Hangar Row business plan

Business plan v2, November 2026. This version rebuilds the plan after a three-person red team (financial model, sales and go-to-market, headcount and operations). Every forward-looking figure is a projection from model.py / model.json (monthly model, reproducible with python model.py model.json). Nothing here is a forecast, an offer, or legal or tax advice. Market data comes from web sources cited inline. Where data is thin, the plan says so. No customers, sponsors, lenders, partners or investors are signed or committed. v1 is kept as plan_v1.md, model_v1.json and model_v1.py.

Research note: this revision's web-search budget was exhausted before it began. Statute claims were verified by fetching the primary sources directly (cited). Market figures that the reviewers could not verify are labelled "unverified".

1. Executive summary

The problem. Owner-pilots in the fast-growing Southwest are parked outside, or on hangar waitlists that run for years. Chandler Municipal's waitlist includes applicants from as far back as 2013, and its city-owned hangars are 100% occupied (AVweb). Flying magazine reports that Chandler, Deer Valley "and just about any other airport near density has a waiting list 10 years long or more" (Flying). Airport sponsors usually have land but not money: 55% of airport managers surveyed said they have developable land but lack funding (Aviation Week).

The offer. We build 20-unit phases of 50x50 and 60x60 box hangars from one standard pre-engineered steel design, on 40 to 50 year ground leases from city and county sponsors, and sell them to owner-pilots as leasehold condominium units. Buyers choose from three locked packages. 80x80 units are built only to order, when a hard deposit is in hand before the GMP is signed. The only unit we keep is one anchor unit for an avionics or maintenance tenant, and only when that tenant has signed an LOI or the sponsor requires it.

What changed after the red team. v1 claimed 5.4x / 78%. That number rested on several assumptions at once: buyer deposits released into construction, cheap preferred equity, about 4% sponsor equity, a 6.5% exit cap, $175 association dues, a fast entitlement path, and no allowance for dead pursuits. v2 underwrites each of these honestly in a monthly model. The result is a much smaller business. It is worth pursuing only if specific gates are met.

Headline numbers (projection, 3 phases, ~8 years, founder-level)

Founder multiple = gross positive flows ÷ gross negative flows over the life of the plan. The upside case (go case plus deposits released, a 12-month entitlement, a 6.5% cap and a fourth phase) reaches 2.75x / 43% pre-tax and 2.05x / 32% after tax. The stress case (go case with hard cost +15% and a 12-month slip) is 0.86x. The bear case is a total loss of about $4.4M of founder cash. See Section 12.

Verdict (plain). On today's evidence, this is not an outsized-return business. It is a development business with thin, cost-sensitive margins, an 8-year cycle, and $6 to 7M of personal guarantees on construction debt. Every $5/sf of hard cost moves the founder multiple by about 0.2x (Section 12). It pays well only if the gates in Section 15 all clear: a GMP of $125/sf hard or less, closed comparable sales supporting $230/sf or more, and a deposit and legal structure confirmed by counsel. Even then, after tax it returns about 1.4 to 1.65x over roughly 8 years. A founder whose existing investments already earn strong returns should treat it as a cheap option to test (about $15k and 30 days, then a $40k 90-day screen). It should not become a commitment until the tests pass.

Why it might still be worth the option. The shortage is real and documented. Sponsors are actively asking for private capital. The product repeats. The gates are cheap to test. If they clear, especially with deposits released and a sponsor that has already done the ALP and NEPA work, the plan reaches 2 to 2.75x on about $2.1M of peak cash, with no recurring operations to manage.

The ask (capital). ~$15k for a 30-day validation sprint (Section 15). ~$40k for the 90-day screen. A pre-development cap of $225k per airport, released only after the gates clear. Founder cash of 10% of each phase's budget (~$0.96 to 1.06M) at loan close. One institutional equity partner funds the remaining ~25% of each phase. Peak founder cash is $2.1 to 2.3M if the gates clear, or $3.5M on today's base.

