Center gear braking
Thread Starter
Center gear braking
On aircraft such as the DC10-30 and A340
with a center gear bogie assuming they
are equipped with brakes this configuration
prompts a question
Obviously pressing the left brake activated
braking on the left wheels and the same on
the right
So how are the brakes activated on the
center gear?
I suspect any time either set of brakes are
activated ?
with a center gear bogie assuming they
are equipped with brakes this configuration
prompts a question
Obviously pressing the left brake activated
braking on the left wheels and the same on
the right
So how are the brakes activated on the
center gear?
I suspect any time either set of brakes are
activated ?
Obviously pressing the left brake activated braking on the left wheels and the same on the right
So how are the brakes activated on the center gear?
I suspect any time either set of brakes are activated ?
So how are the brakes activated on the center gear?
I suspect any time either set of brakes are activated ?
Can anyone confirm?
Further to the above - on the A340-600 the left brake pedal activates the forward centre gear brake and the right pedal the aft centre gear brake. Odd I know but it is french designed!
The arrangement you mention gives half braking on the centre gear in the event of a full left or full right braking action turn, and full braking on the centre main in the event of full symmetrical braking, which seems reasonable. I suppose they could have split the centre main brakes left and right instead of front and rear. Perhaps there was some other consideration, leading them to keep the centre braking forces symmetrical around the gear leg?
Splitting the centre main brakes in this way makes for a very simple hydraulic arrangement. Anything else would require extra valves and possibly electronics to achieve the same purpose.
Splitting the centre main brakes in this way makes for a very simple hydraulic arrangement. Anything else would require extra valves and possibly electronics to achieve the same purpose.
Not necessarily; s/he might be American? They spell centre ‘center’.
Hi Meikleour
All oleo type landing gear legs need a torque link (or splines) to maintain wheel alignment during compression or extension of the leg.
Braking the left or right wheels separately on the A340 centre gear would probably induce unacceptably high torsional stresses on the leg.
All oleo type landing gear legs need a torque link (or splines) to maintain wheel alignment during compression or extension of the leg.
Braking the left or right wheels separately on the A340 centre gear would probably induce unacceptably high torsional stresses on the leg.