Lear 24a Performance #'s?

[passion4flying]

Hey all,

Can anybody with Lear24a experience give me insight on that specific airplane. I am looking for performance numbers. Fuel flow numbers. range. and anything about that type would be helpful. I appreciate it.

Passion

 

[captainv]

only flew the 24 a few times, but 20 series numbers are pretty similar.

Fuel burns would be 2200 first hour, 2000 second hour, etc. certified to 450 or 510 depending on pressurization system. cruise at mach .78 normal cruise (440 knots), Mmo or .82

i know the 25D carried 6000 of gas and i read somewhere it had a range of 1450 miles. um, no. in practical terms, you could do that if you pulled it back to max range cruise, flamed out at 450 and glided it in to land. 1000 miles was more realistic, and that's pushing your reserves. in the 24, i believe the rule of thumb was be on the ground at the two hour mark, period.

24's a twichy ba$tard at altitude, but an absolute rocket ship. 7000 fpm + on takeoff with a light load, you'll overspeed at 410 if you don't pull the power off immediately when you level out...

hope this helps.

 

[Rick1128]

The 24A has to be treated with respect. As an early 24 is still carries over much of the 23. The later 24's systems tended toward the 25 systems. Not so many surprises. Like c/b's in the hell hole. The 24 carries 5590 lbs of fuel. There is not really a 24A, it went from 24 to 24B. Also be careful as there are several 23's out there that have been converted to 24s. Many of these owners call them 24s, but some of the systems are different. And it could bite you.

For fuel burn, I use 2000 the 1st hr, 1700 the 2nd and 1500 the 3rd. You can get 3 hours out of the aircraft, but you have to watch your operating procedures and watch your fuel flows. I can't find it and it has been awhile since I have flown a 23 or straight 24, but I seem to recall that the 23 and early 24s were limited to FL410.

As for range 1000nm is reasonably doable without an alternate. Depending on the winds. On takeoff, you have to get the flaps and gear up rather quickly or you will overspeed them. Also if you keep the power up, at the cost of fuel economy, you can get in excesive 10,000 FPM light and cool.

 

[banned username 2]

The 24 carries 5590 lbs of fuel.

For fuel burn, I use 2000 the 1st hr, 1700 the 2nd and 1500 the 3rd. You can get 3 hours out of the aircraft,

OK, if my math is correct, using YOUR number, after flying 3 hours (which you claim you can/have done) you are landing with 390 lbs. total in the tanks... (5590 - 2000 - 1700 - 1500 = 390)

Call me what you want, but that is nuts (and illegal) because even using your numbers VFR you would have to have 750 lbs in the tanks (which is still nuts!) when I flew the Lear 35 (which is much more fuel conservative) we used to shoot for 1500 lbs on landing but would go as low as 1200 lbs.

 

[Rick1128]

First of all those are flight planning numbers. As we all know some airplanes do a little better in the fuel department that others. And that is among the same type. Many of the long time 20 drivers will plan for a fuel stop one place, but if everything is right continue on. Step climbing when they get lighter, etc. But each airplane is different. In the LR20s I personally have seen as much as 500 pph difference between same model aircraft at the same weight, altitude and temp. Until one really know that particular aircraft, they need to be conservative.

 

[rice]

WARNING * THREAD HIJACK * WARNING

Falcon Capt,
Nice Avatar!!
Glad to see you've finally gotten your priorities in order!!
Have to say thats one helluva machine you've got there. Looks big enough to more than a few slabs all at one time. Maybe even big enough to feed 10 - 12 of your closest board buddies.
Can anyone say party!!!

 

[bigD]

lol...I think it's funny that essentially every thread on the corporate board eventually turns into a discussion about BBQ.

Awesome.

 

[banned username 2]

Re: WARNING * THREAD HIJACK * WARNING

Falcon Capt,
Nice Avatar!!
Glad to see you've finally gotten your priorities in order!!
Have to say thats one helluva machine you've got there. Looks big enough to more than a few slabs all at one time. Maybe even big enough to feed 10 - 12 of your closest board buddies.
Can anyone say party!!!

