Show AIRPLANES USED IN FOREST FIRE prevention son roaring ring high eye ir the thoum tim eral arms of tilt national forests of tit tin tou scouting forest flies troll met anen and lloa to 0 o tho welle 14 of hulti mill and doing aerial mapping are arc being behig used lit in gradually indrea anci casing sing iii nuin iiii joers afi by 1 tile alio forest lu in fire control work yearly to the vor ln vat pst for tilts thin work ort vary nry bioni to to annually with other available for wor wyric on oil klik firis natsi ne coring to the de 0 o of agriculture 1 lieve been a ila vait rt of oc fire control work ork during tile past afif ann cell gium in 11 3 arizona and NEV mexico lovico they ali have been i for purposes to UK the northern areas of trained por fun 1 est service men to aid in large fires tle rile anost wo ilse has hai been lt lit northern idaho western alon ron lana oregon aaa california they nio are also playing till on important pint part in ili ole lie sparsely inke doettl region legion of 0 mimic man t for both observation and ciul tit in fire fighting aircraft carrying water or chemicals have igou made eliop have lini been found to bo impractical licino lic of tilt havard encountered lit in low flying over rough country sudi materials to he 10 effective of teeth 0 insist lie ile spread over till nil nica area of mix to 0 o eight feet in ill tile path of tile fire Ik causo liquids liquid 1 have a great tend eney to spread when dropped froin 11 plane an all enora must ho be carrica lit in order to lc be effective difficulties also have been en ell countered in finding n suitable i not poisonous onous or dangerous to anti yet easily applied sonie some chemicals dependent upon the formation of a smothering gas work splendidly in nn nit en enclosed closel spaces hut but in timbered areas ac with winds they are found folind to bo be impractical A gas lic anvy enough not to bo be affect ed by gilr currents brahis lato into tile valleys ditl Js Is in tough rough mountainous country very c tle so far no nn limo lieve been beel found to IQ be of much value lit in fire fight lags jilt hut additional I 1 asta cg is are continually being made 4 |