Jetrader - Autumn 2016 - 58

aviation history Double-Deckers and Portholes for Pan Am's Juan Trippe By Jack Feir A Pan American Sikorsky S-42 cruising over the under-construction San Francisco-Oakland Bay Bridge in 1935. Photo: Tom Wigley collection. Times Were Changing In the late 1930s, most of Pan American Airways' destinations in the Pacific, Atlantic and South America had been in places with lagoons, harbors or rivers where the flying boats could land and take off. Especially in the Caribbean and South America, much of the terrain near destination cities was mountainous, and Pan Am simply lacked the resources to carve out runways and build terminal facilities, so it was most economical to serve those destinations with large flying boats like the Sikorsky S-42 and S-43, Martin M-130 and the Boeing 314. But by the mid-1940s, as World War II was winding down, Pan Am's fleet of large flying boats (or at least what was left of the fleet) was obsolete. Most of the destinations now had paved runways that had been constructed to accommodate the DC-3s and DC-4s that were doing so much of the heavy airlifting in the war effort, so the era of flying boats was over. To prepare for the new peace-time world of runways on solid ground, Pan Am's president, Juan Trippe, placed orders for two new types of aircraft. Both would be "launch orders," ensuring that Pan Am would get their aircraft before anyone else. These were the Republic Rainbow and the Consolidated Vultee (later Convair) CV-37. The New Candidate Airplanes The Rainbow was originally designed as a high-speed, long-range photo reconnaissance aircraft, designated as the XF-12. It was designed late in the war, with the prototype making its first flight in February 1946. It demonstrated a speed of 470 mph and could operate as high as 45,000 feet, and very few interceptor aircraft could catch it. 58 The official publication of the International Society of Transport Aircraft Trading Inside the Rainbow's spacious, pressurized cabin was a manned "full-service" photo lab so that reconnaissance film could be developed and printed in flight, ready to be examined immediately upon landing. That large cabin space also meant that it could be fitted out and offered as a 46-seat civilian airliner. The Rainbow might be viewed as the Concorde of its day: not large, but with speed and altitude capabilities beyond anything else available. Both Pan Am and American Airlines placed orders for Rainbows, expecting to use them on transcontinental and trans-Atlantic routes, where most of the existing aircraft were slow and unpressurized. In comparison to the Rainbow, the Convair CV-37 would be a double-deck monster, powered by six pusher-propeller engines and capable of carrying more than 200 passengers over 3,000 miles non-stop. It would be the largest passenger airliner ever built, with spacious lounges and separate men's and women's dressing rooms on both levels. Like the Rainbow, the CV-37 was a derivative of a military aircraft; in this case the origin was the Convair B-36 long-range bomber, from which the first derivative prototype was the XC-99 military freighter aircraft with a fuselage longer and wider than the B-36 and enough space to carry 400 fully equipped troops. The CV-37s that Pan Am ordered were to be civilian versions of the XC-99. In the end, neither the Rainbow nor the CV-37 went into production. Without the benefit of a military orders, Convair could not justify the Rainbow airliner development with only the few orders in hand from Pan Am and American. As for the CV-37, Pan Am also determined that it would have had unacceptable fuel consumption, so it would have been too costly to operate and would not meet the desired range capability. With the double-deck CV-37 out of the running, Pam Am's long-haul fallback was the Boeing 377 Stratocruiser, derived from