2. Problem and customer

Primary customer: owner-pilots of high-performance aircraft. Cirrus SR22/SF50, Bonanza, Baron, TBM, PC-12 and very light jet owners. They are typically business owners, physicians, attorneys and retirees aged 45 to 70. Their aircraft are worth $500k to $5M and need a 42 to 60 ft door. Older T-hangars often can't fit wider-winged or taller aircraft (Mead & Hunt).

• Who is not the customer. Most names on municipal waitlists want a $400 to $900/month T-hangar, not a $550k to $800k purchase (red-team point, accepted). We filter waitlists and FAA Registry records by aircraft type (SR22/SF50, Bonanza, Baron, TBM, PC-12, light jets) and expect the list to shrink by 70 to 85% (reviewer estimate).
• How they buy. Through aircraft brokers handling recent high-performance purchases, insurance brokers, type clubs (COPA, ABS, TBMOPA), avionics and MRO shops, and word of mouth on the field. Many pay cash. Leasehold hangar financing is thin. One Arizona project's lender offered 50% LTV (Flying). Refundable reservation deposits are common: Volare Estates at Pegasus Airpark used $25,000 (same source).
• Why they buy rather than rent. We sell scarcity and control: no waitlist, no reassignment, a workshop, and an asset that resells. We do not sell tax savings (Section 3). The buy decision only makes sense where comparable rentals are not available. If box hangars rent at ~$12/sf/yr nearby, a buyer paying ~$226/sf in cash is paying roughly 1.5x the rent-equivalent, and a careful buyer's CPA will say so. We therefore (a) document per airport that no comparable rentals exist, and (b) give every buyer an honest one-page buy-versus-rent comparison.

Secondary customers. Corporate flight departments (80x80, build-to-order only) and flight schools or Part 135 operators needing maintenance space. The anchor unit goes to an avionics or maintenance tenant with a signed LOI.

Partners: airport sponsors (cities and counties). They want the shortage solved without using their own bond capacity, and they want ground-lease revenue. Chandler's 2025 RFP set a minimum ground rent of $0.45/sf/yr and takes 1% of the sale price when a hangar changes hands (AVweb; AZBEX). v2 treats that 1% transfer fee as applying to first sales as well (inside the 6% selling cost).

Evidence of demand - An AOPA Airport Support Network survey (2023, cited by secondary sources) found 71% of GA airports report a shortage of individual GA hangars (Aviation Week). - Volare Estates, Pegasus Airpark (Queen Creek, AZ): about 8 units reserved by word of mouth before any advertising, and 100+ prospects on its interest list. Phase 1 had one unit left in June 2023 (Flying). - A Henderson Executive hangar complex was fully leased before it opened (AIN). - Deer Valley's brochure lists a 36-jet waitlist (undated) (DVT). St. George keeps an active waitlist (St. George policy, Dec 2025).

Caveat. Waitlists overstate real demand (Mead & Hunt). The model needs about 19 buyers per airport within about 25 months (13 hard presales before the loan closes, 6 spec sales after delivery). The gates are 40 or more type-qualified aircraft owners within 30 minutes of the field and 16 or more refundable reservations per phase. They exist to test that number before money is spent.

3. Solution and offer

Product: "The Row". One engineered building family, repeated at every airport.

Base phase mix: 12 x 50x50 + 8 x 60x60 = 58,800 sf. The go-case prices are roughly v1's prices. v2 uses them only if closed sales at that airport support them.

Three locked packages, chosen at hard contract (red-team point, accepted). These replace v1's open option menu, which would have created 14 to 17 change-order streams through one GC. - Shell: the standard unit. - Pilot: adds spray-foam insulation, an epoxy floor, 50A/EV power and LED high-bay lighting. - Executive: adds a restroom and a mezzanine in pre-engineered, pre-permitted positions, plus a hydraulic door upgrade on 60x60s.

No changes are allowed after the GC's buyout date. Anything beyond the packages is done after closing by the owner's contractor, under association rules. Package premiums are excluded from the model (upside).

