BEFORE continuing final portion history Dyna-Jet engine wish thank modelers wrote notes stating enjoyed last May Speed column responses can segregated major model ing interest writers approximately fol lows 80% RCers 18% general interest 2% Speed fraternity So folksyou dont have fly CL Speed write welcome inquiries modelers interested pect hobby Please remember top-rated Speed contests held Dallas TX June 25-26 Sep tember 3-4 1988 information mail SASE address given top Speed column addition Gary Frost Combat fame along LaFayette Esquadrille Model Club having Speed meet St Louis MO May 1 1988 Another excellent contest Northwest Re gionals Eugene OR May 28-29 1988 Without further rhetoric lets move conclusion Dyna-Jet article Jerry Wiles Other projects involved two item several dozen full production quanti ties addition ongoing output Dyna Jets Several engines measuring eight inches di ameter eight feet long made US Navy target missile smaller dual-tailpipe version developed latter intended powering lift rotor small helicopter Smoke-screen generators develoned produced Army Navy used folded pulsejet engines provide necessary heat pressure airflow commercial mar kets insecticidal fog generator Dyna-Fog produced hundreds preceded military generators operated same prin ciples 1951 firm incorporated Shev lin Manufacturing Company being maid en name Bill Tenneys mother people hired purpose fulfilling among other things new much larger contract Army smoke generators two people 1945 11 hired 1949 maxi mum about 29 mid-1952 AeromarinefShev lin grew sought new markets its reputa tion became widely known During years Dyna-Jet sales stabilized about 100 per month therefore produced batches 1000 stocks fell relatively low Production halted until stock depleted again tooling up manufacture previ ously mentioned large quantity smoke genera tors Army badly needed during Kor ean War company learned Armys letter intent contract termi nated However Shevlin permitted bid firm contract apparently due misunder standings ill will among few princi pals Consequently Shevlins blueprints re drawn Army personnel submitted other manufacturers today seems very peculiar Shev lin people permitted see Army drawings because classified verrrrry strange coincidence Michigan com pany won contract produce Shev lins designs Army previously turned down Shevlin sub contractor earlier aborted agreement Reit a4t JET FOG GENERATOR V 11 Dyna-Fog advertising circular 1951 Unit commercial insecticidal fog applica tions cost $1185 portedly firm would guarantee per formance its components Shevlin-built gen erators As evidence episode best borderline illegal some ways Bill later won financial judgement against Army its han dling production order smoke screen generators Naturally Bill discouraged dis gusted sudden severe loss business As result got out business completely selling Shevlin Russell Curtis Curtis Continued page 159 July 1988 69 Conoi Lhe Speed Gene Hempel 301 N Yale Dr Garland TX 75042 folded Aeromarine pulselet engine mounted bulkhead assembly Army E19R1 smokescreen generator 1951 US Navy twin-engined pulsejets course PJ-101 smoke generator 1951 Also Aeromarine product Miniature pulselet L Dyna-Fog Jr production Curtis Dyna-Products 1956 Monster pulsejet R eight feet long diam eter eight inches designed US Navy missile Aeromarine VP Malcolm Brown holds 1949 CL Speed/Hempel Continued page 69 Automotive Devices CAD Indiana Curtis hired Paul Frank Aeromarine/Shev uns chief engineer aid transfer mate rial technology Bedford located southcentral Indiana eight Shevlin people Paul asked accompany him three us did CAD Dyna-Fog Dyna-Jet re turned production after long delay re search begun smaller versions both Ad ditionally pulsejet-powered steam generator being considered drafting department expanded hiring man working engineering degree also familiar Dyna-Jet having won Jet Speed events previous subsequent years refer James Richmond currently very ac tive successful national international Indoor FF competition year-and-a-half after move Bedford Paul Frank remained others us hav ing left various reasons Prototype small Dyna-Fog machines fabricated refinement begun preparation quantity pro duction However other research pulsejet projects halted including smaller Dyna-Jet Several years later ironically modestly successful Japanese-made Tigeriet placed sale country few years later Curtis moved company Westfield located just north Indianapolis changed company name Curtis Dyna Products Presumably acknowledge ment renewed importance company creations ideas Aeromarine Shevlin remains named today although Mr Curtis passed away few years ago am unaware current products projects Curtis Dyna-Products know extensive changes Dyna-Fog series Only Dyna-Jet same years ago probable improved technoques have adopted some production steps far can learn item Dyna-Jet ever pro duced interchangeable its counterpart other Indeed parts its foreign clones least three also fully interchangeableeven use US stan dard threads metricized country after 40 years almost continuous production days successful competitors Jet Speed extensively modify engines Among other things concoct fuel