Tuesday, January 21, 2014

Mi-6 - history

Tuesday, October 9, 2012

Fenestron

A Fenestron (or fantail, sometimes called "fan-in-fin") is a shrouded tail rotor of a helicopter that is essentially a ducted fan. The housing is integral with the tail skin and like the conventional tail rotor it replaces, it is intended to counteract the torque of the main rotor.
Full article on Wikipedia: http://en.wikipedia.org/wiki/Fenestron

Interesting picture - Mi-24A with the fenestron:

Friday, October 5, 2012

Autorotation

Using autorotation helicopter can be landed safely in the event of complete engine failure. Consequently all single-engine helicopters must demonstrate this capability in order to obtain a type certificate.

The height–velocity diagram (for a specific helicopter) shows the flight profiles, where autorotation can be safely performed.

Articles on Wikipedia about autorotation and H/V diagram:

 

If main engine or both engine fail, but helicopter was operated in the safe H/V profile, then it is possible to land safely. It is a safety feature of hely, so don't be afraid to fly! ;)

Wednesday, October 3, 2012

Tuesday, October 2, 2012

Helicopter Rotorhead Gallery

E.g. Kamov Ka-26:

Ka-26 D-HOAZ

and more at: http://www.b-domke.de/AviationImages/Rotorhead.html

Kamov Ka-26 rotorhead looks very complicated. Would be nice to find a model of it to see how it works...

Tuesday, September 4, 2012

ImmersionRC


ImmersionRC is a developer and manufacturer of innovative equipment, used by hobbyists practicing 'FPV' (First Persion View, or 'Video Pilotage').

Several recent technological advances have enabled this, small (and cheap) video cameras, lightweight wireless video links, and high-resolution head-mounted displays.

ImmersionRC products include: 
  • Head Tracking
  • On Screen Display (OSD)
  • Antenna Tracking
  • Video Goggles
http://www.immersionrc.com/ also contains links to the retailers in The Netherlands:

Team BlackSheep (Europe) 
Globe Flight (Germany)
First Person View (UK)
Flash RC (France)
StudioSport (France)
RCtechnics (Netherlands)
E-Store Rotterdam (Netherlands)

Wednesday, August 22, 2012

rc-fever is not publishing bad reviews?

Some time ago I bought Upper Blade Motor replacement for my UDU U806. The motor I received doesn't really match one in the heli. I wrote a review:


It was send for approval to webmaster:

But it has never been published!

http://www.rc-fever.com/helicopter-spare-parts/by-brand-t-z/udi-helicopter-parts/udi-u806-parts/udi-u806-16-upper-blade-motor.html

UPD: my feedback was finally published but it took a long time...