still more other people

8/6/2019 Still More Other People

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STILL MORE OTHER PEOPLE'S TWIN

PUSHERS

SOME MINI TWIN PUSHERS~

PETERROSENTHALL'S MINI

I got this fun present in the maillast Xmas. Peter Rosenthall sent

it. A glorious addition to the treeit was. He writes that atop his tree

was King Kong being pestered bythe Army Aircorps

Note the carved props and the

adjustable canard.

I tried flying it and the best I

could do was 7 seconds, but anexciting 7 seconds. A loop, followed by a steep right and then a steep left into the floor. All at

high and buzzy speed. I think maybe the high wing mount is the trouble. The thrust line passesunder everything. I'll ask Peter permission to lower the wing and try again.

~MATT KEVENEY'S MINI

Matt writes...

I've been meaning to build a twinpusher since the pages were firstpublished...I finally got around to

it. Here are the pictures & specs.

Span: 4"

length: 4" props: 2" pitch: dunno

structure: 1/32" squareMotorsticks: 1/16x3/32"

covering: Rit-dyed ultrafilm (thanks to FFML advice) best time: 15 seconds ...still working on it


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The props are scaled downCeiling Walker props, based on

your dimensions. They're madefrom IMS EZB stock and work

okay, but came out a little too

flimsy. I'm about ready for a newset already.

And yes, I know it wouldn't bemuch more expensive to make a

bigger one.

Loads-O-fun!

-Matt

PETERMICHEL & HIS SIMMERS A-FRAMEHere's a couple of pix of Peter Micheland his Simmers, enjoying a Sunday on

Chobham Common . He reports about2 min on 8 strands of 1/8" TanII per

motor stick on 2/3 turns.

The Simmers is a fairly late TwinPusher by Wally Simmers theGollyWock man. Note the overlapping

props.

He Writes "I'm busy tweaking up thetrim of the Simmers in view of the

annual A-frame challenge by visitingAmericans, principal among them

being Mik Mikkelson from Hollywood.He and I also enjoy a good A-frame

shoot-out!"

Note: They call them A-Frames overthere.

I like the loose plane in the upper left. Looks to be doing pretty good considering a prop fell off.

And check the site !17 crow miles! from London Center (Trafalger Sq.). Amazing!


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Photos by Charlie Jeffreys

And here we have a nice up to date Twin Pusher by C.S. Fries

He writes ..

"Cook 45 riser from RCM plans6/79. A great little flyer. Takes offfrom rough grass. Flies on one

engine really well. Must be surethat both props are pushing!!"

Tom Schrader's Oversized Indoor Ott Twin Pusher


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Tom Schradersent this

inspiring pic.

He writes

" I amenclosing apicture of my

Ott CloudChaser in flight

indoors. It isexpanded to

36" wing spanand 36" on the

A-framelength.

Look close andyou can see the prop in motion and the front canard twist for right turn.... It is no record buster

but just a graceful flyer.

I asked about keeping it out of the rafters and away from the walls. Here's what he says.

" Danny: First off. The gym we fly in is about 100ft. X 100ft. and maybe 30 or 35 ft.until

you tangle up in the girders.... I set the front canard which is a V with a positive incidence + Iwarp it so as to have the left canard to have wash out and

the right canard to have wash in for say a right turn. The wing has dihedral only. It isquite easy to get about a 50ft. circle. It is all trial and error but I use smaller width rubber.

then wind on 1400 turns or so. The idea is to get a slow nearly flat climb and run out of peakpower just under the rafters and then lessor power all the way down. I'll generally end up with

half of the turns unused, and my friend says this is just wasted energy. My best time is a rathermeek 125 seconds which is not to be bragged about but it is a PURE MAGIC to watch this slow

silent flight!

He adds"I also built a basic Mott but it is faster and smaller and is not near as neat.

~I had trouble keeping my indoor Mott in the gym and found I had to build a 1/2 sized one. 2

minutes sounds about right . Although with more lightness no doubt would come more minutes.

Thanx Tom

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