Jump to content

Sign in to follow this  

Dimpled aircraft, are there any?

Recommended Posts

Just being watching a TV program on the famous Dam Busters raid during the WWII, and how they came to design the bouncing bomb.The conclusion of Barns Wallace tests, found that if a object is dimpled, it would travel faster & straighter.Even though this final design was never used by them, mainly down to time constraints.The example of dimples was well demonstrated with golf balls.A golf ball with no dimples; but exact in every other way to a normal golf ball only went half the distance, 150yards compared to 300 yards.So, my mind asks, are there any aircraft that have being tried with a dimpled design?It seems like there would be compelling benefits to do so, i.e less drag, less fuel, better aerodynamics. I imagine this would only be good for subsonic speeds, long distant aircraft.A Boeing 737 or 747 for example.ThoughtsJohn

Share this post

Link to post

This is better for a ball then a tube with the long axis being pushed through the air. Aircraft airfoils and fuselages you want to have a laminar flow not a turbulent flow. The golfers use the rotation and dimples on the ball to produce lift though. They do this in a different way by giving the ball backspin and producing what is known as the Magnus Effect. When backspinning the new force on top of the ball will be reduced static pressure and an increase of static pressure on the bottom producing a net positive gain in lift increasing the altitude and therefore some more distance.

Chris Miller

Share this post

Link to post

Thanks Chris, I thought I was onto the next worldwide patent there :)Once you mentioned tube though, i got itIt's great how, the mind can throw some weird visions together, & maybe, just maybe come up with something new.I guess in a sense, Barns Wallace, had one of those eureka moments, even though it was a Navy idea to skip cannon shells on the sea, to hole the hulls of enemy wooden ships Ahh well, back to putting my thinking cap on:-wedge John

Share this post

Link to post

Fortunately for the passengers aircraft don't spin like a golf ball!

Gerry Howard

Share this post

Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
  • Tom Allensworth,
    Founder of AVSIM Online

  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.

    $3,970.00 of $25,000.00 Donate Now
  • Create New...