What the buyer gets 1. A leasehold condominium unit with 40 to 50 years remaining on the ground lease, extension options tied to capital improvements, and leasehold-mortgagee protections. 2. An owners' association run by a third-party manager. It handles the taxilane, apron, master insurance, reserves and the ground-rent pass-through. Dues are realistic: ~$533 per unit per month (Section 7). 3. A "Will my plane fit?" certificate showing the buyer's aircraft drawn to scale with clearances. 4. An ownership checklist covering insurance, the FAA hangar-use rules and resale. v1's tax package is priced at zero. It is not marketed as a reason to pay more. It is offered as a closing courtesy only to buyers who confirm business use, and it always carries "not tax advice; coordinate with your CPA".

Sponsor offer - Ground-lease developer (default). The sponsor contributes land on an approved ALP. Ideally it also funds the taxilane and utility stubs, which is required for the go case. It receives ground rent at or above its minimum, a 1% transfer fee, and new based aircraft. - Track-record route for Phase 1 (red-team point, accepted). Municipal RFPs score experience, and we have none. Phase 1 therefore runs either (a) as a joint venture with an experienced hangar GC or developer who brings the track record, or (b) through unsolicited proposals at airports with no scored RFP. A JV partner will take part of the founder's promote. As a proxy, a 50% promote to capital partners returns 1.37x instead of 1.66x in the go case. - Fee development is no longer a revenue line. It is done only if a sponsor makes it the price of a ground lease.

4. Why now

1. Supply has not followed demand. Hangar stock is flat or aging while fleet dimensions grow (Mead & Hunt). Sponsors are soliciting private capital. Arizona RFPs and approvals in 2025 and 2026 include Chandler (29 units, Vesper Aviation, 30-year lease plus a 10-year option), Wickenburg (RFP 25-02), Buckeye (12 private hangars, Vermillion Development), Williams, Show Low, Kingman, and Lake Havasu City (North Area RFP) (Chandler; Wickenburg RFP; Lake Havasu). Caveat (red team, accepted): the open RFPs are mostly at rural fields with fewer wealthy owner-pilots. The metro relievers where buyers live run slower, competitive processes (Section 8).
2. Institutional interest in hangars. Sky Harbour (NYSE: SKYH) reported 2025 revenue of $27.5M, up 87% (Motley Fool transcript). SR Aviation Infrastructure, Hangarkeeper and Igneo are acquiring hangar complexes (AviationPros). v2 does not rely on them as exit buyers. A handful of condo units inside owner-controlled associations at small relievers is too small for them (red-team point, accepted).
3. Population and wealth growth in the Phoenix, Las Vegas and St. George metros. Arizona alone has 6,500 to 8,500 registered aircraft (ADOT; MyPlane).

5. Market size (bottom-up)

Data is thin. Each layer below is labelled as sourced or assumed.

The model needs ~19 buyers at each of three different airports. That sits at the low end of the 20 to 40 per airport implied above, which is why the reservation and qualified-owner gates come first. v1 planned a second phase at Airport A. v2 does not, unless a second wave of buyers is documented there (red-team point, accepted).

6. Competition and positioning

Honest positioning. There is no technology moat. The only durable advantage is holding the ground lease at an airport with buyers, and established developers with track records compete for the same leases. We do not start with a scoring advantage in an RFP. Hence the JV route and the unsolicited proposals.

7. Business model and pricing

Unit economics, Phase 1 (projection)

Association dues, built bottom-up (per unit per month, 20-unit phase; projection)

Retention economics. At $166.5/sf all-in and a 7.25% cap, a retained unit needs about $16/sf/yr gross rent to be worth its cost, and about $20/sf/yr to match a sale. The model's $12/sf rent is a thin-data proxy. At that rent the anchor unit is worth ~$0.40M against ~$0.60M of cost. Retaining it therefore costs about $0.2M of value per phase. It is justified only if the anchor tenant helps sell the other units or the sponsor requires it. Otherwise we sell the unit, preferably to the anchor tenant.

8. Go-to-market

Airport tiers (red-team point, accepted). Each airport is priced from its own comparable sales, never from one shared Phoenix price. - Tier 1, metro relievers (e.g. Phoenix-area relievers other than Chandler and Deer Valley, Henderson/North Las Vegas, St. George, Prescott). Buyers and pricing are there, but processes are slow and competitive. - Tier 2, rural fields with open RFPs (Wickenburg, Williams, Show Low, Kingman, Lake Havasu). Approvals are faster, but $130 to $170/sf pricing should be expected. The model fails at Tier 2 pricing ($160/sf blended returns 0.0x, a ~$4.9M founder loss), so condo presales there are off the table. Those fields are fee-development or no-go.

