Model Airplane News Cover for November, 1969
"Miss Model Aviation", Chris Gorman
...also on the cover of Flying Models
Click to Enlarge

Here is what the blurb about the cover has to say:

"... Miss Model Aviation, Chris Gorman and Captain Brango, commandant of the United States Naval Air Reserve Station, Willow Grove, Pa take time out to pose with an R/C scale entry. Captain Brango and his able staff made every effort to make the 1969 National Championships the success that it was ..."

About the 1969 National Championships

The issue had a fairly comprehensive summary of the 1969 Nationals, which is reproduced below. If you look hard, you can find two more photographs of Ms Gorman.

     

Free Flight

     

Control Line



Indoor
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About the Full Size Airplane

The Piper PA-30 "Twin Comanche" is an American twin-engined cabin monoplane designed and built by Piper Aircraft. It was twin-engine development of the PA-24 Comanche single-engine aircraft.

The Twin Comanche was designed to replace the Piper Apache and was adapted from the single engined Comanche;it is a low-wing cantilever monoplane with a retractable tricycle landing gear. The Twin Comanche is the most fuel efficient aircraft in its class. With tip tanks, the aircraft holds 120 gallons of fuel. Fuel burn at typical cruise settings is approximately 15.5 gph with a cruise speed of 165 kts. It easily climbs to 18,000' when desired.

  

Piper PA-30 "Twin Comanche"
Click to Enlarge

Three versions of the PA30 were produced: the original, a B model, and a C model. The B and C models can carry six passengers and can be identified by the additional side windows. Factory turbocharged engines became available in 1965. These used Rajay turbochargers with manual wastegates operated by twin knobs under the throttle quadrant. They were properly termed "turbonormalized" since the compression ratio and maximum manifold pressure remained unchanged. Pilots were required to use care to avoid overboosting at low altitudes, since no overboost popoff valves were used. Since there was no accompanying power increase, the B/C models simply give owners a fuel vs. passenger tradeoff.

Here is a video of the Piper Twin:

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