Haven't started the BSP Vol. 2 yet.
The CH-37 is a pretty standard layout for a NF series. The stand-out areas for this volume include civil operations, more color pictures than is the norm, profiles on the back cover, along with coverage of Army ops. The biggest difference on this volume is the operations, you still have the standard dry unit histories, however, the author has incorporated oral histories of both the maintenance personnel and aircrew.
Please note that even by NF standards the technical descriptions are excellent. Modelers should be careful as some of the instrument panel photos appear to be from later surplus civilian operators. There is also a chapter on the S-60 which will provide the reader with a evolutionary link to the CH-54, Erickson Skycrane, and future Airborne Mine Countermeasures (AMCM) with the RH-53D and MH-53E helicopters. Even the experimental ASUW version gets a bit of coverage as well as a British connection that will interest a few readers.
Here is the review of BSP2 Bombers:
The new information in this revised edition has literally doubled the page count and consists mostly of high-quality archival material that was not available to the author when he wrote the original volume. This volume covers the gamut of British "bombers" to include aircraft not normally seen as "bomber" per se, such as VTOL, ASW and battlefield interdiction aircraft. Mr. Buttler has chosen to place emphasis on the research, design and development within each program and included illustrations of the competing airplanes that never flew in doing so he also briefly touches on the external politics and the conflicts within the Air Staff as well. Because of this approach some will find the stories of particular airframes truncated. For example, all three V-Bombers get a total of 70 pages devoted to them which doesn't seem like much but actually comprises 22% of the book.
In exchange for this brevity the reader gets an excellent overview of British aircraft development by type, and program, some excellent drawings and appendices that are a work unto themselves. This book will probably be of limited use to modelers but is strongly recommended without reservations for anyone with an interest in British aircraft or cold war aviation.