Rolls-Royce Archives
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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).
Notes on 'Jellying' tests conducted on the first PII chassis (69 W.J.) at Springfield.

Identifier  ExFiles\Box 28\5\  Scan037
Date  4th April 1930
  
Rm.{William Robotham - Chief Engineer}
Jellying.
x457.-
Following notes on 69 W.J., first PII at Springfield may interest you.
Chassis had side wheel carriers which were however not used, a spare wheel being always dumped in the rear.
① Chassis with ballast box - no jellying.
② Fitted with rough touring body without subframe, with fabric scuttle joined to dash without any friction or stiffness.
- Jellied considerably.
③ Rear of car loaded with 1000 lbs in ballast bags to bring frame down to correct level. - jellying reduced.
Temporary fabric front mudguards were used.
Tyre size 21x7, 20x7, & 19x7 all straight side seem to make no difference.
OY Ap 4/30
  
  


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