Model jumbo jet flight

Avon Valley Gazette - - FRONT PAGE - Sarah Brookes

THERE won’t be much leg room for pas­sen­gers when Aus­tralia’s, and one of the world’s, largest ra­dio- con­trolled model jumbo jets takes to the skies for its maiden flight next month.

It has taken two years for Dar­ling­ton model en­thu­si­ast An­drew Herzfeld to build the so­phis­ti­cated 747- 400 jumbo jet model from scratch us­ing a scaled- down plan of the full- size air­craft.

“The jet is 5.6m in length, weighs in at 65kg and is pow­ered by four minia­ture jet en­gines which pro­duce 56kg of thrust,” he said.

“The air­craft is made from poly­styrene foam, balsa wood, ply­wood, fi­bre­glass, car­bon fi­bre, lots of cof­fee and el­bow grease.

“It is driven by a highly so­phis­ti­cated 28- chan­nel com­put­erised re­mote con­trol sys­tem and has 44 on- board elec­tronic com­po­nents to drive the flight con­trols and fea­tures fully re­tractable un­der­car­riage, brakes, nav­i­ga­tion light­ing sys­tem and on- board com­put­ers to mon­i­tor and con­trol the four jet en­gine sys­tems.

“It car­ries 20 litres of avi­a­tion fuel on- board, which will al­low for a flight time of around 15 min­utes.”

Mr Herzfeld said the jet was un­der­go­ing ex­ten­sive ground test­ing and would re­quire a manda­tory pre- flight in­spec­tion.

“The model has un­der­gone an ex­ten­sive cer­ti­fi­ca­tion process and has been thor­oughly in­spected by a cer­ti­fied Gi­ant Model in­spec­tor at ev­ery stage of the build,” he said.

“Al­though ev­ery cal­cu­la­tion has been made, there are a still a few un­knowns which may de­ter­mine the suc­cess of the first flight.

“Things can hap­pen very quickly and there is only a short amount of time to get the feel of air­craft be­fore hav­ing to at­tempt a land­ing.”

The model will be on dis­play at the WA Model Air­craft Sports Cen­tre Expo on Novem­ber 4 and 5.

Pic­ture: Bruce Hunt www. com­mu­ni­typix. com. au d475215

An­drew Herzfeld with his model jumbo jet.

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