Some early airships were fitted with wing planes, with the intention of providing additional dynamic lift . However, the added lift of planes can be less efficient than simply increasing the volume of the airship.
12.
Aero-dynamic lift, drag, and thrust are all non-uniform forces ( they are applied at a point or surface, rather than acting on the entire mass of an object ), and thus create the phenomenon of weight.
13.
The flight itself was cancelled because of the weather, but not before the politicians had arrived at Cardington : they accordingly embarked and had lunch while the ship rode at the mast, only kept in the air by dynamic lift produced by the wind.
14.
The " Macon " was being flown " heavy " and was operating at full power not only in order to have sufficient dynamic lift, but also to have enough control to fly in the severe turbulence through a mountain pass near Van Horn, Texas.
15.
Dynamic lift in past airships has been about 10 % of the static lift . Dynamic lift allows an airship to " take off heavy " from a runway similar to fixed-wing and rotary-wing aircraft . However, this requires additional weight in engines, fuel and landing gear, negating some of the static lift capacity.
16.
Dynamic lift in past airships has been about 10 % of the static lift . Dynamic lift allows an airship to " take off heavy " from a runway similar to fixed-wing and rotary-wing aircraft . However, this requires additional weight in engines, fuel and landing gear, negating some of the static lift capacity.
17.
Two further engine stoppages caused further loss of gas : by now LZ 4 was only being kept in the air by dynamic lift generated by flying with a nose-up attitude, the resultant drag reducing its speed to, and at 5 : 24 pm a landing was made on the Rhine near Oppenheim, short of Mainz.
18.
Such a hybrid craft is still heavier than air, which makes it similar in some ways to a conventional aircraft . The dynamic lift may be provided by helicopter-like rotary wings ( the " rotastat " ), or a lift-producing shape similar to a lifting body combined with horizontal thrust ( the " dynastat " ), or a combination of the two.
19.
Ocean sunfish, for example, have a completely different system, the tetraodontiform mode, and many small fish use their pectoral fins for swimming as well as for steering and dynamic lift . Fish with electric organs, such as those in the knifefish ( Gymnotiformes ), swim by undulating their very long fins while keeping the body still, presumably so as not to disturb the electric field that they generate.
20.
This work comes from increasing instability in the low levels by raising the temperature or dew point, or by mechanical lift . Without the aid of mechanical forcing, a parcel must reach its convective temperature ( T c ) before moist convection ( cloud ) begins near the convective condensation level ( CCL }, whereas with dynamic lift, cloud base begins near the lifted condensation level ( LCL ).
