MAC PARA MacJet, User Manual

Page: 23 / 40

23
EXTREME FLYING MANOEUVRES
Frontal Collapse:
When flying with a paramotor the reflex profile makes it practically impossible to induce
a front tuck, except with trim closed setting using special techniques. Such collapses
provoked at higher speeds can lead to extremely deep collapse and its recovery
requires short and equal application of both brakes.
When experiencing a very large front tuck, a frontal rosette can occur (the wingtips
move forwards: forming a horseshoe shape). Short and gentle braking can avoid this
deformation.
A quick recognition of the situation and a quick reaction by braking on both sides for as
long as the collapsed wing is behind the pilot helps the recovery and limits the altitude
loss.
Parachutal stall (deep stall):
A parachutal stall can be caused by, among other reasons, turbulence at too
slow a speed trim or too much brake application when a power unit is added.
Porous canopies (UV influence) or canopies out of trim (stretched or shrunken
lines) are much more susceptible to a parachutal stall and therefore should not
be flown. These are some of the reasons regular checks should be carried out
on your glider. A wet canopy or temperatures below zero centigrade (0°C) may
also cause a stable parachutal stall.
When releasing the brakes the MacJet will usually spontaneously recover from
a parachutal stall within 2-3 seconds. If the canopy remains in a parachutal
stall, it is sufficient to release trims or to push the accelerator.
Attention! If brakes are applied while in a parachutal stall, the glider may
suddenly enter a full stall!
Full-stall:
Practically does not occur, may happen only as a result of serious neglect or intentional
action of the pilot. You have to be careful when flying at low speeds until fully familiar
with brake operation. The wing recovers spontaneously in the initial phase of stall,
otherwise use standard procedures.
To recover from a full stall, smoothly release both brakes simultaneously until 90% of
leading edge reopens, then release brakes rapidly. The glider ends the full stall on its
own without surging forward.
WARNING!! If the brakes are released rapidly and asymmetrically, the glider may surge
almost 90° and suffer an extensive asymmetric collapse.
The danger of overcorrecting and overreacting exists during all extreme flight
manoeuvres. Thus, any corrective action must be gentle and controlled and done with
feel for the glider!