With over 500 views and no right answers; here they are.
The British Bristol works was an unsuccessful contender for a large torpedo-bomber requirement in 1917 with their Bristol Braemar four engine triplane entrant, so they used the basis of the Braemar for the Bristol Pullman passenger aircraft. The Pullman was so named as the interior resembled a first-class railway coach.
The Bristol Pullman was a large (for the time) airliner with an ENCLOSED cockpit, differing from the Braemar OPEN cockpit with it's gun position as well, and also had a rectangular tapered box-shaped fuselage. The Pullman's forward cockpit was enclosed by multiple flat clear panes forming a "semi-rounded" wraparound enclosed fuselage nose. The design was for a crew of three and 14 passengers; with four engines enclosed also IN THE FUSELAGE!. These engines were coupled to two four-blade large propellers mounted outboard on the center wing of three wings via a system of cables and pulleys. (I am NOT making this up!) The nervous crew flew with axes to help exit in an emergency. The Pullman was a taildragger triplane with two tandem sets of large fixed main wheels, four in all with one small diameter tail wheel. RAF test pilots who test flew the Pullman preferred the Braemar open cockpit.
Here are the answers:
1a. The Bristol Works. 1b. Bristol Pullman.
2. The Bristol Works. 2b. Bristol Braemar.
3. A fully enclosed cabin and cockpit. Heretofore most aircraft were open cockpits with a windscreen.
4. The four engines mounted WITHIN the fuselage were coupled to the propellers with a system of cables and pulleys which never worked reliably or well.
5a. Powerplants were four Liberty 12 in-line piston engines. 5b. 400 Hp each.
6. BONUS-The oddity in addition to the engine/prop couplings was that the Bristol Pullman NEVER carried a paying passenger!
Pullman Specs:
Crew: 3 and 14 passengers
Powerplant: Four Liberty 12 inline, piston engines, 400 Hp each.
Max speed: 135 mph
Wingspan: three wings stacked of 81' 8" each
Length: 52'
Height: 20'
Weight: loaded, 17,750 lbs.
There is more to the history. Despite the aeronautical difficulty, the Royal Mail Steam Packet Company became interested in a Bristol version of the Braemar/Pullman called the Tramp in 1919, as a 'spares carrier' for the Royal Mail. Bizarrely, the Tramp was to be powered by an internal STEAM engine; a considerable challenge. Two Tramps were actually built, again, I AM NOT MAKING THIS UP! These were to have an internal engine room with a light but powerful steam engine. It proved impossible to do, along with the reliability of coupling issues to the four propellers.
I thank all who were perplexed by this aeronautical quiz.