Manuel de vol

Salut les gars,

nous recherchons un manuel de vol pour le G-50 et le BR-20.

Une idée ?

Merci par avance à ceux qui maîtrisent déjà un peu le jeu...

;)

En direct de ATAG et écrit par RAF74Buzzsaw :

Salute All

I didn't notice a guide for the Fiat G-50 on your forums, and have flown it a bit lately, here's what I have learned for anyone interested.

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Salute

The G-50 is actually one of the better modelled aircraft in the Sim now. It now has WEP power modelled, which can be used for limited periods.

The G-50 has a radial air-cooled engine, it is quite finicky, tends to misfire and stumble unless you make sure your Cylinder head temperatures and oil temperatures are correct before you attempt to take off.

Oil temperature is controlled with the oil radiator, which is normally opened to about 25%, cylinder head temp is controlled by the air vanes which open at the back of the engine to allow air flow, these are controlled by a player with the same input as a glycol radiator.

Oil temperatures should be approx. 70 degrees C prior to takeoff and somewhere around 70-80 for inflight. Avoid going over 90C. Cylinder head temperature should be at least 200 degrees C and many people run it about 220 degrees. Try to avoid going over 250C for longer periods, and don't go over 300 C. If you let the oil temperature drop below 60C or the cylinder head drop much below 200C, you will get missing on the engine, this is probably what most players report when they have difficulties.

Start up is done with oil and radiator vanes closed. There is no fuel cock, you don't need to open one, there is a standard dual Mag, with three positions, 1,2, and 1+2 (use the last) and you should give the manual fuel handle a few pumps. Crack the throttle about 10-15%. You can reduce the heat up time of the engine after the initial start, by increasing throttle slowly till the engine starts to miss, then backing off, and repeating. Obviously you need to keep your brakes on while doing this. Keep a close eye on your oil and cylinder head temps when warming up. You need to select a sensor to monitor your cylinder head temps, the multi position switch is on the right dash, each position monitors temps at two cylinders, usually I set it to the middle position and leave it there. You may need to open the oil rad during warm up, before the rad vanes, the cylinder heads usually take a little longer to warm up to proper operating temps and oil can overheat while you wait.

Make sure you open the radiator vanes prior to takeoff, usually approx. 60%. Pitch on the constant speed prop is set to full fine, 2250 rpm, boost to either max throttle, 740, or WEP, 840, although you really don't need to go WEP for takeoff. After takeoff, reduce pitch and rpms to 2200 till you are trimmed out, then 2100 rpm for continuous running or climb.

Beyond the engine temperatures, the G-50 also must have its gas mixture managed.

Mix should be 100% on start and takeoff. As you climb, you will need to reduce mix to allow for the less dense atmosphere at higher alts. Usually you need to start reducing mix around 1000 meters. Again, the engine will start to miss if you don't adjust the mixture, but even before it starts to miss, rpm will drop. Adjust the mix by watching your rpm gauge and adjusting for max rpm.

The G-50 is a fun plane to fly, it has a lot of elements missing on other planes, for example, full trim for all the control surfaces, including elevator, rudder and ailerons. You can trim it out perfectly for hands off flight.

It does not seem to suffer from any altitude issues, other than the fact it was designed primarily as a low alt aircraft, it flys well at 4.5 thousand meters, where trimmed out at cruise settings, 2000 rpm and 650 boost, it will cruise all day at 320 kph indicated.

Maximum power, using 2250 rpm and WEP, (840 boost) can be used for only a short while, I recommend a minute or less. The engine is only capable of generating this boost at lower altitudes. Normal combat power is 2200 rpm and 740 boost, with sustained power at 2100 rpm and 740 boost. Low cruise at 2000 rpm and 650 boost. In all these, you need to be aware of your oil and rad settings, you can cool your engine too much as well as overheat it.

The engine seems quite thirsty at higher boosts and rpm's, watch your fuel, gauge on right side of seat, you need to pass your mouse cursor over it to get a reading.

The G-50 has flaps which are deployable in increments, you should use partial flaps for easier takeoff, and they are also useful in combat.

