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Search: Posts Made By: R. Smith
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Forum: Golden Age, Vintage & Antique RC
08-28-2003, 01:25 PM
Replies: 29
Views: 2,612
Posted By R. Smith

Need Covering Method for FABRIC !

< sometimes even after the silk is completely filled, at some point when applying subsequent coats, the covering will begin to "let go". >

I have experienced exactly the same thing. This problem...
Forum: Golden Age, Vintage & Antique RC
08-27-2003, 04:47 PM
Replies: 29
Views: 2,612
Posted By R. Smith

Need Covering Method for FABRIC !

To cover an undercambered wing...

Dope the leading, trailing edges and the rib edges with 3 coats of unthinned clear dope. Sand just enough to remove the fuzz.

Apply your wet silk to the wing...
Forum: Golden Age, Vintage & Antique RC
08-27-2003, 12:27 PM
Replies: 29
Views: 2,612
Posted By R. Smith

Need Covering Method for FABRIC !

<please be advised that silk and dope will continue to tighten for 10 years! >

This is correct however the majority of the tightening occurs in the first 10 days.

It's possible to limit the...
Forum: Golden Age, Vintage & Antique RC
08-26-2003, 05:45 PM
Replies: 29
Views: 2,612
Posted By R. Smith

Silk/Nylon

The last time I checked silk was over $10/yard. With finishing materials it's very expensive.

A alternate source of silk could be found in silk scarfs and similar objects which were wildly...
Forum: Golden Age, Vintage & Antique RC
08-20-2003, 12:57 PM
Replies: 29
Views: 2,612
Posted By R. Smith

Covering with silk

If you are going to use silk here are some suggestions.

You can dye the silk with a product called "silk shoe dye" dancers use it to dye their dancing shoes which are frequently silk covered. It...
Forum: Golden Age, Vintage & Antique RC
07-23-2003, 01:53 PM
Replies: 9
Views: 1,320
Posted By R. Smith

Vintage Radio Equip

The RX hi-voltage batteries were used in hearing aid's as were most of the subminature thyratron and hard tubes.

I remember opening up a 45 volt Burgess battery and being very impressed with the...
Forum: Golden Age, Vintage & Antique RC
07-23-2003, 01:30 PM
Replies: 5
Views: 940
Posted By R. Smith

Have you read this book?

Charlie Grant and Frank Zaic were the two individuals who prior to and right after WW2 attempted to take model aeronautics from it's seat of the pants design philosophy into something more...
Forum: Golden Age, Vintage & Antique RC
07-10-2003, 12:57 PM
Replies: 22
Views: 15,106
Posted By R. Smith

Jasco/Jetco a bit of history

This is a later JETCO kit. I can see it was designed by McGoveren and kitted by the C.A. Zaic Co. As many here must know, McGoveren was the "king" of larger/giant models in the 50's and early...
Forum: Golden Age, Vintage & Antique RC
07-10-2003, 01:22 AM
Replies: 22
Views: 15,106
Posted By R. Smith

Jasco/Jetco a bit of history

I left JETCO in 1952 and I had heard nothing about an "Imperial 100".

I suspect that Ehling must have decided to design something to echo the Thermic 100.

In any event I am sorry to say that I...
Forum: Golden Age, Vintage & Antique RC
06-16-2003, 01:06 PM
Replies: 6
Views: 1,725
Posted By R. Smith

Looking for Cavalier plans

If you have the Zaic Year Books there is a small scale plan for this early, little known RC model. I am not sure which edition includes the plan but it's there.

Berkley did kit the Cavalier,...
Forum: Golden Age, Vintage & Antique RC
06-10-2003, 02:12 PM
Replies: 17
Views: 2,075
Posted By R. Smith

Help Identifying Old Bipe

I built one of these while at Parks College as my first multi channel project around 1960. Mine was powered by a Torpedo 35 and with the Citizenship reed equipment was distinctly under powered.
...
Forum: Park Flyers & Backyard Flyers
05-06-2003, 01:39 PM
Replies: 0
Views: 716
Posted By R. Smith

Korda Wakefield (convert to electric?)

I would like to build an electric powered Korda Wakefield. There are 2 kits available one is full size (40 inch span) and a 75% version with a 31 inch span.

For economy I would prefer the smaller...
Forum: RC Gliders, Sailplanes and Slope Soaring
04-30-2003, 04:41 PM
Replies: 1
Views: 1,460
Posted By R. Smith

Jetco Thermic 72

I suspect that this is the Ehling redesign with the carved pod and the rudder in front of the horizontal stab.

I built and flew 2 of these during the time they were in production. It's truly a...
Forum: Park Flyers & Backyard Flyers
04-29-2003, 12:50 PM
Replies: 4
Views: 1,188
Posted By R. Smith

Stick and tissue Park Flyer

Does anyone kit a Park Flyer which employs's traditional "stick and tissue" construction techniques.

I am looking for something which is reminiscent of an old timer but designed for electric power...
Forum: Golden Age, Vintage & Antique RC
04-28-2003, 04:43 PM
Replies: 16
Views: 7,893
Posted By R. Smith

Not the original Thermic-50

The airframe in the photo is the Frank Ehling redesign of this classic glider.

Ehling simplified the construction by eliminating the spars, false ribs and under cambered airfoil.

The fuselage...
Forum: Golden Age, Vintage & Antique RC
04-28-2003, 02:51 PM
Replies: 15
Views: 2,173
Posted By R. Smith

Trixter Beam?

I built several of these with Kraft single channel receivers and Bonner escapements.

The batteries are mounted on a bulkhead at the front of the cabin area pretty close to the CG. I used small...
Forum: Golden Age, Vintage & Antique RC
04-25-2003, 06:06 PM
Replies: 8
Views: 1,930
Posted By R. Smith

Berkley Rudder Bug

They flew very well with compound escapements and the simple and reliable Kraft single channel electronics.

The AristoCraft pulser was problematic. I always considered it a solution in search of...
Forum: Golden Age, Vintage & Antique RC
04-25-2003, 02:06 PM
Replies: 8
Views: 1,930
Posted By R. Smith

Berkley Rudder Bug

During the 60's I was a member of the DC-RC Club. Since it was Walt Goods home club there were several rudder bugs flying with equipment constructed by Good himself.

At this time any RC model...
Forum: Golden Age, Vintage & Antique RC
04-25-2003, 12:23 PM
Replies: 22
Views: 15,106
Posted By R. Smith

JASCO balsa

One of the more interesting things that came with working for JASCO was unloading balsa wood logs.

The wood arrived in the form of roughly dressed square timbers about 10 inches square and 8...
Forum: Golden Age, Vintage & Antique RC
04-25-2003, 12:06 AM
Replies: 22
Views: 15,106
Posted By R. Smith

Thermic 100 and variations

<; the built up fuse version,>

This was a derivative of the G-84. The G-84, Frank told me was designed to carry the Berkeley "Airtronics" soft tube receivers. I believe it was the first "purpose...
Forum: Golden Age, Vintage & Antique RC
04-24-2003, 06:44 PM
Replies: 22
Views: 15,106
Posted By R. Smith

Jasco/Jetco a bit of history

I found a thread in the archives discussing the fate of the prominent model firms of the 30’s, 40’s and 50’s. There was some speculation on the fate of JASCO/JETCO….

I worked part time for...
Showing results 1 to 21 of 21


 
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