• • • • • •

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sy 124 1053

.4 Dow /644.,,,jelf-All - dote: • •P

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O•neerniag the 'MAO et the JOT to tai eoatImemisly at aiLl• .4 This is to asissowledge reeelpt et pow sato of May AM

: 2. tory power for the &erotism or this spedls1 missies. • - •

.x.;‘;'- ,

1 eertainiyappresiste. your sewer& la that the operatilig .

• • ::.

conditions are going to be mere sava ge digrAmg this adaides them

Arrether applicatlea or tha 411 with as ,0 41 alielleted. -

:

110 shall heap year objective ,or Milliard altitude enduraide'

testing is mind and_tcyle assumalate agge etiNduring our •

additional running. .N,

I have roe ever this problem with our Anglaseriag people 1111

A:

..:.

.: 6.

4

eiMi

mud am glad to report that us have already amomalated ever

: :

all 

**editions or 414000 rt. 

beers at conditions of military %Must 

or_shewe with inlet seeditleas 

Sad under altitude

Ofatelo

..'.-.•,.., X

leat.to flight Mash number •r OA. This has bees accumulated : ..7,...t.

ea edireligi2 . 011 differeat •sperimestal angles oriels is the . ,,..

course or investigation and development al& ea* single or •.:-AiR engine was operated saber these comiltiens-rer 11.1/2 hears • • •:.. •: _-

without removal tree the stand or malatemose work! likewise

• :,•fti one 'C'model was eperated under these seaditiess ever.Lbsers. • --0 I .c •ryt

in oddities to the above running which has bees aseemplished :,..

been through appres tely AO 130•hear type tests and derieg ink .-,z!,-

La the Willson tab the JOT engine la its veriest models has sew .

.*:;ft.

test eppresimateiy 1 3 or the time or 30 hours pas spent at asid• • ::1:-(!,

ass or military power conditions. This estually-le a iamb man .

..... sewers test fres as oedema* staadpitat thee altitude operation :*-L.;- sines the temperatures are held to the same limit in both lasts** ..j.4.:7'* cos but seder sea level moditleas the pressure level soder 'hi gh :..47t .. • • • ... the engine is 'penal*. produce* mere severe Weds: '. •

Vit can also appreciate your point in suggesting the oddities' ..

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operating moditleas but tool that as a presti ge' matter,* have ' '7

or a generate? and air blood la Order to more nearly approach

already no as sore hours then this single test would mover 144 with generators of this capacity and greater, includimg airplane . 7'.'_.., flight experience. this

regards bleeding the air I am advised that .. . :.oc, it. will be mosseary to monitor the patrol La this amnesties - ..„ ••. .

....,.:

Ls order' to hold limiting tailpipe tommitratowemblehmeame that-- rN7:k" either with or without sir bleed the eagles will be operatingr of • .:ink basically the same Unitise temperate's* and hones the eaderesse eharecterieties should be unaffected. ..- • .:..,, -.

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/Or Oa el/ 4" ' lc."' # t?

6 A 1..5 t , r 1.... 2 a II d 4. .53',..::.1,,..._..,

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4.

Despite the above Mord we will continue development running

on the ID' and especially em the 'Cs models. Due to the heavy

work schedule we already have for development work on these and

ether important entice models that sea only Do dons is the Willgoee

Laboratory, we will try to accumulate this suggested test experience

as a part of our other runntng rather owls a specific and Ammo•

digits test. 110 will keep ,emu villa on any test results showing

bleirirfect or oil heat rejection that is any Alfferept from that

informiaft which you now have.

am pleased to hear reports that you are back in full swift

on this particular project sad I on sure this will help keep everything moving forward at a good pace.

Sincerely,

• •

P