• Hi Guest! Forum rules have been updated. All users please read here.

New generation of NPO Molniya triplanes

flateric

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
9,153
Reaction score
1,297
At MAKS Monliya have presented a family of triplanes, stating that they are 'only design bureau in Russia currently studying triplanes'. Note SML-2, fruit of cooperation with 'Russian Aviation Consortium', and M1-012N - follow-on of Molniya-1 (actual Molniya-1 was used as scrap mockup on fire brigade trainings before MAKS, imitating aircraft crashed into Tu-134 and causung fire to both of them).
 

Attachments

  • NPOMolniyaTriplanes01s.jpg
    NPOMolniyaTriplanes01s.jpg
    402.6 KB · Views: 397
  • NPOMolniyaTriplanes02s.jpg
    NPOMolniyaTriplanes02s.jpg
    492.1 KB · Views: 373
  • DSC02080s.jpg
    DSC02080s.jpg
    102.1 KB · Views: 309

hesham

ACCESS: USAP
Senior Member
Joined
May 26, 2006
Messages
27,787
Reaction score
4,941
Hi,

http://archive.aviationweek.com/image/spread/19910923/32/2
 

Attachments

  • 1.png
    1.png
    533.6 KB · Views: 156
  • 2.png
    2.png
    536.3 KB · Views: 147

riggerrob

I really should change my personal text
Senior Member
Joined
Mar 11, 2012
Messages
1,355
Reaction score
775
Dear flateric,

May I make a minor "poke" at terminology?

In the West. those are called "three surface" wings. Many 3 surface prototypes have flown, but only the Italian Piaggio Avanti made it to production.
Aerodynamically, most (e.g. Piaggio Avanti) three-surface configurations are more like conventional airplanes with a horizontal tail "lifting" downwards, a conventional wing lifting upwards and a canard also lifting upwards.

Avanti has three surfaces because the main spar is routed aft of the cabin pressure vessel, making it nose-heavy. Piaggio added a second lifting surface to lift the nose and restore balance. The canard has no moving controls, so it is purely a lifting surface ... an extra bit of the main wing in an unusual location.
IOW Piaggio SPLIT the main lifting surface into two pieces to route them around the cabin, but still keep the centre-of-lift close to the centre-of-gravity.

Other three-surface planes may have a second lifting surface on the nose (e.g. Wren STOL conversion of Cessna 182) with control surfaces, but those control surfaces are merely flaps (only deflect downwards) to increase lift at low airspeeds. In the case of Wren STOL, they need more nose-up trim at slow landing speeds.
 
Last edited:

AeroFranz

ACCESS: Top Secret
Senior Member
Joined
May 4, 2008
Messages
2,319
Reaction score
250
I must confess i clicked on the link expecting a modern Dreidecker or something...:D
But yes, triplane is technically correct, but three lifting surface is less ambiguous.
 

Cy-27

ACCESS: Top Secret
Senior Member
Joined
Jan 28, 2008
Messages
584
Reaction score
249
Attached is a photo of the Molniya 1, similar to the first image in reply #2.

It was taken by me at Maks'95 at Zhukovsky and carried the markings RA-103. The Buran shuttle is behind.

I always regarded it as a pusher-canard rather than a triplane layout.
 

Attachments

  • RA-103_Molniya_1_[Zhukovsky_25_August_1995]_S11.jpg
    RA-103_Molniya_1_[Zhukovsky_25_August_1995]_S11.jpg
    984.6 KB · Views: 29

Similar threads

Top