Missile=Awesome

Promises, Promises Tom

Cue Inspector Gadget...Go Gadget Go!!!!

Deleted

Any info to report?

THIS is the “root” of the problem here. We have “by the book” purists that say “your fuel flow is too high” (based on the IO-550A Chart) for maximum sea level flow...as listed by Continental...vs. ACTUAL users that are NOT selling cylinders, but trying to operate their planes to reduce cylinder temps in climb...AND applications with 10HP more than Missile application that recommend fuel flow +-28GPH in Eagle application. I don’t “think” I have an Auto-Lean issue as I am seeing elevated cylinder temps almost immediately in a VERY conservative cruise climb in our Missile. Appreciate the information. IF increase of a gallon doesn’t see noticeable improvement this is another area to “take a look at”.

29200 Displayed as 29.2...What I was told and when I look at Shadin value is shown as two digits and a decimal and another digit...

Looks like for a start I need to increase to 29.2 because we are likely NOT getting the fuel flow at full power that is indicated...

Thank you. That helps.

Sigh. Not trying to be a “nit”, but come on. The k factor was set with the Shadin that has been in the plane for years...PRIOR to our getting the plane. I am not going to “assume”, but I would do just that regarding the previous owner. I would think they moved “beyond” a starting point...and so THAT is why the difference from that starting point of 29.2 to our current setting of 28.6 is being given the “benefit of the doubt” that IS the correct fuel flow for engine vs. the starting point. So again, my question “is 29.2 a HIGHER or LOWER indicated fuel flow compared to 28.6? We JUST had tank resealed and I am trying to get a better understanding of on board fuel with crossover into AUX tanks (gauge reading/accuracy etc.) that was NOT possible with unknown of seeping fuel/quantity in vs. indicated vs. evaporated in seepage... I can research k factor on my own, but thought someone might know...

So this has been frustrating (trying to fix high temps in climb and NOT be “exceeding recommended fuel flow”/losing efficiency in our engine), but I “believe” (based on a LOT of information) that we are not “too high on fuel flow now” with our Missile. We are seeing EGT’s up at 1400-1450 in climb (With 1500 in cruise up high)...some of this, of course, could be probe placement or k factor setting in our Shadin totalizer. The Missile has NO cowl flaps and is pretty tightly cowled. Regardless of Continental “specs” for max fuel flow for IO-550A it would appear that in the Missile conversion the flows for 310 Eagle appear more “on target” to give cylinder temps/Efficiency/EGT that is closer to 1250. I look forward to having full power adjustment to 27.5 (Max per my A&P that he can apply for our engine) and doing a climb with fuel flow % power in our EDM830 vs. separate Shadin configuration we have now. Shadin and JPI say our K factor should be 29.2. Ours is currently set for 28.6. I am going to plug in 29.2 on EDM830 AFTER the engine fuel flow is adjusted and I complete a couple of climbs to NOTE changes. Anybody know what did in those two k factors theoretically means?

Oh wow. Be careful in that kinda heat. I know you know, but hydrate, hydrate, hydrate. We have been stuck in mid 90’s with 70+% humidity in Iowa for last few days...It’s friggin’ oppressive. Gonna be 80 on Saturday with 59 dew point...Gonna be heaven

55 per Rocket Engineering as told by Aviation Consumer...

Does your FF decrease as you climb or stay the same? If you have a standard pump and don't lean it you will be very rich in the climb at higher altitudes. Our fuel flow decreases with climb. We must have the altitude compensating fuel pump. I would WELCOME having more fuel flow in the climb and having option to lean manually.

EVERY OTHER Missile owner I have talked with is flowing 27.5 to 28 at take off power with elevations <2,000’. My sampling is SMALL (three other owners), but the total Missile fleet is also small. (We are #42 out of? I believe <60 total conversions)

Yes, please give elevation of airport and your fuel flow at full power on take off. I am NOT a lean to EGT guy. I don’t mess with mixture as I climb. I get up there at max MP and mixture and I reduce RPM and run LOP in cruise. Not sure if I have the altitude compensating fuel pump on my Missile.

When I discussed fuel flow at take off power (MP and Prop full forward) being a gallon low he said “Won’t make much difference”. My response was “I am having to cruise climb at 150knots indicated and I STILL have cylinders over 400” so let’s raise fuel flow a gallon and let me SEE the difference...My plane NOW as configured will NOT allow leaning on ground at idle...It will kill the engine. I am full rich and taxing at 2GPH... This is going to change. Looking forward to seeing 27.5GPH on totalizer when I am going down runway on takeoff...

Kind of a significant edit there...

Any thoughts on “crossover” for fuel into AUX? (Fuel level in Mains when crossover takes place and shows in AUX). I am thinking about 15-17 gallons in mains...Any more in mains and you see fuel in AUX. Any less and the AUX tanks visually show “Bingo” Fuel.

Are you using 71 in your weight and balance computations? I am not. Our station for fuel is 48.3...

Our plane lost some serious weight with the removal of vacuum and old HSI/Attitude and install of dual G5’s. The mains on our plane are 32x2 and Aux is 17x2=98 gallons. Something is NOT right...

Missile conversions were ALL to J or K airframes. All Mid-Body.

They are both J’s with Missile conversion -a- His doesn’t have the Monroy tanks...Mine does. I’m stating that the AUX tanks are NOT where he is showing them on the wing with tape. I don’t know if the speed brakes move the cap or what, but my tanks...the tanks he is interested in getting are NOT where the tape is. We have had 75 gallons of fuel in the plane and I have trim right where he stated...Based on my CG we were within envelope. With his 71? NOPE. Plane was fine as loaded with ZERO CG issues....So I am confused by the comments and the Rocket Engineering graph? All I know...

That is NOT where the Aux tank is located if you are choosing the back area of the wing. Look at my photos in Missile Coming out Party.

I could listen to Tom all day too. What an awesome personality. Lucky you Paul. Special man.