Aerospace Engines A to Z
Aerospace Engines A to Z

Updated: 25-Jan-2020

S.S. Balandin built some very interesting radial engines.

Balandin - OMB
"OMB"

-Balandin made its first engine based on the M-11's cylinders and pistons.

-From 1941, they started a new engine family with well known engines like the MBs, but based on the system that we have seen in the picture above.

-They were “Conrod-free” type engines. The first crankshaft is floating and by means of gear it drives the main shaft, though we see that it is divided in a front and rear part.

-This four-cylinder X-engine delivers 90 CV.

Balandin - MB-4
"MB-4"

-The MB-4, was based on the OMB principle, giving 140 CV. The MB-8 was a double MB-4 delivering 280 CV.

Balandin - MB-8
"MB-8"

-An improved MB-4 version was the MB-4b X-engine that reached 200 CV, with the same 4 cylinders.

-The same was done with the 8-cylinder, MB-8b, to reach 400 CV.

Balandin - MB-4b
"MB-4b" (PiP)

-Included in its projects were the 12-cylinder OM-127o and the 8-cylinder OM-127RN, giving 2,100 CV and 3,200 CV respectively.

Balandin - OM-127RN
"OM-127RN"

-The M-127 versions went increasing upto 9,000 CV and the M-127k upto 10,000 CV.

-NOTE: This information was provided to us from Vladimir Kotelnikov's book "Russian Piston Aero Engines", currently available in L'Aeroteca. (PiP).

Engines of BALANDIN

Model: M-127, -K

Model: MB “X”, 90 CV

Model: MB-4, 140 CV

Balandin - MB-4

"Balandin - MB-4"

Model: MB-4b, 200 CV

Balandin - MB-4b

"Balandin - MB-4b"

Model: MB-8, 280 CV

Balandin - MB-8

"Balandin - MB-8"

Model: MB-8b, 400 CV

Model: OM-127, -RN (12 cils. en “X”)

Balandin - OM-127RN

"Balandin - OM-127RN"

Model: Up-rated M-11

The author of this edition of Aeroengines AtoZ, through Aeroteca, collaborated on Version 2 of this video, which is presented here.

To understand the operation of the connecting rods, the 1929 Continental R 670 single-cylinder engine was chosen.

A demonstration of Version 3, improved at the author's suggestion, is also available on YouTube at a later date. This version shows bronze valve guides, improved valve spring movement, and the split crankshaft counterweights and front bearing balls also move.

The design is from Juan Soler, Sant Cugat, Barcelona

Below we show a flash of version 3

Counting also with the coloboration of JMC of Enginys Mecanics in Mataro, Barcelona