Sonntag, 25. Dezember 2011

MPX EasyStar2

Tec Specs (of my Stock RR Version):
Wingspan 1366 mm
Length 977 mm
Motor: original is: PERMAX BL-O 2830-1100
   (Upgrade: NTM2826-1200/17345NTM Prop Drive Series 28-26A 1200kv 250Watts!
Prop: orig. Folding 7x6"
   (Upgrade Prop: 8x6 trimmed down a bit (und cut some foam out of the fuselage as well...)
weight starting at: 700 g my act FPV Version: 995gr (with 270gr battery)
Flächeninhalt ca. 28 dm² (Flügel + Höhenleitwerk, ohne Rumpf)
Flächenbelastung ab 25 g/dm²

LINK: Testbericht

Maidenflight VIDEO here

Sonntag, 9. Oktober 2011

FPV Setup (Groundstation, Longrange Tower)

RCSchims FPV Groundstation:

This is my FPV videotower. It has an diversity controller (yellowjacket Pro 2,4GHz), two patchantennas (8 and 9 dbi circular polarized), an SD Card recorder and a 5000mah 3cell lipo powering this all.

Thomas Scherrer's LRS <-> 35MHz Futaba FF10

Diskussion über dieses Thema in deutsch (auf der FPV-Community
RCGroups Diskussion
Update: Scherrer himself "approved" my solution - so the next testflight should proove if it works under real conditions ;-)

I ran into serious cable issues with the connection of my Futaba FF10 via the trainerport to the Longrange system (Scherrer LRS). First I had the box directly fed from Futabas Battery and mounted on the back of the TX. This has two disadvantages:
- Futaba is RF sensitive and starts to beep if the rear sliders are in the middle position
- The LRS Box distorts the image on the Fatshark goggles if to near (within 1m)

So I mounted LRS box on a tripod, used an own 3cel battery for power and a long cable to the trainerport. This worked the last few month of FPV but it also has one problem: if used often the trainerport cable is worn qickly and this can lead to loss of control in the air (if you loose connection between LRS and Futaba).

Wireless LRS Uplink Twoer:
- Futaba FF10 with 35Mhz ch61 sending the signal of 35MHz to:
- ACT 4dsl receiver with PPM sumsignal option (often used on mikrokopters) this is connected to the LRS Box (PPM and ground)
This way I have no cable issues and no fear about a weak cable connector / soldering...
Just my Futaba and the LRS tower some distance away. To protect my LRS uplink from other RCers that might also use 35MHz and same channel I would use only a short cable on the ACT RX - so it "hears" only my signal. I heard of this idea but now I had a serious reason to try it out - and it worked on the first attempt! Great!

Here are 2 pics showing the LRS tower with my wireless option:

As you can see I tried to cover the important little 35mhz receiver with foam to protect it from the "daily fpv use". I hope nothing wears up here too fast. Also I had to use a seperate battery pack to power the 35mhzRX.

Donnerstag, 18. August 2011

Freitag, 15. Juli 2011


Nachdem meine Setupvideos nicht so leicht gefunden werden gibts hier eine Sammlung meiner Tipps / Since the setup-vids seem to be hard to find I list them here:

Samstag, 25. Juni 2011

Techtipp: Ortungspiepser / Plane-Finder

Update: da es den alten Pieper anscheinend nicht mehr gibt, hab ich hier einen neuen gefunden:
Since the old beeper can't be found anymore - I put the link to a different one:
Ortungspieper / Emergency beep locator

gefunden bei
Produkt: "Der große Ortungspiepser" 19,95€

Den Ortungspiepser hab ich nach meinem Crash mit dem Maxiswift in den Wald gekauft (bei der Suche damals hatte ich mir das geschworen :-)
Er wird entweder auf einen freien Kanal gehängt - hier reagiert das Ding entweder auf Stromausfall mit Piepsen, oder wenn man auf diesen Kanal einen "Vollausschlag" macht (diesen als Failsafe bei diesem Kanal am Sender einstellen). Durch die eigene Stromversorgung piept der im Notfall auch dann noch, wenn die Hauptbatterie schon "ausgestiegen" ist!
Oder man verwendet z.B. den Seitenruder Kanal mit - dann piepst der halt auch in der Luft, wenn man einen kompletten Ausschlag auf dem Seitenruder lenkt (was eh nicht so oft vorkommt).

Insgesamt bin ich recht zufrieden mit dem Teil - habs zum Glück bis jetzt noch nicht gebraucht. Aber alleine ein Flug über hohem, dichten Gras/Feld geht so schon viel lockerer ;-)

This is a simple beep locator. It's fed by an own little battery so it won't go offline if you crash and your plane's main battery ejects...
It can be used on an existing channel (rudder for example) and here it will beep on full rudder (which should be the failsave-setting here) or if the power fails.
You can also use a separate channel dedicated to this beeper.

Freitag, 27. Mai 2011


Gewicht/weight: FPV Version inkl. 2500er Akku: 1,2kg
Erstflug: 17.5.11

Power at hover: 18 amp (in sum, not each motor!)
Flighttime: 7,5 min / 1400mah. at hover

The frame is made of aluminium and fibreglass G10/G 11 1mm tick
It has KK multi-copter controller,
- 18Amps HobbyWing Pentium ESC's
Cont Current: 18A
Burst Current: 22A
BEC Mode: Linear
BEC : 5v / 2A
Lipo Cells: 2-4
NiMH : 5-12
Weight: 19g
Size: 24x45x11mm
- Keda 920kv (Hacker style) motors
You can use 9x4.7 or 10x4.7 SF propellers

AUW weight with 2200mah 3s bat. is just under 1kg.
It is capable to lift some extra 700gr weight,but for nice and comfortable flying I wouldn't recommend to exceed 300gr
Test flight with GoPro on board
Assembly in timelapse (not built by myself!)

Sonntag, 20. Februar 2011

Hangar Video

Viel Spaß bei diesem kleinen Rundgang durch meinen "Hangar":

Hangar Link
Have fun watching this small introduction to my planes and helis.