The first 10 sponsor conversations, by title. Airport Manager or Director of Aviation at Tier 1 relievers with a development area already on an approved ALP and NEPA complete (a hard screen item, not a nice-to-have). City Economic Development Directors. Clark County Department of Aviation, Real Estate (slow; note the VGT hangar-owner lease dispute, KTNV). State aviation program staff (ADOT, NDOT, UDOT), who know which sponsors have shovel-ready pads.

Buyer channels, ranked by expected yield 1. Type-qualified prospect list. FAA Registry N-number lookups by aircraft type and based airport, plus the sponsor mailing our notice to its own waitlist. Many sponsors redact waitlist contacts, so we ask the sponsor to send it. 2. Referral partners: aircraft brokers (recent high-performance purchases), aviation insurance brokers, avionics and MRO shops. Paid a referral fee inside the 2.5% broker budget. 3. Type clubs and forums (COPA, ABS, TBMOPA, Beechtalk), EAA chapters, fly-ins. 4. Listing broker on 2.5%, with LoopNet and Crexi listings. 5. The configurator with the plane-fit tool. It is a credibility asset, not a labor saver.

Deposit and contract structure (subject to the counsel opinion, Section 14). Refundable reservations (≤$5,000 where Arizona's public-report rules apply; see the ADRE reservation form) come first. They convert to hard contracts with a 10% deposit that becomes non-refundable at GMP. Each hard contract requires proof of funds or a lender pre-approval. Before presales launch, we line up one or two leasehold-hangar lenders with a sponsor-approved loan program, and negotiate a blanket sponsor consent to unit transfers in the master lease.

Pace assumption (projection). 13 of 20 units under hard contract within 9 months of condo docs, then 6 spec sales over 12 months after delivery at a 10% discount. If spec sales take 18 months at a 15% discount, the go case drops to 1.57x.

Channel separation (red-team point, accepted). Buyers are never asked to invest. The equity comes from one institutional partner. The buyer list stays off the investor list.

9. Operations with minimal headcount (honest version)

The red team was right that v1 sold a more passive business than this is. Headcount stays low by structure (one equity partner, locked packages, a contracted owner's rep, master-leased anchor units, sell-out instead of retention). Software does not do it.

Founder hours (estimate, replacing v1's 12-15 then 5-8 hours a week). - ~25 h/week from the go decision to Phase 1 loan close (~month 31). This covers sponsors, ENAs, the counsel opinion, lender and partner terms, and the JV partner. - 15 to 20 h/week through the Phase 1 build and closings (to ~month 56), while Phase 2 is in entitlement. - 12 to 15 h/week afterward: new airports, each phase's capital, and the guarantee.

Rule: no more than 2 airports active at once. Phase 2 starts entitlement at Phase 1 loan close. Phase 3 starts only after Phase 1 delivers. The rule also keeps guaranteed construction debt to roughly one loan at a time (Section 12).

Post-delivery tail. Warranties are passed through to the GC and door manufacturer, with direct assignment to owners. A warranty and defect reserve of 0.5% of hard cost is in every budget. A reserve study is funded before turnover. A project-specific or wrap policy is carried, or the GC's completed-operations coverage is required. Nevada's construction-defect regime (NRS Chapter 40) applies to Nevada projects. Up to three associations will exist by year 8. The developer controls each one until turnover, so turnover comes early.

10. Technology and the prototype

What automation actually saves: about 5 to 10% of hours (red-team estimate, accepted). It automates the cheap parts. - RFP radar (BidNet/GovSpend alerts plus agenda keyword monitoring plus an LLM scorer, ~$100 to $300/month). Kept. - Prospect list. FAA Registry N-number filtering by type and based airport. A spreadsheet-scale job, not an agent. - Presale CRM and e-signature (off the shelf). Escrow and title stay email and phone. There is no "escrow integration". - Draws run on the lender's draw inspector and platform. We do not build our own tracker.

