Home Contact Sitemap login Checkout

STOLSPEED
 Vortex Generators   
Performance Enhancement for Light Aircraft


  
stolspeednew.shoutcms.net
  • Home
  • BUY NOW STOLSPEED VORTEX GENERATORS
  • Benefits Vortex Generators
  • Theory Vortex Generators
  • Advantages Stolspeed VGs
  • Aircraft Using Stolspeed VGs Testimonials
    • Aircraft Using Stolspeed VGs Testimonials
    • Allegro
    • Australian Lightwing
    • Avid Flyer
    • BD-4
    • Bearhawk
    • Belite Ultracub
    • Breezer
    • Bush Caddy
    • Bushcat/Cheetah
    • Cessna 150
    • Cessna 172
    • Cessna 182
    • CGS Hawk
    • CTSW Flight Design
    • Cub
    • Escapade
    • Express - CT
    • Fisher Dakota Hawk
    • FK14 Polaris
    • Flying Flea
    • A22 Fox Bat
    • Foxcon Terrier 200
    • Glasair/Sportsman
    • Harmon Rocket
    • Husky Chaser
    • Jabiru
    • Jodel
    • Just Aircraft Superstol / Highlander
    • Kelleher Lark
    • KIS4 Cruiser
    • Kitfox
    • Kolb
    • Lambada
    • Lancair Legacy
    • LM1-2PW (75% S Cub)
    • Long Eze
    • Maggie (own design)
    • Motorcycles
    • Pazmany
    • Piper PA22/20
    • Rans S6 Coyote
    • Rans S7
      • Rans S7
      • S7 or Savannah ??
      • Opening Windows S7
    • RV6
    • Savannah
      • Savannah
      • Savannah Visor
      • Origins 701 <> Savannah
      • Flight Testing Slats vs VGs
      • CH701 >< Savannah
      • Opening Windows
      • Placing VGs on a Savannah
    • Skyranger
    • Sonex
    • Sportcruiser
    • Storm
    • SuperCub
    • Technam P-96
    • Zenith 601 HD (UL)
    • Zenith 601 HDS
      • Zenith 601 HDS
      • 601 HDS Video
      • STOL in 601 HDS
      • Flying in the Swiss Alps
      • Viktor's Sahara Desert flight
      • Viktor's North Cape Flight
      • Placing VGs on the 601
    • Zenith 601XL
    • Zenith CH701
      • Zenith CH701
      • PegaStol Wing
      • Cut-Away
      • Tail Feathers
      • Longer Wing
      • 701 Door Warning
      • Origins 701 <> Savannah
      • Letter to Zenith
      • Zenith List
      • Placing VGs on the 701
    • Zenith 750
    • Zenith 750 Cruzer
    • Zenith 801
  • Design Stolspeed VGs
  • Installing Stolspeed VGs
  • Flight Testing
  • Videos of Testing Vortex Generators
  • Slats v/s VGs
  • Flying Adventures
    • Flying Adventures
    • '19 - Flight to the Farthest Corner of Australia
    • '18 - High Clearance Trail Bike to South Australia
    • '17 - Flight to Arnhem Land
    • '12-'13-'14-'15 Flying roadtrips USA
    • '11 Western Australia Flight
    • '11 Tasmania
    • '10 Flight to The Centre
    • '09 Tailwinds to Birdsville and Back
    • '09 Flight to the Bight and the South Coast
    • '09 Water Everywhere
    • '08 Camel Cup
    • '08 Coast to Coast by Rans S7
    • '07 Channel Country Trip
    • '07 Coober Pedy Trip
    • '06 Tasmania Trip
    • '05 No Crocs
    • '05 Flying Backwards
    • '95 Beaver to Birdsville and Back
    • New Years Flights
    • Planning Outback Trips
    • Outback Fuel
    • Packing light
  • Thermostat for 912
  • Props Comparison
  • STOL Flying
  • GDay I'm JG
  • My Aircraft
  • Contact
  • Allegro
  • Australian Lightwing
  • Avid Flyer
  • BD-4
  • Bearhawk
  • Belite Ultracub
  • Breezer
  • Bush Caddy
  • Bushcat/Cheetah
  • Cessna 150
  • Cessna 172
  • Cessna 182
  • CGS Hawk
  • CTSW Flight Design
  • Cub
  • Escapade
  • Express - CT
  • Fisher Dakota Hawk
  • FK14 Polaris
  • Flying Flea
  • A22 Fox Bat
  • Foxcon Terrier 200
  • Glasair/Sportsman
  • Harmon Rocket
  • Husky Chaser
  • Jabiru
  • Jodel
  • Just Aircraft Superstol / Highlander
  • Kelleher Lark
  • KIS4 Cruiser
  • Kitfox
  • Kolb
  • Lambada
  • Lancair Legacy
  • LM1-2PW (75% S Cub)
  • Long Eze
  • Maggie (own design)
  • Motorcycles
  • Pazmany
  • Piper PA22/20
  • Rans S6 Coyote
  • Rans S7
    • S7 or Savannah ??
    • Opening Windows S7
  • RV6
  • Savannah
  • Skyranger
  • Sonex
  • Sportcruiser
  • Storm
  • SuperCub
  • Technam P-96
  • Zenith 601 HD (UL)
  • Zenith 601 HDS
  • Zenith 601XL
  • Zenith CH701
  • Zenith 750
  • Zenith 750 Cruzer
  • Zenith 801
Home/Aircraft Using Stolspeed VGs Testimonials/Rans S7/Opening Windows S7 Print This Page

Opening Windows on a Rans S7

I always like to have the option of opening windows on my aircraft.
When flying low and slow I enjoy the open air feeling and the clear view.
It's essential for photography, since shooting thro the plastic so often gives disappointing reflections.

This is how I did it.  It was fairly easy to do, low cost, and effective in the air.

 

I did both front and rear windows.  The windows slide in channels.  There's enough room in that enormous S7 door for both front and rear windows to be open at the same time.  I didn't record dimensions, and I don't have access to the aircraft now, but this photo should give an idea of the spacing.

There are two tubular stiffeners, a vertical one at the back and the sloping one at the front.  These were needed to give some support to that large area, which is a bit floppy even before cutting the openings.  The position of the front one was chosen so that from the pilot's eye it concided with the front strut so as not to obstruct visibility.  They are riveted to the top and bottom and to the lower channel.

The channel is constructed of two strips of polycarb, one 20mm wide and the inner 10mm.  Thickness of the inner one is the same as the window material.  They are riveted together  with an 1/8" washer on the inside to spread the load.  I used the softest common aluminum rivets I could find and pulled them very gently...  That lip on the back edge of the window is needed to stiffen it, and was bent cold in an ordinary brake.  The channel is lubricated with the stuff for zippers on clothing.

The aluminum angle stiffens the front edge of the window.  Need to have a clearance as shown at the top edge of the window.  The windows slide smoothly, and have enough resistance to stay put anywhere. 

On the very first photo you can see a black spot at the right side.  That's a button of felt material stuck to the window to keep the sliding polycarb surfaces apart to avoid scratching.  There's a small draft into the pax seat that enters the back edge of the front window thro this space.  Could seal that by felt all the way.

 

The deflector at the front edge keeps the draft for the pilot comfortable.
With both windows open the circulation is, in the rear, forward, and out the front window.

The static port is in the wing, open to the cabin, so same pressure. 
Open the front window and the VSI goes up 4 kts.
Both front and rear windows it goes up 2 kts.
Just the rear window open, no change.

Enjoy that open air feeling!

JG