Lanzo Swayback with HP 21 4-stroke

Hi Guys,

My latest effort, Lanzo Swayback from a Spirit of Yesteryear's Kit.

It is an R/C version with a Spektrum 5 radio powered by an original HP VT .21 not the RJL repro.

Plan to sport fly it in honor of Chester. He never did care for this model.

Weight - 48.4 ounces

Wing area - 476 sq.ins. - 3.06 sq. ft.

Wing Loading - 14.6 ounces per sq. ft.My first R/C model the Rebel weight 58 ounces and it flew with an OS Pet 09 glo engine.
Its wing area was about 3 sq ft..

Bucky

Click here for videos of the first flights.

HP-VT review by Clarence Lee

NB:  This is an early VT-21

http://www.mecoa.com/hp/vt/21.htm

ParkZone Sukhoi Su-26m

Baseball fan making a nuisance of himself with a bind & fly model from
Horizon Hobbies.



FWIW, the reason an ARF is featured on this site is because it's a useful and funny reminder of what non modelers think of our "toys."

Tom Thumb

Tommy,

Just flew my new Tom Thumb (5/8 size Tom Boy) and it flies great. It was designed by Vic Smeed and published full size in Aeromodeller in 1957. It was designed for the Albin Bambi
.009 cid. diesel engine. Mine is powered by a Russian repro. which runs better than the
original. Wing span is 22 in. and weight is 2 oz. and it flys just like its big brother, left under
power and right glide. It flew right of the board.

I think your Dad has one of these engines, and if he would like a set of full size plans,
let me know.

Dave Acton

The Cloudhopper by George Reich

Erpelding's Dodger

Finally finished the Brooklyn Dodger. 4oz. overweight, CG around 50% . Next step is to run engine then test fly at Muncie.It has had its share of problems during the building stage so maybe testing will go a little better. HAW!!

Bob

Tandy's Jenno .29

Good Morning Thomas,

While I am waiting for the Sailplane graphics to arrive, I started cycling transmitter, receiver, and ignition batteries and I also changed out one engine yesterday. I have been using a Shilen Torpedo .29 ignition engine in the Class B Airborn since it was initially built. However, last year in a discussion with George Tallent out in Arizona, George said I should pick up a Jenno Torpedo .29 because they would outperformed the Shilen engine. Well, I did locate a Jenno Torp .29 (S/N 337) and bought it. I sent the engine to Bob Beecroft out in California who is not only a free flight modeler, but a good machinist as well. He drilled the three threaded holes that hold the backplate on crankcase all the way through the crankcase so the engine could be radial mounted as shown below.

I removed the rear mounted tank, changed out the needle valve assembly for an fine thread Enya needle valve assembly, and installed the Jenno Torp .29 in the Airborn as shown below.

The up and coming flight tests will be used to check out the Airborn's new Futaba FASST 2.4 gHZ receiver as well as evaluate the performance of the Jenno Torp .29........................Tandy

159 Sailplane Today's Progress on the Final Assembly

Report #159 from Tandy Walker on the construction of his Comet Sailplane for the 2009 SAM Champs in Las Vegas

Comet Sailplane Project

The picture below shows the integrated ignition unit consisting of (1) a 750 mAH NiMH battery pack, (2) a ModelElectric coil, and (3) Marv Stern's Aero Tech IGN-SW ignition module installed on the back side of the Sailplane's firewall with two 2-56 cap screws. You can see the (+) ignition pack charge terminal and the (+) booster terminal wires with lugs soldered to their ends. In addition, the landing gear has also been installed.

With the two wire lugs attached to the terminals on the back side of the hatch cover, this picture shows the two external terminals and the hook up for charging the ignition pack and attaching external booster batteries (note that the landing gear wire is grounded to the engine).
The green wire in the picture below is the landing gear's ground wire to the engine for the booster and ignition pack charge grounds on the landing gear shown above. I was doing a continuity check with the multimeter that you see in the picture.

This picture shows the ignition unit's ground and point wires. Notice that the high tension lead is too short to be routed up through the cowl and to the spark plug.

So I started making a new high tension lead. Larry Davidson sells the clip shown below that snaps onto the coil post. Years ago Dick Huang gave me bunch of very small aluminum brads that I use to attach the high tension wire to the coil clip. About a 1/4" of the insulation on the high tension wire is removed and the stranded wire is bent through the hole in the coil clip. The aluminum brad is also pushed through the hole and then flared out, which attaches the high tension wire to the coil clip. Black heat shrink tubing is used insulate the connection as shown below.

James Lollar is sending me some 1K and 10K resistors to use inline with the little spark plug clip that I make, but they have not arrived yet. I will probably use a 10K resistor and locate it as close to the spark plug as practical. Well, that it for today.........................Tandy