HAHAHAHA!!!! You guys are killing me... "THREAD HIJACK" ROFLMAO!!!!!!!!!!

I am currently in counseling for Obsessive Compulsive BBQing.... It is a 57 step program, I think the slabs of ribs I smoked the other night were step 3! Did them with Hickory... I think Applewood is step 6!!!

 

[LR25]

I believe all 20 series are certified to 450 whether or not if they have the 450 or the 510 cabin. At some point they decided it wasnt a good idea or something, not sure though..

Most 20 series can make it to the 3 hour mark, but you have to have the gear down with a landing clearance, and thats landing with a 1000 lbs, not the best thing to do I must say.

This goes without saying, they are quite enjoyable to fly, but after about 2 hours, I ready to get out, which also goes without saying, you know, the fuel thing.

 

[Rick1128]

LR25, please note the LR23 is a 410 aircraft. I found my book and found that the 24s before sn 134 were originally certified to only 410, but some had been modified with a bob weight to allow the aircraft to fly upon 450. Not all of them are so modified. So you might want to watch what aircraft you got.

Some 20s are certified for 510, however they are later aircraft with the 8A engines and a stall box installed on the engine. What the stall box does is when you slow below I believe .72m the ignitors come on. I have flown a 24 certified for 510, it takes forever to get there. You have just about got to be out of fuel and it is next to impossible to get down.

 

[banned username 2]

but some had been modified with a bob weight to allow the aircraft to fly upon 450.

What is this? What does it do?

 

[LR25]

I didnt realize that some airplanes didnt have the bob weight?

I flew a 24D a little with -8 engines, and a straight 25, what a piece!

It has been a few years, but now that you mention it, I do remember the stall boxes now.

If you have the stall boxes installed, is the airplane certified to 510?


We had 25D's with 510 cabins, but didnt have the stall boxes. We actually had one of the first 510 cabin airplanes, the 2 CAB air switches were alot different from the standard ones that you would find normally.

 

[rice]

LR 25

WTF brother?
We've taken over your your mundane Lear thread and turned into a perfectly righteous BBQ discussion but you insist on talking 'bout airplanes. Hasn't your browser updated this sight and reflected its new name?
BBQinfo.com Didn't you read the new logon rules posted by our beloved moderator? "All posts on the Corporate Forum must contain at least one reference to BBQ or they will be deleted."

Falcon Capt.,
Man you must really have it bad!!!! Bet you didn't even realize the Freudian slip when you mentioned the "57 step" program"; as in Heinz 57 . BTW, no chance of me getting the Twins out there but I'm sure Big D would bring his sister if you asked.

 

[crash-proof]

Re: Re: WARNING * THREAD HIJACK * WARNING

Only if you bring the twins. I think that is a must.

Falcon Capt. I think you need to snab the recipes from that Brazillian BBQ place!!

I'd like to set up a brazilian bbq in my yard, it doesn't use a grill, rather, all the meat is set up on huge skewers, somewhat like a giant shishkabob (sp?). MMMMMMmmmm.....da boooommmbbb



OK, sorry, back to lear 24s and 25s.

 

[banned username 2]

BRAZILIAN BBQ!

Boi Na Braza - right near DFW... EXCELLENT!

Fogo De Chao - Various Locations - EXCELLENT!

Sal e Carvao (Salt & Charcoal) Schaumburg, IL - EXCELLENT!

Texas De Brazil - Various Locations

Rei Do Gado - San Diego - Very Good!

OK Guys, here are a few... I am on a quest for more!

 

[banned username 2]

Re: Re: Re: WARNING * THREAD HIJACK * WARNING

I'd like to set up a brazilian bbq in my yard, it doesn't use a grill, rather, all the meat is set up on huge skewers, somewhat like a giant shishkabob (sp?). MMMMMMmmmm.....da boooommmbbb

You are right, the only thing better than Texas BBQ is Brazilian BBQ!!!!!!!!!!!

