Letter Written by Saidee R. Leach to her Son, Navy Ensign Douglas Leach, Dated August 28, 1942

Dear Douglas: I shall have this letter ready so that it can be sent out tonight if we find one waiting from you at home with your new address. Dad will take it when he walks up to the corner after supper for his daily chat with the Ying Brothers. I guess the conversation is about the same every night but both sides seem to enjoy it..

Letter Written by Saidee R. Leach to her Son, Navy Ensign Douglas Leach, Dated November 29, 1942

Dear Douglas – We can’t be with you Monday night as we are not leaving until that night on the 11:00 PM Bus, getting in New York at 5:00 AM Tuesday morning. You can call us at the Hotel Chesterfield around noon or 5:30..

Letter Written by Saidee R. Leach to her Son, Navy Ensign Douglas Leach, Dated August 28, 1942

Dear Douglas: I shall have this letter ready so that it can be sent out tonight if we find one waiting from you at home with your new address. Dad will take it when he walks up to the corner after supper for his daily chat with the Ying Brothers. I guess the conversation is about the same every night but both sides seem to enjoy it..

Letter Written by Saidee R. Leach to her Son, Navy Ensign Douglas Leach, Dated October 6, 1942

Dear Douglas: This letter will be written in the shop, taken home on the chance that there may be one from you there that requires an answer or two, then Dad will mail it at the corner so you should receive it on Wednesday. It seems a long time since I have written to you or since we have heard from you but we know just how every minute of your time is taken and as Aunt Eleanor telephoned me that she had had a letter from you, we have heard indirectly..

Energy efficient engine: Turbine transition duct model technology report

The Low-Pressure Turbine Transition Duct Model Technology Program was directed toward substantiating the aerodynamic definition of a turbine transition duct for the Energy Efficient Engine. This effort was successful in demonstrating an aerodynamically viable compact duct geometry and the performance benefits associated with a low camber low-pressure turbine inlet guide vane. The transition duct design for the flight propulsion system was tested and the pressure loss goal of 0.7 percent was verified. Also, strut fairing pressure distributions, as well as wall pressure coefficients, were in close agreement with analytical predictions. Duct modifications for the integrated core/low spool were also evaluated. The total pressure loss was 1.59 percent. Although the increase in exit area in this design produced higher wall loadings, reflecting a more aggressive aerodynamic design, pressure profiles showed no evidence of flow separation. Overall, the results acquired have provided pertinent design and diagnostic information for the design of a turbine transition duct for both the flight propulsion system and the integrated core/low spool

Microwave background constraints on inflationary parameters

We use a compilation of cosmic microwave anisotropy data (including the recent VSA, CBI and Archeops results), supplemented with an additional constraint on the expansion rate, to directly constrain the parameters of slow-roll inflation models. We find good agreement with other papers concerning the cosmological parameters, and display constraints on the power spectrum amplitude from inflation and the first two slow-roll parameters, finding in particular that $\epsilon_1 < 0.057$. The technique we use for parametrizing inflationary spectra may become essential once the data quality improves significantly.Comment: 6 pages LaTeX file with figures incorporated. Major revisions including incorporation of new datasets (CBI and Archeops). Slow-roll inflation module for use with the CAMB program can be found at http://astronomy.cpes.susx.ac.uk/~sleach/inflation