I
got this fun present in the mail last Xmas. Peter Rosenthall sent it. A
glorious addition to the tree it was. He writes that atop his tree was
King Kong being pestered by the Army Aircorps
I
got this fun present in the mail last Xmas. Peter Rosenthall sent it. A
glorious addition to the tree it was. He writes that atop his tree was
King Kong being pestered by the Army Aircorps
Note the carved props and the adjustable canard.
I tried flying it and the best I could do was 7 seconds, but an exciting 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 passes under everything. I'll ask Peter permission to lower the wing and try again.
Matt
writes...
I've been meaning to build a twin pusher since
the pages were first published...I finally got around to it. Here
are the pictures & specs.
Span:
4"
length:
4"
props:
2"
pitch:
dunno
structure: 1/32" square
Motorsticks: 1/16x3/32"
covering: Rit-dyed ultrafilm
(thanks to FFML advice)
best time: 15 seconds
...still working on it
The
props are scaled down Ceiling Walker props, based on your dimensions.
They're made from IMS EZB stock and work okay, but came out a little too
flimsy. I'm about ready for a new set already.
And yes, I know it wouldn't be much more expensive to make a bigger one.
Loads-O-fun!
-Matt
Here's a couple of pix of Peter Michel and his Simmers, enjoying
a Sunday on Chobham Common . He reports about 2 min on 8 strands of 1/8"
TanII per motor stick on 2/3 turns.
The Simmers is a fairly late Twin Pusher by Wally Simmers the GollyWock man. Note the overlapping props.
He Writes "I'm busy tweaking up the trim of the Simmers in view of the annual A-frame challenge by visiting Americans, 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 over there.
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!
Photos by Charlie Jeffreys
| And here we have a nice up to date Twin Pusher by C.S.
Fries
|
Tom Schrader's Oversized Indoor Ott Twin Pusher
Tom Schrader sent this inspiring pic.
He writes
" I am enclosing a picture of my Ott Cloud Chaser in flight indoors.
It is expanded to 36" wing span and 36" on the A-frame length.
Look close and you 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 + I warp 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 is quite
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 peak power 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 rather
meek 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.
Thanx Tom
dannysoar2