blends make bigger bang does gasoline ap plication seems safe say however manufactured properly used Dyna-Jet re mains easiest-starting consistent performance reliable safest eeonomical operate minlature power plant ever placed production Once again want thank Gerald L Jerry Wiles sharing fascinating bit personal history us love cards letters photos send Weekend/Underwood Continued page 79 ing talking presentation Along taxied wingless RC modelwe too close active runway fly Parked airplanes snow prevented us flying Control Line well Something very significant occurred break after sessions young people models hand gravitated AMA room studied mod els display importantly repaired modified model built Flip became Stealth-type air craft through ingenious use scrap balsa conclusion model session participant given goody bun dle containing AMA material copy Model Aviaf ion AMA Cub build home program covered 10 hours Satur day lunch dinner served hangar airport restaurant Saturday eve ning featured wind-up session films brief comments Sunday third session held morning noon lunch shared participants parents volunteers Hangar talk abounded everyone opportunity look over several full-scale aircraft flown day three afternoon everyone headed home savoring experi ences first Air Academy Weekend clean-up session helpers fol lowed pleasant dinner local restaur ant table talk bubbled suc cess weekends event person whether EAAer AMAer said next program occurred area wanted part seeond four pilot programs held Minneapolis-St Paul area end February modeling ses sion being led Boyd Bowdish District VII assistant vice-president Two will held Tulsa OK Indianapolis IN later year What come Plans under way within EAA expand program AMA pleased have opportunity participate effort utilize talents MIhIJET SERIESThe Proud Bird theProud Bird planes feature balsadesIgned meet constructIon Designed ith the0lPR5 Formula intermediate flyer mind ,ill 120 ralesThls 1/i arcept 21 25 size engineCase ,tTZJscale model hill accept o reur eahaust engine em 60120 ci size engines ceptiseul perfuraanceDet al l~uo5o.Epoap glass faselagewlth t5rill jet elthou t foam wIng constructIon Full kIt $15000 toe hassles darted fan SoyhamiSemIkIt also avaIlaBle Ino mood $12511 Special Introductory PrIce Please add $1000 shIppIng handling sillS plus $300 IBM flu hes Send check Md add dl sales too Mastercard PIsa SOOLE MametS coo add $200 t3BSSBIM477 PARRISH AIRCRAFT fop Turkey formula 1 dDart EaperimentalI2ssW491hre, ISSOD dhTigersharktwoplace full sIze aIrcraftPInIatiaeFj 3331 July 1988 159
Edition: Model Aviation - 1988/07
Page Numbers: 69, 159
BEFORE continuing final portion history Dyna-Jet engine wish thank modelers wrote notes stating enjoyed last May Speed column responses can segregated major model ing interest writers approximately fol lows 80% RCers 18% general interest 2% Speed fraternity So folksyou dont have fly CL Speed write welcome inquiries modelers interested pect hobby Please remember top-rated Speed contests held Dallas TX June 25-26 Sep tember 3-4 1988 information mail SASE address given top Speed column addition Gary Frost Combat fame along LaFayette Esquadrille Model Club having Speed meet St Louis MO May 1 1988 Another excellent contest Northwest Re gionals Eugene OR May 28-29 1988 Without further rhetoric lets move conclusion Dyna-Jet article Jerry Wiles Other projects involved two item several dozen full production quanti ties addition ongoing output Dyna Jets Several engines measuring eight inches di ameter eight feet long made US Navy target missile smaller dual-tailpipe version developed latter intended powering lift rotor small helicopter Smoke-screen generators develoned produced Army Navy used folded pulsejet engines provide necessary heat pressure airflow commercial mar kets insecticidal fog generator Dyna-Fog produced hundreds preceded military generators operated same prin ciples 1951 firm incorporated Shev lin Manufacturing Company being maid en name Bill Tenneys mother people hired purpose fulfilling among other things new much larger contract Army smoke generators two people 1945 11 hired 1949 maxi mum about 29 mid-1952 AeromarinefShev lin grew sought new markets its reputa tion became widely known During years Dyna-Jet sales stabilized about 100 per month therefore produced batches 1000 stocks fell relatively low Production halted until stock depleted again tooling up manufacture previ ously mentioned large quantity smoke genera tors Army badly needed during Kor ean War company learned Armys letter intent contract termi nated However Shevlin permitted bid firm contract apparently due misunder standings ill will among few princi pals Consequently Shevlins blueprints re drawn Army personnel submitted other manufacturers today seems very peculiar Shev lin people permitted see Army drawings because classified verrrrry strange coincidence Michigan com pany won contract produce Shev lins designs Army previously turned down Shevlin sub contractor earlier aborted agreement Reit a4t JET FOG GENERATOR V 11 Dyna-Fog advertising circular 1951 Unit commercial insecticidal fog applica tions cost $1185 portedly firm would guarantee per formance its