It can be a little tricky to land, make sure you use full flaps and watch for the low speed stall, you need to maintain some power otherwise the plane has a tendency to drop out from under you.

The plane also does have a nasty stall, you have to be careful not to pull too hard in turns. With flaps it will give Hurricanes and Spitfires a go in turn contests, although I would not rely on this, the excellent rollrate is perhaps more useful.

It is slower than all other fighters in the game, with the exception of the CR42, Gladiator, and perhaps the 110 at certain altitudes.

The 12.7mm MG's are limited to two in number, but have a lot of ammunition, the plane is actually quite a good bomber killer, especially versus Blenheims. The Italians made the only HE shell for a 12.7mm, not a huge amount of power, but when combined with AP, can be effective. These MG/Cannons are relatively low velocity, so not quite as good for dogfight situations where high deflection is necessary, better to get closeup.

J'en profite pour préciser :
le sélecteur 6 positions en haut à droite du cockpit, je le bascule sur en position 2 pour avoir la température sur le milieu du moteur. La jauge température correspondante se trouve en haut du sélecteur. Pas de décollage en dessous de 150 °C, température de croisière idéale aux alentours de 200°C, en combat on peut tenir 275°C. Pour l'huile, la jauge se trouve à gauche du sélecteur 6 positions. L'amplitude de température de fonctionnement est plus serrée : rien en dessous de 40°C et jamais au dessus de 80°C.
La carburation :
en petit pas d'hélice, 95% à 1000m, 90% à 2000, 80% à 3000.
Pour raccourcir le temps de préchauffage pour le décollage :
Switch magnétos 1, 2, 1+2, hélice petit pas, puissance 5%, tous les radiateurs fermés ! contact !
Surveiller la jauge huile et dès que la température arrive à 35-40°C, ouvrir le radiateur à 50%. Patienter jusqu'à la jauge air ou eau grimpe à 150°C, ouvrir le radiateur à 50% et décollez.
Très vite en l'air, les températures avec la vitesse de vol augmentant (pensez-y en BZ !) vont chuter donc nécessitent des ajustements des radiateurs.

http://forum.1cpublishing.eu/showthread.php?t=20569

Pas aussi calé que stirwenn mais il y a ça aussi > G 50

Merci Stir. Il me reste à bosser.

Sur les caractèristiques générales de vol de l'appareil, c'est sensiblement le même défi que dans l'actuel IL2 : plus lent, mais plutôt bon dogfighter, un armement un peu juste mais qui peu suffire à courte portée.

Coté gestion moteur, le pas d'hélice, les gaz, la richesse, les volets de radiateurs, les trainées, les températures huile, tête de cylindre et pourquoi pas la température du nez du pilote (car sans cockpit) je pige bien. Par contre, je suis dubitatif sur le "boost". Est-ce un système supplémentaires aux gaz ? Est-ce lié au RPM "hélice" ? Qu'est ce que ça contrôle réellement ?

"Intuitivement", j'ai l'impression que c'est comparable à la puissance qu'on envoie sur l'arbre d'un hélico, alors que le turbomoteur tourne toujours à la même vitesse.

Sur quel dispositif est-ce que le "boost" agit et comment ?

De mémoire je crois que c'est un mélange injecté donc les tours moteur seraient concernés. A mon avis, le boost est plus là pour soutenir le régime moteur que d'excéder une puissance pendant un dogfight.
Pas d'accord avec toi pour l'armement : câlé à 250m, mes deux 12.7 font bobo. Une tracante-incendiaire ou antiblindage sur deux pour compenser ce viseur vraiment naze.
Je l'aime bien ce bossu : il est robuste, franc du collier.

+1 pour l'armement, les 12.7 sont très efficaces !

Pour tous ceux qui se mélangent les crayons avec les différentes commandes moteur, voici quelques généralités qui permettront de mieux comprendre leur usage :

http://home.nordnet.fr/dmorieux/commandes_moteur0001.htm

thx Touch

Hi Boop

http://wiki-cod.swil.fr/index.php/Fiat_G.50
(Il date un peu mais il m'a été utile pour voler en Stuka et He-111)