Table of Contents for the Digital Edition of Jetrader - Autumn 2016

A Message from the President
Calendar/News
Q&A: Mike Williams, Jetaire Group
Wish Upon a Star
Sunshine, Rain and Mixed Feelings
ISTAT’s 2016 Farnborough Airshow Chalet and Reception Continue to Achieve Record Attendance
Legal Status of Aircraft Engines and Effects on Financing and Leasing Transactions
Survival of the Fittest
Weathering Economic Gusts: Copa Airlines’ Pedro Heilbron Advocates Flexibility and Smart Growth
5 Places to Visit While Attending the ISTAT Latin America Forum
From the ISTAT Photo Archives
From the Jetrader Editorial Archives
Aviation History
Aircraft Appraisals
ISTAT Foundation
Advertiser Index
Advertiser.com
Jetrader - Autumn 2016 - cover1
Jetrader - Autumn 2016 - cover2
Jetrader - Autumn 2016 - 3
Jetrader - Autumn 2016 - 4
Jetrader - Autumn 2016 - 5
Jetrader - Autumn 2016 - 6
Jetrader - Autumn 2016 - A Message from the President
Jetrader - Autumn 2016 - 8
Jetrader - Autumn 2016 - 9
Jetrader - Autumn 2016 - Calendar/News
Jetrader - Autumn 2016 - 11
Jetrader - Autumn 2016 - Q&A: Mike Williams, Jetaire Group
Jetrader - Autumn 2016 - 13
Jetrader - Autumn 2016 - 14
Jetrader - Autumn 2016 - 15
Jetrader - Autumn 2016 - Wish Upon a Star
Jetrader - Autumn 2016 - 17
Jetrader - Autumn 2016 - Sunshine, Rain and Mixed Feelings
Jetrader - Autumn 2016 - 19
Jetrader - Autumn 2016 - 20
Jetrader - Autumn 2016 - 21
Jetrader - Autumn 2016 - 22
Jetrader - Autumn 2016 - 23
Jetrader - Autumn 2016 - ISTAT’s 2016 Farnborough Airshow Chalet and Reception Continue to Achieve Record Attendance
Jetrader - Autumn 2016 - 25
Jetrader - Autumn 2016 - 26
Jetrader - Autumn 2016 - 27
Jetrader - Autumn 2016 - 28
Jetrader - Autumn 2016 - 29
Jetrader - Autumn 2016 - 30
Jetrader - Autumn 2016 - 31
Jetrader - Autumn 2016 - Legal Status of Aircraft Engines and Effects on Financing and Leasing Transactions
Jetrader - Autumn 2016 - 33
Jetrader - Autumn 2016 - 34
Jetrader - Autumn 2016 - 35
Jetrader - Autumn 2016 - 36
Jetrader - Autumn 2016 - 37
Jetrader - Autumn 2016 - Survival of the Fittest
Jetrader - Autumn 2016 - 39
Jetrader - Autumn 2016 - 40
Jetrader - Autumn 2016 - 41
Jetrader - Autumn 2016 - 42
Jetrader - Autumn 2016 - 43
Jetrader - Autumn 2016 - Weathering Economic Gusts: Copa Airlines’ Pedro Heilbron Advocates Flexibility and Smart Growth
Jetrader - Autumn 2016 - 45
Jetrader - Autumn 2016 - 5 Places to Visit While Attending the ISTAT Latin America Forum
Jetrader - Autumn 2016 - 47
Jetrader - Autumn 2016 - 48
Jetrader - Autumn 2016 - 49
Jetrader - Autumn 2016 - From the ISTAT Photo Archives
Jetrader - Autumn 2016 - 51
Jetrader - Autumn 2016 - 52
Jetrader - Autumn 2016 - 53
Jetrader - Autumn 2016 - From the Jetrader Editorial Archives
Jetrader - Autumn 2016 - 55
Jetrader - Autumn 2016 - 56
Jetrader - Autumn 2016 - 57
Jetrader - Autumn 2016 - Aviation History
Jetrader - Autumn 2016 - 59
Jetrader - Autumn 2016 - 60
Jetrader - Autumn 2016 - 61
Jetrader - Autumn 2016 - 62
Jetrader - Autumn 2016 - Aircraft Appraisals
Jetrader - Autumn 2016 - 64
Jetrader - Autumn 2016 - 65
Jetrader - Autumn 2016 - ISTAT Foundation
Jetrader - Autumn 2016 - 67
Jetrader - Autumn 2016 - 68
Jetrader - Autumn 2016 - Advertiser Index
Jetrader - Autumn 2016 - Advertiser.com
Jetrader - Autumn 2016 - cover3
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