A guide to the different fins fitted to the Su-27
This is the basic fin shape fitted to the prototypes and some early production Su-27's
The production Su-27 did away with the anti-flutter weights and has a raked top
The two-seat Su-27UB trainer increased the fin area by means of an insert at the base.
The early Su-27UB prototypes had the same increased-area fins - but with the flat top and anti-flutter weights
as seen on the prototype single-seaters - in both cases the rudders remained the same size as the single-seater.
The IRKUT-built Su-30MKI/MKM/MKA uses the same Su-27UB fin - but has an increased rudder area.
The KnAAPO-built Su-35(T10M) had a completely new fin with a taller rudder and flat top
The same design is used on the KnAAPO-built Su-30MKK and Su-30MK2.
The one-off Su-27KUB used the single-seat fin - but with an incread-area rudder.
A similar fin is used on the new Su-35 (T10BM)
The ship-borne Su-33 uses the same fin as the single-seat Su-27 - but with a cropped fin cap for hangar clearance.
Note :- The Su-27IB (prototype of the Su-34)
originally used the taller, Su-27UB fin, but the production
Su-34 reverted to the shorter fin from the Su-27 single-seater.
Note that all the tires are the same size - 1030 X 350
Flanker wheel with central cooling hole - this is from the P-42
record breaker photographed at Zhukovsky