The prototype: "Hangar Row" configurator and phase pro forma 1. Presale configurator. An interactive site plan of a 20-unit phase showing live unit status. Buyers pick one of the three packages only. Will my plane fit? draws the buyer's aircraft to scale with clearances. No after-tax view by default. An illustrative depreciation view appears only if the buyer opts in and confirms business use, labelled "illustrative; consult your CPA". A buy-versus-rent panel shows the honest comparison. 2. Developer pro forma dashboard. It reuses model.json v2. Inputs are hard cost, price, presale count, deposit release, entitlement months, partner terms and dues. It shows sources and uses, monthly loan balance (guarantee exposure), the waterfall, and founder and partner returns pre- and after-tax. Its gate panel turns red when an input crosses a Section 15 gate. 3. Airport opportunity map with tier, qualified-owner count, ALP/NEPA status and go/no-go score. Fields stay "unverified" until documented.

11. Financial plan

Key assumptions (projection; full list in model.json) - Timeline (monthly). Months 1-3 screen. Entitlement P50 = 18 months to an executed ground lease (P25 ~12, P75 ~26; v1 implicitly assumed under 9). Then 9 months of condo documents and hard presales to the 60% gate, then a 12-month build. Phase 1: lease at month 22, loan close and GMP at month 31, delivery at month 43, first closings at month 44 (year 4). Phase 2 (Airport B): loan close at month 58. Phase 3 (Airport C): loan close at month 71. The last unit sale is at month 96. - Cost. Hard $135/sf base, built up below. Contingency 10% on Phase 1 and 7.5% later. Soft 12% of hard, including the $225k at-risk pre-development. Owner's rep 1.75%. Warranty reserve 0.5%. Developer fee 3%. Ground rent from lease execution. Construction interest at 9.0%, accrued monthly on the drawn balance, plus a 1% loan fee. Overruns apply to total hard cost (v1 applied them to a 35% steel share only). - Capital stack. Senior loan 65% LTC, closed at 60%+ hard presales with a bonded GMP. Recourse completion and payment guarantee. Founder cash ≥10% of budget (lender rule). One equity partner funds the rest at a 10% compounding pref plus 30% of profit after the pref. Buyer deposits (10%) are held in escrow. Releasing them is an upside case. - Sales. 13 presold at list, 6 spec at −10% over 12 months, 1 anchor retained (refi sized at min(65% LTV, 1.30x DSCR); 7.25% cap; sold at month 96). - Corporate. Development manager from month 16. $70k/yr overhead. $10k/yr partner reporting. Dead pursuits: with a 40% airport hit rate, each successful airport carries 1.5 failed pursuits at ~$150k average spend, so ~$225k per airport is expensed during entitlement.

Hard-cost build-up, $/sf of building (estimates; a local GMP replaces this)

Phase 1 sources and uses (projection)

Phase 1 waterfall (go case). Sales of $12.33M less $0.74M of selling costs repay the loan first. They then return the partner's $2.45M plus its accrued 10% pref, then the founder's $0.98M. The remainder splits 70% founder / 30% partner. Founder net on Phase 1 is $1.54M (including the $0.22M developer fee). Partner net is $0.89M (1.36x). With deposits released, the founder nets $2.10M.

Annual projection, go case (USD, projection; project-level 100% unless "founder")

There is no recurring EBITDA worth a multiple here. Development gain is lumpy and non-recurring. v1's "Year 5 EBITDA $3.2M" headline has been removed. Base-case (today's inputs) founder pre-tax cash flows are: (297,500), (426,500), (1,121,016), (495,625), (160,145), (954,006), 1,487,250, 1,796,739, 47,877.

Break-even. In the go case, cumulative founder cash is lowest at about −$2.3M (years 4 to 6) and turns positive in year 7. In the base case it never turns positive.

