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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Issues with Ferobestos brake linings on the Phantom II, recommending a switch to Ferodo Bonded Asbestos for the rear brakes.

Identifier  ExFiles\Box 16\3\  Scan081
Date  6th February 1930
  
To BY.{R.W. Bailey - Chief Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
C. to Da.{Bernard Day - Chassis Design}

X7370
Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}4/MJ.6.2.30.

X7370
X7360
X7420
X3409

PHANTOM II REAR FOOT BRAKE.

In spite of the reduced direct braking leverage,
we are finding that the total travel on the Phantom II increases
too rapidly when Ferobestos is used.

We therefore recommend that Ferodo Bonded Asbestos
should be fitted to the rear foot brake shoes until we have
the increased area of brake lining which we are running on our
next 10,000 miles test car.

We suggest that the existing stock of Ferobestos
could be used for the hand brake liners to avoid scrap.

We are, of course, bound to continue to use all
Ferobestos on the front brakes in order to avoid squeaks.

Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
  
  


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