I can't wait for my Brazil trip next month!!!!!!!!!!!!

 

[crash-proof]

Re: Re: Re: Re: WARNING * THREAD HIJACK * WARNING

You are right, the only thing better than Texas BBQ is Brazilian BBQ!!!!!!!!!!!

I can't wait for my Brazil trip next month!!!!!!!!!!!!

ehhemmm...i think the brazilian's better...but please, no flames, it's the weekend. (only if they're bbq flames!)

here's our brazilian bbq in miami, expensive, but hey you only live once, eh?

http://miami.citysearch.com/review/2490001/editorial/?cslink=cs_profile_standalone_review


Excuse me while i go check out The Eagles, playin in an hour!!!

 

[LR25]

Okay, F@*% airplanes, I'm going to light off the grill!

Ignition, fuel on.

 

[bigD]

Excuse me while i go check out The Eagles, playin in an hour!!!

::in my best Lebowski voice::

"I hate the f*ckin' Eagles, man!!!"

And can someone please answer the good Captain's question about bob weights? I'm curious about that myself. Did a search on the net, and didn't find anything specific to the Lear.

 

[banned username 2]

Re: Re: Re: Re: Re: WARNING * THREAD HIJACK * WARNING

ehhemmm...i think the brazilian's better...but please, no flames, it's the weekend. (only if they're bbq flames!)

I said Brazilian IS better, Brazilian being the only thing above Texas BBQ in the food chain!

"Bob Weights"???

Anyone???
Anyone???
Buehler??
Buehler??
Buehler???

 

[KingAirer]

There is no contest. THe best chicken can be cooked on a Holland Grill, write that down, HOLLAND GRILL...You guys just dont know if ya havent tried it. It takes a long time to cook, its a slow cooker, but it cooks it all the way through. Cooks the chicken so good it will melt in your mouth! Scouts honor

 

[Rick1128]

There is an arm and bellcrank attached to the F/Os control column. To the bellcrank is attached a weight. I can not find how much it weighs, but I seem to recall it is about 8 or 10 pounds. It us eused to increase aircrafrt pitch stability.

As for the rest of you, under Executive Order 03-05XXXXXX, I am charging you with hijacking of a thread. This crime is punishable by being boiled in oil.

 

[LR25]

Yeah, what he said!

 

[banned username 2]

There is an arm and bellcrank attached to the F/Os control column. To the bellcrank is attached a weight. I can not find how much it weighs, but I seem to recall it is about 8 or 10 pounds. It us eused to increase aircrafrt pitch stability.

As for the rest of you, under Executive Order 03-05XXXXXX, I am charging you with hijacking of a thread. This crime is punishable by being boiled in oil.

Rick,

Thanks for the explaination, I figured it was something along those lines, but wasn't 100% sure.

As far as the rest of your comment, Boiling ANYTHING in oil should be punishable by death, BBQ is the ONLY way to go!

 

[pa56pa]

cooker..

Hmmm.... the holland grill heh? I gotta chk that out....

I'v cooked a whole chicken in a "Turbo-Broiler"... only can be found in asian stores.. who says you can't eat chicken skin?? like chips.!! Hmmmm... when marinated in a Thai BBQ sauce, add garlic, ginger and chopped green onions.... turbo broil for 15 min... who needs to go to Brazil??


Thanks for the numbers on the Lr20s... I'll have an opportunity to hopefully fly one soon...

 

[Airpiraterob]

"I made that big BBQ out of two old BBQ's"

 

[banned username 2]

Hey Falcon Capt, how much did that BBQ of yours cost? What kind (brand) is it?

The one in the picture isn't the exact one I have. I have a Brinkmann Pitmaster Deluxe, it wasn't much, I think about $200-$250... You can buy various kinds of smokers at Menards...

I would recommend if you are starting out, get one of the little Vertical (R2D2) smokers, you can get a cheap one for about $40. Try this for a while before you go to a horizontal one, the vertical are harder to screw up the meat. Just make sure you have a good thermometer on the smoker.

Hope this helps!