Beechcraft Model 34 "Twin Quad"

riggerrob

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The Beechcraft Model 34 Twin Quad is explained in detail by Randy Mertens’ book “Closet Cases” (Pilot News Press, Kansas City, Missouri,1980).
Beechcraft conceived the concept of a 20-seater feeder liner during WW2. The high-winged, V-tailed plane looked like a twin, but each propeller was driven by a pair of 8-cylinder, Lycoming GSO 580 engines buried in the wing and driving through a combining gearbox.
The program slowed after an electrical fire caused a crash on January 17, 1948. But what really killed the Beech Model 34 program was the vast numbers of military-surplus C-47s dumped on the market.

Mertens’ book also details the Beech Model 73 Jet Mentor and flightless Beech T-36A military trainer and transport.
 
Last edited:
From a couple of days ago:
 
The Beechcraft Model 34 Twin Quad is explained in detail by Randy Mertens’ book “Closet Cases” (Pilot News Press, Kansas City, Missouri,1980).
Beechcraft conceived the concept of a 20-seater feeder liner during WW2. The high-winged, V-tailed plane looked like a twin, but each propeller was driven by a pair of 8-cylinder, Lycoming GSO 580 engines buried in the wing and driving through a combining gearbox.
The program slowed after an electrical fire caused a crash on January 17, 1948. But what really killed the Beech Model 34 program was the vast numbers of military-surplus C-47s dumped on the market.

Mertens’ book also details the Beech Model 73 Jet Mentor and flightless Beech T-36A military trainer and transport.
Good Day All -

I spent two days at the Kansas Aviation Museum scanning photos and scanned the Model 34 folder - a few teasers attached. Will post more once I get them sorted out.

Enjoy the Day! Mark
 

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Good Day All!

Back at the end of May, I spent a few days in the Kansas Aviation Museum archives scanning portions of their collection. The Model 34 folder happen to have an early brochure on the design - pages attached.

Enjoy the Day! Mark
 

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...and a few more scans for your perusal...
 

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Good Day All!

Back at the end of May, I spent a few days in the Kansas Aviation Museum archives scanning portions of their collection. The Model 34 folder happen to have an early brochure on the design - pages attached.

Enjoy the Day! Mark
Thanks! The information about the belly skids was all new to me. I thought that pic you posted of it belly landed was an accident, but now I realize it was most likely just a test. This aircraft is way more interesting than I had originally considered.
 
There was enough material about the Model 34 to justify moving the posts from the generic "Projects and prototypes" topic into a thread all of its own, so here it is.

Although not of very good quality, here is a photo of the Twin Quad from a rarely seen angle, and an old article from an unknown source (though it looks like Flying Review to me) and a beautiful in-flight photo that wasn't shared here before.

1661414_10151700184502824_1542944031_n.jpg 16807104_10210005062857874_6968899483105992330_n.jpg
462677885_10233887374794549_706202057479540188_n.jpg
 
Oh, that's pretty. Classic Beech.

The Beechcraft Model 34 Twin Quad is explained in detail by Randy Mertens’ book “Closet Cases” (Pilot News Press, Kansas City, Missouri,1980).
Beechcraft conceived the concept of a 20-seater feeder liner during WW2. The high-winged, V-tailed plane looked like a twin, but each propeller was driven by a pair of 8-cylinder, Lycoming GSO 580 engines buried in the wing and driving through a combining gearbox.
The program slowed after an electrical fire caused a crash on January 17, 1948. But what really killed the Beech Model 34 program was the vast numbers of military-surplus C-47s dumped on the market.
Oh, ewww...

I'd hate working on those engines/combining gearboxes.
 
But they managed to beat the 'Curse of the Long Drive Shaft' which had bedevilled sundry US designs ??
 

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