a previous poster made a query re -420 engines, (EL AL?)
Photos: Boeing 707-430 Aircraft Pictures | Airliners.net
Photos: Boeing 707-441 Aircraft Pictures | Airliners.net
they were all (-420) built with RR conway's (1st turbofans, actually)
hence the designation 707-420 to indicate thus,
small LE device, larger wing,
tail heightened, rudder boost and large ventral fin added.
(CAA requirement)
-420 orders
boac, cunard eagle, varig, el al, air india, lufthansa.
(please, i'm no anorak lol)
the best livery imho
Photos: Boeing 707-436 Aircraft Pictures | Airliners.net
-120 had jt3c turbojets (not transatlantic intended, but did op initially)
-120B had jt3d turbofans,
this was a very different machine. (later some with full span LE slats)
-138 jt3c (i think)
VH-JET#1 & Her Sisters
shows early image, stumpy tail, no ventral fin, and turbojets.
then they were converted, or newly built to -138B, with jt3d fans.
(all a Qantas order, shorter body than -120)
-138B had full span LE as per this foto, plus small ventral fin.
G-AVZZ - Laker Airways Boeing 707 Aircraft Photos - Glasgow - Prestwick @ Airplane-Pictures.net
-220 had jt4a turbojets, with -120 body, for braniff only.
-320 had jt4a's, larger wing, transatlantic range, but had west coast range penalty.
-420 similar to -320 with RR conways for BOAC and others.
-320B had jt3d turbofans, some had full span LE (advanced) also many
differences in tail and fins etc.
707-320C ditto engines, the best range option.
all full span LE, major wing changes as 320B adv. extra e/exits.
opened up west coast non-stops, with range penalty on few occasions,
MTOW 151000kgs
when i was with BMA we fitted 212 Y seats to our 3 707-320C's for non-stop charter LGW-LAX/YVR (amongst other places)
erm, that was interesting !
never saw any shiny sliver on the oleo's on taxi-out from LGW
as poster 411a mentioned you also had different cowl inlets on jt3d's,
thin ones on older and larger cowl flaps on newer engines.
he is adamant that -420's operated to west coast non-stop on a regular basis but i dont think i can re-call this personally.
<his quote>
-436, yes normally operated non-stop LHR-LAX....just (as I have described previously).
In addition, AirFrance operated their 707-328's non-stop to SFO as well, from ORY....just.
Likewise, ORY-LAX...just, using JT4A-17 engines.
I remember these flights well, as they would request a direct routing LAX, as they were a tad short on fuel.
<unquote>
hope he can enlighten me re -436's as its too far!, thanks.
also someone queried 155000 as being max fuel?
(then the following posters confused this with mtow?)
the o/poster was talking about FUEL weight
(he also quoted that in pounds/lbs,!!)
the 707-320C mtow is 151000 kilos/kgs lol!!!
**note the pounds/lbs v kilos/kgs confusion here, and mtow/fuel max weights,**
(i hope you agree that some of you chaps dont be so quick to reply lol, thats how confusion happens in real-time, dangerous example of how easy it goes wrong?)
i personally really do not think BOAC 707-436's ever op'd non-stop to USA west coast unless they were very lightly loaded.
they were never scheduled to op non-stop.
EL AL did schedule TLV-NYC with theirs? (note the question mark)
i hope i did not bore you.
rog