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Post by ZacYates on Apr 7, 2015 13:55:11 GMT 12
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Post by kiwithrottlejockey on Apr 7, 2015 14:07:02 GMT 12
Oil leaks beneath a Rolls-Royce powered aeroplane? I guess all is normal and well with the world....  Now if those Griffin engines had been manufactured by Packard, things may have been different!  |
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Post by suthg on Apr 7, 2015 15:05:06 GMT 12
Ancillary drives like the supercharger two speed clutches etc, must all have external lines feeding the remote bearings etc. I might be wrong... otherwise the oil return lines must be external as well? Vibration is a killer for external lines, unions and copper washer joints.
If I remember correctly,the 37L Griffon would have been quite a bit longer than the 27L Merlin had it not been for the relocation of certain ancillary drives like the distributors etc, it being quite a bit different in final design, having a different heritage than the Merlin as well - the Griffon came from the RR Buzzard engine of 1927, which then became the RR-"R" engine for racing (6" x 6.6" Br x St). The Merlin grew out of the 21L Kestrel as an oversize design by increasing bore from 5" to 5.4" and stroke from 5.5" to 6".
The other thing they did with the Merlin through design and versions, was to shift the external oil lines around the block and cylinders of the Kestrel to internal drillings for pressurised oil galleries. Eliminating some of the external oil leaks and engine failures.
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Post by nuuumannn on Apr 28, 2015 17:37:48 GMT 12
As one wag said about WW2 fighters, it's not dripping oil, it's marking its territory. Nice pics, Zac.
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Post by planecrazy on Apr 12, 2016 3:55:37 GMT 12
Great detailed pic's, thank you for sharing, interesting the split rudder trim tab,
this obviously to counter the massive amount of torque on take.
Sorry if this may be a silly question but why the need for the tab to be spit?
Thank you.......
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