JePe Fast Foam) FlyFly (2 min 50 sec)


Edit Sep 7: Added Guy H's pictures (Canon 7D) .

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Posted by Herb | Jun 11, 2009 @ 12:22 AM | 48,682 Views
A few pics of my finished F-16, DS-51 fan, 12S and Plettenberg HP 220/50/A3 S P4 (50mm rotor), more details here:

https://www.rcgroups.com/forums/show...&page=5&pp=100

Flight video :

F-16 Thunderbirds (Tamjets) Schübeler Fan 12S (HD) (4 min 33 sec)


Retract operation video:

F-16 EDF retract & gear door operation (0 min 21 sec)
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Posted by Herb | Nov 19, 2008 @ 08:05 PM | 49,149 Views
Pictures of the prototype Jepe Mini-Viper (aka Pyranha) ; Jepe sent me a prototype.

Very fast but also quite small...

Powered by a MiniFan 480 + Mega 16/20, more details here

http://www.jepe.org/FAQ/faq.htm
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Posted by Herb | Jan 28, 2008 @ 01:08 PM | 54,964 Views
Aeronaut Rafale twin 90mm, my second one. Twin 90mm WeMoTec Midi fans with Kontronic Fun 500-19 motors and twin Kontronic Jazz 80 controllers.

Weight rtf ca. 3.39kg (7.46lbs), power 2000-2600 Watts depending on Lipo setup.

http://www.aero-naut.net

http://www.kontronikusa.com

More details on the Aeronaut Rafale here and here, and here:

http://www.rc-network.de/forum/showthread.php?t=9823

Recent video (Jan 2010):

Aeronaut Rafale twin 90mm EDF 2010 (2 min 22 sec)


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Posted by Herb | Oct 26, 2007 @ 03:31 PM | 52,800 Views
Messerschmitt Me P.1101 based on the glass kit by Steve Neill. Powered by a Plettenberg motor in a WeMoTec HW-609 75mm fan.

A few more details here and here.

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Posted by Herb | Oct 21, 2007 @ 03:42 PM | 51,638 Views
Electric conversion of a Stein Model (SteinModel) Focke-Wulf Ta-152, Mega 30/3 brushless dd on 3S and GP lightweight mechanical retracts. Faaast.

More details here: here and here.

Focke-Wulf Ta-152 video

Manufacturer's web site: www.steinmodel.cz

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Posted by Herb | Oct 21, 2007 @ 03:21 PM | 47,971 Views
Scratch-built MiG-29 Fulcrum for twin Plettenberg motors and twin WeMoTec Minifans, from Offshore plans and original 3-d views.

A few more details here and here.

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Posted by Herb | Oct 21, 2007 @ 03:06 PM | 45,833 Views
Beautifully molded FG fuse MiG-15 bis with balsa sheeted wings, very fast (> 130 mph) and rock stable edf jet. Hacker B50 brushless motor in the WeMoTec HW-609 fan. At some point we were flying a whole squadron of them. More details here here and here.

K&A website: www.kamodels.com

2004 Video:

MiG-15 high performance EDF 75mm (1 min 2 sec)


Newport MiG Patrol video (2003) :

(Gregg F [all red], Doug A [polish camo] and myself [silver with red tail])



MiG-15 EDF Newport Beach Patrol (5 min 32 sec)
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Posted by Herb | Oct 21, 2007 @ 02:49 PM | 37,596 Views
I had one of the first kits when JePe came out with it. An easy build and a very fast flier, neutrally stable - just like the original ones according to an A-4 Marine test pilot I met one day at the field.

JePe carbon fan, Hacker B50 motor, Hacker Master 77 esc, a very nice setup.

More details here and here.

JePe web site:

http://www.jepe.org/a-4/a-4.htm

http://www.jepe.org/FAQ/faq.htm
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Posted by Herb | Sep 10, 2006 @ 04:18 PM | 40,221 Views
MiG-15 by WeMoTec

WeMoTec MidiFan, Hacker B50-18S and Hacker Master 77A esc.
6S Kokam 3200 Lipos. Weight rtf 1.79 kg, ca 1600 Watts on takeoff. More
details here.

Video:

MiG-15 video (2006)

www.wemotec.com
www.hacker-motor.com

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Posted by Herb | Sep 10, 2006 @ 04:01 PM | 38,143 Views
F-86 Sabre by Kyosho

WeMoTec HW-620 fan, Hacker B50-18S and Hacker Master 77A esc.
6S Kokam 3200 Lipos. Weight rtf 2.16 kg, ca 1500 Watts on takeoff depending on battery type. After two years of flying with fixed gear, I now installed Springair 602 air retracts. More details here.

Video:

F-86 Sabre "Skyblazers" by Kyosho (1 min 56 sec)


F-86 Sabre video (2006)

www.kyosho.co.jp

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Posted by Herb | May 20, 2006 @ 02:36 AM | 37,724 Views
Dassault Rafale C by Aeronaut

Lightweight composite airframe, twin WeMoTec midifans, twin Mega 20/3 and twin Hacker Master 70A esc's with large aluminum cooling fins for reliable partial throttle operation, 12S Kokam 3200 Lipos, Springair 602 pneumatic retracts. Weight rtf 3.56 kg, ca 2200 Watts on takeoff.

More details here and here.

Video:

Rafale twin 90mm RC EDF by Aeronaut (3 min 10 sec)


Rafale twin 90mm EDF by Aeronaut (1 min 20 sec)
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Posted by Herb | May 10, 2006 @ 10:25 PM | 30,581 Views
JePe F-16 C

Lightweight composite airframe, JePe carbon fan, Hacker B50S, Hacker Master 77A esc, PQ 3100 6S Lipos. Weight rtf ca. 62 oz, 1050 Watts. More details here.

http://www.jepe.org/FAQ/faq.htm

Video:

F-16 by JePe EDF - dolly takeoff (0 min 40 sec)


F-16 EDF 90mm by JePe rog (0 min 57 sec)
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Posted by Herb | May 10, 2006 @ 10:15 PM | 26,639 Views
F9F Panther by Aeronaut

Lightweight composite airframe, JePe carbon fan, Hacker B50S, Hacker Master 77A esc, 6S Kokam 3200 Lipos and Springair 602 pneumatic retracts. Weight rtf 83 oz, ca. 1150 Watts. More details here and here:

http://www.rc-network.de/forum/showthread.php?t=9830

Video:

F9F Panther EDF 90mm by Aeronaut (1 min 12 sec)


Panther video (2005)

www.aero-naut.net
www.wemotec.com
www.hacker-motor.com

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