Capital required (founder, go case)

12. Returns

Founder returns (projection; monthly flows, IRR annualized; life of plan ~8 years; pre-tax unless stated)

In the loss cases the senior loan is still repaid from sales (65% LTC). The losses fall on the founder and then the partner, which is why the partner earns 1.1 to 1.2x in the base stress while the founder loses. Tax on losses is shown as zero. Any offset against other income is excluded.

Single changes from the go case (pre-tax)

Hard-cost grid (go-case pricing). The kill gate sits where margin on cost falls below ~25% and the founder multiple below ~1.6x.

Presold units at GMP (go case, remaining units sold as spec): 12 → 1.62x, 13 → 1.66x, 15 → 1.74x, 17 → 1.82x, 19 → 1.90x. Presale share matters much less than in v1, because unsold units are now sold at a discount rather than held at below-cost cap values.

Bridge from v1 to v2 base (each step cumulative, run in the v2 monthly engine; the first row approximates v1 inputs, so it does not exactly reproduce v1's 5.44x)

Cash flow versus exit. There is no meaningful cash-flow path. Anchor-unit NOI peaks at ~$88k a year. The return comes from development gain on each phase as it sells out. There is also no platform exit premium. Developer platforms without retained assets are valued on their contracted pipeline (signed ground leases), and we assume none.

Comparables (cited; data is thin) - Glendale Airpark leasehold, 4,000 sf at a $650k ask ($162.50/sf). This is the closest true leasehold comparable at a similar size. Age and condition are unverified (Cityfeet). - Mesa Gateway leasehold, small 30x40 unit, $374.58/sf ask. Small-unit premiums do not carry over to 2,500 to 3,600 sf (Mesa LoopLink). - Pegasus Airpark, fee simple, ~$266/sf ask. A municipal leasehold should trade at a discount to it (Crexi). - Chandler Aviation Dr resale units and Vesper: price on request (LoopNet). - Conclusion. Asking prices bracket $162 to $375/sf, and no closed leasehold sales at our unit size were found. The base ($218/sf) sits between the leasehold resale ask and the fee-simple new-build ask. The go case ($230/sf) is a gate that requires 12 to 24 months of closed sales at the target airport (through brokers and the county recorder), adjusted for remaining lease term.

13. Risks and mitigations

14. Legal and regulatory checklist (factual; not legal advice)

Federal (FAA) - ☐ Grant Assurances #5, #22, #23 and #24 for obligated airports (lease terms, rates, resale restrictions). - ☐ FAA Policy on the Non-Aeronautical Use of Airport Hangars (81 FR 38906) (FAA). - ☐ FAA Form 7460-1 (14 CFR Part 77). ALP approval and sponsor NEPA (FAA Orders 1050.1 and 5050.4). FAA Order 5190.6 on lease terms.

State condominium and real-estate rules: what v2 verified, and what counsel must confirm - ☐ Nevada. NRS 116.411 requires purchaser deposits to be held in escrow until closing, default or refund, or a surety bond for the deposit amount instead. Deposits for optional items may go directly to the declarant (NRS 116.411). However, NRS 116.12075 says the chapter generally does not apply to a nonresidential condominium unless its declaration opts in, in full or in part (NRS 116.12075). If hangar units are restricted to nonresidential use, the statutory escrow rule may not apply, and deposit treatment becomes a matter of contract, lender and buyer requirements. Counsel to confirm. - ☐ Arizona. A.R.S. 32-2181.02(B)(1) exempts from the public-report requirements "the sale or lease of parcels, lots, units or spaces that are zoned and restricted to commercial or industrial uses" (FindLaw). If the exemption does not apply, pre-report reservations are capped at refundable deposits of ≤$5,000 held in escrow, and no offer to sell may be made before the report issues (ADRE form). A review of the Arizona Condominium Act's section list (A.R.S. 33-1201 et seq.) found no deposit-escrow section. A.R.S. 33-1260 covers resale disclosures, not deposits. Counsel to confirm whether airport or aviation zoning plus recorded aeronautical-use restrictions qualifies as "commercial or industrial". - ☐ Utah. Condominium Ownership Act (Utah Code Title 57, Ch. 8). Not yet reviewed. - ☐ The counsel opinion must answer three questions for each state: does the exemption apply, when can hard contracts be signed, and can deposits be released (and on what terms). Until it does, v2's base and go cases assume deposits are escrowed. - ☐ Possessory-interest and GPLET tax treatment (NRS 361.157; A.R.S. 42-6201 et seq.). Zoning, IBC/IFC/NFPA 409. GC licensing (NV, AZ ROC, UT DOPL). Licensed broker. Stormwater and ADA for common areas. - ☐ Construction-defect regimes: Nevada NRS Chapter 40, and Arizona's purchaser-dwelling-action rules (applicability to hangars to confirm).

