Hunniwell Boys #1 in the Air and #2 Victory

The Hunniwell Boys series consists of eight books written by L. P. Wyman.

1.  The Hunniwell Boys in the Air, 1928
2.  The Hunniwell Boys' Victory, 1928
3.  The Hunniwell Boys in the Secret Service, 1928
4.  The Hunniwell Boys and the Platinum Mystery, 1928
5.  The Hunniwell Boys' Longest Flight, 1928
6.  The Hunniwell Boys in the Gobi Desert, 1930
7.  The Hunniwell Boys in the Caribbean, 1930
8.  The Hunniwell Boys' Non-Stop Flight Around the World, 1931

In the Hunniwell Boys #1, The Hunniwell Boys in the Air, Bill and Gordon Hunniwell have built their own plane, the Albatross.  They have borrowed some electric cells from their friends, Bob and Jack Golden, who are currently in Europe.  The Hunniwell brothers use the cells to power their plane.  Soon after the plane is ready, the boys fly to Newfoundland to search for some lost fliers.

The Hunniwell Boys live in the same town as the Golden Boys.  Bob and Jack Golden never appear in this series, but they are mentioned at the start of most of the books, since the Hunniwells use their electric cells.

This is a good book.

In The Hunniwell Boys #2, The Hunniwell Boys' Victory, Bill and Gordon add a second propeller to their plane.  The propeller is placed on top of their plane and can lift the plane vertically.  The boys call the propeller the "elevator" and use it to land and take off from tight spaces. 

Mr. Golden requests that the boys survey some land in the Maine woods.  The land is disputed, and Mr. Golden wants the boys to verify that his information is correct.  The job proves to be very difficult.  The boys end up under attack and must use all their wits to complete the survey.

This is a very good book.