[sci.military] Glider towing - effect on towplane

wmartin@STL-06SIMA.ARMY.MIL (Will Martin) (08/21/90)

From:     Will Martin <wmartin@STL-06SIMA.ARMY.MIL>
Having recently caught up on the back issues of the sci.military digest,
and having seen a repeat on the local PBS station just yesterday of 
a program about D-Day survivors recalling the battles on the 50th
anniversary, I have this query about gliders, which were discussed here
a while back:

What is the effect on the towplane's internal load capacity when it tows a
glider on takeoff?  The examples shown in the PBS program were Halifax
bombers towing troop gliders, and it wasn't mentioned (that I heard) if
those bombers also carried a bomb load in addition to pulling the gliders. 
At first, one tends to think that the glider takes the place of the
towplane's own load of stores, but then one realizes that the gliders
provide their own lift, and support their own weight.  So the towplane just
has to provide forward momentum. 

But then one thinks about takeoff -- pulling the loaded glider from a dead
start would have to take the towplane's entire capacity, so it couldn't
also be carrying its usual load. So then this one, at least, gets
confused. Do glider-towing bombers or cargo planes fly empty, carry a
reduced load of ordnance or cargo, or can they carry their full usual
load in addition to towing the glider? (If the latter, it certainly adds
to the arguments in favor of gliders! But it sure sounds like a free
lunch... :-)

Regards, Will
wmartin@st-louis-emh2.army.mil OR wmartin@stl-06sima.army.mil
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