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39 votes
Accepted

Why was the DC-9-80/MD-80 so successful despite being obsolete almost from birth?

It's simple. Cheap (development costs amortized decades before) and reliable. They made money for airlines. Or, you know, they wouldn't have bought them. There's more to operating costs than fuel ...
John K's user avatar
  • 132k
32 votes

Why did the RAAF procure the F/A-18 despite being purpose-built for carriers?

Two reasons: The airplane is extremely versatile, while having adequate performance, and is a good choice when a small airforce needs a do-everything airplane to replace multiple types. Being ...
John K's user avatar
  • 132k
32 votes
Accepted

What are the pros and cons of buying a kit aircraft vs. a factory-built one?

The objective is very important. You don't build an airplane because you want one faster or cheaper. Neither is the case. The kit won't be cheaper, and it'll take 1 to 2 thousand manhours, minimum, ...
John K's user avatar
  • 132k
26 votes

Why bother having different engine options on one aircraft?

Engines require a significant amount of specialist maintenence through their life. This means that an airline must train technicians to work on each kind of engine it runs, and maintain stocks of ...
David Richerby's user avatar
16 votes

Why did the RAAF procure the F/A-18 despite being purpose-built for carriers?

Selection of the replacement of the Mirage III was of course carefully considered by the RAAF, and the most suitable airframe was considered for the mission and circumstances typical for a vast, ...
Koyovis's user avatar
  • 61.8k
15 votes

What are the pros and cons of buying a kit aircraft vs. a factory-built one?

The big disadvantages of a kit: it will take you years to have an airplane ready to fly, and you'll be flying an airplane built by a novice builder. The main advantage of a kit: you (often) don't need ...
Zeiss Ikon's user avatar
  • 17.1k
13 votes

What are the pros and cons of buying a kit aircraft vs. a factory-built one?

The other answers are good, there's a couple of aspects that haven't been covered that I'll touch on in my answer. Safety: Kitplanes have a higher rate of accidents overall than certified airplanes. ...
GdD's user avatar
  • 54k
11 votes

Why bother having different engine options on one aircraft?

I would imagine that there are factors like airline maintenance crew familiarity, national identity (think British Airways switching away from Rolls-Royce engines entirely to only GENX), and perceived ...
Robert Rogier's user avatar
11 votes

4 Boeing 707 for $50,000. Is that possible?

Its surely possibly and there are a few things I can think of off hand, Missing Log Books: generally speaking if an aircraft is missing its log books you need to do quite a bit of tear down and ...
Dave's user avatar
  • 101k
10 votes

Why bother having different engine options on one aircraft?

Airlines don't want to buy "engines" at all. From the airlines' point of view, they are just horribly complicated things that they don't understand, and they don't want to spend their own money ...
alephzero's user avatar
  • 3,030
10 votes

After purchasing an aircraft, how do I put the transponder in my name?

I assume you have a Mode S transponder. A Mode S transponder uses a unique 24 bit address assigned by the authorities to your aircraft to communicate with Mode S radars. If you do not have a Mode S ...
DeltaLima's user avatar
  • 83.6k
9 votes

Why was the DC-9-80/MD-80 so successful despite being obsolete almost from birth?

First, the airframe and systems were well-engineered and had few flaws and good aerodynamic qualities. Second, the cost to re-engine it with higher bypass ratio engines would have been high, and as ...
niels nielsen's user avatar
8 votes
Accepted

Why do people put $1 & OVC on aircraft bills of sale?

This practice is really more of an accounting/finance question than an aviation one, but it's common enough that it's probably worth addressing here. When reviewing an aircraft's registration ...
voretaq7's user avatar
  • 68.5k
7 votes

Is a Mooney M20 a difficult plane to fly as a beginner?

You need to be a bit more specific as "M20" refers to a lot of aircraft. An older M20C or M20D (with the fixed gear) should be quite manageable. An M20TN Acclaim is out of the question. Since you ...
Dave's user avatar
  • 101k
6 votes
Accepted

What would be a suitable aircraft for a short haul freight forwarding business?

