rnt-popeiler
rnt-popeiler
rnt-popeiler
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mf-prcpelr<br />
ENTWICKLUNG GMBH<br />
Page 7 of 7<br />
supplom€nt to the Original Flight Manual No. E-614<br />
Edition March 3, 1999<br />
Section 7 Description of System and Functlon<br />
The propeller is equipped with an inlinitely variable hydraulic Pitch change mechanism operated by a<br />
hydraulic propeller govemor.<br />
On"" " prop'"ff"r jpeed is set, the govemor keeps the propeller speed constant, independently of<br />
manifold pressure and flight speed.<br />
iropeifei pitctr is operatel by a propeller pitch change knob on the instrument panel.<br />
Pulling the knob results In a decrease of rpm.<br />
rn" s-et rp. is kept constant by the govemor, independent from air speed and throtte setting. lf the<br />
*nJi* po*o is not sufficient to hold the selected Propeller speed, the propeller pitcfi changes to low<br />
pitch.<br />
ine propetler govemor is flanged to the engine' lt is driv-en diectly by the engine'<br />
The propeller govemor oil supply is part of the engine oil syslem'<br />
ln case of oil pres"ure loss due io a failure in the govemor oil system, the proPeller sets to low ptich'<br />
Section E Additional Instructlons<br />
Check of tachometer:<br />
During the annual check of the airplane, the accuracy_of.the.tachometer has to be checked. lf th6<br />
offset of the tachometer can not be corrected to a valui below 30 rpm, a placard with the rpm offset at<br />
2200 rpm, 2300 rpm andz4}O rpm has to be installed dose to the tachometer'<br />
Procedure for towino with hvdraulic constant soeed orooeller:<br />
The Propeller MW-22.... is approved for towing gliders and banner'<br />
Procedure for towino oliders:<br />
Airport StEubing-Wallm0hle<br />
94346 Atinq Ating / Gemany<br />
Tsleton, ,f9-(0)9429-9409-{t<br />
Teletax 4$(0)942+E432<br />
E-mall sal8s@mt-propeller.com<br />
Take off with full throttle and propeller speed set to 2700 rpm, or2500 rpm if the airfield conditions<br />
allow.<br />
Attei reactring tne safety height' propeller speed has to be reduced to 2500 rpm'<br />
Fult throttle remains until releasing the glider.<br />
Climbing with reduced propeller speed, reduces the noise emission-<br />
DeseendwithproPel|erspeedsetto2000rpmandpowersettingbetween15andlSinchmanifo|d<br />
pressure.<br />
Select a descend speed in a way' that a decrease of the cylinder head temperature of 28'C/min<br />
(so'F/min) will not be exceed€d.<br />
All other information remain valid'
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