Bölkow and MBB designations

[Bill Walker]

Yes.

 

[fightingirish]

Mockup MBB Nurtanio (later: IPTN) BN-109,
Source: http://www.skyscrapercity.com/showthread.php?t=1060129&page=27

One possibility is a light training helicopter to be developed in co-operation with MBB's Indonesian licensee Nurtanio. The BN109 is a 1-2-tonne two/three-seat helicopter in the Hughes 300/Robinson R22 class. Intended to cost less than $500,000, the BN109 could be powered by a car engine. MBB and Nurtanio plan to conduct a market feasibility study this year. If the project goes ahead, Nurtanio would largely be responsible for production, while MBB would exploit the remotely piloted vehicle applications of the small helicopter.

Source: http://www.flightglobal.com/pdfarchive/view/1984/1984%20-%200882.html

Defence Modernization, Secret Deals, and Strategy of Nations: A ..., Part 1 from Attar Chand

 

[hesham]

Great find my dear Rolf.

 

[hesham]

By the way,

the Bolkow flying jeep was called P-166/3.

https://en.wikipedia.org/wiki/B%C3%B6lkow_P-166/3_Flying_Jeep

 

[lippischh]

This seems to be the Bolkow P 110 ?!

Found on this page : http://discaircraft.greyfalcon.us/wespe.html

 

[Hood]

Yes, that is the Bolkow P.110.01. Powered by a single 6,800lb Orpheus 12, 3.32m wingspan and 4.09m length, 3,923kg weight. Other engine configurations were studied.
Source: Vertical Take-Off Fighter Aircraft by Bill Rose.

 

[lippischh]

Thanks Hood, is there any other known drawing of it? I'm intending to model it.

 

[Hood]

No, I've never seen a different drawing of the 110.01, nor any of the other two proposed layouts.

 

[Grey Havoc]

AST300, otherwise known as the Airbus Special Transport. Late 1980s proposal by MBB for tanker conversions of the A300B4 airliner for the Luftwaffe and other air forces.

Source: https://www.secretprojects.co.uk/forum/index.php/topic,29192.msg333575.html#msg333575 (h/t Harrier & Archibald)

 

[persil]

Regarding BN-109, a new picture of it just surfaced: https://www.jetphotos.com/photo/10721194

 

[Kiltonge]

"Family portrait" of the Bo 106 ( foreground ) and 105. The wider fuselage ( 6.9ft vs 5.2ft ) of the 106 reduced cruising speed by about 4kts.

Unclear why it wasn't brought to market. Initially it had the same MTOW as the 105C but plans were in place to increase weight and power, per second attachment.

 

[Kiltonge]

Model of Bo 70 standing on a section of MBB's Heidelberg rotor blade proposed for the type. Blade manufactured by Siebel.

Tail rotor for directional control rather than counter-torque.

 

[hesham]

Model of Bo 70 standing on a section of MBB's Heidelberg rotor blade proposed for the type. Blade manufactured by Siebel.

Tail rotor for directional control rather than counter-torque.

I sent it here,

https://www.secretprojects.co.uk/threads/b%C3%B6lkow-helicopter-projects.3144/#post-356300