Securities and tax - ☐ Institutional partner documents (JV/LLC agreement). If more than one investor is ever needed, use Rule 506(c) with verification, Form D and state notices. - ☐ Dealer versus investor treatment of condo profits. Developer-fee income. State tax. Use a tax advisor. - ☐ Buyer-facing materials make no tax-savings claims. Any depreciation illustration is opt-in, for business use only, and carries a disclaimer. - ☐ Insurance: builder's risk, GL, wrap or completed-operations, association master policy.

15. Validation plan and kill criteria

First 30 days (~$15k, before any pre-development spend) 1. Condo-counsel opinion for AZ, NV and UT (Section 14's three questions). 2. Closed hangar sales for the last 12 to 24 months at 3 to 5 target airports, from brokers and the county recorder. 3. A type-qualified prospect count per airport (FAA Registry N-numbers within 30 minutes). 4. A rent survey at each airport: are comparable box hangars actually available, and at what $/sf? 5. Three sponsor conversations at Tier 1 relievers with ALP/NEPA-complete development areas. 6. One JV conversation with an experienced hangar builder.

Days 31-120: 90-day screen (~$40k). Sponsor visits. Two GMP budgets for the standard design. A lender term sheet. An equity-partner term sheet. Two association-management quotes and an insurance quote. An anchor-tenant LOI. A refundable reservation list at the top 2 airports.

Kill or stop criteria (any one of these stops or re-underwrites the plan)

If any gate fails, the default is to stop, not to look for a reason to proceed. If the deposit and exemption opinion comes back strongly positive and every other gate clears, the plan is at the go-case-plus-released level (2.09x pre-tax / 1.65x after tax).

16. Domain names (proposals; availability not checked here)

1. hangarrow.com: matches the brand
2. taxilane.com: short and aviation-native (likely taken)
3. ownthebox.com: the tagline as a domain
4. skybays.com: brandable, works multi-state
5. rampdeed.com: ownership angle
6. boxhangarco.com: descriptive fallback

17. Red team and response

Three reviewers critiqued v1. They covered the financial model and returns, sales and go-to-market, and headcount and operations. Most of their points were right, and v2 adopts them. The honest result is lower than the red team's own estimate. The financial reviewer estimated "about 3x / 40%+ at ~85% sold". v2's fuller monthly model gives 1.66x / 20% in the go case and 0.97x on today's inputs. The gap comes from costs the red-team estimate left out: corporate overhead over 8 years, probability-weighted dead pursuits, a market promote to the equity partner, ground rent during construction, the owner's rep and warranty reserve, spec-unit discounts, and a P50 rather than fast-case timeline. Where v2 pushes back, it cites evidence.

Financial model and returns

Sales and go-to-market

Headcount and operations

What the plan now says, in one paragraph

On today's evidence this is about a 1.0x, 8-year, guarantee-heavy development business. It should not be pitched as 5.4x. It becomes a 1.7 to 2.1x pre-tax (1.4 to 1.65x after-tax) business only if four things are confirmed cheaply first: a $125/sf hard-cost GMP, $230/sf closed comparable sales, deposit and exemption treatment confirmed by counsel, and a sponsor with ALP/NEPA done and infrastructure funded. It reaches ~2.75x only if those also come with fast entitlement and a fourth phase. The right next step is the $15k, 30-day validation sprint, with a default answer of stop unless every gate clears.

Prepared as a planning document. All projections are illustrative and depend on the assumptions stated. No customers, partners, investors, lenders or sponsors are signed or committed. Every number from web sources should be verified during validation. Unverified reviewer estimates are labelled as such.