components Shevlin-built gen erators As evidence episode best borderline illegal some ways Bill later won financial judgement against Army its han dling production order smoke screen generators Naturally Bill discouraged dis gusted sudden severe loss business As result got out business completely selling Shevlin Russell Curtis Curtis Continued page 159 July 1988 69 Conoi Lhe Speed Gene Hempel 301 N Yale Dr Garland TX 75042 folded Aeromarine pulselet engine mounted bulkhead assembly Army E19R1 smokescreen generator 1951 US Navy twin-engined pulsejets course PJ-101 smoke generator 1951 Also Aeromarine product Miniature pulselet L Dyna-Fog Jr production Curtis Dyna-Products 1956 Monster pulsejet R eight feet long diam eter eight inches designed US Navy missile Aeromarine VP Malcolm Brown holds 1949 CL Speed/Hempel Continued page 69 Automotive Devices CAD Indiana Curtis hired Paul Frank Aeromarine/Shev uns chief engineer aid transfer mate rial technology Bedford located southcentral Indiana eight Shevlin people Paul asked accompany him three us did CAD Dyna-Fog Dyna-Jet re turned production after long delay re search begun smaller versions both Ad ditionally pulsejet-powered steam generator being considered drafting department expanded hiring man working engineering degree also familiar Dyna-Jet having won Jet Speed events previous subsequent years refer James Richmond currently very ac tive successful national international Indoor FF competition year-and-a-half after move Bedford Paul Frank remained others us hav ing left various reasons Prototype small Dyna-Fog machines fabricated refinement begun preparation quantity pro duction However other research pulsejet projects halted including smaller Dyna-Jet Several years later ironically modestly successful Japanese-made Tigeriet placed sale country few years later Curtis moved company Westfield located just north Indianapolis changed company name Curtis Dyna Products Presumably acknowledge ment renewed importance company creations ideas Aeromarine Shevlin remains named today although Mr Curtis passed away few years ago am unaware current products projects Curtis Dyna-Products know extensive changes Dyna-Fog series Only Dyna-Jet same years ago probable improved technoques have adopted some production steps far can learn item Dyna-Jet ever pro duced interchangeable its counterpart other Indeed parts its foreign clones least three also fully interchangeableeven use US stan dard threads metricized country after 40 years almost continuous production days successful competitors Jet Speed extensively modify engines Among other things concoct fuel blends make bigger bang does gasoline ap plication seems safe say however manufactured properly used Dyna-Jet re mains easiest-starting consistent performance reliable safest eeonomical operate minlature power plant ever placed production Once again want thank Gerald L Jerry Wiles sharing fascinating bit personal history us love cards letters photos send Weekend/Underwood Continued page 79 ing talking presentation Along taxied wingless RC modelwe too close active runway fly Parked airplanes snow prevented us flying Control Line well Something very significant occurred break after sessions young people models hand gravitated AMA room studied mod els display importantly repaired modified model built Flip became Stealth-type air craft through ingenious use scrap balsa conclusion model session participant given goody bun dle containing AMA material copy Model Aviaf ion AMA Cub build home program covered 10 hours Satur day lunch dinner served hangar airport restaurant Saturday eve ning featured wind-up session films brief comments Sunday third session held morning noon lunch shared participants parents volunteers Hangar talk abounded everyone opportunity look over several full-scale aircraft flown day three afternoon everyone headed home savoring experi ences first Air Academy Weekend clean-up session helpers fol lowed pleasant dinner local restaur ant table talk bubbled suc cess weekends event person whether EAAer AMAer said next program occurred area wanted part seeond four pilot programs held Minneapolis-St Paul area end February modeling ses sion being led Boyd Bowdish District VII assistant vice-president Two will held Tulsa OK Indianapolis IN later year What come Plans under way within EAA expand program AMA pleased have opportunity participate effort utilize talents MIhIJET SERIESThe Proud Bird theProud Bird planes feature balsadesIgned meet constructIon Designed ith the0lPR5 Formula intermediate flyer mind ,ill 120 ralesThls 1/i arcept 21 25 size engineCase ,tTZJscale model hill accept o reur eahaust engine em 60120 ci size engines ceptiseul perfuraanceDet al l~uo5o.Epoap glass faselagewlth t5rill jet elthou t foam wIng constructIon Full kIt $15000 toe hassles darted fan SoyhamiSemIkIt also avaIlaBle Ino mood $12511 Special Introductory PrIce Please add $1000 shIppIng handling sillS plus $300 IBM flu hes Send check Md add dl sales too Mastercard PIsa SOOLE MametS coo add $200 t3BSSBIM477 PARRISH AIRCRAFT fop Turkey formula 1 dDart EaperimentalI2ssW491hre, ISSOD dhTigersharktwoplace full sIze aIrcraftPInIatiaeFj 3331 July 1988 159