You would have to provide more answers to the comment I made above. But for a relatively small payload (<4000lbs), I'd say you can't go wrong with a Cessna C208 Caravan. You can buy a good used ...
Romeo_4808N's user avatar
  • 74.1k
6 votes

Why bother having different engine options on one aircraft?

ymb1 answer is good. I would add that often there are political reasons: for example currently you cannot sell GE engine to any Russian company for the trade sanction beetween USA and Russia. If you ...
Gianni Alessandro's user avatar
5 votes

Can the Mexican presidential aircraft be sold?

The type of presidential transport matters. Most governments use regular business jets that can easily be sold off on the commercial market, just as the Mexican president is now planning to do. But ...
MadMarky's user avatar
  • 669
5 votes
Accepted

Can the Mexican presidential aircraft be sold?

Not sure about that specific aircraft, but the Dutch government recently sold its transport (a Fokker 70) for the royal family in anticipation of the arrival of its more capable replacement. I've ...
jwenting's user avatar
  • 16.1k
5 votes

How feasible is it to sell a plane with an expiring annual?

I also know that a lot of people prefer to sell planes with fresh annuals. I think the reality (from what i have seen) is that a a lot of people end up selling planes with a fresh annual. Essentially ...
Dave's user avatar
  • 101k
5 votes

Why did the RAAF procure the F/A-18 despite being purpose-built for carriers?

Why a carrier-capable plane over a land-based plane? Australia has a history of operating carrier craft beginning in the 1920s. At the moment there are two helicopter carriers in the Royal ...
Criggie's user avatar
  • 1,131
5 votes

4 Boeing 707 for $50,000. Is that possible?

Actually $50,000 is a good price, at least for scrap. If the empty weight of each jet is approx 130,000lbs and aluminum sells for roughly 25 cents on the pound of scrap, that gives a scrap value for ...
Romeo_4808N's user avatar
  • 74.1k
5 votes

Why was the DC-9-80/MD-80 so successful despite being obsolete almost from birth?

The MD80 was not obsolete at the time of its first flight and the decade thereafter. The market situation for 150 pax aeroplanes around 1980: Boeing B727-200: first flight 1967. Three JT8D-7/9/11 ...
Koyovis's user avatar
  • 61.8k
5 votes
Accepted

Is there a blue book for private jets that state a price for sale if they have no documentation or logs?

There is no "blue book" for aircraft without documentation. Your best bet is to research government and other auction sites that focus on the disposal of repossessed or confiscated aircraft ...
Juan Jimenez's user avatar
4 votes

Why bother having different engine options on one aircraft?

I would expect that one of the engine options is "best" and that all customers would buy that option. "Best" is a subjective concept. What is best for one airline might not be evaluated the same ...
Joel Coehoorn's user avatar
4 votes

Is a Mooney M20 a difficult plane to fly as a beginner?

Yes learn to fly first at a normal school in their trainers and then go buy a Mooney and get properly checked out on it. You go buy a complex airplane, which, lets not kid ourselves, regardless of ...
John K's user avatar
  • 132k
4 votes

Why was the DC-9-80/MD-80 so successful despite being obsolete almost from birth?

There's also benefit to parts commonality between aircraft, where if all of the DC-9 variants that an airline was flying were using JT8D engines, then that's one less airframe difference to be ...
Milwrdfan's user avatar
  • 1,789
3 votes

Why bother having different engine options on one aircraft?

Engines for an aircraft are more consumables than proper constituent. They will be maintained, overhauled and replaced many times during the lifetime of the airframe, all of which require great number ...
Agent_L's user avatar
  • 1,392
3 votes

What would be a suitable aircraft for a short haul freight forwarding business?

Are you a pilot? Are you familiar with aircraft regulations and operations? I would avoid radial engines. I would seriously consider planes powered by TPE-331over the PT-6. The Metroliner will ...
acpilot's user avatar
  • 6,016

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