Monogram’s Mystery Engine
I have a certain fondness for radial engines. This is understandable, seeing as how most of my 2700 hours was spent behind or alongside one or more of these mechanical masterpieces of aeronautical technology. This prompted me to purchase several kits of the radial engine. I wanted to build Revell’s Visible 1340 “Wasp” but the prices are astronomical while kit conditions are questionable. Owners of these kits want scale prices to match the engine.
However, I did purchase a copy at about half the going rate, only to find many small pieces missing. I returned the 1340 and purchased a much more affordable kit, Monogram’s memorable Wright 1820 “Cyclone.” As I have time in the “Goony bird” with two P&W 1830s droning just outside, I felt the 3’s 1820 sister seemed a reasonable example for the effort. (Nothing is more comforting to the ear when one climbs into the crew bunk for a nap. The vibration is like having been swallowed by a purring cat)
This time the kit was intact, so I began construction. The first unusual thing I noted was the single magneto ignition. Odd, I had never seen such a setup on any aircraft engine I had worked on, all had dual magnetos. Then I noticed the cap on the propeller governor mounting pad. Curiouser and curiouser yet, I thought.
Of course, these should have been obvious clues as to what I was dealing with. I went on to research the engine, looking for reference photos for painting. The box-top showed an attractive aluminum finish, but a small Revell/Monogram advertising insert showed a gloss black cylinder version that looked much more like the 1820s I had seen (but never worked on).
Yet, when I began looking on the web, I could not find a single example of Monogram’s engine. All the engines had dual ignition.
Later, while looking for an entirely unrelated subject, quite by accident I ran across a full scale radial for a very reasonable price. I went to look - low and behold, there was Monogram’s engine configuration detail, sans cooling baffles; but the listing was for a Lycoming not a Wright.
The real clue was the photo that showed a fan assembly included in the sale.
Here is the description: Engine in stand, has complete exhaust manifold, includes counterweight. Engine is running with a good core, but due for overhaul. Running core value is $12,000.00. Air Force or Bauer model R-1820-82. Contract # AF33-038-21916. Stromberg Injection Carb, S/N #856180. Model PD12K18.
Single mag, cooling fan - that clinched it; this was not an aircraft engine, but a non-airworthy, ground power unit contracted out by the government to a company called “Bauer.” I’m not sure where the listing for a Lycoming came from, unless Bauer is the mod. Monogram simply slapped on a three bladed Hamilton Standard Hydromatic “test club” and released it as a Wright radial.
Here is the owner’s reply to my query about the engine: The Lycoming aircraft engine in the ad is an aircraft engine and it has the dual Magneto system, it is R 1820 just like the ad says. The fan as you call it is unrelated, could be used as a counterweight for running the engine in an engine stand. And yes Lycoming built radial aircraft engines, thank you, K_____
Watson! How often have I said when you have eliminated the impossible, whatever remains, however improbable, must be the truth?
Apparently, the photos in the ad are unrelated to the actual engine on the auction block, as the single ignition system is as readily apparent in the photos as it was on the model. I know the fan in the photo is an adjustable, blade fan and not a test club for ground testing aircraft engines. What’s more, the diameter of the fan is roughly the same size as the engine diameter in the photos.
The fact I had spent time, money and effort building a ground power unit severely cooled my ardor for kit radials. I briefly considered modifying the engine to an aircraft configuration, but quickly figured it wasn‘t worth the effort. However, since I had gone this far I decided to press on with the charade and complete the kit as configured. Here are the results of my latest diorama:
And you thought you had seen detail in a scale model. Check the weathering on this baby! Safety wiring was the most difficult part to reproduce. Note the paint scheme matching the box top display.
Fooled ya, didn’t I? I can’t count how many times looking at working 1/72 scale Dzus fasteners have driven me crazy to the point of almost giving up the modeling sport. Okay here is the model, compare with the above photos. Seeing as this is not an aircraft engine, I left off the Hydromatic stub propeller.
We do not build models, we recreate history in three dimensions. We’re three dimensional historians.
14 additional images. Click to enlarge.